People service their furnace. Almost nobody services their gas fireplace, and it is a gas-burning, vented appliance in a living space — the same category of thing, with the same requirements.
The reason it gets forgotten is that it is decorative. It sits behind glass looking like furniture, it gets used on cold evenings, and it works. Until it does not, or until it does something worse than not working.
What the service covers
Combustion and venting. The fireplace burns fuel indoors and must send the products outside. The venting is checked for integrity, correct termination, and obstruction. Vent terminations outside get blocked by nests, debris and vegetation more often than anything else in this trade.
The burner and pilot assembly, cleaned. Dust and residue accumulate and produce uneven flame, rough lighting, and a pilot that will not stay lit.
The thermocouple or thermopile, the safety device that proves the pilot is lit and shuts the gas off if it is not. It is a consumable part and it is the most common single failure on a gas fireplace.
The gas connection and shutoff, checked for leaks and accessibility.
The glass and its gasket. Direct-vent fireplaces are sealed units, and the glass is part of the seal, not a window. The gasket around it degrades with heat cycling. A failed gasket means the sealed combustion chamber is no longer sealed, which is a venting problem rather than a cosmetic one.
Logs and media positioning. In a gas fireplace with ceramic logs, their position is specified by the manufacturer and it affects how the appliance burns. Logs knocked out of place — during cleaning, or by someone rearranging them to look better — cause sooting and incomplete combustion. This is a genuinely common cause of problems and it looks harmless.
Glass and firebox cleaning. The white haze that builds on the inside of the glass is a normal combustion by-product; heavy sooting is not, and it is a signal.
The signals worth acting on
A flame that is yellow or orange rather than mostly blue with yellow tips. Soot around the appliance or on the glass building faster than it used to. A pilot that keeps going out. A smell when it runs. Glass that has cracked or a gasket that is visibly perished. It not lighting reliably.
Any of those means it should be looked at before it is used again.
Carbon monoxide, again
A gas fireplace is a combustion appliance in a room people sit in. Every home with one needs working carbon monoxide alarms.
If your CO alarm has ever sounded and you could not find a cause, the fireplace is on the list of things to check — particularly if it happened while the fireplace was running.
When to book it
Late summer or early autumn, before the season. Same reasoning as a furnace: any fault found gets fixed before you want the appliance, and technicians are available before the rush.
The practical move is to have the fireplace serviced at the same visit as the furnace. It is a separate appliance with its own requirements, but combining the visit is more efficient than two calls.
Fireplaces that have not been serviced in years
This is most of them, and it is not a scolding — it is the normal situation. If yours has never been serviced, or you have moved into a house with one whose history you do not know, the first service is worth booking as an assessment rather than a routine.
An older fireplace may also have a standing pilot that burns continuously through the year, which some people choose to shut off in summer. Whether yours can be, and how to relight it, is worth asking about while someone is there.
If it is not working right now
Before calling: check that the gas is on at the appliance shutoff, that any wall switch or remote has working batteries, and that the pilot is lit if it has a standing pilot. Those three account for a good share of calls.
If it is more than that, describe what it is doing — does it light and go out, does the pilot hold, is there a smell — and that shortens the visit.
Vancouver, Burnaby, Richmond, Coquitlam, Port Coquitlam, New Westminster. 604-865-7979.
Related: Gas fireplace installation and service · What an annual furnace service actually does · Gas permits and safety inspections
