
Serving Ronkonkoma, NY and surrounding areas
Approved
In business since 2002
Free estimates
Emergency services offered
"Excellent service,knowledgeable,fast,reasonable price, I highly recommend to anyone that needs HVAC services."





+1


Serving Ronkonkoma, NY and surrounding areas
Approved
In business since 2002
Free estimates
Emergency services offered
"Excellent service,knowledgeable,fast,reasonable price, I highly recommend to anyone that needs HVAC services."





+1
Serving Ronkonkoma, NY and surrounding areas
Approved
In business since 1995
Free estimates
Credit card accepted
"Eric showed up for the estimate on time and called back a few days later to check in. Eric and his crew replaced my central air today. They showed up on time and got right to work. The install went quick and it looks professional and neat. Will recommend him to anyone needs HVAC."

Serving Ronkonkoma, NY and surrounding areas
Approved
In business since 1969
Free estimates
Emergency services offered
"Kevin was great! The rest of the company not so much. Kevin diagnosed the problem immediately as the thermostat, had a replacement in the truck, and completed the installation of the new unit quickly. He showed me how to program the updated version, and everything seemed to be fine - until the next morning. Turned out the replacement was defective. When I called, I was told that they might not be able to get back to me that day, but Kevin interrupted his schedule to come back and put in a new (and working) unit at no charge."





+13

Serving Ronkonkoma, NY and surrounding areas
Approved
Super Service Award Winner
In business since 2020
Free estimates
Emergency services offered
"He did it right and a very efficient installation job"





+11
Serving Ronkonkoma, NY and surrounding areas
Approved
In business since 2017
Free estimates
Emergency services offered
"FANTASTIK!!!!! Came to my house looked at Hot water tank and was back 1st thing in am and replaced everything! Fast clean super nice!!!!Explained everything! The best!"

Serving Ronkonkoma, NY and surrounding areas
Approved
In business since 2013
Free estimates
Emergency services offered
"I sent a message to the company in the late evening regarding my broken central AC and Jason was here Tuesday morning to look at it. He tried to repair it but was not able to due to the age of the unit and the damage. We needed a new unit and he was here to put it in first thing Wednesday morning. Took him two hours and our AC was working. He was nice and professional. We felt the price was reasonable. Would use him again and recommend his business."





+14

Serving Ronkonkoma, NY and surrounding areas
Approved
In business since 2025
Free estimates
Emergency services offered
"Had problems with my gas furnace and they fixed it fast. Clear communication, good work, and very professional. Highly recommend."

Serving Ronkonkoma, NY and surrounding areas
Approved
In business since 1952
Free estimates
Warranties offered
"As a Full-Service Contractor and Residential Builder in Nassau County, we at HOMEREDI have relied on the Expert Team of Technicians and Installers from ELM Air Conditioning in Freeport Long Island for all of our discerning Clients HVAC requirements. The entire staff from the Operating Owners to every individual member are always willing to push the envelope forward when it comes to meeting our deadlines and delivering a superb product in a timely fashion. Not only we team up with ELM but we also capitalize on their vast reach and knowledge for our own residential air conditioning Service installation and continued maintenance Service. We highly recommend ELM Air conditioning not only to our Clients but to our Neighbors across the Island."


Serving Ronkonkoma, NY and surrounding areas
Approved
In business since 2012
Free estimates
Customers say: Quick response
Long Island HVAC Inc., where service meets integrity. We are the company that treats you right even after the work is completed. Contact us for a free estimate! \n \nWith so many contractor companies to choose from choose the one that was built on the belief system of integrity. We know that one of the most important aspects of your home is the quality and performance of your heating and cooling system. Whether during the hot-humid summer or the bitter-cold winter, making sure that the inside of your home stays at a constant, comfortable temperature is of paramount importance. It is our goal to provide all of our customers with the courteous attention they deserve, any time of the day, every day of the year. Long Island HVAC, Inc. is gearing up for winter. Contact us for a free Heating estimate today! \n




Serving Ronkonkoma, NY and surrounding areas
In business since 2009
Free estimates
Emergency services offered
"Joe was great. Our a/c broke during the hottest time in the summer and Joe came right away to fix it. He was so friendly and so professional. Thank you Joe from central Suffolk mechanical For your services."
From average costs to expert advice, get all the answers you need to get your job done.

Budget for AC capacitor replacement costs based on factors such as the capacitor type, size, labor, potential repairs, location, season, and more.

Budget for AC coil cleaning costs based on factors such as cleaning frequency, coil type, cleaning method, accessibility, ongoing maintenance, and more.

Budget for the cost to replace an AC condenser based on factors such as unit size, repair type, brand, accessibility, labor, and more.

Budget for AC evaporator coil replacement costs based on factors such as your AC unit’s tonnage, coil style, professional labor rates, and more.

Budget for HVAC maintenance costs based on factors such as unit age, time of year, repair task, warranties, condition, service plans, and more.

Learn how much a swamp cooler costs to install based on the type, project size, operating costs, removal and disposal fees, and add-ons.