Hydronic Air Handler Install
Hydronic Air Handler Services by Markham Heating & Air Conditioning
A hydronic air handler works with your boiler or tankless water heater to deliver consistent, efficient heat throughout your home — without combustion air in your living spaces. At Markham Heating & Air Conditioning, we specialize in hydronic air handler installation using Navien’s H2Air accessory paired with NPE-A2 Series tankless water heaters, giving you high-efficiency space heating and endless domestic hot water from one compact system.
Enhance Your Home with a New Hydronic Air Handler
Warmth, Style & Convenience for Every Home

Efficient Whole-Home Heating
Get the Right System for Your Home — Not the Most Expensive One.
Hydronic air handlers use hot water from your boiler or tankless water heater to deliver consistent, even warmth throughout your home with outstanding energy efficiency.

Two Systems in One
Get Comfort and Hot Water, Perfectly Integrated – Not the Most Expensive One.
With Navien’s H2Air accessory paired with NPE-A2 Series tankless water heaters, you get high-efficiency space heating and endless domestic hot water from one smart, compact system.

Clean, Quiet, Reliable Comfort
Get the Right System for Your Home — Not the Most Expensive One.
No combustion air in living spaces, minimal maintenance, and quiet operation make hydronic air handlers a dependable, modern solution for year-round comfort.
Call us, or send us an email for a free estimate
Our Installation Promise
Accurate Load Calculation
We calculate your home’s requirements to ensure your hydronic air handler is properly sized for maximum efficiency and comfort.
Clean, No-Mess Installation
We protect your home throughout the process and leave everything exactly as we found it.
Safety Inspections & Testing
After installation, we conduct detailed checks and performance testing to confirm safe, reliable operation.
Full System Walkthrough & Warranty Setup
We walk you through your new system, answer your questions, and register your warranty before we leave.
Hydronic Air Handler Repairs
If your hydronic air handler isn’t heating properly or you’re noticing airflow issues, we’re here to help. We service all major brands and provide accurate diagnostics.
Is Your Hydronic Air Handler Acting Up? Run Through This Checklist First
Before calling a technician, take a few minutes to check these items.
- Is your thermostat set to Heat? Confirm the thermostat is calling for heat and the temperature is set above the current room temperature.
- Is your boiler or water heater running? The hydronic air handler depends on hot water from a connected boiler or tankless unit. If that appliance has an error code or isn’t firing, that’s where to start.
- Is the air filter clean? A clogged filter restricts airflow through the handler. Check and replace if it’s been more than three months.
- Are the supply and return vents open? Confirm vents throughout your home are open and unobstructed. Restricted airflow reduces heating performance.
- Is there an error code on the water heater or boiler? Take a photo of any fault code displayed — it helps our technicians diagnose the issue faster.
If you’ve worked through this list and your hydronic air handler still isn’t operating properly, give us a call. Markham Heating and Air Conditioning is ready to help — we service all major brands.
Hydronic Air Handler Maintenance & Tune-Up
Hydronic air handler maintenance keeps your system delivering efficient, consistent heat while protecting the connected boiler or water heater from issues that shorten its lifespan. Annual servicing helps catch problems early, maintain warranty requirements, and ensure everything runs safely.
When you book a tune-up with Markham Heating and Air Conditioning, a fully licensed technician will inspect your air handler and its integrated components from top to bottom. We service all major hydronic air handler brands.
Here are a few items covered in our inspection:
| Inspection Item | Why It Matters |
|---|---|
| Thermostat & controls check | Confirms the system calls for heat correctly and responds as expected |
| Air filter inspection & cleaning | A dirty filter reduces airflow and heating performance throughout the home |
| Hydronic coil inspection | Checks for scale buildup or damage that reduces heat transfer efficiency |
| Blower motor & airflow check | Ensures warm air is being distributed properly through the duct system |
| Water connections & flow check | Verifies hot water supply and return lines are flowing correctly |
| Electrical connections & controls | Inspects wiring, relays, and safety controls for safe operation |
| Overall system performance | Confirms the air handler and connected water heater are working in sync |
A full written report of our findings is available on request after every tune-up, so you always know exactly where your hydronic air handler stands.
