A malfunctioning air handler doesn’t care what time it is. When your system goes down in the middle of a January night or on a sweltering July weekend, you need a repair team that picks up the phone and shows up — fast. That’s exactly what Constant Home Comfort delivers.

We’ve been serving Ontario homeowners for years with rapid-response air handler repair and installation. Our certified technicians carry manufacturer-approved parts on every truck, which means we can diagnose and fix most problems on the first visit. No waiting days for a part to arrive. No repeat trips. Just your system working again — as quickly as possible.

If you are experiencing any of the following, do not wait until morning. Call 1-888-675-5907 immediately:

• No heat in your home during freezing temperatures
• No cooling during an extreme heat event (especially with elderly or vulnerable family members at home)
• Water actively leaking from the unit and damaging your home
• Burning smell or electrical odor coming from the unit
• Loud banging or screeching noise that just started
• Complete system shutdown with no response from the thermostat

Our emergency response team is on call around the clock. We will get a certified technician to your home as quickly as possible.

Our technicians repair all makes and models of air handlers — ducted and ductless, residential and light commercial. Here are the most common issues we encounter and resolve:

Blower Motor Failure

The blower motor is responsible for moving air through the system. When it fails, airflow stops entirely — no heating, no cooling, just a running outdoor unit and nothing coming from your vents. Blower motor failures are one of the most common air handler repairs we perform. Signs include humming without airflow, no response when the system is called, or a motor that runs continuously without shutting off.

Frozen Evaporator Coil

When the evaporator coil ices over, airflow is blocked and the system loses its ability to cool or heat effectively. This is typically caused by a dirty air filter restricting airflow, low refrigerant levels, or a blower motor running too slowly. Left unaddressed, a frozen coil can cause compressor damage — a much more expensive repair. If you notice ice on your indoor unit or refrigerant lines, call us right away.

Refrigerant Leak

A refrigerant leak in the air handler’s coil results in reduced cooling or heating capacity, ice buildup on the coil, and in some cases a faint hissing or bubbling sound. Refrigerant handling requires certified technicians — it cannot be safely addressed as a DIY repair. Our technicians are fully licensed to handle, recover, and recharge refrigerant on all current system types.

Clogged or Leaking Condensate Drain

In cooling mode, your air handler removes moisture from the air and drains it away through a condensate line. When this line becomes clogged with algae, debris, or sediment, water backs up into the drain pan and eventually overflows — causing water damage to ceilings, walls, and floors. We flush condensate lines, clear blockages, and install float switches where appropriate to prevent future overflow.

Dirty or Clogged Evaporator Coil

Over time, dust and debris accumulate on the evaporator coil even with regular filter changes. A dirty coil significantly reduces heat transfer efficiency and can cause the system to freeze or overheat. Professional coil cleaning restores efficiency and is typically part of our annual maintenance service.

Capacitor or Electrical Failure

Capacitors help start and run the blower motor. When they fail — which they often do with age or power surges — the motor won’t start, resulting in no airflow. Capacitors are inexpensive parts that our technicians carry on every service truck, making this one of the fastest fixes we perform.

Control Board or Thermostat Communication Failure

Modern air handlers rely on electronic control boards to communicate with the thermostat and manage system operation. A failed control board can cause erratic behaviour — the system not responding to thermostat signals, short cycling, or running continuously. We diagnose and replace control boards for all major brands.

Damaged or Loose Ductwork Connections

In ducted systems, air loss through disconnected or damaged duct connections dramatically reduces system efficiency and causes uneven heating or cooling throughout the home. We inspect, seal, and repair ductwork connections as part of our repair service.

Air Filter Neglect and Airflow Restriction

A severely clogged filter is responsible for more air handler service calls than most homeowners realize. When airflow is restricted, the system overworks, efficiency drops, the coil can freeze, and in extreme cases the blower motor burns out. If your system hasn’t been responding well lately, check your filter before calling — but if the filter looks fine and the problem persists, call us.

Use this reference to understand what your system might be telling you:

When in doubt, call us. A quick phone conversation with our team can help you determine whether the situation is an emergency or can wait for a scheduled appointment.

We’ve designed our repair process to be as fast and stress-free as possible for Ontario homeowners:

Step 1 — Call Us Anytime: Reach our service line at 1-888-675-5907, 24 hours a day, 7 days a week, including weekends and holidays. Tell us your situation and location. We will dispatch the nearest available certified technician.

Step 2 — Same-Day Arrival: In most cases across the GTA, we can have a technician at your door the same day you call. For emergency situations, we prioritize dispatch accordingly.

Step 3 — Thorough Diagnosis: Our technician performs a complete inspection of your air handler — not just a surface-level check. We identify the root cause of the problem, not just the symptom, so we fix it right the first time.

Step 4 — Upfront Pricing: Before any repair work begins, we present you with a clear, written quote for the repair. No surprises on the final invoice.

Step 5 — Repair with Parts On-Hand: Our service trucks carry manufacturer-approved parts for all major brands. In most cases, your repair is completed on the first visit.

Step 6 — System Test and Walkthrough: After the repair, we test the full system to confirm everything is operating correctly before we leave. We walk you through what was repaired, why it failed, and what you can do to prevent a recurrence.

Our technicians are trained and experienced with all major air handler brands, including:

Don’t see your brand listed? Call us anyway. Our technicians have experience with virtually every residential air handler on the market. If we haven’t worked on yours, we will tell you upfront.

