For most households, an air cleaner running at reduced capacity or not at all is more than just an inconvenience. The impact is felt immediately by anyone with allergies, asthma, or a compromised immune system — and the longer a fault goes unaddressed, the more contaminants recirculate through your home.

Ontario's climate makes this especially critical. During the heating season — from October through April — your home runs sealed with no fresh air exchange. A malfunctioning air cleaner during this period means every contaminant in your home cycles through your HVAC system unfiltered, day after day. The same applies during wildfire smoke events in summer, when outdoor air quality drops and your indoor system is your only line of defense.

That's why we don't limit repair calls to business hours. Air quality issues don't wait for Monday morning, and neither do we.

Not sure if your system needs a service call? Here are the most common warning signs across each type of air cleaner:

Whole-Home Media Filter Systems

• Increased dust settling on surfaces and furniture despite running the furnace
• Allergy or respiratory symptoms returning or worsening among household members
• Musty or stale air smell throughout the home
• Visible debris or particle buildup around supply vents

Electronic / Electrostatic Air Cleaners

• Crackling, popping, or sparking sounds coming from the unit
• Indicator light showing a fault or service alert
• Reduced air quality performance despite clean collection plates
• Ozone smell stronger than usual, which can indicate a cell malfunction
• Visible arcing inside the unit when inspected

UV-C Germicidal Systems

• UV lamp indicator light showing the bulb has failed or is approaching end of life
• The lamp appears dark or significantly dimmer than when first installed
• System is more than 12 months old without a bulb replacement (UV output degrades regardless of appearance)
• Recurring mould issues on HVAC coils or air handler components despite having UV installed

Portable Air Purifiers

• Fan running but airflow feels significantly reduced
• Filter change indicator light has been on for an extended period
• Unusual noise — grinding, rattling, or high-pitched whine
• Unit running constantly at maximum speed without the air quality improving
• Burning smell or the unit cutting out unexpectedly

If you're experiencing any of the above, don't delay. Call us at 1 (888) 675-5907 — our dispatch team is available 24 hours a day, 7 days a week.

All repairs are diagnosed on-site by a licensed HVAC technician. We provide a clear, upfront quote before any work begins — no surprise charges.

We keep the process simple and transparent so you know exactly what to expect from the moment you call.

1. Call or Book Online — Any Time

Reach our dispatch team at 1 (888) 675-5907, 24 hours a day, 7 days a week. Describe the issue and we'll schedule a same-day or next-available appointment depending on urgency and your location.

2. On-Site Diagnostic

A licensed HVAC technician arrives at your home and performs a thorough diagnostic. For whole-home systems, this includes inspecting the filter housing, electrical connections, collection cells or UV components, and integration with your furnace or air handler. For portable units, we assess the motor, filter status, sensors, and controls.

3. Clear, Upfront Quote

Before any repair work begins, we present you with a clear itemized quote — parts, labour, and any applicable service fees. No surprises, no hidden charges. We'll explain what failed, why it failed, and what we recommend.

4. Repair Completed on the Spot

In the majority of cases, repairs are completed during the initial service visit. We carry common replacement parts — filter media, UV bulbs, ionizing cells, fuses, and control components — on our service vehicles to minimize wait time.

5. Performance Verification

After the repair, we verify that the system is operating correctly — checking airflow, electrical function, and integration with your HVAC controls — before we leave your home.

6. Optional Maintenance Plan

To avoid future breakdowns, we offer annual maintenance plans that include scheduled filter replacements, UV bulb changes, system inspections, and priority service scheduling. Many of our customers find a plan pays for itself in the first year.

Constant Home Comfort provides 24/7 air cleaner repair across Ontario, including:

• Toronto and the GTA — North York, Scarborough, Etobicoke, East York
• York Region — Richmond Hill, Vaughan, Markham, Newmarket, Aurora, King City
• Durham Region — Oshawa, Whitby, Ajax, Pickering
• Peel Region — Mississauga, Brampton, Caledon
• Hamilton and surrounding communities
• Ottawa and Kanata
• Barrie and Simcoe County
• Burlington and Halton Region
• Waterloo Region — Kitchener, Cambridge, Waterloo
• London and surrounding area

Not sure if we cover your area? Call 1 (888) 675-5907 and our team will confirm availability.

Not every air cleaner issue warrants a full replacement. Our technicians will always give you an honest assessment, but here are the general guidelines we follow:

We will never push you toward a replacement when a repair is the right call. Our goal is to give you the most cost-effective solution for your home.

The most common reason air cleaners fail prematurely is deferred maintenance. A clogged filter strains the motor. A dirty ionizing cell causes arcing. An expired UV bulb stops protecting your home while appearing to still function. All of these are avoidable with a simple annual service schedule.

Our maintenance plans cover:

• Scheduled filter inspection and replacement
• UV bulb replacement at the 12-month mark
• Electronic cell cleaning and electrical inspection
• Full system performance test integrated with your HVAC equipment
• Priority scheduling for any emergency calls

Ask about our annual maintenance plans when you book your repair — many customers enrol during their first service visit and never deal with an unexpected breakdown again.

How quickly can you respond to an air cleaner repair call?

For emergency calls, our dispatch team will connect you with the nearest available technician right away, with same-day service available in most of our Ontario service areas. For non-urgent calls, we schedule at your convenience, typically within 24–48 hours.

Do you repair all brands of air cleaners?

Yes. Our licensed technicians are trained to service all major whole-home air cleaner brands, including Lennox, Honeywell, Aprilaire, American Standard, Bosch, and others. We also service most popular portable air purifier brands. If you're unsure whether we service your model, call us and we'll confirm before scheduling.

How much does an air cleaner repair cost in Ontario?

Repair costs vary depending on the nature of the fault, the parts required, and the system type. Simple maintenance items like filter replacements or UV bulb changes are low-cost routine services. Component repairs — such as replacing a motor, ionizing cell, or control board — are more involved. We provide a full upfront quote before any work begins, so there are no surprises.

My air cleaner is integrated with my furnace — will the repair affect my heating system?

In most cases, no. Whole-home air cleaner repairs are isolated to the air cleaner components and don't affect furnace operation. In some cases, we may need to temporarily disable the HVAC system during a repair, but this is brief and always communicated to you in advance.

Can I do any air cleaner repairs myself?

Filter replacements and electronic plate washing are maintenance tasks most homeowners can handle safely. However, any repairs involving electrical components — ionizing cells, UV ballasts, control boards, wiring, or motor assemblies — should only be performed by a licensed HVAC technician. Attempting these without proper training risks electrical injury, equipment damage, or voiding your warranty.

Don't let a faulty air cleaner put your family's health at risk. Our licensed HVAC technicians are on call around the clock, with fast response times across Toronto, GTA, Hamilton, Ottawa, Barrie, London, Waterloo, Burlington, and all of Ontario.

We diagnose the problem, give you an honest upfront quote, and fix it right — the first time.

Call us now at 1 (888) 675-5907 — available 24 hours a day, 7 days a week.

Clean air restored. Fast.