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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. With so much money invested in cooling and heating your Hannibal home, you want to know that you're getting the best return on your investment.
Read our list of the top HVAC companies in Hannibal to find the right one for you and your home. Our topic contractors can help you reduce your bills while still staying comfortable.

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

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

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

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

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

Our Rating
User Rating
Free quotes
Services Offered

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

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

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

Our Rating
User Rating
Reliable customer support
Free quote
Clear pricing policy
Informative resources
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 home's HVAC system isn't working correctly or nearing the end of its lifespan, you might need an HVAC contractor for maintenance or replacement. Look for these common indicators that your system requires expert attention:
Arrange an inspection if you notice any of these issues. A local technician can evaluate your system, identify problems, and determine whether you need to fix or replace your HVAC.
Your HVAC installation or maintenance cost varies depending on the style of unit. Common HVAC unit varieties include the following:
HVAC costs differ based on the services needed. HVAC systems are complex and may need multiple types of maintenance. Costs for common jobs are as follows:
| HVAC Unit Type | Cost | |
|---|---|---|
| Split | $1,757-$4,480 | |
| Hybrid Split | $3,561-$6,560 | |
| Heat Pump | $2,757-$28,093 | |
| Packaged Heating and Air | $231-$385 |
Essential HVAC maintenance is important, but can be expensive. Fortunately, there are steps homeowners can take to reduce wear and tear on their HVAC and lower future maintenance needs.
| Service | Cost | |
|---|---|---|
| Filter Replacement | $58-$154 | |
| Condensor Cleaning | $1,154-$3,461 | |
| Thermostat Repair | $77-$192 | |
| Ductwork Cleaning | $369-$923 |
Knowing the indicators of a reliable HVAC company is key for a smooth installation or repair. Established providers with certified technicians can offer 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 system if possible. Compare the providers' explanations, solutions, estimated costs, timeframes, and warranties. Avoid companies that pressure you or demand payment upfront.
It's important to choose an HVAC company that employs technicians with the appropriate qualifications and expertise. In all states, HVAC contractors have federal requirements from the Environmental Protection Agency (EPA). To obtain the EPA Section 608 Technician Certification, individuals must pass an exam (the type of exam depends on what 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.
Missouri doesn't have state-level licensing requirements for HVAC contractors; however, most municipalities have local requirements. Be sure to check with your local government to understand requirements for licenses such as HVAC Contractor or HVAC Journeyman Contractor. You can also confirm that a company holds a valid business license. You should also check a company's reviews and complaints with organizations such as Yelp, Google Reviews, and the Better Business Bureau (BBB). Choose a provider with glowing reviews and stories of positive service experiences.
Make sure you know the details of your project before it begins. For HVAC repairs, have your provider detail which parts need replacement and why. Get confirmation that your technician will clean and test your system after the repair to verify that everything works. When replacing your HVAC, ask your installation company to provide details on the new brand, model, estimated installation time, features, and energy efficiency. Before signing a contract, make sure you understand the process your provider will use to select the correctly sized system for your home and what the cost will be.
Good HVAC companies offer warranties on repairs and equipment installations. The more complete the coverage, the better. Compare warranty details between companies and pick the one that offers the best protection for the fairest price.
Get a written proposal before HVAC work begins. A full quote includes both materials and labor 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 technician will tell you what services are required. You should also call a technician if you start to notice any issues, such as strange noises, leaks, or unusual smells. If your home has ductwork, it should be serviced every few years.
The best times of the year to have your HVAC system inspected are during the spring and fall. Technicians tend to be less busy during these times, so it will be easier to get an appointment. This also helps get your system 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 the temperature of your home. Always keep your thermostat as close to the outside temperature as possible, and avoid making drastic changes — adjust it only a few degrees at a time. You could also consider getting a smart thermostat.
For a 2,000-square-foot home, look for a furnace that's between 50,000 and 80,000 BTUs (British thermal units).
For a 2,000-square-foot home, you'll also want to purchase an air conditioning unit with between 2.5 and 5 tons of capacity. In general, if your home is larger than 1,000 square feet, central air will be more effective than window air conditioning units.
Your HVAC company may provide financing options via a third-party lender, or you might choose to obtain a loan on your own. It's a good idea to discuss payment options with a financial advisor and your HVAC company to make sure that you're choosing the best option for you.
There are several ways you can make your HVAC system more energy-efficient:
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