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Last Updated: February 25, 2025
On average, Americans devote 55% of their energy usage to heating and cooling their home, according to the U.S. Department of Energy. In Cromwell, you're likely looking to reduce your energy expenses and save money on your bills.
Our list of Cromwell's top HVAC companies can help you get your system into its best shape ever, allowing you to keep comfortable while saving money.

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

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

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

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

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

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

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

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

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

Our Rating
User Rating
Reliable customer support
Clear pricing policy
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:
If your HVAC system is broken or getting old, it likely needs servicing or replacement from an HVAC company. Look for these signs your system needs service:
If you notice any of the above, it's wise to have a local HVAC technician inspect your system. They can pinpoint problems and let you know whether repair or full HVAC replacement is required.
What you spend on HVAC installation or maintenance depends on your system type. Common HVAC unit styles include the following:
HVAC expenses vary based on the services needed. HVAC systems are complex and may need several types of maintenance. Prices for common jobs are as follows:
| HVAC Unit Type | Cost | |
|---|---|---|
| Split | $1,868-$4,762 | |
| Hybrid Split | $3,785-$6,974 | |
| Heat Pump | $2,931-$29,865 | |
| Packaged Heating and Air | $245-$409 |
Taking care of necessary HVAC repairs and replacements when needed is important, but can be expensive. Luckily, there are steps you can take to slow the wear and tear on your system.
| Service | Cost | |
|---|---|---|
| Filter Replacement | $61-$164 | |
| Condensor Cleaning | $1,226-$3,679 | |
| Thermostat Repair | $82-$204 | |
| Ductwork Cleaning | $392-$981 |
Knowing what makes a trustworthy HVAC company is crucial for a successful installation or repair. Hiring an experienced, credentialed HVAC contractor gives you confidence your system can provide reliable heating and air conditioning year-round.
Get quotes from three or more HVAC companies. Explain your issues and ask if technicians can inspect your system in person. Compare each contractor's diagnoses, recommended solutions, estimated cost, timeline, and warranties. Avoid companies that pressure you or demand payment before work.
When hiring an HVAC company, choose one with technicians that have the proper training, licenses, and experience. In all states, HVAC contractors must obtain a Section 608 Technician Certification from the Environmental Protection Agency (EPA). This certification is required for all technicians who "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 what kind of equipment they intend to work with) to be certified by the EPA. All other licensing requirements are handled on a state-by-state basis.
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 related to education and work experience. Reviewing feedback on Yelp, the Better Business Bureau (BBB), Google Reviews, and similar sites can assist your decision as well. Choose a company with great reviews and reports of positive customer experiences.
Always make sure you know the details of any project. When HVAC repairs are required, your provider should list which parts need replacement and why. Confirm that your technician will clean and test the system after repairs are completed to verify that it’s working properly. When replacing your HVAC, request that the company explain the new brand, model, energy efficiency, estimated installation time, and features. Before signing a contract, be 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.
Reliable HVAC companies provide warranties for their work. Broader coverage is better, so make sure to compare warranties between companies. Choose the one that provides the most comprehensive coverage at a reasonable cost.
Always get HVAC bids in writing before work begins. A thorough quote covers costs for both labor and materials. Ensure that you understand all terms before signing the contract.
Typically, your HVAC system should be inspected twice a year. After that inspection, your technician will tell you what, if any, services are required. You should also call a technician if you notice any new issues, like leaks, unusual smells, or strange noises. If your home has ductwork, it should be serviced every few years.
The best times 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, when it typically gets the most use.
You can save energy throughout the year by reducing the amount of power your HVAC system uses 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 once. You may also consider getting a smart thermostat.
Generally, whole-system HVAC installation or replacement takes between one and three days. Installing or replacing a furnace or air conditioning unit may take anywhere from a few hours up to two days. The exact amount of time will be based on things like the size of your house, how easily accessible different parts of the system are, and whether your technician runs into any problems.
Usually, HVAC financing is offered through a third-party lender. If your HVAC company doesn't offer these options, you might consider taking out your own loan. Be sure to speak with a financial advisor and your HVAC company to find out what options are available to you and appropriate for your situation.
There are a number of ways you can make your HVAC system more energy-efficient:
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