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    Verified heating and air conditioning services reviews

Find Heating and air conditioning pros in Grayson

Avatar for Casteel Heating, Cooling, Plumbing & Electrical

Casteel Heating, Cooling, Plumbing & Electrical

4.74(
88
)
Approved Pro

Casteel Heating, Cooling, Plumbing & Electrical

4.74(
88
)
Approved Pro
Customers say: Super punctual
Recommended by 90% of Angi customers
Recommended by 90% of HomeAdvisor customers
428 local quotes requested

At Casteel Heating, Cooling, Plumbing and Electrical, we provide world-class service to our customers, just as we have since 1987. Founded by Jan and Bob Casteel, our company was built on honesty and customer-focused care. To this day, we offer our Amazing Care Guarantee: We’ll take amazing care of you or we’ll refund your service call fee. Our expert team of plumbers, electricians, HVAC technicians, and system design managers performs top-quality repairs and installations while ensuring you are completely satisfied with your entire customer service. Because we offer so many services under one roof, you’ll save time and money by making one phone call to Casteel. Formerly: Knight Air Conditioning and Heating Company

"Thumbs up for the construction at my residence, a three story elevator shaft"

Diana D on October 2024

At Casteel Heating, Cooling, Plumbing and Electrical, we provide world-class service to our customers, just as we have since 1987. Founded by Jan and Bob Casteel, our company was built on honesty and customer-focused care. To this day, we offer our Amazing Care Guarantee: We’ll take amazing care of you or we’ll refund your service call fee. Our expert team of plumbers, electricians, HVAC technicians, and system design managers performs top-quality repairs and installations while ensuring you are completely satisfied with your entire customer service. Because we offer so many services under one roof, you’ll save time and money by making one phone call to Casteel. Formerly: Knight Air Conditioning and Heating Company

"Thumbs up for the construction at my residence, a three story elevator shaft"

Diana D on October 2024


Avatar for TE Certified Electrical, Plumbing, Heating & Cooling

TE Certified Electrical, Plumbing, Heating & Cooling

4.54(
13
)
Approved Pro

TE Certified Electrical, Plumbing, Heating & Cooling

4.54(
13
)
Approved Pro
Customers say: Quick response
55 local quotes requested
27 years of experience

TE Certified Electrical, Plumbing, Heating & Cooling understands there is never a great time to need a home repair. That's why we make scheduling easy, arrive in three-hour arrival windows, drive fully stocked trucks, give flat rate pricing, and back our work with a lifetime workmanship guarantee. Services offered: Residential Electrical, Plumbing, Heating and Cooling - Inspection, Repair, Replacement, Maintenance. Electrical - Rewiring, Outlets, and Switches, Whole House Back-Up Generators, Indoor/Outdoor Lighting, Car Chargers, Surge Protection, Ethernet & Cable Installation. Plumbing - Water Lines, Water Heaters, Tankless Water Heaters, Fixtures and Faucets, Garbage Disposals, Sewer Lines, Pressure Regulators. HVAC - Air Conditioners, Furnaces, Air Handlers, Heat Pumps, Ductless Heaters, Indoor Air Quality

"Knocked it out quick at a great price. Great service."

Matt G on January 2025

TE Certified Electrical, Plumbing, Heating & Cooling understands there is never a great time to need a home repair. That's why we make scheduling easy, arrive in three-hour arrival windows, drive fully stocked trucks, give flat rate pricing, and back our work with a lifetime workmanship guarantee. Services offered: Residential Electrical, Plumbing, Heating and Cooling - Inspection, Repair, Replacement, Maintenance. Electrical - Rewiring, Outlets, and Switches, Whole House Back-Up Generators, Indoor/Outdoor Lighting, Car Chargers, Surge Protection, Ethernet & Cable Installation. Plumbing - Water Lines, Water Heaters, Tankless Water Heaters, Fixtures and Faucets, Garbage Disposals, Sewer Lines, Pressure Regulators. HVAC - Air Conditioners, Furnaces, Air Handlers, Heat Pumps, Ductless Heaters, Indoor Air Quality

"Knocked it out quick at a great price. Great service."

