298 HVAC contractors ranked by CR ScoreUpdated 0 paid placements in this rankingHow we rank →
Best overall in Waterford: The Thielmann Group, CR Score 65/100; 5.0★ from 448 Google reviews; open 24/7.
Best for emergencies (open 24/7): H. J. Faust, Inc. Heating and Air Conditioning, posts 24/7 hours; ranked #2 of 298.
Most-reviewed: Roman Home Services - Electric, Plumbing, Heating & Cooling, 5,231 Google reviews at 4.9★, the most of 298 ranked; ranked #18.
Rankings can't be bought. Contractors can't pay to change their rank or score. How we rank
298 Waterford HVAC contractors are ranked here by CR Score, from ten published factors. 127 are open 24/7, 183 open Saturdays and 156 open Sundays, based on posted hours. The median Google rating is 4.9★ across 298 rated businesses.
| Rank | Business | CR Score | Google rating | Based in | Hours | Best for |
|---|---|---|---|---|---|---|
| 1 | The Thielmann Group | 65 | 5.0★ (448) | Waterford | 24/7 | Overall |
| 2 | H. J. Faust, Inc. Heating and Air Conditioning | 64 | 4.9★ (1,340) | Burlington, 8 mi away | 24/7 | Emergencies |
| 3 | Midwest Heating & Cooling | 64 | 4.8★ (2,376) | Mukwonago, 9 mi away | 24/7 | — |
| 4 | Absolute Comfort HVAC LLC | 64 | 5.0★ (201) | Waterford | 24/7 | — |
| 5 | 1st Choice Heating & Cooling | 63 | 4.9★ (1,076) | Muskego, 10 mi away | 24/7 | — |
| 6 | Thielmann Heating, Cooling & Plumbing | 63 | 5.0★ (458) | Burlington, 7 mi away | 24/7 | — |
| 7 | Kettle Moraine Heating & Air Conditioning, LLC | 63 | 4.9★ (4,102) | Delafield, 19 mi away | 24/7 | — |
| 8 | Thielmann Heating, Cooling & Plumbing | 63 | 4.9★ (1,665) | New Berlin, 15 mi away | 24/7 | — |
| 9 | Southport Home Services | 63 | 4.8★ (2,067) | Caledonia, 14 mi away | 24/7 | — |
| 10 | New Berlin Heating & Air Conditioning | 61 | 4.9★ (1,158) | New Berlin, 18 mi away | 24/7 | — |
Ordered by CR Score, a 0–100 score from ten published factors. Paid placement never changes the order.
Scores below: based on 8 of 10 factors; credentials and recency not yet collected. Hatched segments mark factors we don't have yet.
Ranked #1 because of its Google rating and trade focus: 5.0★ from 448 Google reviews, listed on Google as “Heating contractor”.
Based in Burlington, 8 mi away
Ranked #2 because of its Google rating and trade focus: 4.9★ from 1,340 Google reviews, listed on Google as “Heating contractor”.
Based in Mukwonago, 9 mi away
Ranked #3 because of its Google rating and trade focus: 4.8★ from 2,376 Google reviews, listed on Google as “Air conditioning repair service”.
Based in Waterford
Ranked #4 because of its Google rating and trade focus: 5.0★ from 201 Google reviews, listed on Google as “HVAC contractor”.
Based in Muskego, 10 mi away
Ranked #5 because of its Google rating and trade focus: 4.9★ from 1,076 Google reviews, listed on Google as “HVAC contractor”.
Based in Burlington, 7 mi away
Ranked #6 because of its Google rating and trade focus: 5.0★ from 458 Google reviews, listed on Google as “Heating contractor”.
Based in Delafield, 19 mi away
Ranked #7 because of its Google rating and trade focus: 4.9★ from 4,102 Google reviews, listed on Google as “HVAC contractor”.
Based in New Berlin, 15 mi away
Ranked #8 because of its Google rating and trade focus: 4.9★ from 1,665 Google reviews, listed on Google as “HVAC contractor”.
Based in Caledonia, 14 mi away
Ranked #9 because of its Google rating and trade focus: 4.8★ from 2,067 Google reviews, listed on Google as “HVAC contractor”.
Based in New Berlin, 18 mi away
Ranked #10 because of its Google rating and trade focus: 4.9★ from 1,158 Google reviews, listed on Google as “HVAC contractor”.
Based in New Berlin, 17 mi away
Ranked #11 because of its Google rating and trade focus: 4.8★ from 1,334 Google reviews, listed on Google as “HVAC contractor”.
Based in Waukesha, 16 mi away
Ranked #12 because of its Google rating and trade focus: 5.0★ from 446 Google reviews, listed on Google as “HVAC contractor”.
Based in Caledonia, 15 mi away
Ranked #13 because of its Google rating and trade focus: 4.9★ from 502 Google reviews, listed on Google as “HVAC contractor”.
Based in Antioch, 20 mi away
Ranked #14 because of its Google rating and trade focus: 4.9★ from 1,086 Google reviews, listed on Google as “HVAC contractor”.
Based in Caledonia, 20 mi away
Ranked #15 because of its Google rating and trade focus: 4.9★ from 1,103 Google reviews, listed on Google as “HVAC contractor”.
Based in Antioch, 21 mi away
Ranked #16 because of its Google rating and trade focus: 5.0★ from 745 Google reviews, listed on Google as “HVAC contractor”.
Based in Brookfield, 22 mi away
Ranked #17 because of its Google rating and trade focus: 4.9★ from 1,113 Google reviews, listed on Google as “HVAC contractor”.
