Call for heat

The building asks. We follow it.

Burners light

The flame comes on.

Warm air

Heat moves through the space.

Commercial Heating Services for Greater Seattle Businesses

Furnaces and building heat for restaurants, grocers, and small commercial spaces. Heat pumps, rooftops, and air conditioning each have their own page.

5-Star Rated Owners call us back.
Customer Peace Comes First You hear what failed before we repair it.
Same-Day Service Heat down. We get there.
EPA & HVAC/R Certified Section 608 Universal.
Licensed & Insured Commercial buildings across Greater Seattle.
Diagnostics First The failed part, in plain language.
Call Now: (425) 535-8990 Request Diagnostic Meet Your Technician

Heating equipment

Tell us which box is without heat. Furnace work stays on this page. The other cards go to their own pages.

This page

Commercial furnaces

Gas and electric furnaces in commercial and mixed-use buildings. Ignition, flame sensing, limits, blower, venting, and short cycling.

Link

Rooftop and packaged units

Gas heat, heat-pump heat, and electric heat on the roof. Commercial RTU repair.

This page

Split and package systems

Forced-air heat in smaller commercial buildings. We identify whether the failed section is the furnace, the heat pump, or the rooftop.

Services

Gas valve, wiring, and inducer motor inside a furnace cabinet Repair

Heating repair and diagnostics

We follow the sequence of operation: thermostat call, inducer, ignition, flame sense, limits, airflow, temperature rise, and venting. You get the failed part in plain language and the next step.

Refrigerant lines and conduit at a rooftop unit Upkeep

Heating maintenance

A pre-season check on a commercial furnace or packaged heat section covers filters, burners, the flame sensor, safeties, and airflow.

Heat pump condenser on a commercial roof Replace

Repair versus replacement

A single failed part is a repair. A cracked heat exchanger, or the same unit failing again, is a replacement conversation.

Technician checking a rooftop unit with gauges No heat

Urgent no-heat

Call with the building type, whether the unit is a furnace, rooftop, or heat pump, and any flashes on the control board. Same-day scheduling when capacity allows. This is not a 24-hour promise.

Buildings we serve

  • Restaurants and grocers. Dining-room and sales-floor heat. Walk-ins and the cooking line are separate services.
  • Small offices and retail. Single-zone furnaces, splits, and small packaged units.
  • Light industrial and back-of-house. Heating assets on the job.
  • Not this page. Homes. High-rise boiler plants. Crane changeouts. Ovens, ranges, and fryers belong on commercial kitchen equipment repair.

How a heating call goes

1. Call City, building, and which box is without heat.
2. Diagnosis Combustion, electrical, airflow, and controls. The failed part is named before a repair price.
3. Options Repair now, a parts return, or a handoff when the asset is a heat pump, RTU, or AC.
4. After the repair A full heat cycle, then a walk-through of what failed.

Commercial heating symptoms

No heat in the occupied space

The furnace never fires, or the rooftop heat section never fires.

Air moves and stays cold

Ignition or flame sensor on a furnace. On a heat pump, start with heat pump not heating.

Short cycling

Limits, a loaded filter, airflow, or a unit that is too large for the zone.

Starts, then drops out

Flame sensor, pressure switch, flue restriction, or rollout.

Bang at startup

Delayed ignition. Gas collects before the burners light. Book a diagnostic.

Yellow or unsteady flame

Combustion or venting. Shut the unit down and call.

One zone cold

Staging, a damper, or a second unit. Often a rooftop or split, not the only furnace.

Flashing code on the board

Count the flashes before the visit so the truck can carry the likely part.

Greater Seattle heating conditions

Damp heating season

Rooftop cabinets sit in wet weather. Corrosion and moisture show up on equipment that lives outside.

Light-commercial furnaces are still in these buildings

A lot of small restaurants and shops are not a boiler plant. That is why this hub sits beside the rooftop and heat pump pages.

Rooftop heat sections

Ignition and airflow fail on roofs, not only compressors. Those jobs are on the RTU repair page.

Brands

A/C Dr. Naz is a Daikin Pro. We service Daikin and other major commercial makes and models, including Carrier, Trane, Lennox, York, and Rheem.

Service area

Greater Seattle and the Puget Sound, from the Marysville office and Seattle Northlake.

City and service lists are on the service directory.

FAQ

Do you service homes?

Commercial buildings only.

Is it a furnace, a heat pump, or a rooftop?

Dispatch asks which cabinet is down. Furnaces stay here. Heat pumps, RTUs, and AC use their own pages.

Do you install heating systems?

Diagnostics and repair come first. Replacement is discussed when repair is the wrong next step.

Which brands?

Daikin, Carrier, Trane, Lennox, York, and Rheem. A/C Dr. Naz is a Daikin Pro.

How fast can you get there?

When capacity allows, with priority for heat that is down during business. No guaranteed arrival window.

What should we check before calling?

Filter, breaker, thermostat set to heat, and any flashing code. Then call (425) 535-8990.

Is a cracked heat exchanger a repair?

No. That becomes a replacement quote or a referral.

Do you cover Bellevue and Seattle?

Yes, from this Greater Seattle hub.

Commercial heating diagnostics in Greater Seattle.

Call (425) 535-8990

EPA Section 608 Universal and HVAC/R certified. License CC ACDRNDN753PG. Marysville office first, Seattle Northlake second.