Matt G on January 2025


Avatar for Keep Smiling Plumbing & Electric

Keep Smiling Plumbing & Electric

4.66(
133
)
Approved Pro

Keep Smiling Plumbing & Electric

4.66(
133
)
Approved Pro
Customers say: Super punctual
1575 local quotes requested
40 years of experience

Keep Smiling Plumbing Electric Heating and Cooling is a family-owned, family-operated, full-service plumbing electric and HVAC business, serving Gwinnett County, Georgia. We are Master Plumbers and members of the Plumbing & Mechanical Association of Georgia. Keep Smiling Plumbing & Electric is there when you need us, ready to take care of any problem that you may have with your plumbing or electrical systems. We also have available a full line of quality replacement products if you want to upgrade or update.

"When facing unexpected plumbing issues, Keep Smiling provided truly excellent service. Their Technician was punctual, transparent, and highly skilled."

Dorothea G on November 2025

Keep Smiling Plumbing Electric Heating and Cooling is a family-owned, family-operated, full-service plumbing electric and HVAC business, serving Gwinnett County, Georgia. We are Master Plumbers and members of the Plumbing & Mechanical Association of Georgia. Keep Smiling Plumbing & Electric is there when you need us, ready to take care of any problem that you may have with your plumbing or electrical systems. We also have available a full line of quality replacement products if you want to upgrade or update.

"When facing unexpected plumbing issues, Keep Smiling provided truly excellent service. Their Technician was punctual, transparent, and highly skilled."

Dorothea G on November 2025


Avatar for R Wiley Heating & Air

R Wiley Heating & Air

4.68(
1,045
)
Approved Pro

R Wiley Heating & Air

4.68(
1,045
)
Approved Pro
Customers say: Super punctual
143 local quotes requested
39 years of experience

Super Service Award Winner for 2024-2013 | HVAC Contractor | Owner Operated by Robby Wiley | We are a local Heating and Air Conditioning company in the metro Atlanta and surrounding areas. We offer FREE ESTIMATES on installations only and financing options including 18 months same as cash on all equipment and 60 months same as cash for certain equipment. We provide services to residential and small commercial customers. I have been in the industry for 30 years and enjoy helping my customers maintain their equipment and overcome issues with their equipment. I will work with you and offer recommendations based on your needs. I will make myself available to answer questions you may have without requiring a service call, again I enjoy what I do.

"Good."

Brent L on April 2025

Super Service Award Winner for 2024-2013 | HVAC Contractor | Owner Operated by Robby Wiley | We are a local Heating and Air Conditioning company in the metro Atlanta and surrounding areas. We offer FREE ESTIMATES on installations only and financing options including 18 months same as cash on all equipment and 60 months same as cash for certain equipment. We provide services to residential and small commercial customers. I have been in the industry for 30 years and enjoy helping my customers maintain their equipment and overcome issues with their equipment. I will work with you and offer recommendations based on your needs. I will make myself available to answer questions you may have without requiring a service call, again I enjoy what I do.

"Good."

Brent L on April 2025


Avatar for Bardi Heating, Cooling & Plumbing

Bardi Heating, Cooling & Plumbing

4.07(
85
)
Approved Pro

Bardi Heating, Cooling & Plumbing

4.07(
85
)
Approved Pro
Customers say: Super punctual
36 years of experience
Free onsite estimate

Family owned since 1989, Bardi is rated A+ by the Better Business Bureau, was awarded Business of the Year in 2013 by the Gwinnett Chamber and received Best Customer Service by the BBB. Bardi is heavily involved with the community and offers free electronics pick-up and recycling during service calls to benefit Nobis Works, a nonprofit that supports people with disabilities seeking to join the workforce.

