Commercial Rooftop Install
Commercial Rooftop Unit Repairs, Installation & Maintenance
At Markham Heating & A/C, we provide reliable, no-nonsense commercial rooftop unit (RTU) services for businesses across Markham and the Greater Toronto Area. Whether you operate a mid-size office, restaurant, or retail space, our licensed technicians deliver practical solutions that keep your system running efficiently — without upselling or unnecessary downtime.
Reliable Rooftop Unit Performance for Your Business
Your business depends on consistent heating and cooling. At Markham Heating & A/C, we provide dependable RTU solutions that keep your operations running smoothly — without unnecessary upsells or downtime.
Fast, Reliable RTU Repairs
Get the right solution for your business — not the most expensive one.
When your rooftop unit fails, you need quick action. We provide 24/7 emergency RTU repairs to restore comfort and minimize disruption to your operations.
Expert Installation & Replacement
Get the right system for your building — not the most expensive one.
Whether you’re upgrading or installing new, we recommend and install systems that match your space, usage, and budget for long-term performance.
Preventive Maintenance & Protection
Get the Right System for Your Home — Not the Most Expensive One.
Routine maintenance helps prevent breakdowns, improves efficiency, and extends the life of your rooftop unit — saving you time and money.
Call us, or send us an email for a free estimate
Our Commercial Rooftop Unit Services
With professionally serviced rooftop units, your business can maintain consistent comfort, energy efficiency, and reliable performance year-round. We help reduce downtime, control operating costs, and ensure your HVAC system runs exactly as it should.
RTU Installation & System Setup
We install high-performance rooftop units designed to match your building’s size, usage, and airflow requirements — ensuring reliable, efficient operation from day one.
RTU Replacement & Upgrades
Upgrade outdated or inefficient systems with modern, energy-efficient RTUs that improve performance, reduce energy costs, and support long-term reliability.
RTU Diagnostics & Performance Testing
We assess your system’s performance, identify issues early, and recommend practical solutions to keep your equipment running smoothly and avoid costly breakdowns.
Preventive Maintenance & Service Plans
Regular inspections, cleaning, and tune-ups keep your rooftop unit operating at peak efficiency while extending its lifespan and reducing unexpected repairs.
Professional Rooftop Unit Repairs
We diagnose and repair commercial rooftop units for most major HVAC systems. If your rooftop unit isn’t performing the way it should, our licensed technicians will quickly identify the issue and restore your system with minimal disruption to your business.
From airflow issues and electrical faults to worn components, we provide straightforward, reliable solutions that get your heating and cooling back on track.
We service all makes and models
Our Commercial Rooftop Unit Services Include
Rooftop Unit Installation
Expert installation of reliable, energy-efficient rooftop units designed and sized correctly for your commercial space from day one.
Breakdown & Irregular Operation Repairs
We diagnose rooftop unit breakdowns, system errors, and performance issues using manufacturer-approved methods. Our technicians fix the root cause — not temporary workarounds — to keep your system running reliably.
Preventive Maintenance & Tune-Ups
Routine maintenance keeps your rooftop unit operating efficiently, reduces the risk of unexpected breakdowns, and extends the life of your equipment.
Free On-Site Estimates
We provide no-obligation, on-site assessments to help you choose the right solution for your business. Expect honest recommendations, clear pricing, and expert guidance — at no cost.