Why it matters
Regular tune-ups help catch worn parts before they fail, keep your system running efficiently, and protect against safety risks. Staying current with annual maintenance can also be a requirement for keeping your equipment warranty valid.
Ready to book your hydronic air handler tune-up?
Our Brands

Navien
H2Air Hydronic Accessory paired with NPE-A2 Series Tankless Water Heaters
iFLOW
Hydronic Furnaces — Efficient, Reliable Whole-Home Heating
Airmax
Comfort & Efficiency with Hydronic Space Heating
Our Hydronic Air Handler Services Include
Air Handler Installation
We provide expert installation of reliable, energy-efficient gas fireplace designed to meet your home’s specific heating needs. Our team ensures proper sizing, flawless setup, and optimal performance from day one.
Breakdown & Irregular Operation Repairs
We diagnose air conditioner breakdowns, error codes, and irregular operation using manufacturer-approved procedures.
Repairs are completed using OEM-approved parts whenever available to ensure reliability, safety, and long-term performance. Our technicians focus on fixing the root cause—not temporary workarounds—so your system operates as intended.
Preventive Maintenance & Tune-Ups
Regular maintenance keeps your air conditioner running efficiently and helps prevent unexpected breakdowns. Our thorough tune-ups extend system life, improve performance, and ensure safe operation all season long.
Free In-Home Estimates
We offer no-obligation, in-home assessments to help you choose the right heating solution. You’ll receive honest recommendations, transparent pricing, and expert guidance at no cost.
Hydronic Air Handler Services – Markham Heating and Air Conditioning
Hydronic air handler systems are one of the most efficient and comfortable ways to heat your home. By combining the power of hot water heating with forced air distribution, these systems provide consistent warmth, improved energy efficiency, and enhanced indoor comfort throughout the year.
At Markham Heating and Air Conditioning, we specialize in hydronic air handler installation, repair, replacement, and maintenance. Our experienced technicians work with homeowners to design and service systems that deliver reliable performance and optimal efficiency.
Whether you’re upgrading your heating system, integrating with a boiler, or looking to improve your home’s comfort, hydronic air handlers offer a flexible and high-performance solution.
Whitchurch Stouffville Heating & Air Conditioning – Your Trusted HVAC Experts in Whitchurch Stouffville
Delivering Year-Round Home Comfort Since 1983
For over four decades, Markham Heating & Air Conditioning has been the name homeowners trust for dependable, efficient, and honest HVAC services. Based right here in the heart of Markham, we’re proud to serve our community with heating, cooling, and indoor air quality solutions that keep your home comfortable through every season.
From the deep chill of Ontario winters to the humid heat of July, we make sure your systems perform at their best when you need them most. Our team combines old-fashioned craftsmanship with modern technology, ensuring your home stays safe, comfortable, and energy efficient.
We’re not just a service provider — we’re a local company built on relationships, quality work, and integrity. When you call Markham Heating & Air Conditioning, you’re choosing a partner dedicated to long-term comfort and peace of mind.
Comprehensive Heating & Cooling Services in Markham
Furnace Installation and Heating Repair Markham
When temperatures drop below freezing, you need a furnace you can rely on. Markham Heating & Air Conditioning offers expert furnace installation, maintenance, and repairs for all major makes and models. Whether you need a full system replacement or quick repair service, our certified technicians ensure every installation is safe, efficient, and built to last.
We help you select the ideal furnace for your home — one that fits your space, efficiency goals, and budget. Every unit we install is properly sized and fine-tuned for maximum performance and minimal energy waste.
Our heating repair in Markham team responds promptly to service calls and resolves issues right the first time. From ignition failures to airflow problems or strange noises, we diagnose quickly and fix thoroughly.
Our heating services include:
- Furnace installation and replacement
- Emergency heating repair
- Preventative furnace maintenance
- Gas fireplace service
- Thermostat and control upgrades
When it comes to heating in Markham, homeowners have trusted our craftsmanship and honesty since 1983.
Air Conditioning Installation Markham
A dependable air conditioning system is essential for comfort during the humid Ontario summers. At Markham Heating & Air Conditioning, we specialize in air conditioning installation, repair, and maintenance across the Markham area.