"I requested a HVAC tech come out to my home as my AC was not working properly. The tech recommended that I get a new AC. He told me he would have his sales rep come out to talk to me about the options I would have as far as replacing it. Their sales rep showed up. His name is Jimmy, and he told me all these great things about Bardi and their products. We came to an agreement of my buying a cheap HVAC system as I was trying to save money. It would cost me 12,000 dollars for the system. The next day April 5th, 2025 their install tech came out and installed the equipment. I was at work at the time, but I had a family member there. I returned home to find out the lower level of my home was not being cooled, and they had left part of my old HVAC system connected to the new system. It was a burnt up disconnect that should have been replaced and was a major part of what was wrong with my old system. Also they used a panel cover from my old system instead of new. I asked Jimmy to come and pick up the equipment which it states I have three days to reject the equipment in the contract. He expressed that I couldn't reject the equipment after it was installed. They had a tech come out the next day April 6, 2025 to fix the downstairs not working, and he fixed it. The next day it happened to be cold outside so I turned on the heat. No heat was coming out of the vents just cool air and the fan unit was running extremely loud outside. It was so loud it sounded like the fan unit was in my room on the second floor, so I turned it off. When I did turn off the fan unit made a horrible exploding noise. Once again I called Bardi and asked them to come get their HVAC system, they refused. Crystal the customer care rep is who I spoke with. She scheduled another repair tech to come out on April 12th to look at the HVAC system. I waited the entire day and no one showed up. I finally called and the receptionist told me it was their employee appreciation day no one would be coming. Monday I received a call from Crystal their customer care rep stating she text me and told me no one would be coming, but I never received that text. She scheduled another appointment for Easter Sunday. I stayed home Easter Sunday instead of going to church, and no one showed up again. I've stated each and every time I've spoken with someone from Bardi that I don't want to do business with them but they are basically trying to force me to keep their equipment at this point. This is by far the worst customer service experience I've ever had. These people are trying to rip their customers off basically. This should be illegal. I've reach out to get a lawyer to force them to remove their equipment from my home. Stay away from these people at all cost."

Sean S on April 2025

Family owned since 1989, Bardi is rated A+ by the Better Business Bureau, was awarded Business of the Year in 2013 by the Gwinnett Chamber and received Best Customer Service by the BBB. Bardi is heavily involved with the community and offers free electronics pick-up and recycling during service calls to benefit Nobis Works, a nonprofit that supports people with disabilities seeking to join the workforce.

"I requested a HVAC tech come out to my home as my AC was not working properly. The tech recommended that I get a new AC. He told me he would have his sales rep come out to talk to me about the options I would have as far as replacing it. Their sales rep showed up. His name is Jimmy, and he told me all these great things about Bardi and their products. We came to an agreement of my buying a cheap HVAC system as I was trying to save money. It would cost me 12,000 dollars for the system. The next day April 5th, 2025 their install tech came out and installed the equipment. I was at work at the time, but I had a family member there. I returned home to find out the lower level of my home was not being cooled, and they had left part of my old HVAC system connected to the new system. It was a burnt up disconnect that should have been replaced and was a major part of what was wrong with my old system. Also they used a panel cover from my old system instead of new. I asked Jimmy to come and pick up the equipment which it states I have three days to reject the equipment in the contract. He expressed that I couldn't reject the equipment after it was installed. They had a tech come out the next day April 6, 2025 to fix the downstairs not working, and he fixed it. The next day it happened to be cold outside so I turned on the heat. No heat was coming out of the vents just cool air and the fan unit was running extremely loud outside. It was so loud it sounded like the fan unit was in my room on the second floor, so I turned it off. When I did turn off the fan unit made a horrible exploding noise. Once again I called Bardi and asked them to come get their HVAC system, they refused. Crystal the customer care rep is who I spoke with. She scheduled another repair tech to come out on April 12th to look at the HVAC system. I waited the entire day and no one showed up. I finally called and the receptionist told me it was their employee appreciation day no one would be coming. Monday I received a call from Crystal their customer care rep stating she text me and told me no one would be coming, but I never received that text. She scheduled another appointment for Easter Sunday. I stayed home Easter Sunday instead of going to church, and no one showed up again. I've stated each and every time I've spoken with someone from Bardi that I don't want to do business with them but they are basically trying to force me to keep their equipment at this point. This is by far the worst customer service experience I've ever had. These people are trying to rip their customers off basically. This should be illegal. I've reach out to get a lawyer to force them to remove their equipment from my home. Stay away from these people at all cost."

