Greater Vancouver
Combi Diverter Valve Replacement in Greater Vancouver
Licensed, gas-certified diagnosis and replacement of your boiler diverter valve — done safely, no DIY. Serving BC homes since 1999.
Quick answer
On a combi boiler, the diverter valve switches the unit between central heating and on-demand hot water. If your boiler diverter valve is failing, a licensed technician must diagnose and replace it — this is not a DIY job. This isn't usually an immediate emergency, but it should be diagnosed by a licensed technician to restore reliable heat and prevent further damage.
What the diverter valve does
On a combi boiler, the diverter valve switches the unit between central heating and on-demand hot water.
Signs your diverter valve may be failing
- Hot water works but no heating (or vice-versa)
- Radiators warm only when a tap runs
- Lukewarm hot water
Important safety note
A stuck diverter valve is an internal component diagnosed and replaced by a technician, who then tests both heating and hot-water modes. Please don't attempt to repair or replace boiler parts yourself — book a licensed technician.
Repair or replace?
Often the diverter valve can simply be replaced. On an older boiler, if several parts are failing or the repair cost is high, a new high-efficiency boiler may be the better long-term value — and may qualify for BC rebates and financing. We give honest options.
Call to check repair and replacement options
Licensed, gas-certified technicians across Greater Vancouver. CombiBoiler.ca — A division of ROMA Heating Ltd..
Combi Diverter Valve replacement by city
This is not a DIY repair
Combi boilers are gas-fired appliances regulated under the BC Safety Standards Act. Opening the unit, touching the gas valve, or working on the flue without a valid BC gas-fitter licence is both unsafe and illegal. Diagnosing the fault is helpful — fixing it should always be left to a certified technician.
Call 778-909-5731Combi Diverter Valve — FAQ
Other boiler parts we replace
Need a Diverter Valve Replaced? Call the Experts
Diagnosed and replaced safely by licensed gas fitters. CombiBoiler.ca — A division of ROMA Heating Ltd..