10 Best HVAC Companies in Waterbury, CT

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Last Updated: February 25, 2025

On average, 55% of energy use in American homes goes toward heating and cooling, according to the U.S. Department of Energy. Since such a significant portion of your utility bill goes toward heating and cooling, you'll want to make sure the HVAC system in your Waterbury home is functioning properly.

Our guide to Waterbury's top HVAC companies can help you get your system into top shape, allowing you to keep comfortable while saving money.

Top 10 Best HVAC Companies in Waterbury

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Air Specialties Air Conditioning & Heating Inc

Air Specialties Air Conditioning & Heating Inc Logo

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25 Spring St, West Haven, CT 06516 (203) 533-4012 airspecialtiesac.com

Prompt service delivery

Clear pricing policy

Free quotes

Reliable customer support

Informative resources

Services Offered

Ac repair
Ductless
Boiler installation
Furnace installation
Emergency services
Ventilation
Boiler repair
Inspection
Ac installation
Indoor air quality
Furnace repair
Filtration
Maintenance

HARP Home Services - Air Conditioning, Plumbing & Heating

HARP Home Services - Air Conditioning, Plumbing & Heating Logo

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863 Marshall Phelps Rd, Windsor, CT 06095 (860) 935-8995 harpcanhelpyou.com

Reliable customer support

Clear pricing policy

Prompt service delivery

Informative resources

Free quotes

Services Offered

Furnace installation
Boiler repair
Filtration
Inspection
Furnace repair
Boiler installation
Ac installation
Indoor air quality
Smart home integration
Ductless
Ac repair
Emergency services

M&R Mechanical Services

M&R Mechanical Services Logo

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1050 Bridgeport Ave F3, Milford, CT 06460 (203) 951-5207 mandrmechanical.com

Informative resources

Clear pricing policy

Reliable customer support

Free quotes

Services Offered

Duct cleaning
Ac installation
Boiler repair
Ductless
Furnace installation
Boiler installation
Indoor air quality
Ventilation
Furnace repair
Filtration
Ac repair
Emergency services
Maintenance

Dynamic Mechanical

Dynamic Mechanical Logo

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User Rating

230 S Washington St Unit #26, Plainville, CT 06062 (860) 864-4327 dynamichvac.net

Free quotes

Clear pricing policy

Informative resources

Services Offered

Emergency services
Furnace repair
Radiant heating
Ac installation
Boiler installation
Indoor air quality
Boiler repair
Inspection
Ductless
Ventilation
Maintenance
Furnace installation
Duct cleaning
Ac repair

Aire Serv of Shelton

Aire Serv of Shelton Logo

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User Rating

41 Clifton Ave, Ansonia, CT 06401 (203) 717-9527 aireserv.com

Informative resources

Prompt service delivery

Reliable customer support

Clear pricing policy

Free quotes

Services Offered

Emergency services
Ac repair
Maintenance
Boiler installation
Furnace repair
Boiler repair
Ac installation
Inspection
Duct cleaning
Filtration
Indoor air quality
Furnace installation

BELUGA HEATING-AIR-ELECTRICAL

BELUGA HEATING-AIR-ELECTRICAL Logo

Our Rating

User Rating

577 N Main St Suite 301, Brewster, NY 10509 (845) 403-0985 belugahvac.com

Informative resources

Reliable customer support

Clear pricing policy

Free quotes

Services Offered

Furnace repair
Ac installation
Ventilation
Boiler installation
Ductless
Ac repair
Inspection
Maintenance
Furnace installation
Emergency services
Indoor air quality
Radiant heating
Boiler repair

Link Mechanical Services, Inc.

Link Mechanical Services, Inc. Logo

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60 Production Ct, New Britain, CT 06051 (959) 600-6345 justcalllink.com

Clear pricing policy

Free quotes

Informative resources

Prompt service delivery

Services Offered

Maintenance
Radiant heating
Furnace repair
Inspection
Filtration
Zoning systems
Ac repair
Boiler repair
Indoor air quality
Boiler installation
Furnace installation
Ductless
Ac installation

