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Last Updated: February 25, 2025
If you're like most Americans, more than half of your energy bill (55%, per the Department of Energy) goes toward heating and cooling. It's important to make sure the heating and cooling systems in your Greencastle home are functioning optimally, so you can avoid spending more than necessary.
Use our guide to the top HVAC companies in Greencastle to find the best one for you and your home. Our topic contractors can help you reduce your bills while still staying comfortable.

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Reliable customer support
Clear pricing policy
Informative resources
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Services Offered

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

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

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

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

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

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

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

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

Our Rating
User Rating
Free quotes
Informative resources
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 having issues or getting old, it likely needs servicing or replacement from an HVAC company. Watch for these signs your system needs service:
If you notice any of these HVAC issues, have a technician inspect your system. A local professional can diagnose problems and let you know whether whether repairing or getting a new HVAC unit is the correct solution.
The price of HVAC installation or maintenance varies depending on the kind of unit you have. Common types of HVAC units include the following:
The cost of HVAC maintenance also varies depending on what kind of work you're having done. HVAC systems are complicated and might require different kinds of maintenance. The prices of some common jobs are as follows:
| HVAC Unit Type | Cost | |
|---|---|---|
| Split | $1,880-$4,792 | |
| Hybrid Split | $3,809-$7,017 | |
| Heat Pump | $2,949-$30,053 | |
| Packaged Heating and Air | $247-$411 |
Essential HVAC maintenance is important, but can be pricey. Fortunately, homeowners can take steps to reduce wear and tear on their system and lower future maintenance needs.
| Service | Cost | |
|---|---|---|
| Filter Replacement | $62-$165 | |
| Condensor Cleaning | $1,234-$3,702 | |
| Thermostat Repair | $82-$206 | |
| Ductwork Cleaning | $395-$987 |
Knowing what to look for in an HVAC company is important for a successful project. Partnering with an experienced, licensed contractor can give you peace of mind and make sure 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 companies' diagnoses, suggested repairs, estimated costs, warranties, and timeframes. Avoid providers that pressure you or demand upfront payment.
Choose an HVAC company with well-trained technicians who have appropriate licensing and experience. HVAC contractors in all states have federal requirements set by 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 by the state.
There are no state-level licensing requirements for HVAC contractors in Indiana; however, most cities and municipalities have their own regulations. Make sure that you check with your local government and verify the business license of any company you hire. You should also check a provider's reviews and complaints with organizations such as the Better Business Bureau (BBB), Google Reviews, and Yelp. Choose a provider with glowing reviews and stories of positive service experiences.
Always make sure you know the details of a planned project. When HVAC repairs are required, your provider should list which parts require replacement and why. Confirm that your technician will clean and test the system after repairs are completed to verify that it’s working properly. When replacing your HVAC, have the contractor explain the new brand, estimated installation time, energy efficiency, model, and features. Before signing paperwork, be 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.
Reputable HVAC companies stand behind their work with warranties. Look at warranties from different companies, remembering that more comprehensive coverage is better. Look for the company that offers the most coverage for a fair price.
Get a written quote before HVAC work starts. A comprehensive 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 an inspection, your HVAC technician will tell you what, if any, services are required. You should also have an inspection if you notice any new issues, like leaks, unusual smells, or strange noises. If you have ductwork in your home, it should be serviced every few years.
The best times to have an HVAC inspection are 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, which is when it normally gets the most use.
You can save energy throughout the year by making it easier for your HVAC system to maintain the temperature of your home. Always keep your thermostat as close to the outside temperature as is comfortable, and try to adjust it only a few degrees at once. You may also consider getting a smart thermostat.
Generally, whole-system HVAC installation or replacement takes one to three days. Installing or replacing a furnace or air conditioning unit can take as little as half a day or as much as two days. The exact amount of time will vary depending on factors like the size of your house, how easily accessible different sections are, and whether your technician discovers any problems.
For a 2,000-square-foot home, you'll want 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 an air conditioning unit with between 2.5 and 5 tons of capacity. Generally, if your home is over 1,000 square feet, central air will be more effective than window air conditioning units.
Typically, HVAC financing is through a third-party lender. If your HVAC company doesn't have financing options, you might consider taking out your own loan. Be sure to talk to a financial advisor and your HVAC company to learn 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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