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Last Updated: February 25, 2025
According to the U.S. Department of Energy, about 55% of the energy used in American homes is used for heating and cooling. Energy expenses in Lake Ronkonkoma can be steeper than in some other places, meaning that you're probably trying to save money on your bill.
Our list of Lake Ronkonkoma's top HVAC companies can help you save money by getting your HVAC system installed, repaired or replaced by the right person for the right price.

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

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

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

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

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

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

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

Our Rating
User Rating
Free quotes
Reliable customer support
Clear pricing policy
Informative resources
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 home's HVAC system is malfunctioning or nearing the end of its lifespan, you might need an HVAC contractor for repairs or replacement. Watch for these common indicators that your system requires professional attention:
If you notice any of these HVAC issues, have a technician inspect your system. A local professional can identify problems and decide whether fixing or replacing your HVAC unit is the correct solution.
The price of HVAC installation or maintenance varies depending on the type of unit you have. Common types of HVAC units include the following:
The price of HVAC maintenance also depends on what kind of work you're having done. HVAC systems are complex and may require different kinds of maintenance. The cost of some common repairs is as follows:
| HVAC Unit Type | Cost | |
|---|---|---|
| Split | $1,948-$4,966 | |
| Hybrid Split | $3,947-$7,272 | |
| Heat Pump | $3,056-$31,141 | |
| Packaged Heating and Air | $256-$426 |
Fixing your HVAC by repairing or replacing parts when needed is crucial, but can be expensive. Luckily, there are actions you can take to reduce gradual wear and tear on your system.
| Service | Cost | |
|---|---|---|
| Filter Replacement | $64-$170 | |
| Condensor Cleaning | $1,279-$3,836 | |
| Thermostat Repair | $85-$213 | |
| Ductwork Cleaning | $409-$1,023 |
Knowing what to look for in an HVAC company is important for a successful project. Look for an experienced, licensed contractor that can offer you peace of mind and ensure your system provides reliable air conditioning and heating for your home.
Contact at least three HVAC providers for quotes. Describe the issues and have technicians visit to inspect your HVAC system if possible. Compare the providers' explanations, solutions, estimated costs, warranties, and timeframes. Avoid companies that pressure you or demand payment upfront.
It's important to choose an HVAC company that employs technicians with the appropriate qualifications and expertise. In all states, HVAC contractors have federal requirements set by the Environmental Protection Agency (EPA). To obtain the EPA Section 608 Technician Certification, individuals must pass an exam (the specific exam depends on the 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.
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, Yelp, the Better Business Bureau (BBB), and similar sites can help your decision. Choose a provider with stellar reviews and stories of positive customer experiences.
Make sure you know the details of your project before starting. When getting 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, ask the provider to explain the new features, brand, energy efficiency, estimated installation time, and model. 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 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 for a fair price.
Get a written estimate before HVAC work begins. A comprehensive quote includes both labor and material costs. Make sure you understand and accept all terms before signing the contract.
You should have your HVAC system inspected approximately twice a year. Following an inspection, your technician will tell you if any services are required. You should also call a technician if you start noticing issues such as leaks, strange noises, or unusual smells. If your system has ductwork, it should be inspected every few years.
Normally, it's best to schedule inspections in the spring and fall, as these times tend to be less busy. This also helps get your system ready for the summer and winter, when it typically sees the most use.
You can save energy throughout the year by making it easier for your HVAC system to maintain your home's temperature. During all seasons, keep your thermostat as close to the outside temperature as is comfortable, and try to adjust it only a few degrees at once. You might also consider purchasing a smart thermostat.
For a 2,000-square-foot home, you need around 2.5 to 5 tons of air conditioning capacity. For a house 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).
Typically, HVAC financing is offered through a third-party lender. If your HVAC company doesn't offer these options, you may consider taking out a loan on your own. Be sure to speak with a financial advisor and your HVAC company to determine what options are available and appropriate for your situation.
There are a number of ways you can make your HVAC system more energy-efficient:
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