Whether you’re upgrading an old, inefficient unit or installing central air for the first time, our expert team provides seamless service from consultation to completion. We design every installation around your home’s specific layout and cooling needs, ensuring balanced temperatures and reduced energy bills.
Our air conditioning installation in Markham service includes only premium equipment and components. We install systems that perform quietly, run efficiently, and deliver lasting comfort — even on the hottest days.
If your air conditioner isn’t cooling properly, we provide quick and reliable AC repair in Markham, backed by decades of experience.
Air conditioning services:
- Central air conditioner installation and replacement
- Ductless mini-split systems
- Air conditioner repair and diagnostics
- Preventative AC maintenance plans
Keep your cool this summer with Markham’s trusted air conditioning experts.
Indoor Air Quality Markham
Comfort isn’t just about temperature — it’s about the air you breathe. Our indoor air quality services in Markham help you maintain a clean, healthy, and balanced home environment.
We offer advanced solutions designed to remove allergens, control humidity, and eliminate airborne contaminants that affect comfort and health. Whether your concern is dry winter air, excessive humidity, or dust and allergens, we have a customized solution.
Our indoor air quality products and services include:
- Whole-home humidifiers and dehumidifiers
- Air purification and filtration systems
- HEPA and electronic air cleaners
- Ventilation and fresh air solutions
These systems integrate seamlessly with your existing HVAC setup, improving comfort and protecting both your home and your health.
Water Heaters and Gas Fireplaces
Markham Heating & Air Conditioning also offers hot water heater installation and service, including both tank and tankless systems. We ensure reliable hot water while maximizing energy efficiency.
If you’re looking to add warmth and charm to your living space, we install and maintain gas fireplaces that combine style, comfort, and convenience. Every installation is handled with care, ensuring safety and long-term performance.
Why Markham Homeowners Choose Us
1. Established Local Expertise
Serving the community since 1983, we’re one of the most experienced HVAC companies in Markham. Our long-standing reputation has been built on consistent results and genuine customer care. We live and work in the same neighborhoods we serve — so your comfort truly matters to us.
2. Fully Licensed and Insured Technicians
Every member of our team is professionally trained, licensed, and insured. We follow strict safety and building code standards for every installation, ensuring your system operates safely and efficiently.
3. Honest Advice, No Pressure
Our approach is simple: we treat your home as if it were our own. You’ll always receive straightforward recommendations, transparent pricing, and no hidden fees. Whether it’s a furnace repair or full AC replacement, we help you make informed decisions with confidence.
4. Quality Workmanship
We take pride in the details. Every installation is clean, organized, and tested thoroughly before we leave. We use premium materials, ensure tidy ductwork, and perform precision calibration for maximum efficiency. Our commitment to craftsmanship is what sets us apart from other Markham HVAC companies.
5. Reliable Service and Maintenance
We understand that HVAC issues can’t wait. That’s why our technicians are responsive, punctual, and respectful of your time. Our maintenance plans help prevent unexpected breakdowns, reduce energy costs, and extend equipment life.
Energy Efficiency and Smart Home Solutions
Modern HVAC systems offer advanced technology that enhances comfort while lowering operating costs. At Markham Heating & Air Conditioning, we help homeowners upgrade to high-efficiency systems and smart thermostats that make everyday living more convenient and sustainable.
By investing in an energy-efficient furnace or air conditioner, you can:
- Lower your monthly utility bills
- Reduce your carbon footprint
- Enjoy more consistent comfort levels
- Qualify for manufacturer and government rebates
Our team will walk you through available energy-efficient models and explain the long-term benefits — because efficiency isn’t just good for your home, it’s good for the planet.
Preventative Maintenance: Protect Your Investment
Regular maintenance is the key to keeping your HVAC system running smoothly year after year. Our Markham HVAC maintenance services include detailed inspections, cleaning, and performance testing to identify potential issues before they become costly repairs.
Benefits of professional maintenance:
- Improved energy efficiency
- Extended equipment lifespan
- Reduced risk of breakdowns
- Better indoor air quality
- Consistent heating and cooling performance
Our technicians create a personalized service schedule that fits your home and system type — ensuring comfort and reliability throughout the year.
