Top 10 Commercial Hvac in Hartford, CT
The best commercial HVAC companies in Hartford, CT for 2026 include Ugo DiGrazia Air Conditioning and Heating, Inc. (4.9), Call The Bee (4.8), HARP Home Services - Air Conditioning, Heating, Plumbing, & Electrical (4.5). All service rooftop units, VRF systems, chillers, and commercial heating and cooling equipment.
Ugo DiGrazia Air Conditioning and Heating, Inc.
Glasco Heating & Air Conditioning
HARP Home Services - Air Conditioning, Heating, Plumbing, & Electrical
Sid Harvey Industries - HVAC/R Specialist Distributor
SM Mechanical Services LLC
East Hartford Heating & Cooling
J.M. Curtis Energy Solutions
Johnstone Supply
Ak Mechanical Contractors LLC
Action Air Systems, Inc.
How We Ranked These Hartford Pros
Our rankings are based on a weighted evaluation of five key factors:
- Licensing & Insurance — All listed businesses hold active state licenses verified through official databases.
- Customer Reviews — We aggregate ratings from Google, Yelp, and the BBB, weighting recency and review volume.
- Response Time — Companies offering same-day or 24/7 emergency service score higher.
- Pricing Transparency — Businesses who offer flat-rate pricing or free estimates rank above those with opaque billing.
- Experience & Longevity — Years serving the Hartford market and breadth of services factor into overall reliability.
Rankings are reviewed quarterly. Have a correction? Contact us.
Frequently Asked Questions
How much does commercial HVAC cost in Hartford?
Commercial HVAC costs vary widely: rooftop unit replacement $3,000-$15,000, VRF system $15,000-$50,000+, chiller replacement $50,000-$200,000+. Maintenance contracts run $200-$2,000/month depending on system size.
How often should commercial HVAC be maintained?
Monthly filter changes, quarterly inspections, and semi-annual comprehensive tune-ups. Many commercial systems require more frequent maintenance than residential due to continuous operation and regulatory requirements.
What is a VRF system?
Variable Refrigerant Flow — a commercial system where one outdoor unit serves multiple indoor units with individual temperature control. Extremely efficient for office buildings, hotels, and mixed-use spaces.