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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 cooling and heating represent such a significant chunk of your utility bills, you'll want to ensure that the HVAC system in your Crestwood home is functioning optimally.
We've assembled this guide to the top HVAC companies in Crestwood to help you choose the best person for your job and get your system into its best shape ever.

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

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

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

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

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

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

Our Rating
User Rating
Free quotes
Informative resources
Reliable customer support
Clear pricing policy
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 faulty or getting old, it likely needs repairs or replacement from an HVAC company. Watch for these indicators your system needs service:
These HVAC red flags indicate that you should have your system evaluated. A local technician can complete an inspection, diagnose problems, and advise you whether you should repair or replace your HVAC unit.
The price of HVAC installation or maintenance varies depending on the kind of unit you have. Common varieties of HVAC units include the following:
The price of HVAC maintenance also depends on the kind of work being done. HVAC systems are complex and might require different kinds of maintenance. The prices of some common 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 |
It's important to repair or replace your HVAC system when it's broken, but it can also be expensive. Thankfully, there are steps you can take to reduce wear and tear on your HVAC.
| 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 crucial for a successful project. Look for an experienced, licensed contractor that can give you peace of mind and ensure your system provides reliable heating and air conditioning for your home.
Request estimates from at least three HVAC companies. Explain your issues and ask if technicians can inspect your system in person. Compare each company's diagnoses, recommended solutions, estimated cost, warranties, and timelines. Avoid companies that pressure you or demand payment before work.
When picking an HVAC company, choose one with technicians that have the appropriate 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 mandatory for any individual who helps "maintain, service, repair or dispose of equipment that could release refrigerants into the atmosphere." An individual 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.
The state of Missouri doesn't have state-level HVAC contractor licensing requirements; however, most municipalities have local requirements. Make sure that you 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, Yelp, and the Better Business Bureau (BBB). Pick a company with positive reviews and reports of fantastic customer experiences.
Make sure you know the details of any project before starting. For HVAC repairs, have your provider list which parts require 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, ask the contractor to describe the new brand, model, energy efficiency, estimated installation time, and features. Before work starts, ask how your provider plans to accurately size the unit for your home and how much it will cost.
A trustworthy HVAC company will stand behind its repair work and installations with a warranty. The longer and more comprehensive the coverage terms, the better. Carefully compare the fine print between contractors and choose the company that provides the best protection at a reasonable price.
Get a written estimate before HVAC work starts. A full quote includes both labor and material costs. Make sure you understand and accept all terms before signing the contract.
Typically, you should have your HVAC system inspected twice a year. After an inspection, your HVAC technician will tell you what services are required. You should also have an inspection if you start to notice any issues, like unusual smells, leaks, 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 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 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 avoid making drastic changes — adjust it only a few degrees at once. You may also consider a smart thermostat.
Generally, HVAC installation or replacement takes between one and three days for the entire system. 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 areas are, and whether your technician discovers any problems.
Normally, HVAC financing is offered through a third-party lender. If your HVAC company doesn't offer these options, you might consider taking out a loan on your own. Be sure to talk to a financial advisor and your HVAC company to find out what options are available and appropriate for your situation.
There are several ways you can make your HVAC system more energy-efficient:
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