Same-Day Boiler Repair in Port Coquitlam
Boiler losing pressure, locking out, or leaving part of the house cold? Eaton's Heating provides same-day boiler repair across Port Coquitlam for Navien, Bosch, Viessmann, and every other residential brand. The $189 diagnostic traces the fault through the full system, from the boiler itself through the piping, zone valves, and controls, because the cause is often far from where the symptom shows up. Every repair is quoted for your approval before work starts, and OEM parts carry a six-month warranty on parts and labour.
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A hydronic heating system is a closed loop: the boiler heats the water, circulators push it through piping to radiators or in-floor tubing, zone valves direct it where each thermostat calls for heat, and an expansion vessel absorbs the pressure changes as the water heats and cools. When something fails anywhere in that loop, the symptom usually shows up somewhere else entirely. A homeowner who notices the upper floor cooling while the main floor stays warm might assume the problem is near the cold rooms, but the actual cause could be a zone valve stuck closed two floors below, or a circulator that has lost enough output to stop pushing water to the farthest loops. Pressure that drops overnight could trace to a corroded fitting behind a finished wall, a relief valve discharging because the expansion vessel has lost its charge, or a slow leak at a radiator connection in a room nobody checks. Diagnosing these problems means testing water flow and pressure at multiple points through the system, not just checking whether the unit fires. That is what the $189 diagnostic covers, and it is why boiler work requires hydronic experience rather than general HVAC knowledge.
Port Coquitlam's boiler-heated homes are a small subset of the city's housing, but they follow a clear pattern. The older homes around Central Port Coquitlam, Mary Hill, and Lower Mary Hill include properties where radiator distribution was part of the original build, and those systems have been running on original cast-iron radiators and aging piping through multiple boiler replacements. Combi boilers have become more common in renovated homes across the city, handling both space heating and domestic hot water from a single wall-hung unit, and these bring a different set of diagnostic demands: electronic fault codes, flow sensor readings, and diverter valve behaviour that a technician trained only on legacy equipment will not recognize. Citadel Heights and Riverwood have pockets of homes with in-floor radiant heating, where the boiler feeds a manifold that splits flow across multiple loops, each with its own actuator and thermostat.
Six months of sustained dampness on the valley floor between three rivers wears on hydronic components steadily. Pipe fittings corrode, radiator valve seats weaken, and expansion vessel connections deteriorate. The piped water inside a sealed hydronic loop sits under pressure year round, and when a corroded fitting or weakened joint gives way, the system keeps feeding water to the failure point whether the boiler is running or not. In Port Coquitlam's older homes where the piping and fittings have been in the walls for decades, slow leaks at corroded joints are the most common source of pressure loss, and the damp basement conditions accelerate that corrosion steadily over the years.
Eaton's Heating has carried hydronic repair as a core service for over twenty years. Our technicians move between electronic diagnostics on modern Navien, Viessmann, and Bosch condensing platforms and hands-on pressure testing on older Weil-McLain, IBC, and NTI cast-iron systems without missing a step. Technical Safety BC licence LGA0200006, FortisBC Trade Ally, BBB A+, HPCN registered, WorkSafeBC covered, and 400-plus Google reviews at 4.9. Every part is OEM and CSA certified, with six months of coverage on parts and labour.
Leaks and pressure failures get same-day priority because the damage from a boiler leak compounds by the hour in a way that other heating failures do not. When the repair cost starts approaching what a modern condensing boiler would cost to install, we show both numbers clearly. The piping, radiators, and in-floor loops in a hydronic home represent most of the system's installed value, and they are already built into the house. Replacing a failed boiler connects a new unit to that existing infrastructure, so the homeowner keeps heating the same way without starting over. Our boiler installation page for Port Coquitlam covers what a replacement includes. For homeowners considering a move to forced air, we also install furnaces and heat pumps, though in most cases the existing hydronic distribution is worth keeping.
Whether to repair or replace depends on which component failed. Circulator pumps, zone valve actuators, expansion vessels, ignition parts, and sensors are all worth fixing on a boiler that is otherwise sound. A cracked or heavily scaled heat exchanger on a unit past its mid-twenties is where the conversation shifts, because the repair cost approaches or exceeds what a modern condensing boiler would cost to install into the existing distribution.
That existing distribution is what makes the decision simpler than homeowners expect. Radiators, in-floor loops, manifolds, and the piping connecting them represent the majority of the system's installed cost, and they are already built into the house. A new boiler drops into that same infrastructure. Qualifying high-efficiency boiler replacements can be eligible for FortisBC and CleanBC rebate programs, and as a FortisBC Trade Ally we confirm what currently applies and file the application after installation. Financeit at zero percent over 12 months is available.
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Have a question about your HVAC system? Book an appointment using the form below, or call (604) 535-8434 for immediate help.
Leaks and no-heat calls in radiant-only homes go to the front of the line and are dispatched same day. A boiler leak does not stop when the system shuts off, so response time matters more on these calls than on most. Routine problems like a zone that will not warm or an occasional lockout book into regular slots, usually within a day or two. Call (604) 535-8434.
Usually, yes. A combi is one appliance doing two jobs, so when it fails, both go at once. The diagnostic starts by identifying which function dropped first. If hot water stopped while the radiators kept working, the diverter valve or the plate heat exchanger is the likely cause. If the entire unit locked out, the fault is typically upstream: ignition, system pressure, or water flow. Either way, combi failures get same-day priority because the household loses heat and hot water together. If your hot water comes from a separate tank or tankless unit, that falls under our tankless water heater or hot water tank service instead.
Pressure that drops and needs frequent topping up means the sealed system is losing water. The leak could be at a radiator valve, a pipe joint behind a wall, a corroded fitting near the boiler, or less commonly the heat exchanger itself. A failed expansion vessel can produce the same symptom: as it loses its air charge, it can no longer absorb the pressure swings that happen as water heats and cools, and the relief valve quietly releases small amounts of water each cycle. The $189 diagnostic includes pressure testing the system to find the exact source.
Boiler repairs span a wider range than most HVAC work because the system has more components outside the unit itself. The diagnostic is $189 and covers tracing the fault through the full hydronic loop. From there, common repairs like expansion tanks, circulator pumps, zone valve actuators, and ignition components usually fall between $200 and $800 in parts and labour. Heat exchanger problems cost more and often shift the conversation toward replacement. Every number is quoted exactly before work starts, parts are OEM and CSA certified, and the warranty runs six months on parts and labour.
You need someone who works on hydronic systems regularly. General HVAC training covers combustion and gas but not piped water distribution. A boiler technician needs to read flow and pressure across a closed loop, diagnose zone valve and circulator problems, understand expansion vessel behaviour, and trace a leak through piping that may run behind walls and under floors. A company without regular hydronic experience will often replace the most obvious part and call it done. If the lockout was caused by low flow from a failing circulator, the new part solves nothing and the bill doubles. Our technicians handle hydronic systems every week.
Because late winter is month five or six of continuous operation, and that is when accumulated wear shows up. A circulator bearing that was fading since November gives out after months of daily use. A zone valve actuator that stuck intermittently in December fails outright by March. Ignition components that fire hundreds of times a day wear down on a timeline measured in cycles, not calendar dates. In Port Coquitlam, where boilers run from October into April, late-season failures are the most common pattern. A service visit in September or early October catches these wear items before they become mid-winter emergencies.
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