DeZiel Heating & Air, Inc.
HVAC
Serving Buffalo, MN
From Google Business Profile
4.7
662 Google reviews
Hours
| Monday | 6:30 AM–11:30 PM |
| Tuesday | 6:30 AM–11:30 PM |
| Wednesday | 6:30 AM–11:30 PM |
| Thursday | 6:30 AM–11:30 PM |
| Friday | 6:30 AM–11:30 PM |
| Saturday | 6:30 AM–11:30 PM |
| Sunday | 6:30 AM–11:30 PM |
Google categories: Heating contractor, Air conditioning contractor, Air conditioning repair service, Boiler supplier, Furnace repair service, Furnace store, Heating equipment supplier, HVAC contractor
View on Google Maps →Last checked October 13, 2026.
More from Google Business Profile
Listed features
- Accessibility
- Wheelchair accessible parking lot
Photos on Google: 111
Recent Google reviews (excerpts)
Written by Google users, not by EdgeLocal. EdgeLocal has not verified them and does not show reviewer names.
1 out of 5 stars · Jul 2026 · Owner replied
I'm not one to typically leave reviews, but felt the need to inform. I used DeZiel for a number of years when it was family-owned and they were great. Now that Dean's took over, it's Salesy and WAY Overpriced. Service Tech was fine. Nice…
2 out of 5 stars · Sep 2025 · Owner replied
Used to use DeZiel prior to their merger with Deans and always had good service - they installed a new furnace/AC unit and when they damaged drywall during installation they took care of repair and repainting at no cost to me. However…
5 out of 5 stars · Mar 2024 · Owner replied
DeZiel has come through once again. Two years ago they installed a new HVAC system in my house and the customer service and work was excellent. Now they just finished replacing my 21 year old water heater and nine year old water softener…
The owner replied to 5 of the 5 most recent reviews Google showed.
From Google Business Profile, last checked October 13, 2026.
About hvac contractors in Buffalo
HVAC contractors install, service and repair furnaces, air conditioners, heat pumps and ductwork. HVAC contractors replace furnaces and central air conditioners, install heat pumps and ductless mini-splits, perform seasonal tune-ups, seal and balance ductwork, add humidifiers and air filtration, and respond to no-heat emergencies.
Typical cost: $5,500–$14,000 for a furnace or central AC replacement. See the full cost guide
Typical U.S. ranges from industry sources (2024–25); not EdgeLocal data. Your quote will vary with scope, materials and location.
Questions to ask this contractor
- Ask for a load calculation: A Manual J calculation sizes equipment for your actual home.
- Compare equipment line by line: Match model numbers, efficiency ratings and warranty terms across quotes.
- Verify mechanical licensing: Iowa and several neighboring states license HVAC/mechanical work.