93/100CR Score
Ranked #1 because of its Google rating and availability: 4.9★ from 8,968 Google reviews, open 24/7.
- 4.9★ from 8,968 Google reviews
- Open 24/7
- Hours
- Open 24 hours, 7 days
- Address
- 51327 Quadrate Dr, Macomb, MI 48042
Best HVAC Contractors in Troy, MI (2026)
774 HVAC contractors ranked by CR ScoreUpdated 0 paid placements in this rankingHow we rank →
The short answer
- 1
Best overall in Troy: Randazzo Heating & Cooling, CR Score 93/100; 4.9★ from 8,968 Google reviews; open 24/7.
- 2
Best for emergencies (open 24/7): Andy's Statewide, posts 24/7 hours; ranked #2 of 774.
- 17
Most-reviewed: Cregger Plumbing, Heating & Cooling, 6,410 Google reviews at 4.9★, the most of 774 ranked after Randazzo Heating & Cooling; ranked #17.
Rankings can't be bought. Contractors can't pay to change their rank or score. How we rank
774 Troy HVAC contractors are ranked here by CR Score, from 8 published factors. 235 are open 24/7, 510 open Saturdays and 383 open Sundays, based on posted hours. The median Google rating is 4.8★ across 774 rated businesses.
Top 10 HVAC contractors in Troy at a glance
| Rank | Business | CR Score | Google rating | Based in | Hours | Best for |
|---|---|---|---|---|---|---|
| 1 | Randazzo Heating & Cooling | 93 | 4.9★ (8,968) | Auburn Hills, 11 mi away | 24/7 | Overall |
| 2 | Andy's Statewide | 92 | 4.8★ (6,170) | Auburn Hills, 10 mi away | 24/7 | Emergencies |
| 3 | 1st Heating and Cooling | 91 | 5.0★ (1,067) | Auburn Hills, 9 mi away | 24/7 | — |
| 4 | Briarwood Heating & Cooling | 91 | 4.9★ (633) | Rochester Hills, 4 mi away | 24/7 | — |
| 5 | Levine & Sons Plumbing, Heating & AC | 91 | 4.8★ (5,322) | Southfield, 12 mi away | 24/7 | — |
| 6 | FLAME Heating, Cooling, Plumbing, Electrical | 90 | 4.7★ (3,170) | Warren, 9 mi away | 24/7 | — |
| 7 | Great Dane Heating, Cooling, Electrical, & Plumbing | 90 | 4.8★ (3,178) | Clinton Township, 13 mi away | 24/7 | — |
| 8 | A Plus Heating and Cooling, Inc. | 90 | 4.9★ (351) | Sterling Heights, 6 mi away | 24/7 | — |
| 9 | Pilot Mechanical Heating & Cooling | 89 | 4.9★ (263) | Rochester Hills, 5 mi away | 24/7 | — |
| 10 | Ferrara Heating & Air Conditioning Inc | 89 | 4.9★ (406) | Rochester Hills, 7 mi away | 24/7 | — |
The 774 best HVAC contractors in Troy, ranked
Ordered by CR Score, a 0–100 score from 8 published factors. Paid placement never changes the order.
Scores below: based on 6 of 8 factors; credentials and recency not yet collected. Hatched segments mark factors we don't have yet.
Based in Auburn Hills, 10 mi away
92/100CR ScoreRanked #2 because of its Google rating and availability: 4.8★ from 6,170 Google reviews, open 24/7.
- 4.8★ from 6,170 Google reviews
- Open 24/7
- Hours
- Open 24 hours, 7 days
- Address
- 4828 Joslyn Rd, Orion, MI 48359
Based in Auburn Hills, 9 mi away
91/100CR ScoreRanked #3 because of its Google rating and availability: 5.0★ from 1,067 Google reviews, open 24/7.
- 5.0★ from 1,067 Google reviews
- Open 24/7
- Hours
- Open 24 hours, 7 days
- Address
- 1032 W Huron St, Waterford Township, MI 48328
Based in Rochester Hills, 4 mi away
91/100CR ScoreRanked #4 because of its Google rating and availability: 4.9★ from 633 Google reviews, open 24/7.
