8 HVAC Service Contractors in DeForest, WI
Top-Rated HVAC Service Contractors in DeForest
Art's Electric & Heating Inc.
“All 46 reviews are 5-star ratings, with customers praising same-day emergency response, fair pricing with no card service fees, and informative technicians.…”
Hooper Service
“Every reviewer awarded 5 stars, with two customers specifically naming Zach as their technician and praising his patience and diagnostic skill. Multiple…”
All HVAC Service Contractors (8 total)
LT Heating & Air LLC
“Six of seven visible reviewers awarded five stars, praising competitive pricing, on-time arrivals, and…”
Hooper Corporation Fabrication Facility
“All three documented reviews award 5 stars, with reviewers consistently praising delivery speed and team…”
DSG Madison (DeForest) - HVAC
“4 of 4 documented reviews award 4 stars or higher, with 1 reviewer providing a perfect 5-star rating for the…”
L T Heating & Air
“Two of three reviews award 5 stars, with customers praising professional, reliable service and fair pricing…”
HVAC Service Costs in DeForest
General HVAC service pricing across maintenance, repair, and installation in DeForest.
| Service | Low | Average | High |
|---|---|---|---|
Service call / diagnostic | $81 | $130 | $216 |
Routine tune-up (single system) | $76 | $135 | $216 |
Standard repair (avg) | $162 | $648 | $1,296 |
Major repair (compressor, heat exchanger) | $1,620 | $2,700 | $3,780 |
New system installation (mid-range) | $7,020 | $11,340 | $15,120 |
Full HVAC replacement AC + furnace combined | $12,517 | $14,504 | $15,228 |
Prices reflect continental metro averages compiled from published industry cost guides, contractor surveys, and regional labor data. Last updated: April 2026.
HVAC Service in DeForest, WI: What to Expect
DeForest sits within Madison's continental climate zone, where summers reach into the low 80s with notable humidity and winters drop to around 12 F with consistent snowfall. This pattern means heating systems work overtime from November through March while cooling demands spike during a short but sticky June-through-August window. With 25 contractors serving the area and an average rating of 4.3 stars across nearly 2,000 reviews, HVAC Service in DeForest reflects a competitive market meeting these intense seasonal demands.
Costs for common services follow clear ranges in this market. A service call or diagnostic runs $81 to $216, while a routine tune-up for a single system typically costs $76 to $216. Standard repairs average between $162 and $1,296 depending on complexity. Wisconsin does not require a statewide HVAC license, so local licensing applies, and homeowners should verify credentials with their municipality before hiring.
Customer feedback reveals distinct strengths among top-rated contractors. Art's Electric & Heating Inc. holds a 4.8 rating across 46 reviews, all of them 5-star, with clients praising same-day emergency response, fair pricing with no card service fees, and technicians who take time to explain things. Colin and Steve earn multiple mentions for their knowledge and patience. Hooper Corporation, also at 4.6 stars, draws praise for same-day response and weekend availability, with technicians Chris D, Toren, Tony, and Nick Peters named repeatedly by satisfied customers. Custom RV Services maintains a 4.6 rating from 125 reviews, with positive notes on emergency responsiveness and thorough inspections, though some clients mention communication could improve.