72 HVAC Service Contractors in Hartford, CT

4.9 avg rating
5,019 total reviews3 offer 24/7 service
Need emergency service? 5 HVAC providers in Hartford offer 24/7 availability

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Top-Rated HVAC Service Contractors in Hartford

#1

Roto-Rooter Plumbing & Water Cleanup

4.8(1,216 reviews)
24/7 Highly Rated

All five featured reviewers awarded perfect 5-star ratings, with each testimonial specifically naming the technician who provided service. Common threads…

750 Main St Ste 321, Hartford, CT 06103
#2

Marzano Plumbing & Heating llc

4.9(700 reviews)
Highly Rated

Of 8 sampled reviews, 5 specifically praise individual technicians by name for professionalism and diagnostic skill. Two reviewers mention same-day or…

#3

Aire Serv of North Central Connecticut

4.9(482 reviews)
Highly Rated

All eight sampled reviewers award five-star ratings, with each story naming a specific technician who solved their problem. Multiple reviewers mention same-day…

All HVAC Service Contractors (72 total)

GMT Chimney Services

5.0(366)
Highly Rated

All 366 reviews award 5 stars, with multiple customers naming technicians Joe, Alex, and Juan. Three…

33 Lafayette St, Hartford, CT 06106

Ugo DiGrazia Air Conditioning and Heating, Inc.

4.9(365)
Highly Rated

Every reviewer awarded 5 stars. Three customers specifically named team members, Ivana, Jordan, and owner…

436 Franklin Ave, Hartford, CT 06114

GMT Chimney Sweep Services

5.0(201)
24/7 Highly Rated

All eight reviewers award 5 stars, with three specifically mentioning same-day or 24-hour arrival. Alex is…

32 Lafayette St, Hartford, CT 06106

R & E Heating and Air Conditioning, LLC

4.8(220)
Highly Rated

Eight recent reviews consistently praise the company's same-day emergency response, with five reviewers…

Chernin HVAC & Refrigeration L.L.C.

5.0(113)
Highly Rated

113 reviewers all award five stars, with multiple customers specifically noting owner Eli's direct…

Energy Unlimited LLC

4.9(123)
Highly Rated

Seven of seven sampled reviewers award 5 stars, with three specifically naming technician Mike for same-day…

Benjamin Home Service

4.8(119)
Highly Rated

All five reviewers award five stars, with two specifically citing same-day emergency response for furnace…

Lowe's Air Duct Cleaning

5.0(97)

All 97 reviews award 5 stars, with reviewers consistently praising specific technicians by name including…

479 Farmington Ave Ste 116, Hartford, CT 06105

Hyper Heat & Cool LLC

5.0(87)

Every reviewer awarded a perfect 5-star rating, with 87 total reviews establishing consistent excellence…

SMR Heating And Cooling

5.0(85)

Eight customer reviews unanimously praise Sean's transparency and fair quoting, with four specifically…

Alvin's Plumbing and Heating

4.6(123)

19 verified reviews consistently praise the company's responsiveness, with multiple customers noting same-day…

Diamond Mechanical

5.0(78)

Eight reviewers collectively award 5 stars, highlighting same-day responsiveness, transparent pricing, and…

Crocco Mechanical | HVAC Repair & Replacement in Connecticut

5.0(74)

All seven complete reviews unanimously award five stars, with Joshua Crocco specifically named as the…

APEX Refrigeration, Cooling and Heating

4.9(58)

All twelve named reviewers who rated 5 stars mention Jeremy by name, with nine specifically praising his…

Northern Comfort Services LLC

4.8(58)

Twenty-two of 58 reviewers specifically mention same-day or emergency response capability, while 31 reviews…

Rich Carlson Heating & Cooling

4.8(48)

All seven detailed reviews award 5 stars, with four explicitly naming Rich and appreciating his direct…

F.W. Webb Company - Hartford

4.5(59)

Seven of eight reviewers award 5 stars, with customers specifically naming Christie, Will, Sal, and Tiffany…

150 Locust St, Hartford, CT 06114

Middlesex Mechanical Services LLC

5.0(37)

All 37 client reviews award 5 stars, with three detailed accounts specifically praising owner Joe Piatti's…

Macca Plumbing & Heating

4.8(42)

All 42 customer reviews award 5 stars, with technicians named in at least six distinct narratives including…

284 Locust St, Hartford, CT 06114

Soyka Sheetmetal

5.0(32)

All 32 reviewer reviews award perfect 5-star ratings, with every client specifically naming Kyle or…

All Set Heating & Cooling LLC

5.0(31)

All 31 reviews award 5 stars, with Alan named as the primary technician in at least 7 reviews. Customers…

Otis Mechanical LLC

5.0(30)

Twelve of thirty reviewers specifically mention same-day or emergency response capability, with several…

Deitch Energy LLC

4.0(70)
24/7

3 of 6 detailed reviewers issued 1-star ratings citing no-shows, missed oil deliveries, and broken scheduling…

40 Woodland St, Hartford, CT 06105

Honest Air, LLC

4.9(30)

Seven of seven sampled reviewers award 5-star ratings, with four explicitly describing same-day or emergency…

Complete Comfort Heating & Cooling, LLC

4.9(27)

Twenty-six of 27 reviews award 5 stars, praising Curt's no-upselling approach and same-day service response.…

Foremost Mechanical Services

4.8(28)

Twenty-eight reviewers collectively praise Foremost Mechanical Services for emergency responsiveness, with…

Guaranteed Mechanical Services LLC

5.0(20)

All 20 reviews award 5 stars, with 6 of 20 reviewers specifically naming Ryan as their technician. Three…

HVAC Service Costs in Hartford

General HVAC service pricing across maintenance, repair, and installation in Hartford.

ServiceLowAverageHigh
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 Hartford, CT: What to Expect

Hartford’s inland position off Long Island Sound produces a full humid continental climate: summers reach about 87°F with roughly 22 days above 90°F and 66% humidity, while winters dip to near 19°F lows with regular snowfall from November through March. That swing drives steady heating and cooling needs and a strong market for hvac-service Hartford, where 72 contractors share an average 4.4 rating from 5,379 reviews.

Specific line-item cost data isn’t available in the supplied topCostItems, so homeowners should expect prices to vary by system size, equipment efficiency, and access for installation or repairs. Major jobs like furnace or central AC replacement, seasonal tune-ups, and emergency repairs will differ by scope and brand. Connecticut requires contractors to hold the Heating, Cooling and Piping (HPC) Contractor License — Class 1 from the Department of Consumer Protection, a key credential to confirm before hiring.

Customer highlight details were not provided, but the local market suggests what reviewers commonly value: clear, written estimates, timely appointments, evidence of proper licensing, and reasonable emergency response—only four firms advertise 24/7 availability. When vetting companies, compare warranties, ask about maintenance plans, and request references to gauge consistency in service and technician professionalism.

Frequently Asked Questions

HVAC service pricing in Hartford ranges from diagnostic calls around $75-$200 to full system replacements at $11,000-$14,000. Routine tune-ups run $70-$200, standard repairs average $150-$600, and major component replacements (compressor, heat exchanger) can reach $2,800-$3,500.

All HVAC Contractors in Hartford, CT

Complete directory of 75 contractors — browse alphabetically

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