Based in West Allis, 19 mi away
Ranked #18 because of its Google rating and review volume: 4.9★ from 5,231 Google reviews, the most in Waterford.
Based in Lake Geneva, 17 mi away
Ranked #19 because of its Google rating and trade focus: 4.7★ from 976 Google reviews, listed on Google as “HVAC contractor”.
Based in Brookfield, 20 mi away
Ranked #20 because of its Google rating and trade focus: 5.0★ from 436 Google reviews, listed on Google as “HVAC contractor”.
Based in Brookfield, 19 mi away
Ranked #21 because of its Google rating and trade focus: 4.9★ from 482 Google reviews, listed on Google as “HVAC contractor”.
Based in Mukwonago, 13 mi away
Ranked #22 because of its Google rating and trade focus: 5.0★ from 106 Google reviews, listed on Google as “HVAC contractor”.
Based in Mukwonago, 9 mi away
Ranked #23 because of its Google rating and trade focus: 5.0★ from 62 Google reviews, listed on Google as “HVAC contractor”.
Based in Sussex, 24 mi away
Ranked #24 because of its Google rating and trade focus: 4.9★ from 932 Google reviews, listed on Google as “HVAC contractor”.
Based in Waukesha, 19 mi away
Ranked #25 because of its Google rating and trade focus: 4.6★ from 1,249 Google reviews, listed on Google as “Furnace repair service”.
#1 to #25 are shown in full above. Here are #26 to #50, in CR Score order; each links to its profile. We publish the top 50 of 298 ranked HVAC contractors here; the rest are on their profiles.
20 more HVAC contractors within 25 mi that we can't rank yet: too few reviews, or a trade we couldn't confirm. Listed A to Z.
| Business | Google rating | Distance |
|---|---|---|
| Al Misurelli & Son, Inc. | 4.5★ (2) | 22 mi |
| Best Heating And Air Conditioning | 2.5★ (2) | 23 mi |
| Beyond Reality Plumbing | 4.2★ (5) | In Waterford |
| Blaine's Crane Service | 5.0★ (2) | 16 mi |
| Bredan Mechanical Systems | 5.0★ (2) | 16 mi |
| BUILDING REPAIR SERVICE INC - Heating & Cooling | 5.0★ (2) | 15 mi |
| Celis HVAC | 5.0★ (2) | 23 mi |
| Envira-Tech Inc | 4.0★ (2) | 21 mi |
| IMI LLC | 5.0★ (2) | 20 mi |
| Korman Plumbing | 3.9★ (8) | In Waterford |
| Maas & Sons Pump, Well, and Plumbing | 4.9★ (571) | In Waterford |
| Mannina Creations | 5.0★ (2) | 21 mi |
| Perez Plumbing | 3.8★ (13) | In Waterford |
| Pure Mecahnical | 5.0★ (2) | 19 mi |
| R J Refrigeration Inc | 5.0★ (2) | 24 mi |
| Randy's Heating and Air Conditioning | 1.0★ (1) | In Waterford |
| RTU Replacement Specialists, LLC | 5.0★ (1) | In Waterford |
| Southport Mechanical | 2.5★ (2) | 23 mi |
| TMS Service | 4.5★ (2) | 14 mi |
| Watertight Watercare Inc | 4.3★ (36) | In Waterford |
National price ranges in USD, not adjusted for Waterford. Each row names its basis and the month we checked it.
| Job | Low | Typical | High | Basis | Checked |
|---|---|---|---|---|---|
| AC replacement | $3,887 | $5,978 | $8,073 | Per system, installed (unit plus labor); typical range of customer-reported jobs. US national range | October 2026 |
| Furnace replacement | $2,823 | $4,814 | $6,896 | Per system, installed; typical range of customer-reported jobs. US national range | October 2026 |
In Wisconsin, furnace and heat pump calls peak in the coldest winter weeks and AC calls in summer heat waves. Spring and fall are the easiest times to book maintenance or a replacement.
We scored 298 Waterford HVAC contractors on ten factors, weighted as shown. A business is ranked when its trade is confirmed and it has 3 or more Google reviews or a claimed profile. A business with no Google reviews scores zero on rating, review volume and recency. Other unknown factors are left out, not counted as zero. Scores last refreshed October 23, 2026.
Paid placement never changes a rank or score. Featured businesses are paid, labelled, limited to 3 and shown above the ranking, outside it.
| Factor | Weight | Computed from | In Waterford data |
|---|---|---|---|
| Reputation | 25% | Google star rating, adjusted for how many reviews back it | Measured |
| Credentials | 15% | Active state license, bond and workers’ comp on file | Not yet collected |
| Review volume | 10% | Number of Google reviews, compared with the most-reviewed business on the list | Measured |
| Recency | 5% | Share of reviews from the last 12 months | Not yet collected |
| Availability | 5% | Weekly open hours, Saturday, Sunday, 24/7 or same-day | Measured |
| Trade focus | 10% | How clearly the business does this trade (its Google category and name) | Measured |
| Proximity | 5% | Based in the city scores highest, less the farther away it is | Measured |
| Claimed profile | 10% | The business has claimed its ContractorsRanked profile (free or paid earn the same) | Measured |
| Partnered | 5% | The business links to ContractorsRanked from its own website with our badge, checked periodically | Measured |
| ContractorsRanked reviews | 10% | Verified customer reviews collected by ContractorsRanked: their rating and how many there are | Measured |