Showing results near Waterbury
We don't have hvac companies listed specifically in Waterbury yet — these top-rated pros from New Haven serve your area and are available for calls and quotes today.
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24-Hour HVAC Companies in Waterbury, CT — Always Available
Emergencies don't keep business hours. These hvac companies in Waterbury are available 24 hours a day, 7 days a week — including holidays.
As of July 2026, RatingsNearMe ranks 20 hvac companies in Waterbury, CT by the RNM Score — a 0–100 rating built from Google ratings, review volume, sentiment, and profile completeness. The top-ranked is Evergreen Heating & Cooling, LLC. with a 5.0-star rating from 20 Google reviews and an RNM Score of 75/100. Also in the top tier: Nero Air Conditioning & Heating Inc. and Accuray Mechanical, LLC. The average rating across all listed hvac companies in Waterbury is 4.7 stars from 194 reviews per business on average.
HVAC service in Waterbury: $75–$150/hr for repairs; full system replacement $4,000–$12,000 depending on size and efficiency.
Rankings updated July 4, 2026 · RNM Score = ratings (35%), review volume (30%), sentiment (20%), completeness (10%), availability (5%) · Not paid placement.
Local Market Snapshot
20
Businesses listed
4.7★
Avg rating
194
Avg reviews
Jul 4, 2026
Last updated
Top Rated HVAC Companies
Exceptional 5.0-star rating from over 20 Google reviews in New Haven.
81 Overlook Dr, Hamden, CT 06514, USATrusted by hundreds of New Haven customers with a strong 4.7-star rating.
334 State St, North Haven, CT 06473, USAConsistently rated 5.0 stars from 143 Google reviews in New Haven.
401 Sackett Point Rd, North Haven, CT 06473, USAHVAC Companies Rankings in Waterbury, CT
| # | Business | Rating | Reviews |
|---|---|---|---|
| #1 | Evergreen Heating & Cooling, LLC.81 Overlook Dr, Hamden, CT 06514, USA | 5.0★ | 20 |
| #2 | Nero Air Conditioning & Heating Inc.334 State St, North Haven, CT 06473, USA | 4.7★ | 269 |
| #3 | Accuray Mechanical, LLC401 Sackett Point Rd, North Haven, CT 06473, USA | 5.0★ | 143 |
| #4 | Heating & Air Conditioning New Haven426 Whalley Ave, New Haven, CT 06511, USA | 4.9★ | 37 |
| #5 | Mechanical Heating and Air Conditioning, Inc.300 Whalley Ave Suite 201, New Haven, CT 06511, USA | 3.5★ | 21 |
| #6 | Heating & Cooling17 Dixwell Ave, New Haven, CT 06511, USA | 4.9★ | 9 |
| #7 | CTS Heating & Cooling207 Burwell Rd, West Haven, CT 06516, USA | 5.0★ | 79 |
| #8 | Edgerton, Inc.786 Main St, Monroe, CT 06468, USA | 4.8★ | 573 |
| #9 | New Haven Heating & Cooling Services688 Ella T Grasso Blvd, New Haven, CT 06519, USA | 5.0★ | 7 |
| #10 | Home Comfort Heating & Cooling64 Thompson St A207, East Haven, CT 06513, USA | 4.7★ | 75 |
Ranked by verified ratings & review volume · Data from Google Business listings · Updated July 2026
All HVAC Companies in Waterbury
4.9 stars from 37 reviews, reflecting exceptional service in New Haven.
426 Whalley Ave, New Haven, CT 06511, USA
21 Google reviews give this New Haven HVAC company a mixed 3.5-star rating.
300 Whalley Ave Suite 201, New Haven, CT 06511, USA
Exceptional 4.9-star rating from 9 Google reviews in New Haven.
17 Dixwell Ave, New Haven, CT 06511, USA
Known for exceptional 5.0-star service from nearly 80 local Google reviews.
207 Burwell Rd, West Haven, CT 06516, USA
Boasting 4.8 stars from over 570 reviews, this HVAC company is highly trusted.
786 Main St, Monroe, CT 06468, USA
Exceptional 5.0-star rating from 7 Google reviews in New Haven.
688 Ella T Grasso Blvd, New Haven, CT 06519, USA
Trusted by locals with a 4.7-star average from 75 Google reviews.
64 Thompson St A207, East Haven, CT 06513, USA
Trusted by hundreds of customers with a strong 4.6-star average rating.
