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Last Updated: February 25, 2025
If you're like the average American, over half of your energy bill (55%, per the U.S. Department of Energy) goes toward heating and cooling. You want your New Castle home to be comfortable, but you also don't want to be wasting your money on ineffective heating and cooling.
Our guide to New Castle's top HVAC companies can help you get your system into top shape, allowing you to keep comfortable while saving money.

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

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

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

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

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

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

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

Our Rating
User Rating
Free quotes
Reliable customer support
Prompt service delivery
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:
Book an inspection if you notice any of these problems. A local technician can evaluate your system, detect problems, and determine whether you need repairs or a new HVAC unit.
Your HVAC installation or maintenance cost fluctuates depending on the style of unit. Common HVAC unit varieties include the following:
HVAC maintenance prices vary based on the services needed. HVAC systems are complicated and may need multiple types of maintenance. Prices for common jobs are as follows:
| HVAC Unit Type | Cost | |
|---|---|---|
| Split | $1,902-$4,848 | |
| Hybrid Split | $3,854-$7,100 | |
| Heat Pump | $2,984-$30,406 | |
| Packaged Heating and Air | $250-$416 |
Repairing or replacing your HVAC system when needed is crucial, but can be costly. Luckily, there are steps you can take to minimize wear and tear over time on your system.
| Service | Cost | |
|---|---|---|
| Filter Replacement | $62-$166 | |
| Condensor Cleaning | $1,249-$3,746 | |
| Thermostat Repair | $83-$208 | |
| Ductwork Cleaning | $400-$999 |
Knowing the indicators of a reliable 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 heating and cooling year-round.
Request estimates from three or more HVAC companies. Describe your issues and ask if specialists can inspect your system in person. Compare each provider's diagnoses, recommended solutions, estimated cost, timeline, and warranties. Avoid providers that pressure you or demand payment before work.
Choose an HVAC company with highly 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, an individual must pass an exam (the specific 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 requirements for general HVAC licensing in Pennsylvania. However, there may be local licensing requirements or certifications required for specific projects. You can also verify whether a contracting company has a valid Pennsylvania business license. Always check a company's reviews and complaints with organizations such as Google Reviews, Yelp, and the Better Business Bureau (BBB). You'll want to select a company with glowing reviews and stories of positive service experiences.
It’s important to understand what the work process will look like. For HVAC repairs, the company should detail the specific parts that need replacement and why. Get confirmation that your technician will clean and test your system afterward to make sure everything is operating properly. When getting a replacement, ask your contractor to explain the new HVAC system brand, energy efficiency, features, estimated installation time, and model. Before starting the project, you should understand the process your provider will use to properly size the system for your home and the price you'll pay.
Reputable HVAC companies back their work with warranties. Look at warranties from different companies, keeping in mind that broader coverage is better. Look for the provider that offers the most coverage for a fair price.
Always get HVAC estimates in writing before work begins. A detailed quote covers costs for both materials and labor. Ensure that you agree to all terms before signing the contract.
Generally, 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 have your system inspected and serviced if you start to notice any issues, such as leaks, unusual smells, or strange noises. If you have ductwork in your home, it should be serviced every few years.
The best times of the year to have an HVAC inspection are the spring and fall. Technicians tend to be less busy during these times, which makes it easier to get an appointment. This also ensures that your system is ready for the summer and winter, the times of the year when it gets the most use.
You can save energy throughout the year by reducing the amount of power your HVAC system uses to maintain your home's temperature. During all seasons, keep your thermostat as close to the outside temperature as possible, and try to adjust it only a few degrees at a time. You could also consider purchasing a smart thermostat.
It takes around one to three days to have an HVAC system installed or replaced. If you need just a furnace or a single air conditioning unit, this might take anywhere from a few hours up to two days. This timeline will be influenced by the size of your home, the accessibility of your system, and any new issues your technician runs into.
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 around 2.5 to 5 tons of capacity. Typically, if your home is over 1,000 square feet, central air will be more effective than window air conditioning units.
Typically, HVAC financing is offered through a third-party lender. If your HVAC company doesn't offer these options, you could consider taking out your own loan. Be sure to speak with 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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