ACI Northwest has served North Idaho since 1992, and that includes Spirit Lake. One of northern Kootenai County’s oldest towns, this former timber-and-resort community still has its historic downtown, its lakeside cabins, and a growing ring of new homes as families settle on the plateau. We work across all three, keeping historic homes, lake getaways, and new builds comfortable year-round.
We cover the whole home: heating, air conditioning, indoor air quality, water heaters, electrical, and generators. We handle installation, replacement, repair, and maintenance.
HVAC for a Historic Town by the Lake
Spirit Lake’s housing runs from early-1900s homes near the historic core to lakeside cabins and brand-new subdivisions, and each asks for something different. Older homes often run aging equipment that’s ready for an efficient replacement, and some rely on boiler or radiant heat, which we service, repair, and replace. Lakeside cabins that never had ductwork are ideal for ductless mini-splits, and for part-time lake homes, smart thermostats let you monitor and protect the place while you’re away. New builds benefit from high-efficiency systems sized right, and we handle furnaces, heat pumps, and air handlers across all of it.
Our Services
Built for the North County
Spirit Lake sits on a forested plateau near the foothills of Mount Spokane, with larger lots on the edges of town where many properties run on well and septic and off the natural-gas grid. That makes heat pumps and dual-fuel systems an efficient choice, and where propane or electric heat is already in place, we service and upgrade those too. Hard well water is tough on water heaters, so we keep tank and tankless systems running efficiently. With cold, snowy winters, hot dry summers, and a late-summer wildfire smoke season, dependable heating, reliable cooling, and whole-home filtration all matter here.
One Local Team for the Whole Home
- Heating: furnaces, heat pumps, boilers, radiant, ductless, air handlers
- Air conditioning: central air and heat pumps, ductless mini-splits
- Indoor air quality: filtration, purifiers, humidifiers, ERVs
- Water heaters: tank and tankless, install and service
- Electrical & generators: panels and wiring, whole-home standby power
Rated 4.8 stars across 500+ reviews, NATE-certified, and backed by a 100% satisfaction guarantee, with premier dealer relationships including Lennox, Mitsubishi Electric, Daikin, and Trane.
Spirit Lake HVAC FAQs
I have an older home near downtown. Can you service its boiler or radiant heat?
Yes. We service, repair, and replace boiler and radiant heat common in Spirit Lake’s older homes, and we’ll advise on retrofits when it’s time.
My lake cabin doesn’t have ductwork. What are my options?
Ductless mini-splits are ideal for cabins without ductwork, adding efficient heating and cooling without a major remodel, and smart thermostats help protect a part-time home while you’re away.
We’re building on the edge of town. Can you handle new-construction HVAC?
Yes. We size and install complete new-construction systems, including high-efficiency and zoned setups.
My property is on a well and off natural gas. What heating fits best?
Heat pumps and dual-fuel systems are often the most efficient choice, and we service propane and electric systems as well.
