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Top-Rated Geothermal heating or cooling system installers in Manhasset - Updated Nov 2026

Avatar for MSD Heating & Cooling
MSD Heating & Cooling
4.9(
74
)
Geothermal Heating or Cooling System - Install

Serving Manhasset, NY and surrounding areas

Approved

In business since 2002

Free estimates

Emergency services offered

"I enthusiastically recommend this company. Mehmet was always prompt for appointments and texted to let you know he was on his way. His crew worked from 7 am to 7 pm and got our new central A/C system installed in one day during a heat wave. Very professional outfit, polite and cheerful to have around."
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+1

2 neighbors recently requested a quote
Recommended by96%of homeowners
Avatar for All Weather Heating & Cooling
All Weather Heating & Cooling
4.5(
70
)
Geothermal Heating or Cooling System - Install

Serving Manhasset, NY and surrounding areas

Approved

In business since 1969

Free estimates

Emergency services offered

"I was very happy with my service call today! The repairman, Scott, was knowledgeable and pleasant and wore a mask and gloves throughout., so I felt safe, despite the pandemic. He serviced both of my central air systems and diagnosed the problem with the malfunctioning one and fixed it. By the time he left my house was already a much more pleasant place to be!"
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+13

Response time3 days
7 neighbors recently requested a quote
Recommended by94%of homeowners
Avatar for Panda HVAC Inc
Panda HVAC Inc
4.8(
39
)
Geothermal Heating or Cooling System - Install

Serving Manhasset, NY and surrounding areas

Approved

In business since 2013

Free estimates

Warranties offered

"Wonderful. I called PANDA and they came out in 2 days and did the work in 1. These brothers treat you right and do the right job! They did my central heat repairs 2 1/2 years ago and they were the first ones I called again when the air went and I was right to do so. Thank you Serge and Mark!"
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+21

Response time2 days
4 neighbors recently requested a quote
Recommended by93%of homeowners
Avatar for Arvada Mechanical Corp.
Arvada Mechanical Corp.
4.8(
18
)
Geothermal Heating or Cooling System - Install

Serving Manhasset, NY and surrounding areas

Approved

In business since 2010

Free estimates

Emergency services offered

"I spoke with Mike and sent a picture of the problem I was having with our thermostat. He assured me that they could handle it while others I spoke with were unsure if they could do it or not. He confirmed for 8:30 the next morning, called me 20 minutes before Dan showed up and did a terrific job. My wife was home with him and said he was professional, knowledgeable and extremely nice. We’re so please that we’re having them assess our A/C unit come the spring. Highly recommend!!"
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+4

Response time8 hrs
Recommended by87%of homeowners
Avatar for Elm Air Conditioning Corp
Elm Air Conditioning Corp
4.4(
82
)
Geothermal Heating or Cooling System - Install

Serving Manhasset, 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."
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14 neighbors recently requested a quote
Recommended by77%of homeowners
Neviula mech
New to Angi
Geothermal Heating or Cooling System - Install

Serving Manhasset, NY and surrounding areas

Approved

Free estimates

Warranties offered

Small jobs welcome

With over 20 years of hands-on experience in the plumbing industry, and 14 years in HVAC I bring a strong foundation of technical expertise, problem-solving, and customer-focused service to every project. Over time, I expanded my skill set into HVAC, working extensively in both commercial and residential environments.\nI specialize in heat pump applications, including installation, maintenance, and system optimization for energy efficiency and long-term performance. My background allows me to approach each job with a comprehensive understanding of how plumbing and HVAC systems work together, ensuring reliable, high-quality results.\nI take pride in delivering dependable service, clear communication, and workmanship that stands the test of time.

Avatar for Harli Comfort
Harli Comfort
5.0(
20
)
Geothermal Heating or Cooling System - Install

Serving Manhasset, NY and surrounding areas

In business since 2022

Free estimates

Emergency services offered

"The process of meeting for an estimate through installation was seemless! The 2 men did an excellent job installing my mini split and cleaned up before leaving. I highly recommend this company and would definitely use them again in the future!"
Response time2 days
Response rate100%
Recommended by95%of homeowners
Avatar for HVAC Plus Inc
HVAC Plus Inc
5.0(
25
)
Geothermal Heating or Cooling System - Install

Serving Manhasset, NY and surrounding areas

In business since 2004

Free estimates

Credit card accepted

"I had a very positive experience with HVAC Plus. I highly recommend them for installation of air conditioning or heating systems for your home. My wife and I recently moved into a new home with our two (very young) children. Suffice to say the entire moving process has been really crazy, especially considering that 2021 (and now 2022) has made all kinds of basic things, related to moving your family to a new home, really challenging. The air conditioning & heating solution that HVAC Plus installed into our home was one of the few aspects of our crazy move-in that was totally seamless. The team that came on site to do the install was prompt, friendly, and efficient. They kept me in the loop from time to time as to what they were doing so that really kept my mind at ease. My installation required work to be done inside the home as well as on the rooftop. There was absolutely zero debris or any kind of refuse left over. I would 100% recommend HVAC Plus to any person who wants to get an AC and/or Heating system installed in their home. They provide an amazing level of service."
Recommended by100%of homeowners
Avatar for GT DYNAMICS ELECTRIC INC
GT DYNAMICS ELECTRIC INC
4.9(
31
)
Geothermal Heating or Cooling System - Install

Serving Manhasset, NY and surrounding areas

In business since 2021

Emergency services offered

Credit card accepted

"The expertise GT Dynamics Electric is impeccable. The team was able to install back up generator to provide temporary electric while completing electrical installations to my home. I would sincerely recommend this Team as well I will always call on them first. GT Dynamics Electric is the way."
Panel upgrade
Ductless mini split installation
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+21

Recommended by96%of homeowners
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