123 HVAC

123 HVAC Logo

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User Rating

1992 Commerce St Suite 223, Yorktown Heights, NY 10598 (914) 245-6600 123hvac.co

Informative resources

Free quotes

Clear pricing policy

Prompt service delivery

Reliable customer support

Services Offered

Ac installation
Maintenance
Boiler installation
Ductless
Ac repair
Radiant heating
Ventilation
Emergency services
Furnace repair
Furnace installation

Appolo Heating

Appolo Heating Logo

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User Rating

95 Airport Dr, Wappingers Falls, NY 12590 (845) 261-1216 appoloheating.com

Reliable customer support

Prompt service delivery

Informative resources

Services Offered

Radiant heating
Ductless
Boiler installation
Ac installation
Ventilation
Filtration
Furnace repair
Maintenance
Duct cleaning
Ac repair
Emergency services
Furnace installation
Indoor air quality

JP DUNN HEATING & COOLING, LLC

JP DUNN HEATING & COOLING, LLC Logo

Our Rating

User Rating

701 Northfield Rd, Northfield, CT 06778 (860) 283-1167 jpdunnhvac.com

Clear pricing policy

Reliable customer support

Free quotes

Services Offered

Indoor air quality
Ventilation
Ac repair
Ac installation
Boiler repair
Furnace installation
Ductless
Furnace repair
Filtration
Maintenance
Emergency services
Boiler installation
Today's Homeowner Ranking Methodology

Today's Homeowner looks at dozens of datapoints on hvac companies to come up with our data-driven rankings. It's not possible for a company to pay for preferential treatment in our rankings. We look at the following key factors in determining who should top our list:

  • Company Experience
  • Real User Reviews
  • Company Reputation
  • Accreditations and Licenses
  • Service Area
  • Customer Service
Have questions about our methodology or company ratings? Reach out to FindAPro@TodaysHomeowner.com.

Signs You May Need HVAC Repair or Replacement

An HVAC system that's not working properly or old likely needs professional attention for maintenance or replacement. Watch for these signs that your system needs service:

  • Frequent breakdowns and need for repairs
  • Strange noises when turning on
  • Uneven heating/cooling or poor air circulation
  • Thermostat malfunctions or temperature control issues
  • Cracking, corrosion, or rust
  • Unusually high energy bills
  • Refrigerant leaks
  • An HVAC system that's over 15 years old

Book an inspection if you notice any of these problems. A local technician can inspect your system, detect problems, and decide whether you need to fix or replace your HVAC.

Cost of HVAC Installation and Maintenance in Waterbury

What you spend on HVAC installation or maintenance is determined by your system style. Common HVAC unit styles include the following:

  • Split or mini-split: If your home's ductwork isn’t suited for a central HVAC system, you likely have a split or mini-split system. Split systems have internal units in each room to regulate temperature. These indoor units all connect to an outdoor unit.
  • Hybrid split: A hybrid split HVAC unit operates similarly to a regular split system. It provides flexibility by having the option to draw on either electricity or gas for energy.
  • Heat pump: Heat pumps transfer warm and cool air between your home and the outdoors. They don't create their own heating and cooling, so they work more efficiently in more temperate climates.
  • Packaged heating and air: Packaged HVAC systems are a great choice for smaller homes. They have a single cooling and heating unit, typically in an attic or basement. This unit is often small, energy-efficient, and easy to maintain.

HVAC maintenance costs vary depending on the particular service needed. HVAC systems are complex and can require different maintenance services. Prices for some common services are as follows:

HVAC Unit TypeCost
Split$1,930-$4,921
Hybrid Split$3,911-$7,206
Heat Pump$3,029-$30,860
Packaged Heating and Air$253-$422

Ways to Save Money on HVAC Costs

Fixing your HVAC by repairing or replacing parts when needed is important, but can be costly. Fortunately, there are steps you can take to slow the wear and tear on your system.

  • Change the position of your blinds seasonally. During winter, leave your blinds open so your home benefits from passive solar heat. In summer, keep blinds shut to block out heat. Doing both reduces the amount of work your HVAC system must perform.
  • Keep your system clean. Keeping your grills, indoor evaporator coil, condenser fan blades, and ductwork clean enables your HVAC system to function properly and lowers your risk of mold. The National Air Duct Cleaners Association recommends cleaning your HVAC when you notice things starting to get dirty.
  • Monitor for potential problems. Monitoring your system for issues — for example, by checking your thermostat and energy bills regularly — helps you get ahead of problems before they get too expensive.
  • Change filters regularly. Replacing or cleaning your air filters every 1–3 months helps air flow efficiently through your HVAC system. You should also try to prevent dirt and debris from building up around the external parts of your system.
ServiceCost
Filter Replacement$63-$169
Condensor Cleaning$1,267-$3,801
Thermostat Repair$84-$211
Ductwork Cleaning$405-$1,014

How To Choose a Local HVAC Company

Finding the right HVAC company is crucial for a smooth installation or repair. An experienced, credentialed HVAC contractor gives you confidence your system can provide consistent heating and air conditioning year-round.