Proudly Serving Markham and Surrounding Communities
As a locally owned and operated company, we’re proud to serve not just Markham but also nearby communities including Unionville, Stouffville, Richmond Hill, Thornhill, and North Scarborough.
Every neighborhood we serve benefits from the same commitment to excellence that has defined our company for over 40 years. Whether you’re in an older heritage home in Unionville or a new development in East Markham, we tailor every service to your property’s unique needs.
When you see one of our service vans in your neighborhood, you can be sure that another Markham homeowner is experiencing our hallmark blend of professionalism, honesty, and care.
Our Promise: Comfort. Reliability. Integrity.
At Markham Heating & Air Conditioning, we believe home comfort should be effortless. From your first consultation to the final system check, every step of our process is built around reliability and customer satisfaction.
We’re guided by three simple principles:
- Do it right the first time.
Every installation and repair is performed to the highest standards. - Be transparent and honest.
We provide accurate quotes, clear communication, and no unnecessary upselling. - Stand behind our work.
Your satisfaction is guaranteed — if something isn’t right, we’ll make it right.
This philosophy has earned us a reputation as one of the most trusted HVAC companies in Markham — and it’s why our customers return year after year.
Get Started with Markham Heating & Air Conditioning
Whether you’re looking to replace an aging furnace, install a new air conditioning system, or simply schedule annual maintenance, our team is here to help.
Contact us today to schedule your service or request a free estimate.
Choose the HVAC Company Markham Trusts
When it comes to comfort, quality, and reliability, Markham Heating & Air Conditioning continues to set the standard.
We’ve built our business on integrity, expertise, and exceptional service — and we’re proud to bring those values into every Markham home we visit.
From furnace repair and air conditioning installation to indoor air quality solutions, trust the professionals who have been keeping Markham comfortable for over 40 years.
Markham Heating & Air Conditioning — Craftsmanship. A Fine Tradition.
What Is a Hydronic Air Handler?
A hydronic air handler is a heating system that uses hot water from a boiler or water heater to warm air, which is then distributed through your home using ductwork.
Instead of relying on electric heating elements or combustion inside the air handler itself, hydronic systems use a heat exchanger coil. Hot water flows through the coil, and as air passes over it, the heat is transferred into the air and circulated throughout the home.
This design allows hydronic systems to combine the efficiency of water-based heating with the convenience of forced air distribution.
How Hydronic Air Handlers Work
Hydronic air handlers operate as part of a larger heating system that includes a boiler or water heater.
The process typically works as follows:
- A boiler or water heater heats water
- Heated water is pumped through a coil inside the air handler
- A blower fan moves air across the heated coil
- Warm air is distributed through ductwork into living spaces
This system provides even heating and can be integrated with cooling systems, making it a versatile solution for year-round comfort.
Complete Hydronic Air Handler Services
At Markham Heating and Air Conditioning, we provide comprehensive services to ensure your hydronic air handler system operates efficiently and reliably.
Our services include:
- Hydronic air handler installation
- Hydronic air handler repair
- System replacement and upgrades
- Boiler integration and setup
- Coil replacement and servicing
- Blower motor repair and replacement
- Thermostat installation and upgrades
- System diagnostics and troubleshooting
- Preventive maintenance and tune-ups
Our technicians are trained to handle all aspects of hydronic heating systems, ensuring high-quality workmanship on every project.
Hydronic Air Handler Installation
Installing a hydronic air handler system requires careful planning and professional expertise. These systems must be properly sized and integrated with your home’s existing heating infrastructure to ensure optimal performance.
Benefits of Hydronic Air Handler Installation
Homeowners choose hydronic air handlers for several reasons:
- Consistent and even heating
- Improved energy efficiency
- Reduced energy costs
- Quiet operation
- Compatibility with boilers and water heaters
- Ability to integrate with air conditioning systems
These systems are particularly well-suited for homes that already use hydronic heating or are upgrading from traditional forced air systems.
Installation Process
Our installation process includes:
- Evaluating your home’s heating requirements
- Selecting the appropriate air handler and coil system
- Integrating with boiler or water heater
- Installing ductwork connections
- Configuring thermostat and controls
- Testing system performance
Proper installation is essential to ensure long-term efficiency and reliability.
