Everything that isn't the box in the basement.
Cleaning the supply and return ductwork that circulates every cubic foot of air in the house. Worth doing after a remodel, after a rodent problem, or when a system has run for years on a neglected filter — and we say so when ducts don't need it.
Duct cleaning →
Filtration, humidity control, ventilation and air cleaners for the tight, well-sealed houses that dominate Columbia's newer stock. Summer pushes indoor humidity up and winter heating drives it down hard — both show up as complaints people blame on the thermostat.
Air quality →
The whole heating side under one roof: gas, propane and electric furnaces, heat pumps, dual-fuel systems, geothermal and ductless heat. Not sure which you have? Plenty of people aren't — we'll sort it out on the phone.
Heating services →
The cooling counterpart: repair, replacement, sizing, refrigerant service and seasonal maintenance on split systems, packaged units and heat pumps. Columbia logs 1,248 cooling degree days a year, 382 in July alone.
Cooling services →
Rooftop units, split systems and light commercial equipment for storefronts, offices, clinics and small industrial buildings. Downtime costs money by the hour, so 24/7 answering and the no-surcharge policy apply to commercial accounts too.
Commercial HVAC →
Columbia is only 48.7% owner-occupied, so roughly 27,000 renter households depend on somebody else's HVAC decisions. We handle turn-over service, multi-unit agreements and response-time commitments for landlords and management companies.
For property managers →
