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Last Updated: February 25, 2025
According to the U.S. Department of Energy, approximately 55% of energy use in American homes goes toward heating and cooling. When you live in Killeen, a big part of your energy spending probably goes toward your summer cooling bill — on average, residents spend approximately $130 monthly.
Our guide to the top HVAC companies in Killeen can help you save money by getting your HVAC system repaired, installed or replaced for a fair price by a skilled worker.

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

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

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

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

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

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

Our Rating
User Rating
Informative resources
Clear pricing policy
Services Offered

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

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

Our Rating
User Rating
Clear pricing policy
Prompt service delivery
Informative resources
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 indicators that your HVAC needs service:
If you're experiencing any of these HVAC issues, we recommend having a technician inspect your system. A local professional can identify problems and determine whether repairing or getting a new HVAC unit is the best solution.
The price of HVAC installation or maintenance will vary depending on the kind of unit you have. Common types of HVAC units include the following:
HVAC expenses vary based on the work needed. HVAC systems are complicated and may need several types of maintenance. Costs for common jobs are as follows:
| HVAC Unit Type | Cost | |
|---|---|---|
| Split | $1,755-$4,473 | |
| Hybrid Split | $3,555-$6,550 | |
| Heat Pump | $2,753-$28,050 | |
| Packaged Heating and Air | $230-$384 |
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 reduce wear and tear on your system.
| Service | Cost | |
|---|---|---|
| Filter Replacement | $58-$154 | |
| Condensor Cleaning | $1,152-$3,455 | |
| Thermostat Repair | $77-$192 | |
| Ductwork Cleaning | $369-$921 |
Knowing the right things to look for in an HVAC company is key for a smooth installation or repair. Picking an established business with certified technicians gives you assurance your HVAC system will deliver consistent coolig and heating year-round.
Contact at least three HVAC contractors for quotes. Describe your issues and schedule an in-person inspection if possible. Compare providers' diagnoses, suggested repairs, estimated costs, timeframes, and warranties. Avoid companies that pressure you or demand upfront payment.
Look for an HVAC company that employs skilled technicians with the necessary licensure and training. 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." Contractors 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.
HVAC contractors in Texas must be licensed by the Texas Department of Licensing and Regulation. Contractors need to have at least four years of experience within the past six years and must show proof of insurance. An individual can also be a registered technician, which has no experience requirements, or a certified technician, which requires two years of experience. Registered and certified technicians must both be supervised by a licensed contractor. You should also check a provider's reviews and complaints with organizations such as Google Reviews, the Better Business Bureau (BBB), and Yelp. You'll want to select a company with positive reviews and a history of good customer service.
Always make sure you know what a company’s process is like. When HVAC repairs are needed, ask your provider to specify which parts need replacement and why. Confirm that your technician will clean and test your system afterward to guarantee proper operation. When replacing your HVAC, have the provider describe the new energy efficiency, model, estimated installation time, features, and brand. Before signing a contract, ask about the process your provider will use to properly size the new system for your home and how much it will cost.
Good HVAC companies offer warranties on service and installations. The more complete the coverage, the better. Compare warranty details between companies and pick the one that provides the best protection within your budget.
Get a written proposal before HVAC work starts. A comprehensive quote includes both materials and labor costs. Make sure you understand and accept all terms before signing the contract.
You should have your HVAC system inspected about twice annually. After completing their inspection, your technician will inform you what services are needed. You should also have your system inspected if you start noticing issues such as strange noises, unusual smells, or leaks. If your system has ductwork, you should have it inspected every few years.
Generally, you should schedule inspections in the spring and fall, as these times tend to be less busy. This also helps make sure your system is prepared for the summer and winter, when it likely sees the most use.
You can save energy during the summer by making it easier for your HVAC system to keep your home cool. Set your thermostat as close to the outside temperature as is comfortable, and try to avoid making drastic changes in temperature all at once. Keep your roof in good shape and seal any window or door leaks to help keep cool air in. Similarly, ensure that 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 a furnace or air conditioning unit takes anywhere from about half a day up to two days. The exact amount of time will depend on things like the size of your home, how easily accessible different areas are, and whether your technician runs into any problems.
For a 2,000-square-foot home, you need around 2.5 to 5 tons of air conditioning capacity. In Killeen, you'll probably want to choose a unit that's on the higher end of this range. For a house over 1,000 square feet, central air will usually be more effective than window units for cooling.
For a 2,000-square-foot home, you should also look for a furnace that is between 50,000 and 80,000 BTUs (British thermal units). In Killeen, you may be able to make do with a lower-capacity furnace.
Your HVAC company may have financing options through a third-party lender, or you may choose to obtain your own loan. It's smart to discuss payment options with your HVAC company and a financial advisor to make sure that you're choosing the best option for you.
There are a number of ways you can make your HVAC system more energy-efficient:
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