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Last Updated: February 25, 2025
According to the U.S. Department of Energy, approximately 55% of the energy used in American homes is used for heating and cooling. Since such a significant portion of your utility bill goes toward cooling and heating, you'll want to ensure that the HVAC system in your Kennett home is functioning optimally.
The right 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 best HVAC companies in Kennett.

Our Rating
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Informative resources
Services Offered

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

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

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

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

Our Rating
User Rating
Reliable customer support
Free quotes
Services Offered

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

Our Rating
User Rating
Informative resources
Free quotes
Services Offered

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

Our Rating
User Rating
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 faulty or aging HVAC system probably needs professional attention from a technician who can make repairs or install a new unit. Look out for these common signs that your HVAC needs service:
If you're experiencing any of these HVAC issues, you should have a technician inspect your system. A local professional can diagnose problems and decide whether repairing or getting a new HVAC unit is the best solution.
HVAC installation or maintenance costs change depending on your system. Common HVAC unit types include the following:
HVAC maintenance costs vary depending on what services are needed. HVAC systems are complicated and may require different kinds of maintenance. Prices for common services are as follows:
| HVAC Unit Type | Cost | |
|---|---|---|
| Split | $1,864-$4,751 | |
| Hybrid Split | $3,776-$6,957 | |
| Heat Pump | $2,924-$29,793 | |
| Packaged Heating and Air | $245-$408 |
It's important to repair or replace your HVAC system when it's broken, but it can also be expensive. Luckily, there are steps you can take to slow the wear and tear on your system.
| Service | Cost | |
|---|---|---|
| Filter Replacement | $61-$163 | |
| Condensor Cleaning | $1,223-$3,670 | |
| Thermostat Repair | $82-$204 | |
| Ductwork Cleaning | $391-$979 |
Knowing what makes a trustworthy HVAC company is key for a smooth installation or repair. An experienced, credentialed HVAC contractor gives you confidence your system can provide reliable heating and air conditioning year-round.
Request estimates from three or more HVAC companies. Explain your issues and ask if specialists can inspect your system in person. Compare each provider's diagnoses, recommended solutions, estimated cost, warranties, and timeline. Avoid providers that pressure you or demand payment before work.
Choose an HVAC company with skilled technicians who have appropriate licensing and experience. HVAC contractors in all states have federal requirements set by the Environmental Protection Agency (EPA). To obtain the EPA Section 608 Technician Certification, an individual must pass an exam (the specific exam depends on the kind of equipment they plan 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 on a state-by-state basis.
There are no state-level licensing requirements for HVAC technicians in Missouri; however, most municipalities have local requirements. It's in your best interest to check with your local government to understand requirements for licenses like HVAC Contractor or HVAC Journeyman Contractor. You can also check that a company holds a valid business license. Checking reviews on the Better Business Bureau (BBB), Yelp, Google Reviews, and similar sites can assist your decision. Choose a company with stellar reviews and stories of positive customer experiences.
Always make sure you understand what a company’s process is like. When HVAC repairs are needed, ask your provider to explain which parts require replacement and explain why. Confirm that your technician will clean and test the full system after finishing the work to guarantee proper operation. For replacement, ask your contractor to explain the new HVAC system features, estimated installation time, brand, model, and energy efficiency. Before signing a contract, you should understand how your provider will size the system appropriately for your home and the price you'll pay.
Good HVAC companies offer warranties on service and installations. The more complete the coverage, the better. Review warranty details between companies and pick the one that offers the most comprehensive protection for a fair price.
Always get HVAC bids in writing before work begins. A comprehensive quote covers costs for both materials and labor. Ensure that you agree to all terms before signing the contract.
You should have your HVAC system inspected about twice annually. Following an inspection, your technician will inform you if any services are required. You should also have your system inspected if you start noticing issues such as unusual smells, strange noises, or leaks. If your system has ductwork, it should be inspected every few years.
Normally, it's a good idea to have your HVAC system inspected in the spring and fall, as these times tend to be less busy. This also helps get your system ready for the summer and winter, when it likely sees the most use.
You can save energy during the summer by reducing the amount of power your HVAC system uses to keep your home cool. Keep your thermostat temperature as close to the outside temperature as you can, and try to avoid making drastic changes in temperature all at once. Keep your roof well-maintained and seal any door or window leaks to help keep cool air in. Similarly, make sure your attic is well ventilated to avoid trapping excess heat in your home.
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 depend on factors like the size of your house, how easily accessible different sections are, and whether your technician finds any problems.
For a 2,000-square-foot home, you should look for a furnace that's between 50,000 and 80,000 BTUs (British thermal units). In Kennett, you may be able to make do with a furnace on the lower end of this range.
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. In Kennett, you'll likely need a unit on the higher end of this range. Typically, if your home is larger than 1,000 square feet, central air will be more effective than window air conditioning units.
There are several ways you can make your HVAC system more energy-efficient:
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