When your technician arrives, they will give you a clear, honest answer to this question based on your specific unit and situation. Here’s the framework we use to guide that recommendation:

Repair is typically the right call when:

• The unit is under 8–10 years old
• The repair cost is less than 30–40% of the cost of a comparable replacement
• The issue is a single, identifiable component (motor, capacitor, drain, coil cleaning)
• The unit has a strong repair history and has been well maintained
• The system was recently installed and is still under manufacturer warranty

Replacement is worth considering when:

• The unit is 12–15 years old or older
• Repair cost exceeds 50% of a new, installed replacement
• The system has had multiple breakdowns in recent seasons
• Energy bills have climbed significantly despite a functioning system
• The unit uses outdated refrigerant (R-22) that is no longer manufactured
• You want to take advantage of current government rebates before programs change
• A replacement qualifies for rebates that reduce the net cost significantly

We will never push a replacement when a repair is the right answer. Our technicians are paid the same either way — our business runs on honest service and repeat customers, not upsells.

Constant Home Comfort provides 24/7 emergency air handler repair throughout Ontario, with same-day response times across the Greater Toronto Area. We serve:

Not sure if we cover your area? Call us at 1-888-675-5907 and we’ll confirm availability right away.

When your air handler breaks down, you don’t have time to research companies. Here’s why thousands of Ontario homeowners already have our number saved:

• Truly 24/7 service: Our phone is answered by a real person, around the clock, every single day of the year — including holidays.
• Same-day response: In most GTA locations, we can have a technician at your door the same day you call, including evenings and weekends.
• Parts on every truck: We stock manufacturer-approved parts for all major brands. Most repairs are completed on the first visit.
• Certified and licensed technicians: Every technician who enters your home is fully certified, insured, and trained to work on all makes and models of residential air handlers.
• Transparent pricing: You receive a written quote before any work begins. The price we quote is the price you pay.
• No upsells, no pressure: We diagnose the problem and tell you the truth about whether to repair or replace. Your long-term trust matters more to us than a single transaction.
• Top-rated across Ontario: We are consistently rated among the top HVAC companies in the GTA on BBB, HomeStars, Google, and ReviewBuzz.
• Warranty on all repairs: Our repair work is backed by a labour warranty. We stand behind everything we do.
• Rebate and upgrade guidance: If your system is aging, we will let you know what current rebates are available and whether an upgrade makes financial sense — with no pressure to act.

Emergency repairs are stressful and unpredictable. The best way to avoid them is a consistent maintenance routine. Constant Home Comfort offers annual maintenance plans and protection plans that include:

• Annual professional tune-up and inspection of your air handler and connected equipment
• Cleaning of evaporator coil, drain pan, and blower assembly
• Refrigerant level check and leak inspection
• Electrical connection inspection and capacitor testing
• Filter inspection and replacement guidance
• Priority scheduling for service calls
• Discounts on repairs and parts for plan members
• Peace of mind knowing your system has been professionally maintained

A properly maintained air handler lasts significantly longer, runs more efficiently, and breaks down far less often. Ask about our current plan options when you call.

How quickly can you get a technician to my home?

In most GTA locations, we can dispatch same-day, including evenings and weekends. For emergency situations, we prioritize dispatch immediately. Call 1-888-675-5907 and we’ll give you an accurate ETA based on your location and current technician availability.

Do you charge extra for after-hours or weekend calls?

We maintain transparent pricing for all service calls. Any after-hours or emergency service fees will be clearly communicated before a technician is dispatched, with no surprises on your invoice.

My air handler is making a strange noise but still running. Should I call now or wait?

Don’t wait. Unusual sounds — especially banging, squealing, or grinding — are early warning signs of component failure. Catching the problem early is almost always cheaper than waiting until the system stops entirely. Call us for a same-day or next-day diagnostic appointment.

Can you repair my air handler if it’s an older or uncommon brand?

In most cases, yes. Our technicians carry parts for all major brands and have experience with virtually every residential air handler on the market. If a repair is not feasible due to discontinued parts, we will tell you clearly and provide options.

My system is working but my energy bills have gone up. Could the air handler be the cause?

Absolutely. A dirty evaporator coil, failing blower motor, refrigerant leak, or clogged filter can all cause a system to work harder than it should, driving up energy consumption without a noticeable drop in comfort — until the problem worsens. A diagnostic visit will identify the cause.

What if I need a full replacement after your technician diagnoses my unit?

If a replacement is the recommendation, we provide an on-the-spot quote for a new unit with full installation. We apply all available government rebates and manufacturer promotions to your replacement price, and $0 down, 0% interest financing is available (O.A.C.). You can make a fully informed decision before committing to anything.

Do you offer any warranty on your repair work?

Yes. All repairs performed by Constant Home Comfort are backed by a labour warranty. Parts are covered by their respective manufacturer warranties. We will clearly outline warranty terms at the time of repair.

What should I do while waiting for the technician to arrive?

Turn the system off at the thermostat to prevent further damage. If there is water leaking from the unit, place towels or a bucket and locate your shutoff if accessible. Do not attempt to open the unit or check refrigerant lines yourself. Our technician will walk you through any interim steps when you call.

Don’t sit in the cold or sweat through the night waiting for a repair company to open. Constant Home Comfort is available right now — 24 hours a day, 7 days a week, 365 days a year — with certified technicians, stocked trucks, and a track record Ontario homeowners trust.

Call 1-888-675-5907 — We Answer Every Call, Every Hour

Serving: Toronto | Markham | Vaughan | Scarborough | Mississauga | Richmond Hill | Newmarket | Aurora | Hamilton | Ottawa | Waterloo | London | Barrie | Burlington | Durham | Kanata | and all of Ontario