- 4.9★ from 633 Google reviews
- Open 24/7
- Hours
- Open 24 hours, 7 days
- Address
- 46851 Dequindre Rd, Rochester Hills, MI 48307
Based in Southfield, 12 mi away
91/100CR ScoreRanked #5 because of its Google rating and availability: 4.8★ from 5,322 Google reviews, open 24/7.
- 4.8★ from 5,322 Google reviews
- Open 24/7
- Hours
- Open 24 hours, 7 days
- Address
- 23820 Telegraph Rd, Southfield, MI 48033
Based in Warren, 9 mi away
90/100CR ScoreRanked #6 because of its Google rating and availability: 4.7★ from 3,170 Google reviews, open 24/7.
- 4.7★ from 3,170 Google reviews
- Open 24/7
- Hours
- Open 24 hours, 7 days
- Address
- 2200 E 11 Mile Rd, Warren, MI 48091
Based in Clinton Township, 13 mi away
90/100CR ScoreRanked #7 because of its Google rating and availability: 4.8★ from 3,178 Google reviews, open 24/7.
- 4.8★ from 3,178 Google reviews
- Open 24/7
- Hours
- Open 24 hours, 7 days
- Address
- 36611 Gratiot Ave, Clinton Township, MI 48035
Based in Sterling Heights, 6 mi away
90/100CR ScoreRanked #8 because of its Google rating and availability: 4.9★ from 351 Google reviews, open 24/7.
- 4.9★ from 351 Google reviews
- Open 24/7
- Hours
- Open 24 hours, 7 days
- Address
- 43714 Utica Rd, Sterling Heights, MI 48314
Based in Rochester Hills, 5 mi away
89/100CR ScoreRanked #9 because of its Google rating and availability: 4.9★ from 263 Google reviews, open 24/7.
- 4.9★ from 263 Google reviews
- Open 24/7
- Hours
- Open 24 hours, 7 days
- Address
- 1025 John R Rd, Rochester Hills, MI 48307
Based in Rochester Hills, 7 mi away
89/100CR ScoreRanked #10 because of its Google rating and availability: 4.9★ from 406 Google reviews, open 24/7.
- 4.9★ from 406 Google reviews
- Open 24/7
- Hours
- Open 24 hours, 7 days
- Address
- 1576 Serene Ct, Rochester Hills, MI 48306
Based in Auburn Hills, 11 mi away
89/100CR ScoreRanked #11 because of its Google rating and availability: 4.9★ from 681 Google reviews, open 24/7.
- 4.9★ from 681 Google reviews
- Open 24/7
- Hours
- Open 24 hours, 7 days
- Address
- 980 S Cass Lake Rd, Waterford Township, MI 48328
Based in Berkley, 4 mi away
89/100CR ScoreRanked #12 because of its Google rating and availability: 4.9★ from 158 Google reviews, open 24/7.
- 4.9★ from 158 Google reviews
- Open 24/7
- Hours
- Open 24 hours, 7 days
Based in Saint Clair Shores, 7 mi away
89/100CR ScoreRanked #13 because of its Google rating and availability: 5.0★ from 172 Google reviews, open 24/7.
- 5.0★ from 172 Google reviews
- Open 24/7
- Hours
- Open 24 hours, 7 days
Based in Livonia, 15 mi away
89/100CR ScoreRanked #14 because of its Google rating and availability: 4.9★ from 1,199 Google reviews, open 24/7.
- 4.9★ from 1,199 Google reviews
- Open 24/7
- Hours
- Open 24 hours, 7 days
- Address
- 30885 Eight Mile W, Livonia, MI 48152
Based in Farmington Hills, 17 mi away
89/100CR ScoreRanked #15 because of its Google rating and availability: 4.9★ from 1,580 Google reviews, open 24/7.
- 4.9★ from 1,580 Google reviews
- Open 24/7
- Hours
- Open 24 hours, 7 days
- Address
- 23485 Industrial Park Dr, Farmington Hills, MI 48335
Based in Royal Oak, 6 mi away
89/100CR ScoreRanked #16 because of its Google rating and availability: 4.8★ from 333 Google reviews, open 24/7.
- 4.8★ from 333 Google reviews
- Open 24/7
- Hours
- Open 24 hours, 7 days
- Address
- 4238 Edgeland Ave, Royal Oak, MI 48073
Based in Ferndale, 10 mi away
89/100CR ScoreRanked #17 because of its Google rating and availability: 4.9★ from 6,410 Google reviews, open 24/7.
