Commercial Furnace & Boiler Repair in Surrey

Commercial furnace repair, boiler service, and gas-fired unit heater maintenance in Surrey. Our licensed gas technicians respond fast to heating failures so your building stays safe and warm through the Lower Mainland winter.

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A commercial heating failure in a Surrey winter isn't just uncomfortable — it can freeze pipes, trigger fire suppression faults, and force a building evacuation. Our licensed gas technicians are on call around the clock because heating emergencies don't respect business hours. We carry the parts that fail most often so most repairs are completed in one trip.

What We Handle

Commercial furnace repair and replacement
High-efficiency and standard-efficiency boiler service and repair
Gas-fired unit heater repair and annual service
Heat exchanger inspection and carbon monoxide testing
Hydronic heating system balancing and zone valve replacement
Gas line and gas train service for commercial heating equipment
Infrared radiant heater repair and annual service
Heating system controls, thermostat, and BAS integration

Signs You Need Us Now

These are the warning signs our technicians see most often in the field. If any of these sound familiar, don't wait for the full failure.

High-limit switch is tripping repeatedly (overheating fault)
Furnace fires but shuts down before the space reaches setpoint
You smell gas near the furnace or boiler room
Boiler pressure is dropping between cycles (system leak)
Heat distribution is uneven across zones
Pilot or ignitor is failing to light on first attempt

Equipment & Brands We Work With

We service and supply Carrier, Lennox, York, Reznor, Modine, Viessmann, Lochinvar, and Weil-McLain commercial heating equipment. Our vans stock common gas valves, ignitors, heat exchangers, expansion tanks, zone valves, and boiler controls. We're licensed by BCSA for gas work on all pressure classes.

How We Work

Emergency or planned, every heating job starts with a safety check before any repair work begins. We test for CO, check gas pressure, and verify venting is clear. Repair options and pricing are presented before we start wrenching. For boiler replacements, we manage the permit, gas inspection, and commissioning sign-off.

Surrey Commercial HVAC Services doesn't sub out to random crews. Our own licensed technicians handle every step. When the job is done, you get a complete handover package: equipment manuals, warranty registration, service records, and a direct line to your account technician.

Common Questions

My commercial furnace is tripping on limit. What's wrong?

A high-limit trip is usually caused by restricted airflow — dirty filter, blocked supply register, or failed blower motor. It can also indicate a heat exchanger crack, which requires immediate attention.

How long do commercial boilers last?

A well-maintained cast-iron sectional boiler can last 30+ years. High-efficiency condensing boilers typically run 15–20 years. Annual service and proper water treatment are the biggest factors in boiler life.

Do you service gas-fired infrared heaters?

Yes. Tube-style and luminous infrared heaters are common in garages, loading docks, and automotive shops. We service gas supply, burner, and reflector systems on all major brands.

Do you pull the gas permits for commercial heating work?

Yes. All gas work requires a BCSA permit and inspection. We pull the permit, do the work, and arrange the inspection. You get a copy of the signed-off inspection record at project close.