Get matched with top heating and air conditioning pros in Ronkonkoma, NY
There are 48 highly-rated local heating and air conditioning pros.
TRUSTED BY RONKONKOMA, NY HOMEOWNERS
4.3 
146 Verified Reviews for Heating And Air Conditioning Service pros in Ronkonkoma, NY
*The Angi rating for Heating And Air Conditioning Service companies in Ronkonkoma, NY is a rating based on verified reviews from our community of homeowners who have used these pros to meet their Heating And Air Conditioning Service needs.
*The HomeAdvisor rating for Heating And Air Conditioning Service companies in Ronkonkoma, NY is a rating based on verified reviews from our community of homeowners who have used these pros to meet their Heating And Air Conditioning Service needs.
Last update on July 16, 2025
Heating and air conditioning pros in Ronkonkoma
Wholesaler. Hvac Equipment sales service installs etc.
Wholesaler. Hvac Equipment sales service installs etc.
Yeshire Mechanical LLC serves its customers with pride, integrity and attention to the details that matter most. This is one of the many things that sets us apart from other companies. We are locally owned and operated. Just give us a call today! interior remodeling, kitchen and bath, residential only, repair, hvac
Yeshire Mechanical LLC serves its customers with pride, integrity and attention to the details that matter most. This is one of the many things that sets us apart from other companies. We are locally owned and operated. Just give us a call today! interior remodeling, kitchen and bath, residential only, repair, hvac
Call us today! Available 24/7/365.We are ready, willing and able to help with whatever problem that might arise day or night.
Call us today! Available 24/7/365.We are ready, willing and able to help with whatever problem that might arise day or night.
Licensed Electricians and Federally Licensed Air Conditioning Installations and Services
"Phenomenal company! Billy and Mike were absolute professionals. All Green was able to schedule me within two days and arrived on time. They are both friendly guys who take great pride in their work and explained everything I wanted/needed to know in a thorough and understandable manner. I have an aging a/c system that had been neglected on the service side by the previous owner, so I was expecting the worst. After inspecting and testing the units involved with the system, Billy and Mike were able to diagnose and fix all problems for for a fraction of what I was expecting to pay. After the repairs were made, the a/c system is working like a charm and cooling noticeably better than last year. We're ready for summer! Many thanks to All Green. I highly recommend their services and will most certainly be contacting them in the future for service and repairs."
Tommy S on April 2019
Licensed Electricians and Federally Licensed Air Conditioning Installations and Services
"Phenomenal company! Billy and Mike were absolute professionals. All Green was able to schedule me within two days and arrived on time. They are both friendly guys who take great pride in their work and explained everything I wanted/needed to know in a thorough and understandable manner. I have an aging a/c system that had been neglected on the service side by the previous owner, so I was expecting the worst. After inspecting and testing the units involved with the system, Billy and Mike were able to diagnose and fix all problems for for a fraction of what I was expecting to pay. After the repairs were made, the a/c system is working like a charm and cooling noticeably better than last year. We're ready for summer! Many thanks to All Green. I highly recommend their services and will most certainly be contacting them in the future for service and repairs."
Tommy S on April 2019
Our business begins and ends with our clients. When they’re happy, we’re happy.
Our business begins and ends with our clients. When they’re happy, we’re happy.
Don't let emergency plumbing issues stress you out, call us for 24 hour emergency service.
Don't let emergency plumbing issues stress you out, call us for 24 hour emergency service.
We are a full service company that prides itself on being clean and punctual. We will arrive at your home with an experienced, knowledgeable service technician with a truck carrying all the materials needed to complete the scope of work as efficiently as possible.
We are a full service company that prides itself on being clean and punctual. We will arrive at your home with an experienced, knowledgeable service technician with a truck carrying all the materials needed to complete the scope of work as efficiently as possible.
We provide solutions for all your plumbing repair needs and are available 24-hours for emergencies. We service residential and commercial properties, repairing toilets, sinks, water heaters and more!
We provide solutions for all your plumbing repair needs and are available 24-hours for emergencies. We service residential and commercial properties, repairing toilets, sinks, water heaters and more!
West 34th Plumbing and Heating is a full service plumbing, heating, air conditioning, drain and sewerage cleaning company.
West 34th Plumbing and Heating is a full service plumbing, heating, air conditioning, drain and sewerage cleaning company.
FAQs for heating and air conditioning service projects in Ronkonkoma, NY
Knowing how long your existing HVAC units can last is essential to determine if you need a repair or replacement. Typically, most modern air conditioning units can last between 15 to 20 years, and most furnaces can work properly for 15 to 30 years. If your HVAC system is on the older side and you decide to replace one unit, it might make sense to replace both simultaneously to save on costs and future hassle.
While different HVAC contractors might offer higher or lower prices than competitors, the best time to replace your HVAC system is when customer demand is low. The beginning of summer and the beginning of winter bring the most demand for HVAC systems, so if you can, consider replacing your HVAC units in the early spring or fall. Many HVAC companies offer special off-season coupons that help lower the overall cost.
The average cost to hire an HVAC contractor is between $50 and $150 per hour if charging hourly. However, some HVAC contractors will charge a flat fee by the type of service they are performing—for example, an inspection can cost between $150 to $500. Keep in mind that emergency repairs—which are made after business hours or around major holidays—generally cost more than scheduled repairs.
Yes, most states require HVAC technicians to be certified, and for good reason. Hiring an unlicensed HVAC technician could lead to poor quality work, costly future expenses, and potential code violations.
As you browse our pro listings, take note of the “Angi Approved” badge. Angi Approved businesses meet our standards for certification which include:
The owner, principal, or relevant manager passed a criminal background check
Required to have applicable state and local licenses
Maintain an average star rating of 3.0 or better on our network, if they have at least one review
Paying to advertise their services
Meeting any other eligibility criteria required by Angi
Keep in mind licensing is different from certifications. A license is a legal requirement to operate a business, while certifications are voluntary.
The average cost of HVAC repairs is around $350. However, that price can be as low as $100 or as high as $2,000 or more, depending on the repair. For example, replacing a capacitor is a relatively inexpensive repair, ranging from $100 to $500. However, a compressor repair is a more expensive repair, ranging from $750 to $2,000.
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