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Rated 4.7/5 by customers (450+ verified reviews)
Coeur d’Alene & Spokane’s Preferred Heating & HVAC Company
ACI Northwest has 30+ years of heating, furnace, and heat pump service—plus cooling and electrical. Licensed, insured, and bonded. Upfront pricing. Same-day or next-day service.
Get A FREE Heating Assessment & Quote For Your Home
Tell us what you need and we’ll send a custom heating quote.
We only expect payment once the job is done. If you’re not happy, we will come back and ensure you are 100% satisfied with the work.
Dawson was prompt, professional, and friendly. He explained the situation clearly and fixed the issue on a Friday night during Memorial Day weekend.
Summer R
Rated 4.9/5 based on 600 Reviews
Our Goal Is To Exceed Our Customers Expectations
Your home or business deserves reliable heat when it matters most. For 30+ years, homeowners and businesses across Coeur d’Alene, Spokane, and the Inland Northwest have trusted ACI Northwest for dependable heating, cooling, and electrical service - with quality workmanship and care on every job.
Our Services
Furnace & Heat Pump Repair
Heating Tune-Up & Maintenance
New Furnace & Heat Pump Installation
24/7 Emergency Service
Our licensed technicians diagnose and repair all furnace and heat pump makes and models - fast. Seasonal heating tune-ups keep your system efficient, safe, and reliable. Count on same-day service, upfront pricing, and workmanship we stand behind.
Heating Repair & Maintenance
We design and install right-sized, high-efficiency furnaces and heat pumps for even, quiet comfort all winter. Every install includes proper load calculations, quality duct and electrical work, clear warranties, and financing options
Heating Installations
Get A FREE Heating Assessment & Quote For Your Home
Simple 3-step process. No pressure
Schedule Your Heating Check
Book online or call. A certified tech inspects your furnace or heat pump and diagnoses the issue.
2. Get Your Options & Quote
We explain what’s wrong and show heating repair or replacement options with upfront prices.
3. Comfort Restored
We handle most heating repairs the same day. If a new system’s best, we schedule install fast.
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Our air conditioning would not run so we called ACI at eight in the morning. They said their technician would be there between one and three he called and actually made it by 11 identified the problem and fixed it right away Gage was very professional and very helpful.
"very professional and very helpful. "
DiDI M
450+ Verified Reviews
Dawson came out for a maintenance service call and I am very pleased with his work. He was punctual, pleasant, and explained everything in detail. I would highly recommend ACI for furnace or AC system maintenance.
"I would highly recommend ACI "
Angie M
Mike came out after hours to help with our air conditioner. He explained his process and what her found very thoroughly. He went the extra mile and explained how to set our smart thermostat to circulate the air in our house to distribute the cool air.
"He went the extra mile"
Joseph S
I can't express how pleased I am with ACI Northwest and with the expert technician, Ryan in particular! I now have peace of mind knowing my very complex boiler system is running properly. Ryan went above and beyond making sure all is ok, even lowering my thermostat so I can read it!
"I would highly recommend.."
Linda P
With over 600+ five star verified reviews, we always strive for 100% customer satisfaction.
100% Satisfaction Guarantee - Our 100% satisfaction guarantee ensures you're delighted with every aspect of our service, from start to finish, no exceptions.
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BBB Acredited - We're proud to be accredited by the Better Business Bureau with an A* rating, reflecting our commitment to excellence and customer satisfaction.
Expert Roofers - Our expert roofers bring years of unmatched experience and skill, ensuring exceptional craftsmanship and the highest quality service for every project,
Immediate Installation - Our team ensures immediate installation, prioritizing efficiency without compromising on the quality and durability of your new roof.
24/7 Emergency Service
Licensed, Insured & Bonded
NATE-Certified Technicians.
Financing Available
Local Since 1992
600+ Verified Reviews
Rated 4.7/5 by Coeur d’Alene & Spokane homeowners
Get Your FREE Heating Assessment & Quote
We’ll Get Back To You The Same Day.
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These guys were amazing to work with. The inspection, salesman and install team(s) were always highly professional and friendly!
If I could give you guys 10 stars I would!
Sam M
Rated 4.7/5 based on 450+ Reviews
