Commercial HVAC service and repair, Western Washington
When a rooftop unit quits on a hot afternoon or a boiler locks out on a cold morning, you need a tech who’s seen it before. Our crews work from Marysville to Roy, so someone’s usually close.
What we fix
We service and repair almost every kind of heating, cooling, ventilation and refrigeration equipment in commercial buildings. If you’ve got an odd one, call anyway. If it’s not ours to fix, we’ll help you find who is.
Heating & cooling equipment
- Packaged rooftop units (RTUs)
- Split systems & heat pumps
- VRF / VRV systems
- Ductless & mini-splits
- PTACs & PTHPs
- Water-source heat pumps (WSHP)
- Fan coils
- Air handlers (AHUs)
- Furnaces & unit heaters
- Electric heat & duct heaters
Ventilation & air
- Make-up air units (MUAs)
- Kitchen exhaust fans & hoods
- Exhaust & supply fans
- ERVs, HRVs & DOAS
- Economizers & dampers
- Ductwork, grilles & diffusers
- Humidifiers & dehumidifiers
- Filtration & air cleaners
Heating plants & hydronics
- Boilers
- Chillers
- Cooling towers
- Pumps & circulators
- Hydronic piping, valves & expansion tanks
- Radiant heating
- Heat exchangers
Refrigeration
- Walk-in coolers & freezers
- Reach-ins & prep tables
- Bar & beer coolers
- Ice machines
- Condensing units & evaporators
- Display cases
Controls & electrical
- Thermostats & zoning
- Building automation (BAS / BMS)
- Variable frequency drives (VFDs)
- Sensors, actuators & control valves
- Contactors, boards & control wiring
- Smoke control & fan interlocks
Water heating & gas
- Water heaters, tank & tankless
- Heat pump water heaters
- Recirculation pumps
- Gas piping
- Condensate pumps & drains
The short version
What does commercial HVAC service cover?
Commercial HVAC service is fixing heating, cooling and ventilation equipment when it stops working right: rooftop units, splits, heat pumps, VRF, boilers, chillers, make-up air, exhaust and controls. A good service call finds the real cause, not just the part that failed.
Why it matters
- A fast, correct diagnosis keeps tenants comfortable and kitchens open
- Fixing the cause (bad power, a failing contactor, a dirty coil) keeps the same call from coming back
- You get the price before we start, so there are no surprises on the invoice
- A written record of what we found helps you plan repairs and replacements
Who it’s for
- Property managers and owners of office, retail and multifamily buildings
- Restaurants, breweries and bars
- Schools, churches and community buildings
- General contractors who need a service partner after turnover
What we can do for you
- Diagnose no-heat, no-cool, noise, leaks and lockouts
- Repair compressors, motors, contactors, boards, valves and wiring
- Refrigerant leak searches and repairs
- Chiller and boiler troubleshooting
- Exhaust fan, make-up air and hood fan repairs
- Controls, thermostat and sensor fixes
- Air balancing for hot and cold room complaints
Work we’ve done
- Replaced burned contactors and wiring after building power problems took out a unit
- Tracked down breaker trips on a restaurant kitchen exhaust fan
- Replaced failed electronic expansion valves, wiring and a module on a downtown high-rise chiller
- Rebuilt a domestic hot water recirculation pump in a Seattle apartment building
- Found an AC circuit that had been tapped for an EV charger and got the unit running again
Real Omni jobs. We don’t name customers.
What we see most
No heat or no cooling
Failed igniters, bad capacitors and contactors, tripped limits, frozen coils. We find the root cause, not just the part that quit.
Rooftop unit short-cycling
Dirty coils, bad sensors, low charge or a controls problem. Short-cycling wears out compressors and runs up the power bill.
Loud or failing blowers
Worn bearings, slipping belts and dying motors. We carry common motors and belts and can source the rest fast.
Exhaust and make-up air problems
Kitchen hoods that won’t pull, fans that quit, and make-up air that doesn’t keep up. Common in restaurants and breweries.
Water where it shouldn’t be
Plugged condensate drains, cracked pans and failed pumps. Caught early, it’s a cheap fix.
High energy bills
Bad economizers, broken schedules and failed sensors are some of the biggest energy wasters we find.
How a service call goes
- You call or send a request. Tell us the equipment, the symptoms, and how bad it is.
- We get a tech out. Most diagnostics are done in 30 minutes or less once we’re on site.
- You get a straight answer. What’s wrong, what it takes to fix it, and what it costs before we touch it.
- We fix it right. We stock common parts and source OEM and universal parts for nearly every manufacturer.
Who calls us
- Property managers and building owners
- Restaurants, breweries and bars
- Offices, retail and multifamily
- Cold storage and data/IT rooms
- General contractors and developers
Our work
How it works
Call or send a request
Tell us the equipment, what it’s doing, and how urgent it is.
We come look
A field-experienced tech or estimator sees it in person. Most diagnostics take 30 minutes or less.
Straight price first
You get what’s wrong, what it takes, and what it costs before we start.
Done right, written up
We finish clean, test it, and leave a written record of what we did.
What our clients say
Common questions
How fast can you get someone out?
It depends on where you are and what’s on the board that day. Our techs live across the region from Marysville to Roy, which keeps drive times down. Call 425-906-7700 and we’ll give you a real arrival window.
Do you work on all brands?
Yes. We work on equipment from every major manufacturer and source both OEM and universal replacement parts.
Do I get a price before the repair?
Yes. After diagnosis we tell you what’s wrong and what it’ll cost. Nothing gets done without your OK.
Can you take over maintenance after the repair?
Yes. Most of our maintenance customers started with a service call. See our maintenance agreements.
Are you an AC company or a heating company?
Both. We’re a full mechanical contractor: air conditioning, heating, ventilation, refrigeration and controls, for commercial buildings and homes. If it moves air, heat or refrigerant, we work on it.
Do you do emergency HVAC repair?
Yes. Call 425-906-7700 and tell us what’s going on. We get back to you as fast as we can and get a tech out as soon as the board allows.
Do you do commercial air conditioning repair?
Yes. Air conditioning repair is a big part of what our service techs do: rooftop units, split systems, heat pumps, VRF, ductless and water source heat pumps. Call 425-906-7700 or send a service request and we get back to you as fast as we can.
Do you do air balancing?
Yes. We measure and adjust airflow at the diffusers, grilles and dampers so each space gets the air it was designed for. We balance after replacements and tenant improvements, and we chase down hot and cold room complaints. If your spec calls for a certified third-party TAB report, we’ll tell you up front.
Where we do this work
Related services
Ready when you are
Tell us what’s going on. We get back to you as fast as we can.
Licensed, bonded & insured · WA Contractor License OMNIMMI779PR · WA Electrical Contractor (HVAC/Refrigeration) EC OMNIMMI740OS · Commercial financing available