Quick answerBoiler repair in Spokane usually traces a cold house to one of five things: the burner not lighting, low system pressure, a failed circulator pump, a stuck zone valve or air trapped in the loop. A technician checks each one in order, and most repairs are done in one visit with parts carried on the truck.
Updated September 2026
How hydronic heat stops working
A boiler heats water and a circulator pushes it through radiators or baseboard. When any link breaks, rooms go cold, often only some of them. A boiler that fires but leaves the upstairs cold points to air or a zone valve; one that will not fire at all points to the ignition, the gas valve or a safety that has tripped.
Older cast-iron boilers in Spokane homes often run for decades, and many problems are worth fixing. We also tell you when the heat exchanger is leaking or the boiler is so oversized that replacement will pay for itself.
Boiler problems we fix
Radiator and baseboard not heating
When some rooms heat and others stay cold, the usual causes are trapped air, a zone valve that will not open, or a circulator that runs but cannot push water to the far end of the loop. We bleed air at the high points and the boiler, test each zone valve actuator and end switch, and check the pump for flow. In older homes with converted gravity systems, sludge in the piping can also block flow, and a flush restores it. We explain which of these it is before replacing anything.
Boiler pressure and leak repair
A hot water boiler should sit around 12 to 15 psi cold and a bit higher hot. Pressure that keeps dropping means a leak somewhere, often a weeping relief valve, a failed fill valve or a pinhole in old baseboard. Pressure that climbs toward 30 means the expansion tank has lost its air charge. We check the tank, replace the relief or fill valve where needed and trace any system leak, because a boiler that keeps taking in fresh water corrodes from the inside.
Circulator pump replacement
Circulators run every time the heat is on, and eventually the motor, bearings or impeller fail. Symptoms are a boiler that gets hot while rooms stay cold, a humming pump that does not turn, or a loud grinding sound. We replace the pump with a matched model, often a variable-speed circulator that uses less electricity, bleed the air from the loop and confirm flow to every zone. The old pump's flanges and isolation valves get checked too, since a seized valve turns a one-hour swap into a draindown.
Signs your boiler needs attention
How a boiler repair visit goes
- 1
Check pressure and temperature
Gauge readings tell us whether water is moving.
- 2
Test the burner
Ignition, flame sensing and gas pressure checked.
- 3
Check the pump
Flow and motor tested on each circulator.
- 4
Check the zones
Each valve and thermostat call tested.
- 5
Quote the repair
You approve the price before work starts.
- 6
Repair and purge
Part replaced, air bled from the loop.
- 7
Confirm heat
Every zone checked warm before we leave.
Older hydronic homes around Spokane
Many Hillyard homes were built between 1940 and 1969, and older houses across Spokane carry cast-iron boilers and baseboard loops that have run for decades. With about 132 frosty nights a year, a boiler here runs from fall into late spring, so small problems like a weak expansion tank or a sticking zone valve tend to surface in the first cold week of the season.
What changes the price of a boiler repair
Boiler repair questions
Why are only some of my radiators hot?
Usually trapped air, a stuck zone valve or a pump that cannot move enough water. Bleeding the high radiators sometimes fixes it; if not, we test the zones and the pump.
What pressure should my boiler be at?
Around 12 to 15 psi cold for most homes, and under 25 psi hot. Much higher or steadily dropping pressure needs service.
Can you repair old cast-iron boilers?
Often, yes. Parts for burners, controls and pumps are usually available. A cracked heat exchanger is the point where replacement makes more sense.
Do you work on steam boilers?
Yes. Steam systems need different checks, including the water level, low-water cutoff and pressure control.
Should I replace my boiler?
If it is past about 25 years, leaks from the heat exchanger or needs a major repair, a condensing boiler can cut gas use noticeably. We quote both.
Other furnaces, boilers & electric heat services we handle
Boiler Replacement
Sized, quoted and permitted.
Boiler Replacement detailsFurnace Repair
Answered 24/7, parts on the truck.
Furnace Repair in SpokaneEmergency Heating Repair
Answered 24/7, parts on the truck.
How we handle emergency heating repairRadiators cold? let us get the water moving.
Call for boiler repair in Spokane, WA at any hour.
