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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 Department of Energy. With so much money spent on cooling and heating your Brentwood home, you want to ensure that you're getting the best return on your investment.
Our guide to the top HVAC companies in Brentwood can help you save money by getting your HVAC system installed, repaired or replaced for a fair price by a skilled worker.

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User Rating
Free quotes
Prompt service delivery
Reliable customer support
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Services Offered

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

Our Rating
User Rating
Informative resources
Reliable customer support
Services Offered

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

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

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

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

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

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

Our Rating
User Rating
Clear pricing policy
Reliable customer support
Informative resources
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:
An HVAC system that's malfunctioning or outdated likely needs professional attention for maintenance or replacement. Watch for these signs that your system needs service:
If you notice any of the above, have a local HVAC technician inspect your system. They can identify problems and recommend whether repair or full HVAC replacement is the better solution.
What you spend on HVAC installation or maintenance varies based on your system type. Common HVAC unit styles include the following:
HVAC maintenance prices differ based on the specific services needed. HVAC systems can be complicated and potentially require a number of services. Costs for typical jobs are as follows:
| HVAC Unit Type | Cost | |
|---|---|---|
| Split | $1,987-$5,064 | |
| Hybrid Split | $4,025-$7,416 | |
| Heat Pump | $3,117-$31,760 | |
| Packaged Heating and Air | $261-$435 |
Fixing your HVAC by repairing or replacing parts when needed is important, but can be expensive. Luckily, there are actions you can take to reduce gradual wear and tear on your system.
| Service | Cost | |
|---|---|---|
| Filter Replacement | $65-$174 | |
| Condensor Cleaning | $1,304-$3,912 | |
| Thermostat Repair | $87-$217 | |
| Ductwork Cleaning | $417-$1,043 |
Knowing what to look for in an HVAC company is important for a successful project. Look for an experienced, licensed contractor that can give you peace of mind and make sure your system provides reliable heating and air conditioning for your home.
Request estimates from three or more HVAC providers. Explain your issues and ask if technicians can inspect your system in person. Review each contractor's diagnoses, recommended solutions, estimated cost, warranties, and timeline. Avoid providers 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 need to obtain a Section 608 Technician Certification from the Environmental Protection Agency (EPA). This certification is required for all contractors 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 by the state.
There are no state-level licensing requirements for HVAC technicians in Missouri; however, most municipalities have local requirements. Be sure to check with your local government to understand requirements for licenses like HVAC Contractor or HVAC Journeyman Contractor. You can also confirm that a company holds a valid business license. You should also read reviews and complaints on sites like Google Reviews, the Better Business Bureau (BBB), and Yelp. Pick a company with positive reviews and reports of fantastic customer experiences.
Make sure you know the details of your project before starting. If HVAC repairs are required, have your provider detail which parts require replacement and why. Confirm that your technician will clean and test the system after the repair to ensure that everything works. When replacing your HVAC, have the contractor explain the new features, estimated installation time, brand, energy efficiency, and model. Before signing a contract, make sure you understand how your provider will determine the right system size for your home and what the price will be.
Reputable HVAC companies stand behind their work with warranties. Look at warranties from different companies, remembering that broader coverage is better. Look for the provider that offers the most coverage for a fair price.
Get a written quote before HVAC work begins. A full quote includes both labor and material costs. Make sure you understand and accept all terms before signing the contract.
Normally, you should have your HVAC system inspected twice a year. After that inspection, your HVAC technician will tell you what, if any, services are required. You should also call a technician if you start to notice any issues, such as leaks, strange noises, or unusual smells. If you have ductwork in your home, it should be serviced every few years.
The best times to have your HVAC system inspected are during the spring and fall. Technicians are less busy during these times, which makes it easier to get an appointment. This also helps get your system ready for the summer and winter, the times of the year when it sees 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 is comfortable, and try to adjust it only a few degrees at a time. You might also consider a smart thermostat.
It takes roughly one to three days to have an HVAC system installed or replaced. If you only need an air conditioning unit or a furnace, this can take anywhere from a few hours up to two days. This timeline can be affected by the size of your home, the accessibility of your system, and any issues your technician uncovers.
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 be more effective than window units for cooling.
For a 2,000-square-foot home, you'll also look for a furnace that is between 50,000 and 80,000 BTUs (British thermal units).
Usually, HVAC financing is provided by a third-party lender. If your HVAC company doesn't have financing options, you might consider taking out your own loan. Be sure to speak with your HVAC company and a financial advisor to find out what options are available to you and appropriate for your situation.
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