Radiators or baseboards stay cold while the boiler runs
Heating · Greater Seattle
Boiler Repair — Greater Seattle
Boiler repair typically runs $250–$1,500 depending on the part and boiler type. SPS Pro Services diagnoses and repairs gas, electric, and oil boilers throughout King and Snohomish counties, including older homes with cast-iron radiators common in Seattle and Bellevue neighborhoods.
Licensed, bonded & insured in WashingtonMon–Fri 8am–6pm · 24/7 emergencies
Boiler repair covers diagnosing no-heat calls, leaking valves, pilot or ignition failures, circulator pump replacement, and pressure or noise issues on hot water and steam systems. Many Western Washington homes built before 1990 still run original boilers, and cold, wet winters push older units past their limit. If your boiler is cycling oddly, leaking, or not heating rooms evenly, a repair visit usually resolves it faster and cheaper than a full replacement.
Symptoms we see daily
Signs you need boiler repair
Banging, gurgling, or kettling noises from the unit
Water pooling near the base of the boiler
Pilot light won't stay lit or ignition keeps failing
Pressure gauge reads unusually high or low
No surprises
How a boiler repair visit works
1
Diagnostic visit
A technician inspects the boiler, checks pressure, ignition, and controls, and pinpoints the failure before quoting any work.
2
Written estimate
You get a clear price range for parts and labor before repairs start, based on the specific issue found.
3
Repair or part replacement
Common fixes include circulator pumps, ignitors, thermocouples, expansion tanks, and valve seals, done same-visit when parts are on hand.
4
System test
The boiler is run through a full heating cycle to confirm proper pressure, temperature rise, and even heat distribution.
5
Follow-up notes
You get a summary of what was repaired and any maintenance recommendations to avoid repeat calls.
Why quotes range from $250 to $1,500
These factors decide where your job lands in the range — and we walk you through each one on the written quote.
- Boiler type and age, since parts for older cast-iron or oil-fired units cost more and take longer to source
- Whether the issue is electrical (ignitor, thermostat) or mechanical (pump, valve, heat exchanger)
- Access difficulty in older Seattle-area basements and crawlspaces common in pre-1980 housing stock
- Emergency or after-hours timing versus a scheduled weekday appointment
Flat-rate pricing
Boiler Repair — what it costs
Conservative ranges for the Seattle metro. Your written quote is exact before work begins.
| Job | Typical price |
|---|---|
| Diagnostic / service callCredited toward the work we do | $250 |
| Minor boiler repairSingle small component or adjustment | $250–$670 |
| Typical boiler repairThe most common jobs we see | $670–$1,080 |
| Major boiler repairBig-ticket parts and labor | $1,080–$1,500 |
Prices reviewed by Sergei Petrov · July 2026. Parts availability can shift ranges — the quote you sign is final.
24/7 Emergency Line
Emergency dispatchNo heat at 11pm? We pick up.
Office hours are Mon–Fri, but the emergency line never closes. Call any hour and we dispatch a licensed tech across Greater Seattle.
Straight answers
Boiler Repair questions we hear most
How much does boiler repair cost in the Seattle area?
Most repairs land between $250 and $1,500. Simple fixes like an ignitor or thermocouple sit at the lower end, while circulator pump or heat exchanger repairs on older systems run higher. You'll get a firm estimate after the diagnostic visit.
Should I repair or replace an old boiler?
If the boiler is under 15 years old and the repair is under half the cost of a new unit, repair usually makes sense. Beyond that, especially with recurring leaks or corrosion, replacement often saves money over the next few winters.
Do you work on both gas and oil boilers?
Yes, SPS Pro Services repairs gas, electric, and oil-fired boilers, including older cast-iron radiator systems common in homes built before 1980 across King and Snohomish counties.
How fast can someone come out for a no-heat call?
Same-week appointments are typical, and we prioritize no-heat calls during cold spells. Call (206) 427-8907 to check current availability for your area.
Founder & Lead HVAC Technician, SPS Pro Services
EPA Section 608 UniversalNATE Core Certified14+ years in the trade
Reviews the pricing and service guidance on this page against SPS Pro Services's actual job records across King and Snohomish counties.
Prices reviewed July 2026
Need boiler repair? Get a straight answer today.
Cold radiators or a leaking boiler? Call (206) 427-8907 to schedule a diagnostic visit anywhere in King or Snohomish counties.