Compare Multiple Bids

Contact at least three HVAC providers for quotes. Describe your issues and schedule an in-person inspection if possible. Compare providers' diagnoses, suggested repairs, estimated costs, warranties, and timeframes. Avoid providers that pressure you or demand upfront payment.

Check Credentials

Choose an HVAC company with skilled technicians who have appropriate licensing and experience. In all states, HVAC contractors have federal requirements set by the Environmental Protection Agency (EPA). To obtain the EPA Section 608 Technician Certification, individuals must pass an exam (the type of exam depends on what kind of equipment they intend to work with). Section 608 certification is required for all technicians who "maintain, service, repair or dispose of equipment that could release refrigerants into the atmosphere." All other licensing requirements are handled at the state level.

All individuals in Connecticut who work on HVAC systems must be licensed by the Connecticut State Department of Consumer Protection. An individual can be licensed as a journeyperson or a contractor. Both license types have requirements related to education and work experience. Always check a company's reviews and complaints with organizations such as Google Reviews, Yelp, and the Better Business Bureau (BBB). You want to hire a company with glowing reviews and stories of positive service experiences.

Understand Work Details

It’s important to understand what the work process is going to look like. For HVAC repairs, the company should detail the exact parts that need replacement and why. Confirm that your technician will clean and test the full system afterward to guarantee everything is working correctly. When replacing your HVAC, request that the installation company describe the new model, energy efficiency, brand, features, and estimated installation time. Before work starts, ask about the process your provider will use to properly size the new system for your home and how much it will cost.

Compare Warranties

Reliable HVAC companies provide warranties for their work. The broader the coverage, the better, so make sure to compare warranties between providers. Choose the one that offers the best coverage at a reasonable cost.

Get Quote in Writing

Get written estimates before starting any HVAC work. The quote should include costs for both labor and materials. Review all terms carefully before signing.

Frequently Asked Questions About HVAC in Waterbury, CT

Generally, your HVAC system should be inspected twice a year. After that inspection, your HVAC technician will tell you what services are required. You should also have an inspection if you notice any new issues, like unusual smells, strange noises, or leaks. If you have ductwork in your home, it should be serviced every few years.

The best times of the year to have an HVAC inspection are the spring and fall. Technicians are often less busy during these times, so it will be easier to get an appointment. This also ensures that your system is ready for the summer and winter, the times of the year when it gets the most use.

You can save energy throughout the year by making it easier for your HVAC system to maintain your home's temperature. During all seasons, keep your thermostat as close to the outside temperature as possible, and try to adjust it only a few degrees at a time. You may also consider a smart thermostat.

Generally, HVAC installation or replacement takes one to three days for the entire system. Installing or replacing an air conditioning unit or a furnace can take as little as half a day or as much as two days. The exact amount of time will vary depending on things like the size of your house, how easily accessible different areas are, and whether your technician finds any problems.

For a 2,000-square-foot home, look for a furnace that's between 50,000 and 80,000 BTUs (British thermal units).

For a 2,000-square-foot home, you'll also want to look for an air conditioning unit with between 2.5 and 5 tons of capacity. Typically, if your home is over 1,000 square feet, central air will be more effective than window air conditioning units.

There are a number of ways you can make your HVAC system more energy-efficient:

  • Keep your air ducts clean and change or clean your air filters regularly.
  • Have regular inspections to take care of problems as they arise.
  • Keep your attic well-ventilated and make sure all doors and windows are well-sealed.
  • Install a smart thermostat. If you don't want to or can't buy one, try to keep the temperature indoors as close to the outside temperature as is comfortable.
  • When replacing part of your system, see if there are Energy Star-certified or similar environmentally friendly options.

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