Sean S on April 2025


Avatar for Cool Air Mechanical LLC

Cool Air Mechanical LLC

4.75(
267
)
Approved Pro

Cool Air Mechanical LLC

4.75(
267
)
Approved Pro
Customers say: Super punctual
Recommended by 93% of Angi customers
Recommended by 93% of HomeAdvisor customers
187 local quotes requested

For years, Cool Air Mechanical has been an expert provider of heating, cooling, plumbing, indoor air quality, generators and electrical services throughout the greater Atlanta region. If you find that it is time to have a new heating or cooling system installed in your home, or if you need someone to take over maintenance for you HVAC system in Atlanta, call us today and learn more about our full range of services. Each of our technicians is chosen based on their ability to provide the utmost in service to each of the customers they visit and they are prepared for nearly any issue that could arise. If you are interested in getting more out of your heating and cooling systems in Atlanta or the surrounding area, give us a call today. Additional website: www.770coolair.com

"Cool Air Mechanical LLC delivered exceptional service with our water heater installation! From the moment we scheduled the appointment, their team was professional, punctual, and incredibly knowledgeable. They assessed our needs thoroughly and guided us to the perfect unit for our home. Installation was seamless—efficient, clean, and done with care. We appreciated the technicians’ attention to detail and their willingness to explain everything clearly. What truly stood out was their commitment to customer satisfaction. They even followed up to ensure everything was running perfectly! It’s rare to find a company that combines technical expertise with genuine courtesy. Highly recommend Cool Air Mechanical for anyone in need of top-notch HVAC or plumbing services. They’ve earned our trust and future business!"

Carli S on July 2025

For years, Cool Air Mechanical has been an expert provider of heating, cooling, plumbing, indoor air quality, generators and electrical services throughout the greater Atlanta region. If you find that it is time to have a new heating or cooling system installed in your home, or if you need someone to take over maintenance for you HVAC system in Atlanta, call us today and learn more about our full range of services. Each of our technicians is chosen based on their ability to provide the utmost in service to each of the customers they visit and they are prepared for nearly any issue that could arise. If you are interested in getting more out of your heating and cooling systems in Atlanta or the surrounding area, give us a call today. Additional website: www.770coolair.com

"Cool Air Mechanical LLC delivered exceptional service with our water heater installation! From the moment we scheduled the appointment, their team was professional, punctual, and incredibly knowledgeable. They assessed our needs thoroughly and guided us to the perfect unit for our home. Installation was seamless—efficient, clean, and done with care. We appreciated the technicians’ attention to detail and their willingness to explain everything clearly. What truly stood out was their commitment to customer satisfaction. They even followed up to ensure everything was running perfectly! It’s rare to find a company that combines technical expertise with genuine courtesy. Highly recommend Cool Air Mechanical for anyone in need of top-notch HVAC or plumbing services. They’ve earned our trust and future business!"

Carli S on July 2025


Avatar for Renovations LLC

Renovations LLC

5.00(
2
)
Approved Pro

Renovations LLC

5.00(
2
)
Approved Pro
Customers say: Quick response
Recommended by 100% of Angi customers
Recommended by 100% of HomeAdvisor customers
267 local quotes requested

We have the experience and dedication to get the job done right! Specializing in Handyman services; We guarantee your satisfaction, and we won't leave until the job is done right. We pride ourselves on the quality work we provide, while delivering great customer service! Call or click for your FREE estimate today!

"Wow!!!! all I can say is amazing customer service, very professional, always on time. His work is exceptionally to say the least. I would hire this company again for all my future renovations."

Flavia B on September 2023

We have the experience and dedication to get the job done right! Specializing in Handyman services; We guarantee your satisfaction, and we won't leave until the job is done right. We pride ourselves on the quality work we provide, while delivering great customer service! Call or click for your FREE estimate today!

"Wow!!!! all I can say is amazing customer service, very professional, always on time. His work is exceptionally to say the least. I would hire this company again for all my future renovations."

Flavia B on September 2023


Aire Central Heating & Cooling, Inc.

4.85(
38
)
Approved Pro

Aire Central Heating & Cooling, Inc.

