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Find Geothermal heating or cooling system installers in Mastic

Avatar for ADVANCED AIR CONDITIONING, HEATING & REFRIGERATION

ADVANCED AIR CONDITIONING, HEATING & REFRIGERATION

1158 Suffolk Ave C
4.48(
66
)
Approved Pro

ADVANCED AIR CONDITIONING, HEATING & REFRIGERATION

1158 Suffolk Ave C
4.48(
66
)
Approved Pro
Customers say: Quality work
1 years of experience
Free onsite estimate

Advanced Air Conditioning, Heating & Refrigeration is a locally owned and family-operated HVAC company proudly serving Nassau and Suffolk Counties on Long Island. With 43 years of experience, our certified technicians provide expert AC repair, furnace repair, heating, cooling, and maintenance services to keep your home or business comfortable year-round. From emergency repairs to seasonal maintenance and energy-efficient upgrades, we deliver fast, reliable solutions backed by honesty and quality workmanship. Rated 4.7★ on Google Business and holding a BBB A- rating, we are a trusted local HVAC contractor committed to keeping your system operating safely, efficiently, and worry-free for years

"prompt"

philip r on October 2022

Advanced Air Conditioning, Heating & Refrigeration is a locally owned and family-operated HVAC company proudly serving Nassau and Suffolk Counties on Long Island. With 43 years of experience, our certified technicians provide expert AC repair, furnace repair, heating, cooling, and maintenance services to keep your home or business comfortable year-round. From emergency repairs to seasonal maintenance and energy-efficient upgrades, we deliver fast, reliable solutions backed by honesty and quality workmanship. Rated 4.7★ on Google Business and holding a BBB A- rating, we are a trusted local HVAC contractor committed to keeping your system operating safely, efficiently, and worry-free for years

"prompt"

philip r on October 2022


Avatar for Natural Breeze LLC.

Natural Breeze LLC.

5.00(
7
)
Approved Pro

Natural Breeze LLC.

5.00(
7
)
Approved Pro
Customers say: Quick response
Recommended by 100% of Angi customers
Recommended by 100% of HomeAdvisor customers
362 local quotes requested

Heating and A/C business is locally owned and operated. We feel invested in our clients and constantly strive for customer satisfaction. Call or message us to schedule an estimate today! 631-652-8910

"Great. Natural Breeze's Luis and team arrived promptly and troubleshooted the problem and resolved it efficiently at a fair price. I will not hesitate to call them again and recommend them to others."

Anthony L on October 2025

Heating and A/C business is locally owned and operated. We feel invested in our clients and constantly strive for customer satisfaction. Call or message us to schedule an estimate today! 631-652-8910

"Great. Natural Breeze's Luis and team arrived promptly and troubleshooted the problem and resolved it efficiently at a fair price. I will not hesitate to call them again and recommend them to others."

Anthony L on October 2025


Avatar for JB Comfort Heat and Air Conditions

JB Comfort Heat and Air Conditions

4.80(
40
)
Approved Pro

JB Comfort Heat and Air Conditions

4.80(
40
)
Approved Pro
Customers say: Quick response
Recommended by 97% of Angi customers
Recommended by 97% of HomeAdvisor customers
1054 local quotes requested

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!!

"Joe is so helpful and easy to work with! Glad to have met him, will be using his services moving forward."

Taryn P on October 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!!

"Joe is so helpful and easy to work with! Glad to have met him, will be using his services moving forward."

Taryn P on October 2025


Avatar for KS Mechanical Services

KS Mechanical Services

481 Johnson Ave
4.67(
12
)
Approved Pro

KS Mechanical Services

481 Johnson Ave
4.67(
12
)
Approved Pro
Customers say: Quick response
Recommended by 91% of Angi customers
Recommended by 91% of HomeAdvisor customers
450 local quotes requested

At KS Mechanical Services we take great pride in our experience, expertise, quality and customer service we provide to meet the consumer’s needs. It is our mission to provide excellent workmanship and complete customer satisfaction from start to completion of a project. In order to understand the needs and expectations of our customers, we take great care to work and communicate with every customer in a professional manner. KS Mechanical's expertly trained staff will work with you to design new systems for your home or office to keep within your budget. Our reputation is based on service, safety and quality, regardless of how large or small the job. **10% SENIOR CITIZEN DISCOUNT **FREE ESTIMATES FOR NEW INSTALLATIONS AND REPLACEMENTS **FINANCING AVAILABLE

"Excellent! Exuded confidence a dedication.Lance did a great job. Very kind as well."

Sarah P on May 2025

At KS Mechanical Services we take great pride in our experience, expertise, quality and customer service we provide to meet the consumer’s needs. It is our mission to provide excellent workmanship and complete customer satisfaction from start to completion of a project. In order to understand the needs and expectations of our customers, we take great care to work and communicate with every customer in a professional manner. KS Mechanical's expertly trained staff will work with you to design new systems for your home or office to keep within your budget. Our reputation is based on service, safety and quality, regardless of how large or small the job. **10% SENIOR CITIZEN DISCOUNT **FREE ESTIMATES FOR NEW INSTALLATIONS AND REPLACEMENTS **FINANCING AVAILABLE

"Excellent! Exuded confidence a dedication.Lance did a great job. Very kind as well."

