Boiler Pressure Too Low? How to Fix It | BC Wide Heating & Air Conditioning
If your boiler low pressure, you’re not alone — it’s one of the calls we get most often across Greater Vancouver. Here are the usual causes and a few safe things to check before you book a technician.
Common causes
- A leak somewhere in the system
- Recently bled radiators
- A failed expansion vessel
- A faulty pressure relief valve
Safe checks you can do
- Check the gauge — most boilers run ~1.0–1.5 bar cold
- Top up via the filling loop if you’re comfortable, then call us if it drops again
Safety first: never attempt gas or electrical repairs yourself. If you smell gas, leave and call your gas utility’s emergency line. For anything beyond the basic checks above, our TSBC-licensed technicians will diagnose it quickly.
For fast diagnosis and repair across Greater Vancouver, call BC Wide Heating & Air Conditioning at 604-473-9690 or email info@bcwide.ca. TSBC-licensed (LGA0090068), serving the Lower Mainland since 1999.
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27+Years serving Greater Vancouver
20+Brands serviced
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Frequently asked questions
How often should a boiler be serviced?
Annual servicing is recommended for all residential boilers. BC Wide's annual service includes combustion analysis, heat exchanger inspection, expansion tank pressure check, condensate trap cleaning, and a full safety check. Annual maintenance is also required to keep most manufacturer warranties valid.
How much does a new boiler cost in Vancouver?
A typical residential high-efficiency gas boiler in Metro Vancouver costs $7,500–$15,000 installed, depending on size, brand, and whether the system is heating only or a combi unit that also handles hot water. BC Wide provides a free written quote with three options at different price points.
How long does a boiler last?
A well-maintained cast-iron boiler can last 25–30 years, a modern high-efficiency condensing boiler typically lasts 15–20 years, and a combi boiler 12–18 years. Annual servicing has the single biggest impact on lifespan.
My boiler is making a banging or kettling noise. Is that dangerous?
Kettling (a banging or whistling sound) is usually caused by limescale build-up on the heat exchanger and is a sign the system is overheating in localised spots. It will not always cause immediate failure but it shortens the life of the boiler and should be addressed within a few weeks.
Do you service Viessmann, IBC, Baxi, Laars, and Weil-McLain boilers?
Yes. BC Wide is one of the few HVAC companies in the Lower Mainland with deep experience on European and high-end North American boilers including Viessmann, IBC, Baxi, Laars, Weil-McLain, NTI, Navien and Rinnai. We carry common parts in the truck.
Should I repair or replace my old boiler?
A useful rule: if the boiler is more than 15 years old and the repair cost is more than 50% of replacement, replacement is the better investment. BC Wide will give you both a repair quote and a replacement quote and let you decide.
What HVAC services does BC Wide offer in Metro Vancouver?
BC Wide installs, services and repairs boilers, furnaces, heat pumps, hot water tanks, tankless water heaters, gas fireplaces and air conditioning across Metro Vancouver. We work on residential homes, townhouses, condos with strata systems, and small commercial buildings.
How long has BC Wide been in business?
BC Wide Heating & Air Conditioning has been serving the Greater Vancouver area since 1999. Our TSBC-licensed technicians have built a reputation as some of the most experienced furnace, boiler and heat-pump specialists in the Lower Mainland.
What areas do you serve?
We cover all of Metro Vancouver: Vancouver, Burnaby, Richmond, Surrey, Coquitlam, North Vancouver, West Vancouver, New Westminster, Delta, Langley, Port Moody, Port Coquitlam, White Rock, Pitt Meadows, and Maple Ridge.
What Greater Vancouver homeowners say about BC Wide
Verified Google reviews — 4.7 average across 181+ ratings
★★★★★
"Alan and Mo were amazing today. They seamlessly replaced our furnace and tankless hot water tank in record time."
Google review · Aug 2026
★★★★★
"Alan and his colleague are very friendly and professional. They installed everything and left it clean."
Google review · Aug 2026
★★★★★
"I have been using BC Wide HVAC Services for over five years for my annual maintenance."
Google review · Aug 2026
★★★★★
"Excellent service from start to finish! B.C. Wide is knowledgeable, very professional and showed up on time! I highly recommend this company."
Google review · Aug 2026
★★★★★
"I found these guys on Google. I just moved into a place where no maintenance has been done in the last 6 years."
Google review · Aug 2026
★★★★★
"Heat pump, furnace and tankless water heater installed. Competitive price. Careful, friendly, competent, efficient installation team. Professional appearing installation. Good company, highly recommended."
Google review · Jul 2026
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