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Find Geothermal heating or cooling system installers in Lynbrook

Avatar for Mazgan Air Conditioning & Heating Repair

Mazgan Air Conditioning & Heating Repair

4.23(
30
)
•Approved Pro

Mazgan Air Conditioning & Heating Repair

4.23(
30
)
•Approved Pro
18 years of experience
Warranties offered

We are a family owned and operated business with several years of HVAC experience. We pride ourselves on providing an honest and accurate quote and stand behind our work. We have outstanding ratings and provide superior customer service. Feel free to check us out and give us a call for more information.

"TLDR: safe, thorough, educational. 10/10 would call again. - My in-unit residential heater has been rattling and the filter light has been going off since I moved in (2 years). I've taken it apart (as much as I could) to do superficial cleanings, but to be safe I asked my landlord if I could find a Rinnai-certified technician to complete a professional servicing. I found Mazgan on Google and chose them due to their 4.7 rating. My landlord's initial concerns with outsourcing from the super was that companies tend to tack on hidden fees/charges. Mazgan did not do this. In advance of our appointment, Mazgan assured me that they were only booking me for a professional servicing appointment (which included opening up the unit, completing a comprehensive cleaning, and diagnostic), and that any issues found would not be addressed in that appointment but rather a 2nd appointment would be recommended if necessary. Thankfully, nothing was wrong with the unit (besides the fact that it has literally never been cleaned 🙃). Zaki, the technician, was extremely thorough. He cleaned the unit for nearly 2 hours, was very quiet and gave me a heads up when something would be noisy (which enabled me to work-from-home in peace), showed me photos of how clogged the vents were with dust/grime, and provided a lengthly and clear explanation of how the machine works and the importance of cleaning/how accidents can happen if not. They showed up when they said, charged what they said, and completed what they said. First things I did once Zaki left were to save Mazgan's number, purchase a carbon monoxide detector, and leave this review."

Laurin G on January 2026

We are a family owned and operated business with several years of HVAC experience. We pride ourselves on providing an honest and accurate quote and stand behind our work. We have outstanding ratings and provide superior customer service. Feel free to check us out and give us a call for more information.

"TLDR: safe, thorough, educational. 10/10 would call again. - My in-unit residential heater has been rattling and the filter light has been going off since I moved in (2 years). I've taken it apart (as much as I could) to do superficial cleanings, but to be safe I asked my landlord if I could find a Rinnai-certified technician to complete a professional servicing. I found Mazgan on Google and chose them due to their 4.7 rating. My landlord's initial concerns with outsourcing from the super was that companies tend to tack on hidden fees/charges. Mazgan did not do this. In advance of our appointment, Mazgan assured me that they were only booking me for a professional servicing appointment (which included opening up the unit, completing a comprehensive cleaning, and diagnostic), and that any issues found would not be addressed in that appointment but rather a 2nd appointment would be recommended if necessary. Thankfully, nothing was wrong with the unit (besides the fact that it has literally never been cleaned 🙃). Zaki, the technician, was extremely thorough. He cleaned the unit for nearly 2 hours, was very quiet and gave me a heads up when something would be noisy (which enabled me to work-from-home in peace), showed me photos of how clogged the vents were with dust/grime, and provided a lengthly and clear explanation of how the machine works and the importance of cleaning/how accidents can happen if not. They showed up when they said, charged what they said, and completed what they said. First things I did once Zaki left were to save Mazgan's number, purchase a carbon monoxide detector, and leave this review."

Laurin G on January 2026

Avatar for Elm Air Conditioning Corp

Elm Air Conditioning Corp

4.45(
74
)
•Approved Pro

Elm Air Conditioning Corp

4.45(
74
)
•Approved Pro
Customers say: Super punctual
70 local quotes requested
74 years of experience

Residential heating and air conditioning. Additional email - scott@elmair.com. Additional phone 631-589-7766

"They installed a new air handler and compressor,my old system,also installed by them,18 years ago,had some serious repair issues. i have dealt with them for 18 years,with maintenance and checkups,have always been tyreated with courtesy,respect and top notch serice,the team that came yesterday,was prepared,knowledgeable and took extra care to not damge my home.very satisfied with the crew,installation...and never in my 80 yeras have so many nice young man,called me sir."

Michael P on May 2024

Residential heating and air conditioning. Additional email - scott@elmair.com. Additional phone 631-589-7766

"They installed a new air handler and compressor,my old system,also installed by them,18 years ago,had some serious repair issues. i have dealt with them for 18 years,with maintenance and checkups,have always been tyreated with courtesy,respect and top notch serice,the team that came yesterday,was prepared,knowledgeable and took extra care to not damge my home.very satisfied with the crew,installation...and never in my 80 yeras have so many nice young man,called me sir."