4.85(
38
)
Approved Pro
Customers say: Quick response
Recommended by 92% of Angi customers
Recommended by 92% of HomeAdvisor customers
12 local quotes requested

Aire Central Heating & Cooling, Inc.,is building customers for life, by offering the best service at the best value. Our heating and air conditioning company wants to solve all of your home comfort needs. Aire Central Heating & Cooling, Inc., is locally owned, provides HVAC repair and installation in Snellville, Lawrenceville, Decatur, Lilburn and throughout the Atlanta area. You can count on excellent service based on old fashioned values. Over the past 19 years, our family owned heating and air conditioning company has become known for providing quality service and products. Our technicians provide a fast response to get your HVAC system back up and running as soon as possible. We specialize in top heating and cooling systems. Our heating and air conditioning company is experienced in making repairs as well as installing A/C systems for home or business use.

"Hired these guys to replace my original heating and A/C unit. They seem to have done a good job--it works fine. Furnace unit has filter and housing is a little wonky, but it seems to work. They also installed a fancy thermostat which can be read and operated by my phone over the internet. I wasn't too impressed with the thing at first, but I'm away for periods and I've been very pleased with it."

Ted P on December 2024

Aire Central Heating & Cooling, Inc.,is building customers for life, by offering the best service at the best value. Our heating and air conditioning company wants to solve all of your home comfort needs. Aire Central Heating & Cooling, Inc., is locally owned, provides HVAC repair and installation in Snellville, Lawrenceville, Decatur, Lilburn and throughout the Atlanta area. You can count on excellent service based on old fashioned values. Over the past 19 years, our family owned heating and air conditioning company has become known for providing quality service and products. Our technicians provide a fast response to get your HVAC system back up and running as soon as possible. We specialize in top heating and cooling systems. Our heating and air conditioning company is experienced in making repairs as well as installing A/C systems for home or business use.

"Hired these guys to replace my original heating and A/C unit. They seem to have done a good job--it works fine. Furnace unit has filter and housing is a little wonky, but it seems to work. They also installed a fancy thermostat which can be read and operated by my phone over the internet. I wasn't too impressed with the thing at first, but I'm away for periods and I've been very pleased with it."

Ted P on December 2024


Avatar for Armato Heating and Air

Armato Heating and Air

5.00(
14
)
Approved Pro

Armato Heating and Air

5.00(
14
)
Approved Pro
Customers say: Quick response
650 local quotes requested
13 years of experience

HVAC Installation Experts - Armato Heating and Air With over 25 years of dedicated experience in HVAC installations, Armato Heating and Air has established itself as a trusted name in the Atlanta metro region. As an exclusive Daikin dealer, we proudly offer industry-leading HVAC solutions that ensure the highest quality & comfort, and efficiency for your home. Our team of HVAC installation experts is committed to delivering professional, reliable, and top-tier service. Whether you want to upgrade your existing HVAC system, replace an outdated unit, or install a new heating and cooling system, we have the expertise and skills to get the job done right the first time. At Armato Heating and Air, we specialize in installing high-efficiency Daikin HVAC systems, which are renowned for their innovative technology and exceptional performance. Our exclusive partnership with Daikin offers some of the most comprehensive warranty packages, giving you peace of mind and long-lasting comfort. Ask your HVAC designer about the available rebates & our 12/12/12 WARRANTY! We take pride in providing our clients with customized HVAC solutions that fit their unique needs and preferences. From residential HVAC installations to commercial projects, our certified technicians use the latest tools and techniques to ensure optimal performance and energy savings. Choose Armato Heating and Air for your next HVAC installation and experience the difference that quality and experience can make. Contact us today to schedule a consultation or learn more about our Daikin products and services!

