Williams County, ND
HVAC Pros in Williams County, ND
Compare verified HVAC providers serving Williams County, ND.
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Quick facts
- AreaWilliams County
- StateND
- Providers10
- Typical ticket$3.5k – $11k
Top local providers
Request quotes →- Williston heating & coolingTop rated
What customers say “Called them fairly early this morning with furnace problems. Received a call back within an hour. The gentleman…”
- A Cooper Mechanical, Inc.Top ratedinstallationrepairemergency
What customers say “The heater in my basement failed and Cooper Mechanical was able to provide an estimate and replace the unit quickly.…”
- Mon-Dak heating & plumbingTop rated
What customers say “I was at the end of my rope, and the knot was slipping ! I stopped in and explained my situation to them. 100 degree…”
- Cornerstone Repair and FabricationTop rated
What customers say “Had them replace my AC pump, recharge the system, and do some welding on my tank. Everything’s been running great for…”
- Just Chillin’ RefrigerationTop rated
What customers say “These guys are amazing! They come do what you need and fix it! They are very professional, they dont mess around, they…”
What customers say “All of the employees were respectful and did great work. I would recommend Polar to everyone. They are old fashioned in…”
What customers say “Materials available right in town. Dont have to drive an hour out of town for scoria.”
What customers say “Old water heater was leaking and soaking the basement. Everyone in town was a week out to fix, including themselves. .…”
What customers say “I will definitely be using him for all my HVAC needs. He came out to South of Epping within an hour of calling. Had my…”
What customers say “The gentleman that came was great. I had no interactions but my husband did. My husband appreciated his service. For…”
Local pricing snapshot
Repairs typically run $150–$600. Full system replacements range from $4k for a basic furnace to $12k+ for a premium heat pump. Prices vary by system type, efficiency, and whether ductwork modifications are needed.
Cities in this county
North Dakota hub →Frequently Asked Questions
Do HVAC pros in Williams County charge travel fees?
Some rural routes include a trip charge. Confirm before scheduling and ask whether it applies to the estimate.
Which cities are in Williams County?
Williams County includes Williston.
Are permits required for HVAC work?
Most North Dakota jurisdictions require a mechanical permit for equipment swaps. Ask your provider who pulls the permit and how it is priced.
Licensing verified weekly. Reviews refreshed within the last 30 days.
Licensing data: North Dakota Secretary of State — Contractor Licensing (state contractor registration only; no dedicated statewide HVAC trade license) · Company data: verified business records + Google Business profile
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