- 4.9★ from 6,410 Google reviews
- Open 24/7
- Hours
- Open 24 hours, 7 days
- Address
- 2335 Goodrich St, Ferndale, MI 48220
Based in Troy
89/100CR ScoreRanked #18 because of its Google rating and trade focus: 4.8★ from 1,204 Google reviews, listed on Google as “Air conditioning contractor”.
- 4.8★ from 1,204 Google reviews
- Hours
- Mon–Sun 8 AM–10 PM
- Address
- 360 E Maple Rd suite j, Troy, MI 48083
Based in Auburn Hills, 6 mi away
89/100CR ScoreRanked #19 because of its Google rating and trade focus: 4.9★ from 1,841 Google reviews, listed on Google as “HVAC contractor”.
- 4.9★ from 1,841 Google reviews
- Hours
- Mon–Fri 7:30 AM–8 PM · Sat–Sun 8 AM–5 PM
- Address
- 2275 Lancaster Rd, Bloomfield Hills, MI 48302
Based in Rochester, 6 mi away
89/100CR ScoreRanked #20 because of its Google rating and availability: 5.0★ from 111 Google reviews, open 24/7.
- 5.0★ from 111 Google reviews
- Open 24/7
- Hours
- Open 24 hours, 7 days
- Address
- 124 Highland Ave, Rochester, MI 48307
Based in Rochester, 6 mi away
89/100CR ScoreRanked #21 because of its Google rating and availability: 5.0★ from 116 Google reviews, open 24/7.
- 5.0★ from 116 Google reviews
- Open 24/7
- Hours
- Open 24 hours, 7 days
- Address
- 421 Parkdale Ave C2, Rochester, MI 48307
Based in Milford, 17 mi away
89/100CR ScoreRanked #22 because of its Google rating and availability: 4.9★ from 1,350 Google reviews, open 24/7.
- 4.9★ from 1,350 Google reviews
- Open 24/7
- Hours
- Open 24 hours, 7 days
- Address
- 1965 Best Dr, Commerce Township, MI 48390
Based in Auburn Hills, 8 mi away
88/100CR ScoreRanked #23 because of its Google rating and availability: 5.0★ from 151 Google reviews, open 24/7.
- 5.0★ from 151 Google reviews
- Open 24/7
- Hours
- Open 24 hours, 7 days
- Address
- 52188 Van Dyke Ave STE 116, Shelby Township, MI 48316
Based in Wixom, 21 mi away
88/100CR ScoreRanked #24 because of its Google rating and availability: 4.9★ from 2,591 Google reviews, open 24/7.
- 4.9★ from 2,591 Google reviews
- Open 24/7
- Hours
- Open 24 hours, 7 days
- Address
- 28930 Wall St, Wixom, MI 48393
Based in Sterling Heights, 6 mi away
88/100CR ScoreRanked #25 because of its Google rating and availability: 4.8★ from 266 Google reviews, open 24/7.
- 4.8★ from 266 Google reviews
- Open 24/7
- Hours
- Open 24 hours, 7 days
- Address
- 7501 Triangle Dr, Sterling Heights, MI 48314
HVAC contractors ranked #26 to #50
#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 774 ranked HVAC contractors here; the rest are on their profiles.
Also serving Troy
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 |
|---|---|---|
| Air Clinic Heating and Cooling | 4.8★ (102) | 8 mi |
| Aladdin Heating and Cooling | 5.0★ (43) | 6 mi |
| Contractors Full Services | In Troy | |
| Control Solutions, Inc. | In Troy | |
| Donald R Kellet Plumbing & Heating | 1.0★ (1) | In Troy |
| Emergency Drain and Plumbing, LLC | 4.9★ (346) | In Troy |
| Hardy Heating And Air Services | In Troy | |
| Heating & Cooling | 5.0★ (2) | 5 mi |
| Hi-Tech Environments Inc | In Troy | |
| HVAC - Troy | Plumbing Repairs - Troy | 24/7 Plumbers of Troy, MI | In Troy | |
| KT Group | In Troy | |
| Mando Environmental | In Troy | |
| Mechanical Comfort Inc. | In Troy | |
| MotorCity Mechanical LLC | In Troy | |
| R & R Heating & Cooling | In Troy | |
| U First Group LLC | 5.0★ (1) | In Troy |
| Unlimited HVAC and Refrigeration | 5.0★ (1) | In Troy |
| Warm Air Mechanical LLC | In Troy | |
| WeatherWise Heating and Air Conditioning | In Troy | |
| Zilka Heating and Cooling | 4.8★ (260) | 10 mi |
How much do HVAC contractors cost in Troy?