Michael P on May 2024

RVM Heating & Air Conditioning

New on HomeAdvisorNew on HomeAdvisor
•Approved Pro

RVM Heating & Air Conditioning

New on HomeAdvisorNew on HomeAdvisor
•Approved Pro
6 years of experience
Free onsite estimate

With over 5 years of experience, RVM Heating & Air Conditioning is committed to excellence every aspect of our business. We uphold a standard of integrity bound by fairness, honesty, and personal responsibility. Our distinction is the quality of service we bring to our customers. Accurate knowledge of our trade combined with ability is what makes us true professionals. Above all, we are watchful of our customers' interests and make their concerns the basis of our business. Call us today! Free Estimates!

With over 5 years of experience, RVM Heating & Air Conditioning is committed to excellence every aspect of our business. We uphold a standard of integrity bound by fairness, honesty, and personal responsibility. Our distinction is the quality of service we bring to our customers. Accurate knowledge of our trade combined with ability is what makes us true professionals. Above all, we are watchful of our customers' interests and make their concerns the basis of our business. Call us today! Free Estimates!

Avatar for AR AIR CORP

AR AIR CORP

5.00(
52
)
•Approved Pro

AR AIR CORP

5.00(
52
)
•Approved Pro
Super Service Award
Customers say: Quick response
Recommended by 96% of Angi customers
Recommended by 96% of HomeAdvisor customers
27 years of experience

AR Air has been proudly serving our community since 1999, providing top-quality heating, cooling, and appliance services. We specialize in AC, heating, and water heater solutions, and we’re a Fujitsu Elite contractor for ductless systems. Our expertise also includes rooftop package units, PTAC units, humidifiers, and WiFi thermostats, along with repairs and maintenance on all refrigeration systems.

"Fast service. Great insight. Good guys"

brian f on February 2026

AR Air has been proudly serving our community since 1999, providing top-quality heating, cooling, and appliance services. We specialize in AC, heating, and water heater solutions, and we’re a Fujitsu Elite contractor for ductless systems. Our expertise also includes rooftop package units, PTAC units, humidifiers, and WiFi thermostats, along with repairs and maintenance on all refrigeration systems.

"Fast service. Great insight. Good guys"

brian f on February 2026

Avatar for Ryan & Company

Ryan & Company

4.48(
64
)
•Approved Pro

Ryan & Company

4.48(
64
)
•Approved Pro
Customers say: Super punctual
77 years of experience
Free onsite estimate

We are a Family owned & operated business. Ryan & Co.,Inc. is a full service Plumbing, Heating and Cooling repair and installation company established in 1949 with a genuine commitment to professional, affordable & personalized service.

"Great job guys. Lovely working with them"

Robert H on July 2024

We are a Family owned & operated business. Ryan & Co.,Inc. is a full service Plumbing, Heating and Cooling repair and installation company established in 1949 with a genuine commitment to professional, affordable & personalized service.

"Great job guys. Lovely working with them"

Robert H on July 2024

Avatar for All Weather Heating & Cooling

All Weather Heating & Cooling

4.68(
60
)
•Approved Pro

All Weather Heating & Cooling

4.68(
60
)
•Approved Pro
Customers say: Super punctual
Recommended by 91% of Angi customers
Recommended by 91% of HomeAdvisor customers
57 years of experience

All Weather Heating & Cooling has been serving Nassau & Suffolk County of Long Island since 1969. We are now celebrating 56 years of exceeding customer expectations. All Weather provides sales, installation, service and maintenance of residential and commercial heating, air conditioning & water filtration systems.

"They installed a minisplit cooling system, with 3 exchanges June 2021. Since then it is not operating the way it should. In my bedroom with the door closed at night on cool at 70 degrees the humidity goes up to 80%. I wake up uncomfortable, change it from cool to dry mode. The humidity will go down into the 50% range but the temperature drops down to 62 or less! So in cool or dry mode I can't get a good nights sleep! They come and look at it and tell me everything is fine. I'm going to buy a window air conditioner tomorrow which seems insane because i spent $10,000 on this minisplit AC system!"

JIM G on June 2023

All Weather Heating & Cooling has been serving Nassau & Suffolk County of Long Island since 1969. We are now celebrating 56 years of exceeding customer expectations. All Weather provides sales, installation, service and maintenance of residential and commercial heating, air conditioning & water filtration systems.

