Hennessy Heating & AC
hvac
Serving Graceville, MN
No phone or website on file.
Location: 617 3rd St, Graceville, MN 56240From Google Business Profile
5.0
2 Google reviews
Google categories: Air conditioning contractor
View on Google Maps →Last checked October 19, 2026.
More from Google Business Profile
Photos on Google: 1
Recent Google reviews (excerpts)
Written by Google users, not by EdgeLocal. EdgeLocal has not verified them and does not show reviewer names.
5 out of 5 stars · Jan 2021
Fast service and very friendly
From Google Business Profile, last checked October 19, 2026.
About hvac contractors in Graceville
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.