The Best HVAC in New Haven, CT

Compare the highest-rated hvac professionals in New Haven, Connecticut. All contractors are licensed, insured, and verified through our rigorous screening process.

#1

Mariano's HVAC Services

4.8
(142 reviews)
Verified

Family-owned and operated HVAC specialist serving New Haven for over 35 years. Expert in installing high-efficiency Carrier and Trane systems specifically calibrated for Connecticut's humid summers and cold winters. Offers comprehensive maintenance plans to optimize system performance and longevity.

845 Orange Street, New Haven, CT 06511

Specialties & Features

24/7 Emergency Service
High-Efficiency System Installation
Geothermal Systems
NATE-Certified Technicians

Business Information

Years in Business:35 years
Licensed:Yes
Insured:Yes
#2

Climate Control Pros

4.7
(118 reviews)
Verified

Full-service HVAC contractor specializing in energy-efficient solutions for both historic homes and modern buildings throughout New Haven. Strong expertise in ductwork design and sealing to address common inefficiencies in older New England homes. EPA-certified for refrigerant handling and Energy Star partner.

1221 Chapel Street, New Haven, CT 06511

Specialties & Features

Ductwork Design & Sealing
Energy Efficiency Audits
Historic Home HVAC
Heat Pump Installation

Business Information

Years in Business:22 years
Licensed:Yes
Insured:Yes
#3

New Haven Heating & Cooling

4.5
(96 reviews)
Verified

Reliable local HVAC provider known for rapid response times and emergency services. Specializes in furnace repair and replacement crucial for Connecticut winters, along with AC tune-ups before the humid summer months. Offers flexible financing options for system replacements.

500 Forbes Avenue, New Haven, CT 06512

Specialties & Features

Emergency Furnace Repair
AC Maintenance Plans
24/7 Service
Boiler Systems

Business Information

Years in Business:18 years
Licensed:Yes
Insured:Yes

Why These Are the Top HVAC Contractors in New Haven

New Haven's HVAC market services a mix of historic Yale University buildings, residential homes, and commercial properties. The humid continental climate creates strong seasonal demand for both cooling (May-Sept) and heating (Oct-Apr) services. Many older homes require specialized ductwork solutions and energy efficiency upgrades. The market trends toward high-efficiency systems due to Connecticut's energy costs, with increasing interest in heat pump technology for year-round climate control.

High Ratings

4.7+ star average from verified customer reviews

Fully Licensed

All contractors are properly licensed and insured

Proven Experience

10+ years average experience in the industry

Local Experts

Familiar with New Haven regulations and climate

Frequently Asked Questions About HVAC in New Haven

Get answers to common questions about hvac services in New Haven, Connecticut.

1What is the typical cost range for replacing a central air conditioning system in a New Haven home?

For a standard, single-family home in New Haven, a full AC replacement typically ranges from $5,000 to $12,000. The final cost depends heavily on the system's size (tonnage), efficiency rating (SEER), and the complexity of the installation in your specific home. Given Connecticut's humid summers, investing in a properly sized, higher-SEER unit (16+) can provide better dehumidification and long-term energy savings, especially with Eversource's available rebates for high-efficiency models.

2When is the best time of year to schedule HVAC maintenance or replacement in New Haven?

The optimal times are during the shoulder seasons—late spring (April-May) before the summer heat and humidity hit, and early fall (September-October) before winter's cold. Scheduling during these periods ensures your system is ready for peak demand and provides much greater availability for technicians. Waiting until the first heatwave or cold snap in New Haven often leads to emergency service calls, longer wait times, and potentially higher costs.

3Are there any local regulations or incentives in Connecticut I should know about when upgrading my HVAC system?

Yes, Connecticut has specific regulations and valuable incentives. All HVAC contractors must be licensed by the State of Connecticut (License Type S1 or S2). Furthermore, the state-mandated "Energy Conservation Code" influences system specifications for replacements. Critically, homeowners should explore rebates from the Energize Connecticut program, administered by Eversource and UI, which offer significant cash-back for installing high-efficiency heat pumps, furnaces, and air conditioners.

4How do I choose a reliable HVAC contractor in the New Haven area?

Always verify the contractor holds a valid Connecticut HVAC license and carries both liability and workers' compensation insurance. Look for established local companies with strong reviews on platforms like Google and Nextdoor, as they understand the specific challenges of New Haven's older home stock. A reputable provider will perform a detailed Manual J load calculation to correctly size your system, not just match the old unit's size, and will provide a clear, written estimate.

5My older New Haven home has a boiler and radiators. Is it worth switching to a forced-air system with central air?

This is a major project common in historic New Haven homes. While a boiler provides excellent, even heat, adding central air via ductwork can be invasive and costly. A highly effective and less disruptive alternative is installing a ductless mini-split heat pump system. These provide extremely efficient zoned heating and cooling, are ideal for Connecticut's climate, qualify for state rebates, and avoid the need to install extensive new ducts in your existing walls and floors.