National price ranges in USD, not adjusted for Troy. 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 |
How to check an HVAC contractor's license in Michigan
In Michigan, Michigan LARA, Bureau of Construction Codes licenses Mechanical contractor licenses.
- Check that the status is active and the name matches the contract or truck.
- Ask for proof of insurance before work starts.
No chip usually means we have not matched a state record yet. Check the lookup yourself before you hire.
Guide checked October 2026. How we verify licenses
When to hire an HVAC contractor in Michigan
In Michigan, 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.
How we ranked Troy HVAC contractors
We scored 774 Troy HVAC contractors on 8 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. Unknown factors are left out of the score, not counted as zero. Scores last refreshed October 22, 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 Troy data |
|---|---|---|---|
| Reputation | 35% | Bayesian-adjusted Google star rating | Measured |
| Credentials | 15% | Active state license 0.6, bond 0.2, workers’ comp 0.2 | Not yet collected |
| Review volume | 10% | log10(reviews + 1) against the list maximum | Measured |
| Recency | 10% | Share of reviews from the last 12 months | Not yet collected |
| Availability | 10% | Weekly open hours, Saturday, Sunday, 24/7 or same-day | Measured |
| Trade focus | 10% | Google main category 1.0, business name 0.7, additional category 0.5 | Measured |
| Proximity | 5% | 1.0 when based in the city, falling to 0 at the trade’s radius | Measured |
| Completeness | 5% | Website, photos, description, hours, claimed profile (0.2 each) | Measured |
HVAC contractors in Troy: frequently asked questions
Who is the best HVAC contractor in Troy?
By CR Score, the highest-ranked HVAC contractor in Troy, MI is Randazzo Heating & Cooling with a CR Score of 93/100. It has 4.9★ from 8,968 Google reviews. It is open 24/7. Andy's Statewide (#2) and 1st Heating and Cooling (#3) follow. We ranked 774 HVAC contractors on 8 factors, last updated October 22, 2026.
How many HVAC contractors are there in Troy?
ContractorsRanked ranks 774 HVAC contractors serving Troy, MI. 6 of them are based in Troy; the rest serve it from nearby towns. Another 20 within 25 mi are listed but not ranked yet. Counts are as of October 2026.
Which HVAC contractors in Troy are open 24/7?
235 ranked HVAC contractors in Troy post 24/7 hours. The highest-ranked are Randazzo Heating & Cooling (#1), Andy's Statewide (#2) and 1st Heating and Cooling (#3). Hours come from each business's Google listing as of October 2026, so call to confirm.
Which HVAC contractors in Troy work on weekends?
510 of 774 ranked HVAC contractors post Saturday hours and 383 post Sunday hours. The highest-ranked open Saturdays are Randazzo Heating & Cooling (#1), Andy's Statewide (#2) and 1st Heating and Cooling (#3). Posted hours are office hours; crews may book weekend jobs separately.
How do I check an HVAC contractor's license in Michigan?
In Michigan, Michigan LARA, Bureau of Construction Codes handles licensing and covers Mechanical contractor licenses.
How much does ac replacement cost in Troy?
AC replacement typically costs $3,887 to $8,073, with $5,978 typical (Per system, installed (unit plus labor); typical range of customer-reported jobs. US national range). This is a national range, not adjusted for Troy. Prices were last checked October 2026. Get at least two written quotes before you hire.
What Google rating do Troy HVAC contractors have?
The median Google rating among 774 rated HVAC contractors in Troy is 4.8★, with a median of 29 reviews. Randazzo Heating & Cooling has the most, 8,968 reviews, and ranks #1. We adjust ratings for review count, so a few five-star reviews cannot top the list.
When is the best time to hire an HVAC contractor in Troy?
In Michigan, 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.
Update log for Troy
- October 2026: CR Scores recalculated for 774 hvac contractors serving Troy.
- October 2026: 5 duplicate listings merged.
More HVAC contractors and Troy pages
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