Hydronic Air Handler Repair
Like any heating system, hydronic air handlers can develop issues over time. When problems arise, prompt repair services are essential to restore comfort and prevent further damage.
Common Hydronic Air Handler Problems
Our technicians regularly diagnose and repair issues such as:
- Lack of heat or insufficient heating
- Airflow problems
- Noisy operation
- Leaking coils
- Faulty blower motors
- Thermostat malfunctions
- Circulation pump issues
- Air trapped in the system
We use advanced diagnostic tools to identify the root cause of the problem and perform effective repairs.
Hydronic Air Handler Replacement
Over time, hydronic air handler systems may become less efficient or require frequent repairs. When this happens, replacing the system can provide improved performance and energy savings.
Signs You Need Replacement
You may need to replace your hydronic air handler if:
- The system is over 15–20 years old
- Repairs are becoming frequent
- Heating performance is inconsistent
- Energy bills are increasing
- Components are worn or corroded
Replacing an outdated system with a modern unit can improve comfort and reduce operating costs.
Types of Hydronic Air Handlers
Hydronic air handlers come in several configurations, each designed to meet different heating needs.
Vertical Air Handlers
Vertical air handlers are typically installed in closets or utility rooms. They are designed for homes with vertical ductwork configurations.
Horizontal Air Handlers
Horizontal units are often installed in attics or crawl spaces and are designed to fit in tighter spaces.
Multi-Speed and Variable-Speed Systems
Modern hydronic air handlers often feature variable-speed blowers that adjust airflow based on heating demand. This improves efficiency and enhances comfort.
Integrated Heating and Cooling Systems
Some hydronic air handlers are designed to work with both heating and cooling systems, providing year-round comfort through a single unit.
Integration with Boilers and Water Heaters
Hydronic air handlers rely on a heat source, typically a boiler or water heater.
Boiler Systems
Boilers provide a consistent source of hot water, making them ideal for hydronic heating systems.
Water Heater Integration
In some systems, high-capacity water heaters are used instead of boilers. These systems can provide both domestic hot water and space heating.
Proper integration ensures efficient operation and reliable performance.
Hydronic Air Handler Maintenance
Routine maintenance is essential to keep your system running efficiently and prevent unexpected breakdowns.
Maintenance Services Include:
- Inspecting heat exchanger coils
- Cleaning blower components
- Checking water flow and pressure
- Testing thermostat operation
- Inspecting electrical connections
- Removing air from hydronic lines
Regular maintenance helps extend system lifespan and maintain efficiency.
Energy Efficiency Benefits
Hydronic air handler systems are known for their energy efficiency. Because water is an excellent conductor of heat, these systems can transfer heat more effectively than traditional forced air systems.
Benefits include:
- Lower energy consumption
- Reduced heating costs
- Improved temperature control
- Less heat loss
Upgrading to a modern hydronic system can significantly improve energy efficiency.
Indoor Comfort Advantages
Hydronic air handlers provide superior comfort compared to many traditional heating systems.
Key benefits include:
- Even heat distribution
- Reduced temperature fluctuations
- Quiet operation
- Improved humidity balance
These features make hydronic systems an excellent choice for homeowners seeking consistent comfort.
Hydronic vs Traditional Forced Air Systems
Hydronic air handlers offer several advantages over traditional forced air systems.
Hydronic Systems:
- Use water for heat transfer
- Provide more consistent warmth
- Operate more efficiently
Traditional Systems:
- Use direct heating elements or combustion
- May experience uneven heating
- Often less efficient
Choosing the right system depends on your home’s needs and existing infrastructure.
Whitchurch Stouffville Heating & Air Conditioning – Your Trusted HVAC Experts in Whitchurch Stouffville
Delivering Year-Round Home Comfort Since 1983
For over four decades, Markham Heating & Air Conditioning has been the name homeowners trust for dependable, efficient, and honest HVAC services. Based right here in the heart of Markham, we’re proud to serve our community with heating, cooling, and indoor air quality solutions that keep your home comfortable through every season.
From the deep chill of Ontario winters to the humid heat of July, we make sure your systems perform at their best when you need them most. Our team combines old-fashioned craftsmanship with modern technology, ensuring your home stays safe, comfortable, and energy efficient.
