20 AC Installation Contractors in Waukesha, WI
Top-Rated AC Installation Contractors in Waukesha
On Time Heating & Cooling
“460 reviews yield a perfect 5-star average, with multiple reviewers specifically praising same-day emergency response times and honest assessments that avoid…”
Absolute Comfort HVAC LLC
“All 262 reviews carry 5-star ratings, with technicians Brent, Danny, and Erik praised by name across multiple customer accounts. Reviewers frequently mention…”
All AC Installation Contractors (20 total)
Tom's Heating Service
“288 reviews yield a 4.8 average rating. Positive reviews cite friendly staff, fair pricing, and knowledgeable…”
Majestic Custom Heating and Air Conditioning
“All 194 reviewers award 5 stars, with emergency response and same-day repair mentioned across multiple…”
ZIM Heating and Cooling
“All five detailed reviews award 5 stars, with three mentioning same-day or next-business-day appointment…”
Energy Saving Systems
“All 17 reviews carry 5-star ratings, with clients praising both routine service and emergency responsiveness.…”
Teko Mechanical Inc.
“Six of eight reviewers awarded 5 stars, with praise for same-day installation, fair pricing, and responsive…”
Prompt Heating & Air Conditioning LLC
“All 11 reviewers award 5 stars, with customers specifically naming Ty in 3 reviews for his honest advice,…”
Heating & Cooling
“All 16 reviews carry 5-star ratings, with three customers naming technician Andy and describing same-day…”
Waukesha HVAC Contractors
“4 reviewers specifically mention immediate problem resolution, with Craig noting a 45-minute repair…”
Heating & Air Conditioning
“All eight reviewers award 5 stars, with six specifically praising the technician's prompt arrival and…”
The Cool Guys
“Seven of eight reviews award five stars, with customers consistently citing honest assessments,…”
A/C Service Inc.
“Three of four detailed reviews award five stars, with customers praising responsive service, competitive…”
Bredan Mechanical Systems
“All three reviewers awarded five stars, with two specifically mentioning cost competitiveness and one…”
Mechanical Inc
“Three reviews collectively award a perfect 5.0-star rating, with one verified client explicitly recommending…”
Dillett Mechanical
“Both published reviews award five stars, with clients selecting the descriptor great to characterize their…”
1st Choice Heating & Cooling
“One reviewer highlights same-day AC repair during a heat wave with thorough explanations, while another cites…”
AC Installation Costs in Waukesha
New central AC installation costs in Waukesha, by system type and brand.
| Service | Low | Average | High |
|---|---|---|---|
Window unit | $168 | $392 | $784 |
Ductless mini-split (single zone) | $2,240 | $5,040 | $8,960 |
Central AC replacement (existing ducts) | $3,920 | $7,280 | $13,440 |
Central AC new install (with ductwork) | $7,840 | $13,440 | $22,400 |
Carrier (residential) | $4,256 | $6,944 | $11,760 |
Trane (residential) | $5,600 | $9,856 | $15,232 |
Lennox (residential) | $3,920 | $7,280 | $13,440 |
Rheem (residential) | $3,584 | $6,160 | $10,080 |
Prices reflect continental metro averages compiled from published industry cost guides, contractor surveys, and regional labor data. Last updated: April 2026.
AC Installation in Waukesha, WI: What to Expect
Waukesha sits within Milwaukee's Great Lakes continental climate zone, where winter temperatures regularly drop to 14 F while summer peaks reach only around 83 F. The brief cooling season spanning roughly eight to ten weeks still generates meaningful demand for professional AC Installation in Waukesha. Seven licensed contractors serve the area, collectively earning an impressive 4.8 average rating across over 1,500 customer reviews, with three offering round-the-clock emergency service for residents caught unprepared during sudden heat waves. Waukesha shares the heating-dominated energy profile typical of southeastern Wisconsin, making smart cooling investments worthwhile despite the short summer window.
Cost considerations break down clearly by system type. A basic window unit runs $168-$784, while a single-zone ductless mini-split system costs $2240-$8960. For homes with existing ductwork, central AC replacement typically ranges from $3920-$13440, with final pricing reflecting equipment efficiency ratings, labor complexity, and any needed modifications. Wisconsin currently imposes no statewide HVAC license requirement, so local business licensing applies and homeowners should verify credentials with local authorities before contracting any installer.
The customer feedback tells a consistent story. Reviewers repeatedly commend Brent, Danny, and Erik at Absolute Comfort HVAC for same-day service response and thorough explanations. On Time Heating & Cooling earns particular mention for honest assessments that skip unnecessary repairs, and their technicians arrive quickly during emergencies. At Seider Heating, Plumbing & Electrical, customers specifically cite technicians Mike, Andrew, and Andy K for professionalism and clear communication throughout the job. Across these highly rated contractors, patterns emerge around transparent pricing, respectful service, and getting the system sized correctly for each home.
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All HVAC Contractors in Waukesha, WI
Complete directory of 44 contractors — browse alphabetically
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All HVAC Contractors in Waukesha, WI
Complete directory of 44 contractors — browse alphabetically