Can you fix boiler losing pressure in Mission?

Yes. BoilerPart.ca provides licensed, same-day diagnosis and repair for boiler losing pressure throughout Mission and the surrounding Fraser Valley, including Downtown Mission, Hatzic, Silverdale, Stave Falls. ca finds the cause across Greater Vancouver rather than just topping it up.

Why does my boiler keep losing pressure?

Usually a small leak in the system, a failed expansion tank, or a leaking relief valve. We find the actual cause instead of just topping it up.

Is low boiler pressure dangerous?

Low pressure usually just stops the boiler working; the concern is the underlying leak, which we locate and repair.

Mission, Fraser Valley

Leaks & Pressure

Boiler Losing Pressure in Mission

Same-day, licensed boiler help across Mission. Genuine OEM parts professionally installed — never sold for DIY. Trusted since 1985.

Call (604) 359-1081

Quick Answer

A boiler that keeps losing pressure usually has a small leak somewhere in the system, a failed expansion tank, or a leaking pressure relief valve. BoilerPart.ca finds the cause across Greater Vancouver rather than just topping it up.

Boiler Losing Pressure help for Mission homes

If you’re constantly topping up the pressure, water is escaping somewhere or the expansion tank has failed. Repeated top-ups mask a fault that should be found and fixed.

Our licensed technicians cover every Mission neighbourhood — including Downtown Mission, Hatzic, Silverdale, Stave Falls, Steelhead, Cedar Valley — with genuine OEM parts and a workmanship guarantee.

What you’re noticing

Pressure gauge keeps dropping
Needing to top up often
Boiler locks out on low pressure
Damp patches on pipework

Common causes

Small system leak (radiator, pipe, fitting)
Failed expansion tank
Leaking / discharging pressure relief valve
Failed automatic air vent or seal

What you can safely check first

Beyond these safe checks, do not open the boiler or touch gas, electrical or sealed components — BC law requires a licensed gas fitter. Call us for a proper diagnosis.

Note how quickly pressure drops

Look for visible damp patches on radiators/pipes

Check outside for relief-valve discharge

Top up only to the normal band if you know how

When this is urgent in Mission

Not usually urgent unless it locks out the boiler in the cold.

Parts Are Professionally Installed — Not Sold for DIY

For your safety and to keep your manufacturer warranty valid, BoilerPart.ca does not sell loose boiler parts over the counter or for self-installation. Under BC regulations, gas appliance components must be installed by a licensed gas fitter. Every part we source is genuine OEM and is professionally fitted, tested, and certified by our Technical Safety BC–licensed technicians as part of a complete repair or installation.

Our Guarantees & Warranties

Every repair and installation is backed by genuine parts, licensed workmanship, and a promise to make it right.

Workmanship Guarantee

Every repair and installation is backed by our written workmanship guarantee. If a part we installed fails because of our work, we make it right.

Genuine OEM Parts

We fit only manufacturer-original (OEM) components so your boiler performs to spec and keeps its factory warranty intact.

Manufacturer Warranty Honoured

As an authorised service provider for the brands we work on, our installs preserve and register your manufacturer parts warranty.

Licensed & Insured

All work is completed by Technical Safety BC–licensed gas fitters. We are fully licensed, bonded and insured for your protection.

Up-Front Pricing

You approve the diagnosis and quote before any work begins. No hidden fees and no surprise charges.

Satisfaction Commitment

Backed by the full HVAC resources of CanroHeat.ca and four decades of service in Greater Vancouver since 1985.

Frequently Asked Questions