Boiler Services in Northwest Washington
Repair · Replacement · Installation · Maintenance. Licensed boiler specialists keeping hydronic heating systems running across Bellingham, Mount Vernon & Anacortes.
Your Boiler Keeps Your Entire Home Warm. We Keep Your Boiler Running.
Boilers are the backbone of hydronic heating systems across the Pacific Northwest. They heat water that circulates through radiators, baseboard heaters, and radiant floor loops to warm every room in your home. When a boiler fails, there's no backup. No heat to the radiators, no warmth in the floors, and in freezing weather, the risk of frozen pipes becomes very real very fast.
LaVergne's provides complete boiler services including boiler repair for all makes and models, full boiler replacement and removal, new boiler installation for remodels and new construction, and annual boiler maintenance and tune ups across Bellingham, Mount Vernon, Anacortes, and all of Whatcom and Skagit Counties.
What to Look for in a Boiler Specialist
Boilers are pressurized vessels that heat water using gas combustion or electricity and circulate it through a closed loop of pipes, radiators, and valves. A bad repair or install creates carbon monoxide hazards, dangerous pressure buildup, water damage from leaking connections, and system failures that leave your home freezing. Here's what to look for.
Why LaVergne's?
We check every box. Boiler specialists since 1951.
- Licensed & Insured (#LAVERPH798NZ)
- 75+ Years of Boiler Work
- All Boiler Types & Brands
- Upfront, Honest Pricing Always
- 5 Star Customer Reviews
- 24/7 Emergency Boiler Service
Boiler Repair, Replacement, Installation & Maintenance
Six core boiler service areas covering every boiler type, component, and situation, handled start to finish by licensed boiler specialists.
Boiler Repair
Circulator pump replacement, zone valve repair, expansion tank swap, pressure relief valve service, ignition and pilot repair, aquastat calibration, leak diagnosis, air bleeding, and low pressure troubleshooting on all boiler makes and models.
Fix Now →Boiler Replacement
Old boiler drained, disconnected, and removed. New boiler positioned, gas and water connections made, expansion tank installed, zones reconnected, system pressurized, air bled, combustion tested, and full heat verified to every zone.
Replace →Boiler Installation
New boiler installation for new construction, additions, and conversions. System design, gas line sizing, supply and return piping, zone valve wiring, circulator pump setup, expansion tank, venting, and permit coordination.
Install →Boiler Maintenance
Annual boiler tune up including combustion analysis, pressure and temperature check, expansion tank inspection, safety relief valve test, circulator pump check, system flush, air bleeding, and efficiency optimization.
Tune Up →Zone & Circulator Repair
Failed zone valves preventing heat to specific rooms, stuck or noisy circulator pumps, thermostat wiring to zone controllers, and balancing flow rates across multiple heating zones for even comfort throughout the home.
Balance →Radiant & Baseboard
Radiant floor heating repair and installation, baseboard heater service, radiator bleeding and balancing, hydronic loop repair, and adding new heating zones to existing boiler systems for additions and remodels.
Radiant →Boiler Down? No Heat?
24/7 emergency boiler repair across Bellingham, Mount Vernon, Anacortes and all surrounding areas.
Most Common Boiler Problems We Fix
Boilers are reliable systems, but they have pressurized water, combustion components, mechanical pumps, and electrical controls that all wear over time. Northwest winters push these systems hard, and deferred maintenance accelerates failure. Here are the four boiler problems we fix most often.
Our trucks carry circulator pumps, zone valves, expansion tanks, pressure relief valves, igniters, aquastats, and bleeding tools so most boiler repairs are completed in a single visit.
Boiler Losing Pressure
Failed expansion tank, leaking pressure relief valve, air trapped in the system, or a leak in the hydronic loop. We find the source, repair, repressurize, and bleed the system.
Diagnose →No Heat to One Zone
Failed zone valve, stuck circulator pump, thermostat wiring issue, or air lock in the loop. We trace the problem through the zone and restore heat to the affected rooms.
Fix It →Boiler Won't Ignite
Failed igniter, dirty flame sensor, faulty gas valve, or tripped safety control. We diagnose the ignition failure and restore heat fast with parts stocked on the truck.
Restore →Banging, Gurgling, Kettling
Air in the system, scale buildup on the heat exchanger, or a failing circulator pump. We bleed, flush, descale, or replace components to eliminate the noise and restore quiet operation.
Resolve →
Why Professional Boiler Service Matters
A boiler is a pressurized vessel that heats water using gas combustion or electricity and circulates it through a closed loop under pressure. Improper work creates carbon monoxide exposure, dangerous pressure buildup, water damage, gas leaks, and complete system failure from air locks or incorrect pressurization.
Licensed boiler specialists perform combustion analysis, pressure test every connection, verify safety relief valves, inspect heat exchangers, calibrate aquastats, bleed air from every zone, and ensure the entire hydronic loop operates safely and efficiently.
Pressure Safety
Relief valves tested every visit
CO Safety
Combustion analysis on every job
System Efficiency
Tuned for peak heat output
Boiler Service FAQs
Common boiler questions answered by our licensed specialists serving Whatcom and Skagit Counties.
How much does a boiler repair cost?
Most boiler repairs run $200 to $800. Circulator pump swaps, zone valve replacements, and expansion tank service are on the lower end. Heat exchanger or control board work runs higher. We always quote upfront before starting.
How much does a boiler replacement cost?
A residential boiler replacement typically runs $4,000 to $10,000 depending on boiler type, BTU rating, number of zones, and piping complexity. High efficiency condensing boilers cost more upfront but save significantly on fuel.
How long does a boiler last?
A well maintained boiler typically lasts 20 to 30 years. Cast iron boilers can last even longer. After 25 years, efficiency drops, parts become scarce, and heat exchanger failure risk increases. Annual maintenance extends lifespan significantly.
How often should I service my boiler?
Annual maintenance is recommended before every heating season. A tune up includes combustion analysis, pressure check, expansion tank inspection, safety relief valve test, circulator check, air bleeding, and efficiency optimization.
Why is my boiler losing pressure?
Common causes include a failed expansion tank, a leaking pressure relief valve, air trapped in the system, or a small leak in the hydronic loop. We pressure test, find the source, repair it, and repressurize.
Why is my boiler making banging noises?
Banging, gurgling, or kettling sounds are caused by air in the system, scale buildup on the heat exchanger, or a failing circulator pump. We bleed, flush or descale as needed, and replace worn components.
Should I repair or replace my boiler?
If your boiler is under 20 years old and the repair is a pump, valve, or tank, repair makes sense. If it is over 25, has a cracked heat exchanger, or requires frequent repairs, replacement is the safer and more efficient choice.
What is a combi boiler?
A combi boiler provides both space heating and domestic hot water from one unit, eliminating the need for a separate water heater. They are compact, efficient, and ideal for smaller homes or where space is limited.
What areas do you serve?
We service boilers across all of Whatcom and Skagit Counties including Bellingham, Mount Vernon, Anacortes, Burlington, Sedro Woolley, Ferndale, Lynden, and surrounding areas.