Humidifiers Maintenance
Keep Your Indoor Air Balanced with Humidifier Maintenance by Markham Heating & Air Conditioning
Your whole-home humidifier works hard all winter to protect your family from dry air, static, and irritated skin and sinuses. Over time, mineral buildup and worn parts can reduce its performance and even affect air quality. At Markham Heating & Air Conditioning, our certified technicians provide thorough humidifier maintenance to keep your home’s air healthy and comfortable all season long.
Humidifier Maintenance Services
Let Markham Heating & Air Conditioning Keep Your Humidifier Clean, Efficient, and Ready for Winter
Pre-Winter Humidifier Servicing
Our certified technicians clean, inspect, and adjust every major component so your humidifier delivers balanced, comfortable humidity all winter long.
Cleaner Air, Fewer Problems
A well-maintained humidifier prevents mineral buildup, mold, and leaks, keeping your indoor air healthier and helping your system last longer.
Caring Local Technicians
As a reliable local company, we provide honest recommendations, transparent pricing, and maintenance plans that keep your system worry-free.
Call us, or send us an email for a free estimate
Our Maintenance Promise
We take pride in delivering thorough, hassle-free humidifier maintenance from start to finish. Our technicians follow a detailed checklist to catch small problems early, restore peak performance, and keep your indoor air healthy through every Canadian winter.
Water Panel Replacement
We replace the water panel or evaporator pad to remove mineral buildup and keep your humidifier adding moisture efficiently.
Cleaning & Descaling
We clean the housing, distribution tray, and drain lines to remove scale and prevent mold, leaks, and unpleasant odours.
Valve & Drain Inspection
We inspect the solenoid valve, water supply, and drain lines for wear and blockages to keep water flowing properly.
Humidistat Calibration & Advice
We calibrate your humidistat to the ideal level, walk you through our findings, and give honest tips to keep your system running its best.
Our Brands
At Markham Heating & Air Conditioning we trust Aprilaire home humidifiers to
introduce moisture back into our client’s homes.
Aprilaire
Whole-Home Humidifiers, Dehumidifiers & Air Purifiers
General Aire
Full Line of Efficient, Effective & Reliable Indoor Air Quality Products
Is Your Humidifier Not Working? Check These Items First
Before calling a technician, a few quick checks may save you the cost of a service call.
- Is your humidistat set correctly? Make sure it’s set to a level above your home’s current humidity — typically 35-45% in winter. If it’s set too low, the unit won’t run.
- Is the water supply on? Check that the saddle valve or water supply line feeding the humidifier is open. It can occasionally get bumped closed.
- Is the furnace running? Most whole-home humidifiers only operate when the furnace blower is running. If the furnace isn’t calling for heat, the humidifier may not run even if it’s working correctly.
- When was the water panel last replaced? A clogged or mineral-encrusted water panel is the most common cause of reduced humidifier output. Most manufacturers recommend replacing it once per season.
- Is there a visible water leak? Check the drain line and connections for drips or pooling water. A blocked drain or loose fitting is often the cause.
If you’ve worked through this list and your humidifier still isn’t operating properly, give us a call. Markham Heating and Air Conditioning is ready to help — we service all major brands.
Humidifier Maintenance & Tune-Up
Annual humidifier maintenance keeps your unit operating at peak performance and prevents mineral buildup, leaks, and reduced output. Regular servicing extends equipment life and ensures your home maintains healthy humidity levels all winter long.
When you book a tune-up with Markham Heating and Air Conditioning, a fully licensed technician will inspect and service your humidifier thoroughly. We service all major humidifier brands including Aprilaire and GeneralAire.
Here are a few items covered in our inspection:
| Inspection Item | Why It Matters |
|---|---|
| Humidistat calibration & operation | Confirms the humidistat is reading correctly and triggering the unit at the right humidity level |
| Water panel inspection | Checks for mineral buildup, damage, or blockage — replaced if needed |
| Water supply line & flow check | Verifies adequate water supply and correct flow rate through the distribution tray |
| Drain line inspection | Checks for blockages, kinks, or buildup that can cause leaks or standing water |
| Solenoid valve operation | Confirms the water valve opens and closes correctly on demand |
| Cabinet & internal components | Inspects housing, distribution tray, and internal parts for corrosion or damage |
| Overall output verification | Confirms the unit is adding adequate moisture relative to its rated capacity |
A full written report of our findings is available on request after every tune-up, so you always know exactly where your humidifier 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 humidifier tune-up?