25 Spring St, West Haven, CT 06516, USA
Trusted for exceptional HVAC service with a 4.8★ average from over 130 reviews.
325 Howard Ave, New Haven, CT 06519, USA
Trusted by hundreds of customers with a near-perfect 4.9-star average rating.
9 Whitney Ln, West Haven, CT 06516, USA
With 90 perfect five-star reviews, this Hartford HVAC team is highly trusted.
143 Vanderbilt Ave, West Hartford, CT 06110, USA
Exceptional 5.0-star rating from over 30 reviews in New Haven.
8 Coyle Dr, West Haven, CT 06516, USA
Rated 4.9 stars from 19 reviews, reflecting consistently exceptional service.
10 N Main St #377, West Hartford, CT 06107, USA
Trusted by thousands, this Hartford HVAC pro holds a strong 4.4-star rating.
333 N Main St, West Hartford, CT 06117, USA
Trusted by hundreds, this HVAC company holds a stellar 4.8-star rating.
786 Silas Deane Hwy, Wethersfield, CT 06109, USA
Trusted by over 100 customers with a solid 4.3-star rating in New Haven.
259 Commerce St, East Haven, CT 06512, USA
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HVAC Companies in Waterbury, CT — Compared
| # | Business | RNM Score | Rating | Reviews |
|---|---|---|---|---|
| 1 | Evergreen Heating & Cooling, LLC. | 75/100 | 5.0 ★ | 20 |
| 2 | Nero Air Conditioning & Heating Inc. | 83/100 | 4.7 ★ | 269 |
| 3 | Accuray Mechanical, LLC | 85/100 | 5.0 ★ | 143 |
| 4 | Heating & Air Conditioning New Haven | 76/100 | 4.9 ★ | 37 |
| 5 | Mechanical Heating and Air Conditioning, Inc. | 50/100 | 3.5 ★ | 21 |
| 6 | Heating & Cooling | 69/100 | 4.9 ★ | 9 |
| 7 | CTS Heating & Cooling | 82/100 | 5.0 ★ | 79 |
| 8 | Edgerton, Inc. | 85/100 | 4.8 ★ | 573 |
| 9 | New Haven Heating & Cooling Services | 70/100 | 5.0 ★ | 7 |
| 10 | Home Comfort Heating & Cooling | 77/100 | 4.7 ★ | 75 |
Ranked by RatingsNearMe Score · ratings (35%), review volume (30%), sentiment (20%), completeness (10%), availability (5%) · July 2026
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Frequently Asked Questions — HVAC Companies in Waterbury
How do I find the best hvac companies in Waterbury?
Look for businesses with 4.5+ stars, 50+ verified reviews, proper licensing and insurance, and transparent pricing. The top-ranked hvac companies in Waterbury on this page are scored by our algorithm that weighs ratings, review count, and profile completeness.
Are hvac companies in Waterbury licensed and insured?
Licensing requirements vary by trade and state. For most home service contractors, CT requires both a state license and liability insurance. Always ask any contractor for proof of current insurance and a copy of their license number before work begins — you can verify most licenses on your state licensing board's website.
How much do hvac companies charge in Waterbury, CT?
Prices vary by scope, materials, and contractor experience. Use the free quote form on this page to request estimates from multiple local pros simultaneously. Getting 3+ quotes is the single most effective way to avoid overpaying.
What should I look for when hiring a hvac companies in Waterbury?
Verify licensing and insurance, read recent reviews on multiple platforms, ask for a written estimate before work starts, confirm they pull permits when required, and check references from recent local projects. Featured businesses on this page are ranked by verified ratings and review quality.
How are the hvac companies on this page ranked?
Rankings use a transparent algorithm: star rating (35%), review volume (30%), customer sentiment (20%), profile completeness (10%), and availability (5%). Featured Partner listings have paid for enhanced visibility but must still earn their position through real customer reviews — sponsored listings are clearly labeled.
HVAC Companies in Nearby Cities
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How Rankings Work on This Page
Every hvac companies on RatingsNearMe is scored transparently: star rating (35%), review volume (30%), customer sentiment (20%), profile completeness (10%), and availability (5%). Businesses labeled exclusive or premium are Featured Partners — they have paid for enhanced visibility but must still rank through real customer reviews. We cap sponsored boosts so bad businesses can never buy the top spot.
Editorial notice: Ratings are based on publicly available data from Google Business listings. Consumers should independently verify licensing, insurance, and credentials before hiring any service provider. Last updated: July 4, 2026.
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