Sarah P on May 2025


Avatar for MSD Heating & Cooling

MSD Heating & Cooling

3 Champlin Ave
4.85(
73
)
Approved Pro

MSD Heating & Cooling

3 Champlin Ave
4.85(
73
)
Approved Pro
Customers say: Quality work
Recommended by 95% of Angi customers
Recommended by 95% of HomeAdvisor customers
1602 local quotes requested

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 All Weather Heating & Cooling

All Weather Heating & Cooling

35 COURT ST
4.68(
60
)
Approved Pro

All Weather Heating & Cooling

35 COURT ST
4.68(
60
)
Approved Pro
Customers say: Super punctual
Recommended by 91% of Angi customers
Recommended by 91% of HomeAdvisor customers
1533 local quotes requested

All Weather Heating & Cooling has been serving Nassau & Suffolk County of Long Island since 1969. We are now celebrating 54 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 54 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


Bailey Remodeling

Atherton
5.00(
6
)

Bailey Remodeling

Atherton
5.00(
6
)
Customers say: Quick response
Recommended by 100% of Angi customers
Recommended by 100% of HomeAdvisor customers

We are a family company that offers quality craftsmenship at an affordable price. We believe in always doing our very best. That means going above and beyond to surpass expectations and make sure your home is everything you want it to be.

We are a family company that offers quality craftsmenship at an affordable price. We believe in always doing our very best. That means going above and beyond to surpass expectations and make sure your home is everything you want it to be.


Avatar for Preferred Choice Cleaning Services

Preferred Choice Cleaning Services

25 Lincoln Rd
5.00(
290
)

Preferred Choice Cleaning Services

25 Lincoln Rd
5.00(
290
)
Customers say: True professional
Recommended by 99% of Angi customers
Recommended by 99% of HomeAdvisor customers

Long Islands Premiere Family Owned & Operated Exterior Cleaning Company. We have been providing honest, reliable service to our neighbors on Long Island for over 24 years. Our highly trained team will not only provide great service, they will always be respectful to you, your family, your pets, your property and your neighbors. Look no further if you want to hire a company that delivers on what was promised to you and will exceed all of your expectations. Here at "Preferred Choice Cleaning Services" we do not expect or accept deposits or final payment until you are 100% thrilled with the services provided!

"Very pleased with this company. Professional, timely. Our home, porch, shed, and stairwell are sparkling. The two workers were polite and efficient and when I questioned why my office window looked like the soap was not rinsed he advised that they rinsed it twice (2nd story) and offered to clean it again. It is now perfect. This is a difficult window for us to access."

Kathy G on June 2024

Long Islands Premiere Family Owned & Operated Exterior Cleaning Company. We have been providing honest, reliable service to our neighbors on Long Island for over 24 years. Our highly trained team will not only provide great service, they will always be respectful to you, your family, your pets, your property and your neighbors. Look no further if you want to hire a company that delivers on what was promised to you and will exceed all of your expectations. Here at "Preferred Choice Cleaning Services" we do not expect or accept deposits or final payment until you are 100% thrilled with the services provided!

"Very pleased with this company. Professional, timely. Our home, porch, shed, and stairwell are sparkling. The two workers were polite and efficient and when I questioned why my office window looked like the soap was not rinsed he advised that they rinsed it twice (2nd story) and offered to clean it again. It is now perfect. This is a difficult window for us to access."

Kathy G on June 2024


CB Plumbing and Heating

No reviews yet

CB Plumbing and Heating

No reviews yet
Emergency services offered

Call us today! Available 24/7/365. Ready willing and able to help with whatever problem that might arise day or night. Call us today to schedule an appointment.

Call us today! Available 24/7/365. Ready willing and able to help with whatever problem that might arise day or night. Call us today to schedule an appointment.


Chip Tech Heating & Cooling Services

155 Union Place
No reviews yet

Chip Tech Heating & Cooling Services

155 Union Place
No reviews yet
29 years of experience

Heating, air conditioning, and refrigeration services you can trust. Family-run business serving NJ and NYC boroughs since 1996. Consistently ranked 5 stars for exceptional service! English | Korean | Spanish Open M-F 9-6 and weekends for emergencies only. Residential and commercial. Call or email Alex for a free estimate or any questions you have! chiptechcorp@gmail.com or (201) 541-1600.

Heating, air conditioning, and refrigeration services you can trust. Family-run business serving NJ and NYC boroughs since 1996. Consistently ranked 5 stars for exceptional service! English | Korean | Spanish Open M-F 9-6 and weekends for emergencies only. Residential and commercial. Call or email Alex for a free estimate or any questions you have! chiptechcorp@gmail.com or (201) 541-1600.

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