"He was on time and did a great job for me. "

Wyvonne E on November 2025

HVAC Installation Experts - Armato Heating and Air With over 25 years of dedicated experience in HVAC installations, Armato Heating and Air has established itself as a trusted name in the Atlanta metro region. As an exclusive Daikin dealer, we proudly offer industry-leading HVAC solutions that ensure the highest quality & comfort, and efficiency for your home. Our team of HVAC installation experts is committed to delivering professional, reliable, and top-tier service. Whether you want to upgrade your existing HVAC system, replace an outdated unit, or install a new heating and cooling system, we have the expertise and skills to get the job done right the first time. At Armato Heating and Air, we specialize in installing high-efficiency Daikin HVAC systems, which are renowned for their innovative technology and exceptional performance. Our exclusive partnership with Daikin offers some of the most comprehensive warranty packages, giving you peace of mind and long-lasting comfort. Ask your HVAC designer about the available rebates & our 12/12/12 WARRANTY! We take pride in providing our clients with customized HVAC solutions that fit their unique needs and preferences. From residential HVAC installations to commercial projects, our certified technicians use the latest tools and techniques to ensure optimal performance and energy savings. Choose Armato Heating and Air for your next HVAC installation and experience the difference that quality and experience can make. Contact us today to schedule a consultation or learn more about our Daikin products and services!

"He was on time and did a great job for me. "

Wyvonne E on November 2025


Avatar for Gainesville Economy Heating & Air

Gainesville Economy Heating & Air

5.00(
10
)
Approved Pro

Gainesville Economy Heating & Air

5.00(
10
)
Approved Pro
Customers say: Quick response
Recommended by 100% of Angi customers
Recommended by 100% of HomeAdvisor customers
57 local quotes requested

We are in the HVAC field for more than 35 years and our name has become a synonym for quality and professional heating and air conditioning works. Additional Service Areas: Gwinnett, Hall, Henry, Paulding, Rockdale, Habersham, Lumpkin, White & Portions of Banks County. Ask for details. Call 7067782861 for service in Cleveland, Clarksville, and Cornelia.

"The guys from Economy Heating and Air helped us with a emergency situation with our old furnace, including a replacement of the unit with a new heat pump. They were the only company I called that could come out immediately to look at the problem. Overall, I felt very comfortable with their HVAC knowledge. They answered all of my questions and left the jobsite clean after their work. I highly recommend."

Steve N on January 2025

We are in the HVAC field for more than 35 years and our name has become a synonym for quality and professional heating and air conditioning works. Additional Service Areas: Gwinnett, Hall, Henry, Paulding, Rockdale, Habersham, Lumpkin, White & Portions of Banks County. Ask for details. Call 7067782861 for service in Cleveland, Clarksville, and Cornelia.

"The guys from Economy Heating and Air helped us with a emergency situation with our old furnace, including a replacement of the unit with a new heat pump. They were the only company I called that could come out immediately to look at the problem. Overall, I felt very comfortable with their HVAC knowledge. They answered all of my questions and left the jobsite clean after their work. I highly recommend."

Steve N on January 2025

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Heating and Air Conditioning questions, answered by experts

Traditional central air conditioning systems require ductwork to circulate air throughout the home. Alternatively, you can add air conditioning with a mini-split ductless air conditioning system, which can be just as energy efficient as a central air conditioner. This type of system consists of two units–an outside unit that holds the compressor and condenser and an indoor unit that holds an air-handler. With multi-zone ductless systems, there are multiple indoor air handlers tied to a single outdoor compressor/condenser, allowing the system to cool multiple rooms.

As mentioned above, not all HVAC Schrader valves are necessarily the same. While the valve core and pin or spring size on Schrader valves used for HVAC are generally similar, the valves are not all universal and interchangeable. The size of Schrader valves varies depending on whether it's used in an air conditioner, bicycle tire, or motor vehicle tire.

Yes, a frozen AC unit can affect your indoor air quality since the reduced airflow won't be as effective at removing air pollutants, like dust and other allergens. Additionally, ice around the unit can create excess moisture, leading to mold and mildew that can damage your home if you don’t catch it early.

There are several tell-tale signs that your AC coils need cleaning, including:

  • You’re getting higher electricity bills.

  • Your home doesn’t feel as cool as it usually does.

  • Your AC unit is running longer than usual to cool your home.

  • Your home is more humid than usual.

  • The coil is covered in frost while running.

Vents may blow air even though the air conditioning system is off because of the pressure difference between indoor and outdoor air or drafts from leaky ducts. Check for leaks or drafts in the ductwork or around windows and doors.

The Grayson, GA homeowners’ guide to heating and air conditioning services

From average costs to expert advice, get all the answers you need to get your job done.