We’re not just a service provider — we’re a local company built on relationships, quality work, and integrity. When you call Markham Heating & Air Conditioning, you’re choosing a partner dedicated to long-term comfort and peace of mind.
Comprehensive Heating & Cooling Services in Markham
Furnace Installation and Heating Repair Markham
When temperatures drop below freezing, you need a furnace you can rely on. Markham Heating & Air Conditioning offers expert furnace installation, maintenance, and repairs for all major makes and models. Whether you need a full system replacement or quick repair service, our certified technicians ensure every installation is safe, efficient, and built to last.
We help you select the ideal furnace for your home — one that fits your space, efficiency goals, and budget. Every unit we install is properly sized and fine-tuned for maximum performance and minimal energy waste.
Our heating repair in Markham team responds promptly to service calls and resolves issues right the first time. From ignition failures to airflow problems or strange noises, we diagnose quickly and fix thoroughly.
Our heating services include:
- Furnace installation and replacement
- Emergency heating repair
- Preventative furnace maintenance
- Gas fireplace service
- Thermostat and control upgrades
When it comes to heating in Markham, homeowners have trusted our craftsmanship and honesty since 1983.
Air Conditioning Installation Markham
A dependable air conditioning system is essential for comfort during the humid Ontario summers. At Markham Heating & Air Conditioning, we specialize in air conditioning installation, repair, and maintenance across the Markham area.
Whether you’re upgrading an old, inefficient unit or installing central air for the first time, our expert team provides seamless service from consultation to completion. We design every installation around your home’s specific layout and cooling needs, ensuring balanced temperatures and reduced energy bills.
Our air conditioning installation in Markham service includes only premium equipment and components. We install systems that perform quietly, run efficiently, and deliver lasting comfort — even on the hottest days.
If your air conditioner isn’t cooling properly, we provide quick and reliable AC repair in Markham, backed by decades of experience.
Air conditioning services:
- Central air conditioner installation and replacement
- Ductless mini-split systems
- Air conditioner repair and diagnostics
- Preventative AC maintenance plans
Keep your cool this summer with Markham’s trusted air conditioning experts.
Indoor Air Quality Markham
Comfort isn’t just about temperature — it’s about the air you breathe. Our indoor air quality services in Markham help you maintain a clean, healthy, and balanced home environment.
We offer advanced solutions designed to remove allergens, control humidity, and eliminate airborne contaminants that affect comfort and health. Whether your concern is dry winter air, excessive humidity, or dust and allergens, we have a customized solution.
Our indoor air quality products and services include:
- Whole-home humidifiers and dehumidifiers
- Air purification and filtration systems
- HEPA and electronic air cleaners
- Ventilation and fresh air solutions
These systems integrate seamlessly with your existing HVAC setup, improving comfort and protecting both your home and your health.
Water Heaters and Gas Fireplaces
Markham Heating & Air Conditioning also offers hot water heater installation and service, including both tank and tankless systems. We ensure reliable hot water while maximizing energy efficiency.
If you’re looking to add warmth and charm to your living space, we install and maintain gas fireplaces that combine style, comfort, and convenience. Every installation is handled with care, ensuring safety and long-term performance.
Why Markham Homeowners Choose Us
1. Established Local Expertise
Serving the community since 1983, we’re one of the most experienced HVAC companies in Markham. Our long-standing reputation has been built on consistent results and genuine customer care. We live and work in the same neighborhoods we serve — so your comfort truly matters to us.
2. Fully Licensed and Insured Technicians
Every member of our team is professionally trained, licensed, and insured. We follow strict safety and building code standards for every installation, ensuring your system operates safely and efficiently.
3. Honest Advice, No Pressure
Our approach is simple: we treat your home as if it were our own. You’ll always receive straightforward recommendations, transparent pricing, and no hidden fees. Whether it’s a furnace repair or full AC replacement, we help you make informed decisions with confidence.
4. Quality Workmanship
We take pride in the details. Every installation is clean, organized, and tested thoroughly before we leave. We use premium materials, ensure tidy ductwork, and perform precision calibration for maximum efficiency. Our commitment to craftsmanship is what sets us apart from other Markham HVAC companies.
