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Last Updated: February 25, 2025
On average, 55% of the energy used in American homes is for heating and cooling, according to the U.S. Department of Energy. Since heating and cooling represent such a significant chunk of your utility bills, you'll want to ensure that the HVAC system in your Ellicott home is functioning properly.
We've researched and assembled this guide to the top HVAC companies in Ellicott to help you find the right person for your job and get your system into its best shape ever.

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

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

Our Rating
User Rating
Free quotes
Reliable customer support
Services Offered

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

Our Rating
User Rating
Free quotes
Clear pricing policy
Services Offered

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

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

Our Rating
User Rating
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 malfunctioning or aging HVAC system probably needs attention from a professional who can make fixes or install a new unit. Watch out for these common indicators that your HVAC needs service:
If you notice any of the above, it's wise to have a local HVAC technician inspect your system. They can identify problems and let you know whether repair or full HVAC replacement is the better solution.
HVAC installation or maintenance prices vary depending on your system. Common HVAC unit types include the following:
HVAC maintenance prices differ based on the specific services needed. HVAC systems can be complicated and potentially require a number of services. Price ranges for typical jobs are as follows:
| HVAC Unit Type | Cost | |
|---|---|---|
| Split | $1,764-$4,497 | |
| Hybrid Split | $3,574-$6,585 | |
| Heat Pump | $2,768-$28,201 | |
| Packaged Heating and Air | $232-$386 |
It's important to take care of HVAC repairs and replacements in a timely manner, but it can also be expensive. Fortunately, there are steps you can take to slow the wear and tear on your system.
| Service | Cost | |
|---|---|---|
| Filter Replacement | $58-$154 | |
| Condensor Cleaning | $1,158-$3,474 | |
| Thermostat Repair | $77-$193 | |
| Ductwork Cleaning | $371-$926 |
It's important to know what makes a good HVAC company. Working with a contractor that's properly licensed and highly experienced will give you confidence that they can keep your system running efficiently, providing you with effective air conditioning and heating in your home.
Contact at least three HVAC companies for quotes. Describe your issues and schedule an in-person inspection if possible. Compare contractors' diagnoses, suggested repairs, estimated costs, timeframes, and warranties. Avoid providers 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 required for all technicians who "maintain, service, repair or dispose of equipment that could release refrigerants into the atmosphere." An individual 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 at the state level.
There is no state-level HVAC licensing in New York. However, many cities and municipalities have their own requirements, so be sure to check with your local government. For example, in some cases, a technician may need a High Pressure Boiler Operating Engineer or Oil Burning Equipment Installer license from the NYC Department of Buildings, or a Certificate of Qualification for Refrigerating System Operating Engineer from the Fire Department of New York. Checking reviews on Google Reviews, the Better Business Bureau (BBB), Yelp, and similar sites can help your decision as well. Choose a provider with great reviews and reports of positive experiences from customers.
It’s important to understand what the work process is going to look like. For HVAC repairs, the company should explain the specific parts that need replacement and why. Confirm that your technician will clean and test the full system afterward to ensure proper functioning. For replacement, ask your contractor to explain the new HVAC system estimated installation time, model, features, brand, and energy efficiency. Before signing a contract, you should understand how your provider will size the system appropriately for your home and the price you'll pay.
Good HVAC companies offer warranties on service and installations. The more complete the coverage, the better. Compare warranty details between providers and pick the one that offers the best protection within your budget.
Always get quotes for HVAC service in writing before committing to a provider. A comprehensive quote should cover both materials and labor. Make sure you review all terms before signing a contract.
Normally, your HVAC system should be inspected twice a year. After that inspection, your HVAC technician will tell you what services are needed. You should also call a technician if you start to notice any issues, such as strange noises, unusual smells, or leaks. 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 during the spring and fall. Technicians tend to be less busy during these times, making 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 during the winter by reducing how much power your HVAC system uses to heat your home. Keep your thermostat as low as you can and don't make drastic changes in the temperature — increase or decrease it a few degrees at a time. If possible, try switching to a smart thermostat.
It takes around one to three days to have your HVAC system installed or replaced. If you need just an air conditioning unit or a furnace, this may take between half a day and two days. This timeline can be affected by the size of your house, how easily accessible your system is, and any new issues your technician uncovers.
Your HVAC company may offer financing options via a third-party lender, or you may be able to obtain a loan on your own. It's a good idea 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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