"They installed a minisplit cooling system, with 3 exchanges June 2021. Since then it is not operating the way it should. In my bedroom with the door closed at night on cool at 70 degrees the humidity goes up to 80%. I wake up uncomfortable, change it from cool to dry mode. The humidity will go down into the 50% range but the temperature drops down to 62 or less! So in cool or dry mode I can't get a good nights sleep! They come and look at it and tell me everything is fine. I'm going to buy a window air conditioner tomorrow which seems insane because i spent $10,000 on this minisplit AC system!"

JIM G on June 2023

Avatar for Temperature Zone Corp

Temperature Zone Corp

4.86(
44
)
•Approved Pro

Temperature Zone Corp

4.86(
44
)
•Approved Pro
Customers say: Super punctual
Recommended by 95% of Angi customers
Recommended by 95% of HomeAdvisor customers
39 years of experience

Get the best, forget the rest! By treating clients like we would our family. We are more than just another Heating and Air Conditioning company. We are meticulous problem solvers who dedicate our time to ensure that we we deliver the best quality possible for the best price! As a Father and Son team that have over 30+ years in the business. If you are looking for more than a empty promise you can count on us to keep our word and deliver the quality job you deserve! We also offer financing options that will pre-qualify in 60 seconds with no affect to your credit score.

"Work was neat and quick, and now the house is warm."

Edmond B on October 2025

Get the best, forget the rest! By treating clients like we would our family. We are more than just another Heating and Air Conditioning company. We are meticulous problem solvers who dedicate our time to ensure that we we deliver the best quality possible for the best price! As a Father and Son team that have over 30+ years in the business. If you are looking for more than a empty promise you can count on us to keep our word and deliver the quality job you deserve! We also offer financing options that will pre-qualify in 60 seconds with no affect to your credit score.

"Work was neat and quick, and now the house is warm."

Edmond B on October 2025

Avatar for Universe Home Services

Universe Home Services

4.53(
444
)
•Approved Pro

Universe Home Services

4.53(
444
)
•Approved Pro
Customers say: Super punctual
22 local quotes requested
72 years of experience

Since 1954, Universe Home Services has been proudly serving the Nassau County community and customers throughout the entire region. With Universe Home Services, one call solves it all! Their highly trained technicians offer everything from heating and air conditioning to plumbing to appliance repair and electrical services on Long Island and beyond. Whether you’re dealing with an inefficient heating system, a noisy air conditioner, clogged toilet, broken dishwasher, or outdated electrical service panel, you can get the fast, affordable service you need with Universe Home Services. They go above and beyond to ensure that you’re completely satisfied with the quality of their work, offering service guarantees and parts and labor guarantees on new HVAC installations. As a family owned and operated company, Universe Home Services believes in top-quality customer service. They always treat you and your property with respect, working quickly, cleanly, and efficiently to minimize your inconvenience and leave your home in pristine condition. With more than 60 years of experience under their belt, and a commitment to unmatched quality, honesty, and expertise, Universe Home Services is the trusted name for heating, air conditioning, electrical, plumbing, and appliance repair on Long Island and beyond! Call today!

"This was the worst experience i have ever had with a company. They came and damaged my house and kept us without AC for days. They admitted to the extensive damage and went weeks before attempting to repair it. The services were never fully completed and they were paid over 90% of the job. I disputed the last 10% and provided overwhelming evidence of their negligence. And after a year their last ditch effort was to send collections letters. Don't walk, RUN from this company. I will provide pics and my my experience to anyone who is planning on using this company. Used to be family owned and was amazing. Second they sold it went downhill fast."

Marshall R on June 2025

Since 1954, Universe Home Services has been proudly serving the Nassau County community and customers throughout the entire region. With Universe Home Services, one call solves it all! Their highly trained technicians offer everything from heating and air conditioning to plumbing to appliance repair and electrical services on Long Island and beyond. Whether you’re dealing with an inefficient heating system, a noisy air conditioner, clogged toilet, broken dishwasher, or outdated electrical service panel, you can get the fast, affordable service you need with Universe Home Services. They go above and beyond to ensure that you’re completely satisfied with the quality of their work, offering service guarantees and parts and labor guarantees on new HVAC installations. As a family owned and operated company, Universe Home Services believes in top-quality customer service. They always treat you and your property with respect, working quickly, cleanly, and efficiently to minimize your inconvenience and leave your home in pristine condition. With more than 60 years of experience under their belt, and a commitment to unmatched quality, honesty, and expertise, Universe Home Services is the trusted name for heating, air conditioning, electrical, plumbing, and appliance repair on Long Island and beyond! Call today!

