Same-day and emergency appointments
Up-front pricing before any work starts
Licensed, insured, background-checked technicians
Written safety report after every visit
Toronto & the GTA
Gas Fireplace Repair in Toronto & the GTA
Pilot faults, ignition problems, sooted glass and remote issues — fixed by licensed gas technicians.
Gas fireplaces are simple machines with a few very common failure points: the thermopile, the pilot assembly, the ignition module and the venting. Diagnosing them takes a millivolt meter and a manometer, not guesswork — and in Ontario the work has to be done by a licensed gas technician.
(647) 000-0000Book Gas Fireplace Repair
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Overview
How we approach gas fireplace repair
A pilot that will not stay lit is nearly always a weak thermopile or a dirty thermocouple. Sooting on the glass is almost always an air-shutter or log-placement problem, and it matters: soot means incomplete combustion, and incomplete combustion means carbon monoxide. Log sets that have been rearranged after a cleaning are a surprisingly frequent cause.
We service both direct-vent and B-vent appliances, verify the vent termination and clearances, test gas pressure at the valve, and clean the burner, pilot assembly and glass to manufacturer specification. Every visit ends with a combustion and CO check.
Gas fireplaces are appliances, not furniture, and they need an annual service in the same way a furnace does. The most common faults we attend are a weak thermopile that can no longer hold the gas valve open, a pilot assembly fouled with dust and pet hair, a fan kit seized from years without cleaning, and glass sealed with a gasket that has hardened and no longer maintains the sealed-combustion envelope.
A fireplace that will not stay lit is a diagnostic, not a guess. We measure millivolt output at the thermopile under load, check gas pressure at the appliance while other gas appliances run, and inspect the venting termination — because on homes with several gas appliances the actual fault is often insufficient pressure at the manifold rather than anything wrong with the fireplace itself.
When to book
Service in early autumn. Fireplace faults surface the first weekend people light them, and that is the busiest week of the year for this trade.
What drives the price
Thermopiles, pilot assemblies and gaskets are modest parts; valves, control modules and fan kits for discontinued models are the expensive end.
Call now, or book it in?
Call now
- Any gas smell
- Soot on the glass or the surround
- A CO alarm anywhere in the house
- Flames lifting off or burning yellow
Can be scheduled
- Pilot will not stay lit
- Remote or wall switch not responding
- Fan noisy or not running
- No service in more than a year
Our process
- 1Safety firstGas pressure, leak check and CO reading before anything else.
- 2DiagnoseMillivolt testing of the thermopile and thermocouple, ignition module and valve.
- 3Clean & serviceBurner, pilot assembly, venturi, glass and gasket cleaned to spec.
- 4RepairWritten quote first, then the part replacement.
- 5VerifyLog placement to manufacturer diagram, flame pattern check and a final CO test.
What affects the cost
- Thermopile and thermocouple replacements are the most common and least expensive repairs
- Gas valve and ignition module replacements cost considerably more
- Parts availability for discontinued models
- Whether the glass gasket or the glass panel itself needs replacement
- Built-in appliances that require partial removal to access the firebox
FAQ
Gas Fireplace Repair questions
Why won't my gas fireplace pilot stay lit?
The most common cause is a failing thermopile that no longer generates enough millivolts to hold the gas valve open, followed by a dirty or misaligned pilot assembly. Both are inexpensive, same-visit repairs in most cases.
Why is there black soot on the fireplace glass?
Soot means incomplete combustion — usually an air-shutter adjustment, a partially blocked burner, or logs that have been placed outside the manufacturer's diagram. It should be corrected promptly because incomplete combustion also produces carbon monoxide.
How often should a gas fireplace be serviced?
Annually, before the heating season. An annual service covers the burner, pilot, venting, glass gasket and a carbon monoxide check.
Can I repair a gas fireplace myself?
In Ontario, work on the gas train of an appliance must be performed by a TSSA-registered gas technician. Replacing batteries in a remote or cleaning the glass is fine; anything involving the valve, pilot or venting is not.
Pricing
How much does this cost in Toronto & the GTA?
Typical range is $180 – $950 per repair. Get a number for your own home in about a minute with our instant estimator.
Related
Other services we cover
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No heat? We diagnose and fix gas and electric furnaces the same day.
Air Conditioning Repair
Fast, refrigerant-certified AC diagnosis and repair through the Ontario summer.
Chimney Sweep
Full creosote removal and a camera-verified flue inspection, not just a brush and go.
Chimney Repair
Crowns, caps, liners, flashing and repointing — repairs that stop the water getting in.
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Gas and heat pump pool heaters diagnosed, repaired and pressure-tested.
Duct Cleaning
Full negative-pressure air duct cleaning with before-and-after camera footage.
Dryer Vent Cleaning & Repair
Lint removal, airflow testing and vent line repair — the highest-risk duct in your home.
Furnace Installation & Replacement
Right-sized, correctly vented high-efficiency furnace replacement with a heat-loss calculation.
Emergency Furnace Repair
24/7 no-heat response with stocked ignition, control and blower parts on every truck.
Water Heater Repair & Replacement
Gas and electric tank and tankless diagnosis, repair and replacement — including rental buyouts.
Boiler Repair & Service
Hot water and radiant boiler diagnosis, service and controls work by gas-licensed technicians.
Heat Pump Installation
Cold-climate and hybrid heat pump systems sized and commissioned for Ontario winters.
Gutter & Eavestrough Cleaning
Full eavestrough clear-out, downspout flushing and a flow test before we leave.
Gutter Repair & Installation
Re-pitching, re-hanging, seamless replacement and gutter guard fitting.
Need gas fireplace repair today?
Call for the fastest response, or send a request and we'll confirm your arrival window.