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Last Updated: February 25, 2025
On average, 55% of the energy used in American homes is for heating and cooling, according to the U.S. Department of Energy. In Colchester, you're probably looking to reduce your energy expenses and save money on your bills.
A talented HVAC contractor can get your system into shape for a reasonable price, saving you money while keeping your home comfortable. That's why we've assembled this guide to the top HVAC companies in Colchester.

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Informative resources
Prompt service delivery
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Our Rating
User Rating
Free quotes
Clear pricing policy
Reliable customer support
Prompt service delivery
Informative resources
Services Offered

Our Rating
User Rating
Clear pricing policy
Informative resources
Reliable customer support
Free quotes
Services Offered

Our Rating
User Rating
Reliable customer support
Clear pricing policy
Prompt service delivery
Informative resources
Free quotes
Services Offered

Our Rating
User Rating
Informative resources
Free quotes
Clear pricing policy
Services Offered

Our Rating
User Rating
Reliable customer support
Prompt service delivery
Clear pricing policy
Services Offered

Our Rating
User Rating
Informative resources
Free quotes
Reliable customer support
Clear pricing policy
Prompt service delivery
Services Offered

Our Rating
User Rating
Free quotes
Prompt service delivery
Clear pricing policy
Informative resources
Services Offered

Our Rating
User Rating
Reliable customer support
Free quotes
Prompt service delivery
Clear pricing policy
Services Offered

Our Rating
User Rating
Clear pricing policy
Reliable customer support
Free quotes
Services Offered
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:
A malfunctioning or aging HVAC system probably needs attention from a professional who can make repairs or install a new unit. Keep an eye out for these common signs that your HVAC needs service:
Arrange an inspection if you notice any of these problems. A local technician can evaluate your system, detect problems, and figure out whether you need repairs or a new HVAC unit.
The price of HVAC installation or maintenance varies depending on the type of unit you have. Common types of HVAC units include the following:
The cost of HVAC maintenance also varies depending on the kind of work you're having done. HVAC systems are complex and can require different kinds of maintenance. The cost of some common repairs is as follows:
| HVAC Unit Type | Cost | |
|---|---|---|
| Split | $1,871-$4,769 | |
| Hybrid Split | $3,791-$6,984 | |
| Heat Pump | $2,935-$29,908 | |
| Packaged Heating and Air | $246-$409 |
It's important to fix or swap out your HVAC components when they become damaged, but it can also be expensive. Fortunately, there are some steps you can take to slow the wear and tear on your HVAC.
| Service | Cost | |
|---|---|---|
| Filter Replacement | $61-$164 | |
| Condensor Cleaning | $1,228-$3,684 | |
| Thermostat Repair | $82-$205 | |
| Ductwork Cleaning | $393-$982 |
Knowing the right things to look for in an HVAC company is key for a smooth repair or installation. Picking an established business with certified technicians gives you assurance your HVAC system will deliver consistent coolig and heating year-round.
Contact at least three HVAC companies for quotes. Explain the issues and have technicians visit to inspect your HVAC system if possible. Compare the providers' explanations, solutions, estimated costs, timeframes, and warranties. Avoid contractors that pressure you or demand payment upfront.
Look for an HVAC company that employs qualified technicians with the necessary training and licenses. In all states, HVAC contractors need to obtain a Section 608 Technician Certification from the Environmental Protection Agency (EPA). This certification is required for any individual who helps "maintain, service, repair or dispose of equipment that could release refrigerants into the atmosphere." Contractors must pass an exam (the type of exam depends on the type of equipment they intend to work with) to be certified by the EPA. All other licensing requirements are handled by the state.
All individuals who work on HVAC systems in Connecticut 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 for education and work experience. You should also check a company's reviews and complaints on sites such as Yelp, Google Reviews, and the Better Business Bureau (BBB). Pick a company with great feedback and good customer testimonials.
Make sure you understand the details of your project before starting. When getting HVAC repairs, have your provider detail which parts need replacement and why. Confirm that your technician will clean and test the system after the repair to verify that everything works. When replacing your HVAC, request that the company explain the new estimated installation time, brand, energy efficiency, model, and features. Before work starts, make sure you understand the process your provider will use to size the new HVAC system appropriately for your home and what the price will be.
Reputable HVAC companies back their services with warranties. Compare warranties from different companies, remembering that more comprehensive coverage is better. Look for the provider that offers the most coverage for a reasonable price.
Get written bids before beginning HVAC work. The quote should include costs for both materials and labor. Review all terms carefully before signing.
You should have your HVAC system inspected about twice annually. At the time of the inspection, your technician will inform you what services are required. You should also have your system inspected if you start noticing issues such as strange noises, leaks, or unusual smells. If your system has ductwork, it should be inspected every few years.
Generally, it's smart to schedule inspections in the spring and fall, as technicians tend to be less busy at these times. This also helps get your system ready for the summer and winter, when it probably sees the most use.
You can save energy throughout the year by reducing the amount of work it takes for your HVAC system to maintain the temperature of your home. During all seasons, keep your thermostat as close to the outside temperature as you can, and try to adjust it only a few degrees at once. You may also consider installing a smart thermostat.
Generally, HVAC installation or replacement takes between one and three days for the entire system. Installing or replacing an air conditioning unit or a furnace may take anywhere from a few hours up to two days. The exact amount of time will vary depending on factors like the size of your home, how easily accessible different areas are, and whether your technician runs into any problems.
For a 2,000-square-foot home, you should look for around 2.5 to 5 tons of air conditioning capacity. If your home is larger than 1,000 square feet, central air will usually be more effective for cooling than window units.
For a 2,000-square-foot home, you should also look for a furnace that is between 50,000 and 80,000 BTUs (British thermal units).
There are several ways you can make your HVAC system more energy-efficient:
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