Quick answerCommercial boiler service in Spokane covers repair and maintenance of hot water and steam boilers in apartment buildings, churches, schools and offices: burners, controls, low-water cutoffs, pumps, steam traps and zone controls. Calls are answered 24/7, and we price repairs in writing before the work starts.
Updated September 2026
Keeping large boiler systems running
Commercial boilers carry more load, more safety controls and more distribution than a house system. A single failure, a burner that will not light, a tripped low-water cutoff, a failed circulator, can leave a whole building cold.
Older buildings often run on steam, with traps, vents and condensate returns that need regular attention, while newer ones use hot water loops with multiple pumps and zones. We service both, from emergency no-heat calls to annual maintenance that catches problems before the heating season.
Commercial boiler work we do
No-heat and emergency repair
When a building loses heat, we work through the chain in order. Power and controls come first, then the burner and its flame safeguard and the gas pressure. On steam boilers we check the low-water cutoff and water level; on hot water systems, pressure and flow. Common failures include ignition and flame sensing problems, failed pumps, sticking low-water cutoffs and control board faults. We carry the common parts and give the building manager a written price before replacing anything. Before we leave, we confirm heat across the building.
Steam systems
Steam heat depends on water level, pressure control and the trap and vent system that lets steam reach every radiator. Failed steam traps leak steam into the return and waste fuel, clogged vents leave radiators cold, and a dirty sight glass hides low water. We test and replace traps and vents and check the low-water cutoff and pressure controls. When the boiler needs it, we skim and blow it down, and we look at the condensate return and receiver. Balancing a steam building so the far radiators heat as fast as the near ones is often a matter of the right main vents, not more pressure.
Hot water boilers and maintenance
Hot water systems in larger buildings run multiple circulators, zone valves and often a primary-secondary loop. Annual maintenance covers combustion testing, burner and ignition service and safety control checks. We also check pumps and expansion tanks and look at water treatment. Catching a weak pump or a failing control in the fall is far cheaper than an emergency call in January. We leave a written report of what we tested and found, so the owner or manager has a record for the building file and for planning replacements before they turn into emergencies.
Signs a commercial boiler needs service
How a commercial boiler visit goes
- 1
Talk to the manager
What the building is doing and since when.
- 2
Check controls
Power, thermostats and building controls.
- 3
Check the burner
Ignition, flame and gas pressure.
- 4
Check safeties
Low-water cutoff, pressure and limits.
- 5
Quote the repair
Written price before work starts.
- 6
Repair
Part replaced and system restarted.
- 7
Confirm heat
Zones or radiators checked across the building.
Older buildings in a long heating season
In the City of Spokane, boiler work in commercial buildings and apartment buildings of six or more units needs its own boiler permit application, separate from the residential mechanical permit. Older blocks with steam and hot water heat are part of the city, and a long heating season means fall maintenance and fast no-heat response both matter. We handle the permit step as part of the job.
What changes the price of commercial boiler work
Building without heat? call now.
Call (509) 404-0016Commercial boiler questions
Do you work on steam boilers in older buildings?
Yes, including steam traps, vents, low-water cutoffs, pressure controls and condensate returns.
Can you come after hours for a building with no heat?
Yes. The line is answered around the clock, and no-heat calls for occupied buildings are handled as emergencies.
Do you offer annual boiler maintenance?
Yes. Combustion testing, safety control checks, burner service and a look at pumps, tanks and traps before the heating season.
Why are some radiators cold in a steam building?
Usually failed air vents, trapped condensate or steam traps that are stuck. We test them radiator by radiator.
Who do you work with on site?
Usually the building owner, manager or maintenance staff. We give written findings and prices to whoever authorizes the work.
Other commercial services we handle
Commercial HVAC Installation
Sized, quoted and permitted.
Commercial HVAC Installation detailsCommercial HVAC Repair
Answered 24/7, parts on the truck.
Commercial HVAC Repair in SpokaneCommercial HVAC Maintenance
Seasonal service, fewer breakdowns.
How we handle commercial hvac maintenanceBuilding cold? we will get the boiler going.
Call any hour for commercial boiler service in Spokane, WA.
