Leaks & Pressure

Boiler Losing Pressure — Repair in Greater Vancouver

Licensed, same-day diagnosis and repair. Genuine OEM parts, professionally installed — never sold for DIY. Trusted since 1985.

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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.

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.

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

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

How BoilerPart.ca fixes it

1

Diagnose

A licensed technician confirms the true cause — no guesswork or parts-swapping.

2

Quote

You approve the diagnosis and price up front. No hidden fees.

3

Repair

We fit genuine OEM parts to manufacturer spec — installed, not sold for DIY.

4

Test

Full combustion, pressure and safety testing, backed by our workmanship guarantee.

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.

Parts often involved in this repair

Genuine OEM parts we supply and professionally install — never for DIY.

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

Need help with boiler losing pressure?

Licensed, same-day boiler diagnosis and repair across Greater Vancouver.

A Division of CanroHeat.ca · Licensed Gas Fitters · Serving Greater Vancouver since 1985

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