Pressure Relief Valve Replacement
Safety valve repair for combi boilers across Greater Vancouver
The pressure relief valve is one of the most critical safety components on your combi boiler. Also known as the T&P (temperature and pressure) valve, it automatically releases water if the internal pressure or temperature exceeds safe limits — preventing a potentially dangerous boiler failure.
A leaking or stuck pressure relief valve requires immediate attention. Our licensed gas fitters can diagnose, replace, and test your boiler's safety valve to restore safe operation and code compliance across Greater Vancouver.
What You Need to Know
Pressure relief valves are designed to fail open — meaning they will leak or discharge water when they reach the end of their service life. A small drip during heating cycles can be normal, but continuous leaking, hissing, or a fully open discharge indicates a faulty valve that needs replacement.
In BC, all gas-fired boiler pressure relief valves must comply with the BC Safety Authority regulations and the manufacturer's specifications. Only licensed gas fitters should perform this replacement.
- Immediate replacement for continuous leaking or discharge
- BC Safety Authority code-compliant installation
- Proper discharge pipe routing to prevent scalding hazards
- System pressure test after replacement to verify operation
Our Service Process
We follow a thorough process to ensure your boiler's pressure relief valve is correctly diagnosed and replaced. Our technicians carry a full range of OEM valves for all major combi boiler brands.
- Diagnose the issue — confirm the valve is faulty (not just system pressure)
- Select the correct OEM replacement valve for your boiler model
- Drain and isolate the boiler, remove the old valve
- Install the new valve with proper thread sealant and torque
- Attach discharge piping per BC code requirements
- Pressure test the system and verify valve operation
- Document the replacement for warranty and service records
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 778-909-5731Frequently Asked Questions
Talk to a Licensed Combi Boiler Specialist
Free, no-obligation quotes across Greater Vancouver. CombiBoiler.ca — A division of ROMA Heating Ltd..