Best HVAC Contractors in Hartford, CT

Updated March 2026

Choosing the Best Hvac in Hartford, CT

"Best" means something different for every project. When comparing hvac companies in Hartford, CT, weigh licensing, insurance, recent customer feedback, and how clearly each company explains its pricing before you commit.

💡 Quick Tips:

Verify the company's license number on your state's contractor board website
Read recent reviews specifically from Hartford, CT customers, not just overall ratings
Ask about warranties on both parts and labor before signing a contract

1

Ugo DiGrazia Air Conditioning and Heating, Inc.

436 Franklin Ave, Hartford, CT 06114

★★★★½ 4.9 (361 reviews)

Licensed & InsuredTop Rated

Services: AC Repair · Furnace Repair · HVAC Installation · Duct Cleaning

2

Call The Bee

7 Eastview Dr, Farmington, CT 06032

★★★★½ 4.8 (3,130 reviews)

Licensed & Insured24/7 EmergencyHighly Reviewed

Services: AC Repair · Furnace Repair · HVAC Installation · Duct Cleaning

3

HARP Home Services - Air Conditioning, Heating, Plumbing, & Electrical

863 Marshall Phelps Rd, Windsor, CT 06095

★★★★½ 4.5 (4,223 reviews)

Licensed & Insured24/7 EmergencyHighly Reviewed

Services: AC Repair · Furnace Repair · HVAC Installation · Duct Cleaning

4

Degree Heating and Cooling

160 Oak St #508, Glastonbury, CT 06033

★★★★½ 4.8 (1,375 reviews)

Licensed & Insured24/7 EmergencyHighly Reviewed

Services: AC Repair · Furnace Repair · HVAC Installation · Duct Cleaning

5

Glasco Heating & Air Conditioning

56 Glendale Rd, South Windsor, CT 06074

★★★★½ 4.7 (1,186 reviews)

Licensed & Insured24/7 EmergencyHighly Reviewed

Services: AC Repair · Furnace Repair · HVAC Installation · Duct Cleaning

6

Precise HVAC Home Services

35 Wooster Ct Unit D, Bristol, CT 06010

★★★★½ 4.8 (415 reviews)

Licensed & Insured

Services: AC Repair · Furnace Repair · HVAC Installation · Duct Cleaning

7

Dynamic Heating, Cooling & Geothermal

230 S Washington St, Plainville, CT 06062

★★★★½ 4.8 (273 reviews)

Licensed & Insured

Services: AC Repair · Furnace Repair · HVAC Installation · Duct Cleaning

8

J.M. Curtis Energy Solutions

88 Hoskins Rd, Bloomfield, CT 06002

★★★★½ 4.9 (68 reviews)

Licensed & InsuredTop Rated

Services: AC Repair · Furnace Repair · HVAC Installation · Duct Cleaning

9

SM Mechanical Services LLC

75 Naubuc Avenue Rear Unit, Glastonbury, CT 06033

★★★★½ 4.8 (633 reviews)

Licensed & Insured24/7 Emergency

Services: AC Repair · Furnace Repair · HVAC Installation · Duct Cleaning

10

Hometown Heating & Cooling LLC

10 a Herman Dr, Simsbury, CT 06070

★★★★½ 4.9 (93 reviews)

Licensed & InsuredTop Rated

Services: AC Repair · Furnace Repair · HVAC Installation · Duct Cleaning

About These Listings

Provider details on this page come from public business information and each provider's own website. Inclusion here is not an endorsement, and the order shown is not a guarantee of quality. Before hiring, verify licensing, insurance, and pricing directly with the company — request written quotes and confirm credentials with your state or local licensing board.

See something out of date? Contact us.