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Last Updated: February 25, 2025
On average, American homeowners devote 55% of their home energy usage to heating and cooling, according to the Department of Energy. Since such a significant portion of your utility bill goes toward heating and cooling, you'll want to ensure that the HVAC system in your Decatur home is functioning properly.
Use our guide to the top HVAC companies in Decatur to find the best choice for you and your home. Our topic contractors can help you stay comfortable while reducing your bills.

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

Our Rating
User Rating
Reliable customer support
Services Offered

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

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

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

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

Our Rating
User Rating
Services Offered

Our Rating
User Rating
Reliable customer support
Services Offered

Our Rating
User Rating
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 not working properly or past its lifespan likely needs professional attention for maintenance or replacement. Watch for these signals that your system needs service:
If you notice any of these HVAC red flags, your system evaluated. A local provider can complete an inspection, identify problems, and advise you whether you should repair or replace your HVAC unit.
Your HVAC installation or maintenance cost changes depending on the style of unit. Common HVAC unit types include the following:
The price of HVAC maintenance also varies depending on what kind of work you're having done. HVAC systems are complex and may require different kinds of maintenance. The prices of some common jobs are as follows:
| HVAC Unit Type | Cost | |
|---|---|---|
| Split | $1,856-$4,732 | |
| Hybrid Split | $3,762-$6,930 | |
| Heat Pump | $2,913-$29,678 | |
| Packaged Heating and Air | $244-$406 |
It's important to fix or swap out your HVAC components when they become damaged, but it can also be expensive. Luckily, there are some steps you can take to reduce wear and tear on your HVAC.
| Service | Cost | |
|---|---|---|
| Filter Replacement | $61-$162 | |
| Condensor Cleaning | $1,219-$3,656 | |
| Thermostat Repair | $81-$203 | |
| Ductwork Cleaning | $390-$975 |
Knowing what to look for in an HVAC company is crucial for a successful project. Partnering with an experienced, licensed contractor can give you peace of mind and ensure your system provides reliable heating and air conditioning for your home.
Contact at least three HVAC providers for quotes. Explain your issues and schedule an in-person inspection if possible. Compare contractors' diagnoses, suggested repairs, estimated costs, warranties, and timeframes. Avoid providers that pressure you or demand upfront payment.
Choose an HVAC company with skilled technicians who have appropriate licensing and experience. In all states, HVAC contractors have federal requirements from the Environmental Protection Agency (EPA). To obtain the EPA Section 608 Technician Certification, a contractor 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 at the state level.
Indiana doesn't have any state-level licensing requirements for HVAC contractors; however, most cities and municipalities have their own requirements. Make sure that you check with your local government and verify the business license of any company you hire. Also look at a company's reviews and complaints on sites such as Yelp, the Better Business Bureau (BBB), and Google Reviews. Pick a company with glowing feedback and stories of satisfied customers.
Make sure you understand the details of any project before starting. 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 ensure that everything works. When replacing your HVAC, request that the company explain the new features, brand, estimated installation time, model, and energy efficiency. Before signing paperwork, make sure you understand the process your provider will use to size the new HVAC system appropriately for your home and what the price will be.
Reliable HVAC companies provide warranties for their services. Broader coverage is better, so make sure to review warranties between providers. Choose the one that gives you the most coverage at a reasonable cost.
Get a written estimate 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.
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 needed. You should also have an inspection if you start to notice any issues, like leaks, unusual smells, 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, so it will be easier to get an appointment. This also ensures that your system is 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. During all seasons, keep your thermostat as close to the outside temperature as you can, and try to adjust it only a few degrees at a time. You could also consider purchasing a smart thermostat.
It takes between one and three days to have your HVAC system installed or replaced. If you need just a furnace or a single air conditioning unit, this may take between half a day and two days. This timeline will be determined by the size of your house, the accessibility of your system, and any issues your technician runs into.
For a 2,000-square-foot home, you need around 2.5 to 5 tons of air conditioning capacity. For homes over 1,000 square feet, central air will generally 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).
Your HVAC company might have financing options via a third-party lender, or you may be able 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 find the best option for you.
There are several ways you can make your HVAC system more energy-efficient:
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