Air Conditioning Companies in Connecticut

Comprehensive list of commercial and residential air conditioning companies in Connecticut offering installation, repair and maintenance services.

Business Listings

203 HVAC has set out to provide homeowners in CT the highest quality service from the most professional heating and air conditioning professionals in the area. From replacing a broken furnace in the middle of the winter to helping you replace your old central air unit with a more energy efficient one, we have the skills and expertise to help your home stay comfortable year round. When it comes to affordable


Superior Comfort Heating & Air Conditioning LLC are experienced HVAC Installers and repair specialists based in New Haven County CT.

  • Superb service with smiles and great patience. We have been using Superior Comfort for


Connecticut Air Systems, situated in Milford, Connecticut is your complete source for heating, air conditioning, sheet metal, air purification and humidification systems in both domestic and commercial applications. Our dedicated team of licensed, thoroughly skilled technicians install and service quality systems from Trane, Thermopride, Hallmark and other leading manufacturers.

  • Talked to Maria who answered the phone, as a cold call looking for a quote and some basic

HVAC Contractor specializing in high efficiency heating and air conditioning systems, indoor air quality products, installs, repairs and maintenance.

  • Brian installed a new furnace in my home. His work ethics are excellent, meticulous, and

Harp Home Services are available to take care of all of your heating and cooling needs. If you are a homeowner or a business owner in Hartford CT, Windsor Locks CT, or Farmington Valley CT, then you can count on Harp Home Services to provide you with only the most outstanding HVAC services, heating services and cooling services that are reliable, reputable and cost-effective.

  • Prompt, efficient, knowledgeable, professional service. These people were honest. I have

We've been delivering clients with quality heating and air conditioning services since 200 1. We provide a kind of knowledge, integrity and commitment to quality that has proved invaluable to our clients time and time again. After three decades of personal business, they are now working as one.

  • We just had a service call as part of our annual service plan and Dylan Cherry was professional,

At A. E. Olsen Company. Service America, we are proud of our years of service to the Southbury area and look ahead to assisting you with your air conditioning & heating requirements. We're glad to serve both domestic and commercial clients; our staff is prepared to assist you with the sales, service, and installation of the comfort system that is perfect for your business or home.

  • I am fortunate to have found this company on the web. I explained that our unit hadn't

Southern Connecticut's Best Residential & Commercial Heating and Air Conditioning Company Aire Serv of Southern Connecticut is a full service heating and air conditioning installation, repair and replacement specialist company. We focus on saving you money by reducing your energy bills by installing Energy Star Rated equipment properly sized for your home or business. We provide honest, reliable service

  • Chris was amazing! Our air conditioning hasn't been working for awhile and we just couldn't

A & B Mechanical, LLC is a complete and fully licensed mechanical contracting company. We provide plumbing, heating, air-conditioning, ductwork and sprinkler installations as well as design built systems, ductwork fabrication and 24 hour service for our residential, commercial and industrial customers.

  • True professionals. They show up on time, are courteous, clean, and perform high quality

Delivering superb service for homeowners, small businesses and commercial clients. We supply dependable service, quality air conditioning & heating units throughout Fairfield County. As a certified Trane Comfort Specialist we meet the highest performance standards within the industry.


Our company has over three decades of collective knowledge in the HVAC, Plumbing, Pipefitting, Fireprotection and Mechanical Insulation trades and is Fully Licensed and Insured in the State of Connecticut. We are qualified in design/build and plan & specification in the industrial, commercial and domestic markets.


We supply 24hr emergency solution for all of your plumbing, heating & cooling requirements. Since 1974, we've been delivering New Haven and Fairfield County homeowners with all of their plumbing, heating and air conditioning requirements. Your home is the largest investment you'll ever make.

  • Steve Basso Plumbing Heating and A/C is one of the best companies that you can hire to

We have been family owned & operated since 1962 delivering automatic fuel oil delivery and we're proud of our reputation for quality service and installations throughout southern Fairfield County. Fully Staffed Office - we answer the phone! We aim to provide the highest service to our clients in a individual manner.


We are your trusted source for top-quality heating, air conditioning & refrigeration HVAC-R services. Proudly serving Connecticut for over fifteen years, we're a complete service HVAC firm committed to delivering honest repair and service at an honest price.

  • Great Service Company - Answered my call with a live person unlike 3 others. Offered service

We are a complete service HVAC contractor situated in Preston, Ct. We are fully licensed and bonded in Connecticut and Rhode Island. Our service area includes Eastern Ct and Southern Rhode Island. We service all makes and models of Heat Pumps, Gas heating and Cooling equipment as well as Mitsubishi Mr. Slim Ductless systems and Unico High Velocity systems.


Tucker Mechanical, a wholly owned subsidiary of EMCOR Group., performs new construction, renovations, energy enhancement as well as service, maintenance and operation. For more than 58 years, we have designed and delivered comprehensive HVAC, plumbing, process and fire protection solutions to businesses seeking to enhance their productivity and efficiency.


For over one hundred years our company has been proudly serving our Connecticut neighbors and friends in New Haven County. We are industry leaders in fuel oil delivery, heating and central air conditioning services as well as a nice neighbor to the many clients that we service in our operating area. Our goal is to provide safe, dependable heating oil and supply superior service.


We have been servicing the Middlesex county area since 1945 when converting coal boilers to oil was the latest technology. In keeping up with the times, air conditioning and sheet metal fabrication were added to our services within the 1970's.


We are the premier home heating oil and heating and air conditioning firm serving Fairfield and lower New Haven Counties, Connecticut. For three generations our neighbors have known us for providing reliable products and services at fair prices.


We currently have proudly serviced Fairfield and surrounding counties since 1994 and look ahead to assisting you with your Heating and Air Conditioning requirements. We are glad to serve both Residential and Commercial clients; each of our experts are prepared to assist you with the Sales, Service, and Installation of the comfort system that is perfect for your business or home.

  • Preferred Air recently installed a hot water-based radiant heat floor system in our master