ServicesCommercial HVAC
Commercial HVAC in Latah
When the heat or cooling quits at your business, customers and staff notice fast. We repair, replace and service rooftop units and split systems for small commercial buildings, explain your equipment options plainly and put every quote in writing before work begins.

Heating and cooling that keeps your doors open
Our commercial work covers the equipment most small businesses run on: packaged rooftop units, gas-fired unit heaters in shops and garages, and split systems serving offices and storefronts. We track down what failed and fix it properly. Then we give you a straight answer on whether the unit deserves more repair money or is ready to be retired.
We spend real time on the choices in front of you. A replacement rooftop unit can come with copper-tube or aluminum microchannel coils, an aluminized or stainless steel heat exchanger, and a factory coating or not. Each has trade-offs in price, repair options and how it holds up to dry summer dust and long winters, and we walk you through them before you decide.
HVAC Latah is licensed and bonded in Washington, and we're Trane Certified, which matters when you're weighing Trane commercial equipment or need it serviced to the maker's standards.
What our commercial service covers
Rooftop unit diagnosis and repair
We test compressors, fan motors, contactors, gas valves and controls, then show you what we found. Your diagnostic fee is credited toward the repair if you go ahead.
Equipment replacement
We size the new unit to your space and use, match it to your existing curb where we can, and handle the crane lift and startup. Estimates are free on installations and replacements.
Coil and heat exchanger choices explained
Copper-tube coils are easier to patch in the field, while microchannel aluminum coils are lighter and resist some corrosion but are usually replaced rather than repaired. Stainless heat exchangers cost more up front and tolerate the condensation that comes with high-efficiency gas heat.
Shop and warehouse heaters
We service and replace gas unit heaters and radiant tube heaters, including burners, ignition, venting checks and thermostats.
Seasonal service visits
Coil cleaning, filter changes, belt checks, gas pressure and combustion testing, and economizer checks before the heating and cooling seasons.
Around-the-clock repair
Commercial equipment doesn't fail on a schedule. Our 24/7 emergency HVAC repair carries no emergency or after-hours fees.
Signs your building's system needs attention
Hot and cold zones
One end of the shop is cold while the office bakes. That often points to a failing economizer, a stuck damper actuator or a unit that's short of capacity.
Rising utility bills
If your gas or power use climbs without a change in hours, dirty coils, slipping belts or a weak compressor may be making the equipment work harder.
Frequent resets and lockouts
A rooftop unit that needs its breaker flipped or its ignition reset more than once in a season is telling you something is wearing out.
Corroded cabinet or coils
Flaking fins, rusted panels or white powder on aluminum coils mean the unit is losing efficiency and may be near the end of its life.
Burning or musty smells
A burning odor at first heat-up can be dust, but if it lingers or smells electrical, shut the unit down and have it checked.
How a commercial job runs
- 1
Your call
Tell us about your building, the equipment and what's going wrong. We set a visit that works around your business hours when the job allows.
- 2
On-site inspection
We check the unit on the roof or in the mechanical space, take photos of what we find and talk you through repair versus replacement.
- 3
Everything on paper first
Nothing starts until you have our quote in writing. It lists the equipment, the material options we discussed and the labor, so the final invoice matches what you approved.
- 4
The work and the startup
We protect your floors and roof surface, complete the repair or install, then run the system through heating and cooling and verify gas pressure, airflow and controls. We clean up and show you how to read the thermostat or controls.
What moves the cost of commercial HVAC work
Commercial jobs vary more than residential ones because buildings, equipment and access vary so much. We price from what we actually see on site and put it in writing. These are the main drivers.
- Unit size and type
- Tonnage, whether the unit is gas-electric or a heat pump, and the efficiency rating all move the price of equipment and parts.
- Material choices
- Stainless heat exchangers, coated coils and upgraded economizers add cost up front but can lengthen service life. We'll tell you when an upgrade earns its keep and when it doesn't.
- Roof access and lifting
- A unit you can reach by ladder costs less to service than one needing a lift. Replacements usually need a crane, and curb adapters add cost when the new unit's footprint differs.
- Condition of what's there
- Corroded gas lines, failed electrical disconnects or a rotted roof curb have to be addressed for a safe install, and we flag them before work starts.
Commercial HVAC questions
Something not covered here? (509) 213-1614
Do you work on small businesses or only large buildings?
Small and mid-size buildings are our focus: retail shops, offices, churches, restaurants and farm or equipment shops. If your building runs on rooftop units, split systems or unit heaters, we can help. We'll tell you up front if a job is outside what we do.
Can you service equipment that isn't Trane?
Yes. We work on most major commercial brands. We know Trane equipment especially well, but we'll diagnose and repair whatever is on your roof and explain parts availability for your brand.
Should we repair our rooftop unit or replace it?
It depends on age, the cost of the repair and the condition of the coils and heat exchanger. A failed compressor in an older unit with corroded coils is usually a replacement, while a bad motor or control board in a sound unit is worth fixing. We show you photos and give you both options in writing.
Will the work shut down our business?
Most repairs happen with little disruption. For replacements we plan the crane lift and shutdown with you, often early in the day or outside business hours, so the building is without heat or cooling for as short a time as possible.
What if a unit fails at night or on a weekend?
Call us anytime. We offer 24/7 emergency HVAC repair for commercial customers, and there are no emergency or after-hours fees.
Talk through your building's equipment with us
Tell us what you're running and what's going wrong. We'll come look, explain your options and give you a written quote before anything is done.