"This was the worst experience i have ever had with a company. They came and damaged my house and kept us without AC for days. They admitted to the extensive damage and went weeks before attempting to repair it. The services were never fully completed and they were paid over 90% of the job. I disputed the last 10% and provided overwhelming evidence of their negligence. And after a year their last ditch effort was to send collections letters. Don't walk, RUN from this company. I will provide pics and my my experience to anyone who is planning on using this company. Used to be family owned and was amazing. Second they sold it went downhill fast."

Marshall R on June 2025

Avatar for MSD Heating & Cooling

MSD Heating & Cooling

4.85(
73
)
•Approved Pro

MSD Heating & Cooling

4.85(
73
)
•Approved Pro
Customers say: Quality work
Recommended by 95% of Angi customers
Recommended by 95% of HomeAdvisor customers
24 years of experience

NOTE I M SORRY FOR ALL , WE NOT DOING ANY TYPE OF PLUMBING, WORK. OIL FURNACE,OIL BOILER , OIL HOT WATER HEATER, WE ARE DOING GAS FURNACE, AND HEAT PUMP SYSTEM HEATING AND AIR CONDITIONING.THAT'S ALL , WE DONT DO BASEBOARD, RADIANT,ANY OIL APPLIANCE OR PLUMBING WORK . THANKS FOR UNDERSTANDING. MSD Heating and Cooling is now offering free estimates for all AC replacements and new installations. We have been in the business for over 18 years and we've been lucky enough to learn a thing or two over those years. We've even worked hard to make sure that our staff knows the most up-to-date information about all of your heating and cooling needs. Keeping you cool and warm is our goal!

"Reasonable price great work friendly and very clean staff"

Huseyin a on May 2022

NOTE I M SORRY FOR ALL , WE NOT DOING ANY TYPE OF PLUMBING, WORK. OIL FURNACE,OIL BOILER , OIL HOT WATER HEATER, WE ARE DOING GAS FURNACE, AND HEAT PUMP SYSTEM HEATING AND AIR CONDITIONING.THAT'S ALL , WE DONT DO BASEBOARD, RADIANT,ANY OIL APPLIANCE OR PLUMBING WORK . THANKS FOR UNDERSTANDING. MSD Heating and Cooling is now offering free estimates for all AC replacements and new installations. We have been in the business for over 18 years and we've been lucky enough to learn a thing or two over those years. We've even worked hard to make sure that our staff knows the most up-to-date information about all of your heating and cooling needs. Keeping you cool and warm is our goal!

"Reasonable price great work friendly and very clean staff"

Huseyin a on May 2022

Avatar for JB Comfort Heat and Air Conditions

JB Comfort Heat and Air Conditions

4.72(
43
)
•Approved Pro

JB Comfort Heat and Air Conditions

4.72(
43
)
•Approved Pro
Super Service Award
Customers say: True professional
Recommended by 93% of Angi customers
Recommended by 93% of HomeAdvisor customers
6 years of experience

I’m a US veteran that continue serving to the community by providing the best service in home repairs. I’m honest man if I can’t do, it I will tell you on the spot. I can fix many things; plumbing, Electrical issues, Decks, heating and Air conditioner, Power washing, Roof patching., Fences repair and install. Text me for free estimates!!

"I hired a pro to fix my heating issue and the tech came 2 days and couldn't resolve the issue . Charged me $100 day one for the visit and charged me $165 day two for a part that was replaced which was working fine. The issue was not with that part and pro replaced it with no reason. Spend couple of hours day two without any resolution . Today I hired a licensed installed and he came and fix the problem within 3 hrs . I wasted 2 half day of my time and also $365"

Tito P on December 2025

I’m a US veteran that continue serving to the community by providing the best service in home repairs. I’m honest man if I can’t do, it I will tell you on the spot. I can fix many things; plumbing, Electrical issues, Decks, heating and Air conditioner, Power washing, Roof patching., Fences repair and install. Text me for free estimates!!

"I hired a pro to fix my heating issue and the tech came 2 days and couldn't resolve the issue . Charged me $100 day one for the visit and charged me $165 day two for a part that was replaced which was working fine. The issue was not with that part and pro replaced it with no reason. Spend couple of hours day two without any resolution . Today I hired a licensed installed and he came and fix the problem within 3 hrs . I wasted 2 half day of my time and also $365"

Tito P on December 2025

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