Heating Services in Northwest Washington
Boilers · Furnaces · Commercial HVAC · Heaters · Thermostats. Licensed technicians keeping your home and business warm across Bellingham, Mount Vernon & Anacortes.
Your Heat Goes Out in a Northwest Winter, Every Minute Counts
When temperatures drop into the 20s and 30s across Whatcom and Skagit Counties, a failed heating system isn't an inconvenience, it's a crisis. Pipes freeze. Families lose sleep. Elderly and young children face real health risks. Whether your furnace won't ignite, your boiler is leaking, your thermostat is unresponsive, or your commercial HVAC system has shut down an entire building, you need a qualified heating professional who shows up fast, diagnoses accurately, and restores heat the same day.
LaVergne's provides complete heating services including boiler repair, installation, and maintenance; furnace repair, replacement, and tune ups; commercial HVAC service; space heater and wall heater work; and thermostat installation, repair, and smart upgrades across Bellingham, Mount Vernon, Anacortes, and surrounding areas.
What to Look for in a Heating Professional
Heating systems involve gas piping, electrical controls, combustion venting, pressurized boiler vessels, and complex mechanical components. A bad repair or install creates carbon monoxide hazards, gas leaks, fire risk, and system failures that leave you without heat when you need it most. Here's what separates a qualified heating pro from a liability.
Why LaVergne's?
We check every box. Heating specialists since 1951.
- Licensed & Insured (#LAVERPH798NZ)
- 75+ Years of Heating Work
- Boilers, Furnaces & HVAC
- Upfront, Honest Pricing Always
- 5 Star Customer Reviews
- 24/7 Emergency Heat Service
Complete Heating Services
Six core heating service areas covering every system type, from residential boilers to commercial HVAC, handled by licensed professionals.
Boiler Services
Boiler repair, replacement, and installation for hydronic heating systems. Circulator pump repair, expansion tank service, zone valve troubleshooting, pressure relief, radiator bleeding, and annual boiler tune ups.
Boiler Help →Furnace Services
Gas and electric furnace repair, replacement, and installation. Igniter and flame sensor repair, blower motor service, heat exchanger inspection, filter replacement, gas valve diagnosis, and seasonal tune ups.
Furnace Help →Commercial HVAC
Rooftop unit service, commercial boiler work, make up air systems, exhaust fan repair, building automation troubleshooting, planned maintenance programs, and emergency commercial heating response.
Commercial →Heater Services
Wall heater repair and installation, baseboard heater service, radiant floor heating, space heater hookup, garage and shop heater installation, and gas line connections for all heating appliances.
Heater Help →Thermostat Services
Thermostat replacement, smart thermostat installation (Nest, Ecobee, Honeywell), wiring diagnosis, zone control setup, programmable thermostat programming, and wireless thermostat configuration.
Thermostat →Heating Maintenance
Annual heating system tune ups for boilers, furnaces, and heat pumps. Combustion analysis, safety inspection, filter replacement, efficiency testing, and preventive maintenance contracts for homes and businesses.
Tune Up →No Heat Right Now?
24/7 emergency heating repair across Bellingham, Mount Vernon, Anacortes and all surrounding areas.
Most Common Heating Problems We Fix
Northwest Washington winters push heating systems to their limits. Cold snaps, aging equipment, deferred maintenance, and worn components all contribute to heating failures at the worst possible time. Here are the four most common problems we solve across the region.
Our trucks carry igniters, flame sensors, thermocouples, blower capacitors, zone valves, circulator pumps, thermostats, and filters so the majority of heating repairs are completed in a single visit.
Furnace Won't Ignite
Failed igniter, dirty flame sensor, faulty gas valve, or tripped safety switch. We diagnose the exact cause and restore heat fast, usually with parts already on the truck.
Fix It →Boiler Losing Pressure
Leaking expansion tank, failed pressure relief valve, air in the system, or a leak in the hydronic loop. We find the source, repair it, repressurize, and bleed the system.
Diagnose →Uneven or No Heat
Failed zone valve, stuck circulator pump, thermostat wiring issue, clogged filter, or ductwork problem. We trace the issue through the system and restore balanced heat.
Balance →Thermostat Not Responding
Dead batteries, blown fuse on the control board, wiring failure, or incompatible thermostat. We diagnose the controls, repair or replace, and verify the system cycles properly.
Resolve →
Why Professional Heating Service Matters
Every heating system in your home or business burns fuel, generates combustion gases, and operates under pressure, temperature, and electrical controls that must work together safely. A cracked heat exchanger leaks carbon monoxide into your living space. A bad gas connection creates an explosion risk. An improperly wired thermostat short cycles the system and destroys components. A neglected boiler builds dangerous pressure.
Licensed heating professionals perform combustion analysis, test gas connections for leaks, inspect heat exchangers for cracks, verify proper venting and draft, calibrate controls, and ensure every safety device functions correctly, protecting your family from the invisible dangers that untrained work creates.
CO Safety
Combustion tested every visit
Gas Safety
Every connection leak checked
System Efficiency
Tuned for peak performance
Heating Service FAQs
Common heating questions answered by our licensed experts serving Whatcom and Skagit Counties.
How much does a furnace repair cost?
Most furnace repairs run $150 to $600 depending on the part and labor involved. An igniter or flame sensor swap is on the lower end, while a blower motor or control board runs higher. We always provide an upfront quote before starting any work.
How much does a boiler repair cost?
Boiler repairs typically run $200 to $800 depending on the component. Circulator pump replacement, zone valve swaps, and expansion tank service are common. Complex repairs involving the heat exchanger or controls run higher. We quote upfront every time.
How often should I service my furnace?
Annual tune ups are recommended before every heating season. A professional tune up includes combustion analysis, heat exchanger inspection, filter replacement, gas connection check, electrical testing, and safety device verification.
How long does a furnace last?
A well maintained gas furnace lasts 15 to 20 years. A boiler can last 20 to 30 years with proper maintenance. After those milestones, efficiency drops, parts become harder to source, and repair costs often exceed the value of the aging unit.
Can you install a smart thermostat?
Yes. We install and configure Nest, Ecobee, Honeywell, and other smart thermostats. We verify wiring compatibility, install the C wire if needed, connect to Wi Fi, configure zones and schedules, and test the system for proper cycling.
Do you service commercial heating systems?
Yes. We service commercial rooftop units, commercial boilers, make up air systems, unit heaters, exhaust fans, and building automation controls. We offer planned maintenance programs and 24/7 emergency commercial heating response.
Why does my furnace keep short cycling?
Short cycling is usually caused by a dirty flame sensor, clogged filter, overheating from restricted airflow, a faulty thermostat, or a cracked heat exchanger triggering the safety limit. We diagnose the root cause and fix it permanently.
Should I repair or replace my heating system?
If your system is under 15 years old and the repair cost is less than half the replacement cost, repair usually makes sense. If the system is older, requires frequent repairs, or has a cracked heat exchanger, replacement is the safer and more cost effective choice.
What areas do you serve?
We provide heating services across all of Whatcom and Skagit Counties including Bellingham, Mount Vernon, Anacortes, Burlington, Sedro Woolley, Ferndale, Lynden, and surrounding areas.