11 HVAC Service Contractors in Grafton, WI
Top-Rated HVAC Service Contractors in Grafton
K Komfort Heating & Cooling
“475 reviews yield a 4.9-star average, with every published reviewer awarding 5 stars. Customers frequently mention specific technicians (Brandon, Ryu, Gurman,…”
Blain's Farm & Fleet
“Seven of eight reviewers awarded perfect five-star ratings, with particular emphasis on the Tire and Auto Service Center and garden center deals. Customers…”
All HVAC Service Contractors (11 total)
Advent Appliance Repair Service
“Positive reviews cite diagnostic skill and same-day scheduling; the single negative review cites…”
Lakeside Home Inspection
“All 117 reviews award a perfect 5-star rating, with multiple reviewers specifically praising Jeremy's…”
Holton Brothers Inc
“11 of 13 reviewers awarded 5-star ratings, with specific technicians Thomas, Chad, Peter, and Matt mentioned…”
Mike the Plumber
“Two of five reviewers awarded 5 stars, praising precision and honesty. The three lower-rated reviews cite the…”
Merle Wuenne Plumbing & Pumps
“One of three reviewers praises pump system expertise and fair pricing accumulated over 25 years, while…”
Home Services at The Home Depot
“Three reviews reveal inconsistent service quality: one satisfied customer praised door installation results…”
Environmental Products & Systems, Inc
“The single five-star review describes the company as friendly and dependable, with the reviewer noting they…”
HVAC Service Costs in Grafton
General HVAC service pricing across maintenance, repair, and installation in Grafton.
| 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 Grafton, WI: What to Expect
Grafton sits within the Milwaukee metropolitan area, where the Great Lakes continental climate shapes every homeowner's priorities. Winter temperatures plunge to an average low of 14 F, creating dominant heating demand from November through March, while the brief summer cooling season spans roughly eight to ten weeks with peaks near 83 F. This climate pattern makes reliable HVAC service Grafton a seasonal necessity rather than a luxury. Twenty-two contractors serve the area, collectively earning an average rating of 4.5 stars across nearly 4,000 reviews, and only one company currently offers around-the-clock emergency response.
Service costs in this market reflect the equipment complexity and labor involved. A standard service call or diagnostic runs $81 to $216, while a routine tune-up for a single system typically costs $76 to $216. When repairs become necessary, homeowners can expect to pay anywhere from $162 for minor fixes up to $1,296 for more involved standard repairs. Wisconsin does not require a statewide HVAC license, so local licensing requirements apply and vary by municipality, meaning homeowners should verify credentials with their city or county before hiring a contractor.
Customer feedback points to clear differences in service approach. K Komfort Heating & Cooling maintains a 4.9 rating across 454 reviews, with clients repeatedly highlighting same-day emergency response and transparent diagnostics. Technicians named in five-star reviews include Ryu and Eugene, whose communication style and accurate system sizing earn consistent praise. This pattern of responsiveness and clarity appears to be the distinguishing factor among the highest-rated providers in the area.