5. Reliable Service and Maintenance
We understand that HVAC issues can’t wait. That’s why our technicians are responsive, punctual, and respectful of your time. Our maintenance plans help prevent unexpected breakdowns, reduce energy costs, and extend equipment life.
Energy Efficiency and Smart Home Solutions
Modern HVAC systems offer advanced technology that enhances comfort while lowering operating costs. At Markham Heating & Air Conditioning, we help homeowners upgrade to high-efficiency systems and smart thermostats that make everyday living more convenient and sustainable.
By investing in an energy-efficient furnace or air conditioner, you can:
- Lower your monthly utility bills
- Reduce your carbon footprint
- Enjoy more consistent comfort levels
- Qualify for manufacturer and government rebates
Our team will walk you through available energy-efficient models and explain the long-term benefits — because efficiency isn’t just good for your home, it’s good for the planet.
Preventative Maintenance: Protect Your Investment
Regular maintenance is the key to keeping your HVAC system running smoothly year after year. Our Markham HVAC maintenance services include detailed inspections, cleaning, and performance testing to identify potential issues before they become costly repairs.
Benefits of professional maintenance:
- Improved energy efficiency
- Extended equipment lifespan
- Reduced risk of breakdowns
- Better indoor air quality
- Consistent heating and cooling performance
Our technicians create a personalized service schedule that fits your home and system type — ensuring comfort and reliability throughout the year.
Proudly Serving Markham and Surrounding Communities
As a locally owned and operated company, we’re proud to serve not just Markham but also nearby communities including Unionville, Stouffville, Richmond Hill, Thornhill, and North Scarborough.
Every neighborhood we serve benefits from the same commitment to excellence that has defined our company for over 40 years. Whether you’re in an older heritage home in Unionville or a new development in East Markham, we tailor every service to your property’s unique needs.
When you see one of our service vans in your neighborhood, you can be sure that another Markham homeowner is experiencing our hallmark blend of professionalism, honesty, and care.
Our Promise: Comfort. Reliability. Integrity.
At Markham Heating & Air Conditioning, we believe home comfort should be effortless. From your first consultation to the final system check, every step of our process is built around reliability and customer satisfaction.
We’re guided by three simple principles:
- Do it right the first time.
Every installation and repair is performed to the highest standards. - Be transparent and honest.
We provide accurate quotes, clear communication, and no unnecessary upselling. - Stand behind our work.
Your satisfaction is guaranteed — if something isn’t right, we’ll make it right.
This philosophy has earned us a reputation as one of the most trusted HVAC companies in Markham — and it’s why our customers return year after year.
Get Started with Markham Heating & Air Conditioning
Whether you’re looking to replace an aging furnace, install a new air conditioning system, or simply schedule annual maintenance, our team is here to help.
Contact us today to schedule your service or request a free estimate.
Choose the HVAC Company Markham Trusts
When it comes to comfort, quality, and reliability, Markham Heating & Air Conditioning continues to set the standard.
We’ve built our business on integrity, expertise, and exceptional service — and we’re proud to bring those values into every Markham home we visit.
From furnace repair and air conditioning installation to indoor air quality solutions, trust the professionals who have been keeping Markham comfortable for over 40 years.
Markham Heating & Air Conditioning — Craftsmanship. A Fine Tradition.
Troubleshooting Hydronic Air Handler Issues
If your system is not performing properly, common troubleshooting steps include:
- Checking thermostat settings
- Inspecting airflow and filters
- Ensuring proper water circulation
- Listening for unusual noises
Professional diagnosis is recommended for accurate repairs.
Why Choose Markham Heating and Air Conditioning
Choosing the right HVAC company is essential for ensuring reliable system performance.
Homeowners trust Markham Heating and Air Conditioning because we provide:
- Experienced technicians
- Comprehensive HVAC expertise
- Reliable installation and repair services
- High-quality equipment
- Transparent pricing
We are committed to delivering long-term comfort and dependable solutions.
Schedule Hydronic Air Handler Service Today
If you need professional hydronic air handler installation, repair, or maintenance, Markham Heating and Air Conditioning is here to help.
Our experienced team provides expert solutions to ensure your heating system operates efficiently and reliably.
Contact us today to schedule a consultation or service appointment.










