Condensate trap replacement is usually one of the smaller boiler repairs, but access, drain routing, and freeze exposure all affect what a specific job costs.
Tell us what you need—we’ll call you back fast.
Quick answer
A condensing boiler's condensate trap is generally replaced once it is cracked, warped, or so fouled with sediment that cleaning is not practical, and it is one of the less expensive boiler component replacements because the part itself is a simple plastic assembly. What actually affects the cost for a specific home is access to the boiler's base, how the drain line is routed, and whether freeze exposure on an exterior wall means additional insulation or rerouting is worthwhile at the same time. A licensed technician gives a firm number after inspecting the specific installation.
Need a licensed gas fitter for your gas boiler? Call CANRO at (604) 359-1081 — residential natural-gas heating and hot water across Metro Vancouver since 1999.
This is a small, contained repair, not comparable to the ballpark ranges for a full boiler replacement (roughly $7,500 to $15,000-plus) or a new install (roughly $6,500 to $14,000-plus). Ask your technician for an exact figure once they see the installation.
Homes with the condensate drain routed along an exterior wall or through an unheated crawl space see more freeze-related trap and drain failures during the region's occasional hard cold snaps than homes with fully interior routing. If your boiler has had repeat winter lockouts tied to the condensate system, it is worth asking your technician whether rerouting or insulating the line at the same time as a trap replacement makes sense, rather than replacing the trap again next winter.
Safety note
Condensate trap work is done at the base of gas-fired equipment and should be performed by a licensed technician. If you ever smell gas near the boiler or water heater, leave the home immediately and call FortisBC at 1-800-663-9911 before doing anything else.
No, it is generally one of the smaller and less expensive boiler component repairs, provided the base of the boiler is reasonably accessible.
The boiler is typically only down for the duration of the swap and a short test cycle, usually well under a day on a straightforward installation.
Annual maintenance that includes checking the condensate trap and drain routing catches most developing issues before they cause a lockout.
It should be compatible with your specific boiler model's drain connection and flow requirements; your technician selects the correct part rather than a generic universal one where fit matters.
If the line's routing or exposure caused the original failure, such as freezing on an exterior wall, replacing only the trap without addressing the cause often leads to a repeat failure.
Warranty terms are set by the manufacturer and vary by model and installation date, so it is worth checking your specific certificate before assuming coverage either way.
Family-run, TSBC-licensed (gas LGA0043870 · boiler LBP0046450), serving Metro Vancouver homes since 1999. Residential, natural gas only.
Call (604) 359-1081 Email info@canroheat.ca“Canro does an amazing job! Super professional and skilled with everything—boilers, furnaces, and AC. Always a pleasure working with them!”
“Five stars for Canro. We needed a replacement of a 30-year-old boiler. A new high-efficiency unit was installed—clean, professional work.”
“I can’t speak highly enough about George, who was recommended for a boiler service call for my parents’ home. George is excellent.”
25+ years keeping Metro Vancouver homes comfortable. Honest advice, upfront pricing, work that lasts.