Pressure rising when hot
A big jump as the boiler heats usually means the expansion tank has lost its air cushion.
Water on the floor, a relief valve spitting or a gauge that will not sit still. We trace pressure problems and leaks to their source and fix them properly.
No heat, no hot water or a gas smell? Call any time, day or night.
A hot water heating system is a closed loop with a set pressure, usually around 12 to 15 psi when cold. When that pressure climbs toward 30 psi, the relief valve opens and dumps water. When it keeps falling, water is escaping somewhere. Either way, it is one of the most common reasons Port Coquitlam homeowners call for boiler repair.
Swapping the relief valve rarely solves it, because the valve is usually doing its job. The real cause tends to be a waterlogged expansion tank, a fill valve that leaks through, or a slow leak at a fitting, pump flange or baseboard. Able Pro finds which one, quotes the fix clearly, and leaves you with a stable gauge and a dry floor.
Each symptom narrows down the cause.
A big jump as the boiler heats usually means the expansion tank has lost its air cushion.
Usually a symptom of high pressure, though an old valve can also fail to reseat.
A fill valve that will not shut off slowly overfills the system.
Water is leaving somewhere. We check fittings, pump flanges, vents and baseboards.
Older copper and fittings can weep, leaving green or white crust.
A failed diaphragm lets water fill the tank. We test the charge and replace it if needed.
Homes in Citadel Heights, Mary Hill and Oxford Heights often have systems installed in the 1970s to 1990s, and the original expansion tanks and fill valves are frequent offenders. In Glenwood and Birchland Manor bungalows, older copper and fittings can develop slow leaks.
Townhouse complexes near Lincoln Park and Riverwood have compact systems where a failed expansion vessel inside the boiler cabinet is a common find.
Call (236) 222-2222 any time, especially if water is actively leaking.
We check the expansion tank charge, fill valve and system pressure hot and cold.
We locate the source and give you a clear price for the repair.
We fix it, refill to the correct pressure, purge air and confirm it holds.
We fix why the valve is dripping, not just the valve.
Our technicians are on call around the clock.
You approve the cost before the repair starts.
We dry up and tidy the area before we leave.
Still unsure? Call (236) 222-2222 and talk it through with us.
Water expands as it heats, and the expansion tank is meant to absorb that. If the tank's air charge is gone, pressure spikes instead. Recharging or replacing the tank usually fixes it.
We do not recommend it. The relief valve is a safety device, and if it is dripping because pressure is too high, a new valve will drip too. Find the cause first.
Yes. A sealed system should not need regular refilling. Fresh water brings in oxygen that corrodes iron parts, so finding the leak protects the boiler as well as your floors.
The water itself is mostly a damage risk, but low pressure can cause the boiler to overheat or lock out. If water is near electrical parts, switch off the boiler and call us.
Call (236) 222-2222 now or book online for boiler repair in Port Coquitlam.
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