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Thermostat installers and replacers in Alpharetta

Avatar for Hill HVAC, LLC
Hill HVAC, LLC
2374 Greenway Dr.
4.96(
53
)
Approved Pro
Hill HVAC, LLC
2374 Greenway Dr.
4.96(
53
)
Approved Pro
Customers say: Quick response
Recommended by 98% of Angi customers
Recommended by 98% of HomeAdvisor customers
7 years of experience

Hill HVAC is an owner operated repair and maintenance service. I am intent on getting your system fixed and earning your business. No nonsense or up selling. 15 yrs experience commercial and residential installation and troubleshooting. Call me directly 7702415023 anytime for estimates or advice.

"He fix the wiring and was helpful."

L F on December 2023

Hill HVAC is an owner operated repair and maintenance service. I am intent on getting your system fixed and earning your business. No nonsense or up selling. 15 yrs experience commercial and residential installation and troubleshooting. Call me directly 7702415023 anytime for estimates or advice.

"He fix the wiring and was helpful."

L F on December 2023


Grace Maintenance Service MEP LLC
3289 Powder Springs Road
New on HomeAdvisorNew on Angi
Approved Pro
Grace Maintenance Service MEP LLC
3289 Powder Springs Road
New on AngiNew on HomeAdvisor
Approved Pro
14 years of experience
Free onsite estimate

GRACE MAINTENANCE SERVICES is committed to excellence in 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.

GRACE MAINTENANCE SERVICES is committed to excellence in 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.


Avatar for Swift Brothers Plumbing, Heating & Air LLC
Swift Brothers Plumbing, Heating & Air LLC
821 Purser Dr, Suite C
New on HomeAdvisorNew on Angi
Approved Pro
Swift Brothers Plumbing, Heating & Air LLC
821 Purser Dr, Suite C
New on AngiNew on HomeAdvisor
Approved Pro
12 local quotes requested
18 years of experience

We invite you to experience a tradition of customer satisfaction that will exceed your greatest expectations. Our professionalism and quality workmanship will accurately reflect your taste and lifestyle. From conception to completion, we work with you until the job is done. We are ethical, honest, and easy to communicate with. Call us today you'll be pleased you did. Thank you

We invite you to experience a tradition of customer satisfaction that will exceed your greatest expectations. Our professionalism and quality workmanship will accurately reflect your taste and lifestyle. From conception to completion, we work with you until the job is done. We are ethical, honest, and easy to communicate with. Call us today you'll be pleased you did. Thank you


Avatar for Green Heating and Cooling, Inc.
Green Heating and Cooling, Inc.
2568 Marietta Hwy
4.76(
33
)
Approved Pro
Green Heating and Cooling, Inc.
2568 Marietta Hwy
4.76(
33
)
Approved Pro
Customers say: True professional
Recommended by 93% of Angi customers
Recommended by 93% of HomeAdvisor customers
42 local quotes requested

Getting it Done Since '71 Specializing in residential and commercial heating & air conditioning service, repairs, replacements & add on replacements, indoor air quality, energy savings and more. LICENSE #CN002244.ADDITIONAL EMAIL: JIMMY.GIBSON@GREENHVAC.US.

"Everything went great. The price was competitive and the guys did good work. They are easy to work with."

Robert Blanton B on October 2023

Getting it Done Since '71 Specializing in residential and commercial heating & air conditioning service, repairs, replacements & add on replacements, indoor air quality, energy savings and more. LICENSE #CN002244.ADDITIONAL EMAIL: JIMMY.GIBSON@GREENHVAC.US.

"Everything went great. The price was competitive and the guys did good work. They are easy to work with."

Robert Blanton B on October 2023


Avatar for Murciia Remodeling LLC
Murciia Remodeling LLC
5.00(
4
)
Approved Pro
Murciia Remodeling LLC
5.00(
4
)
Approved Pro
Customers say: Quick response
Recommended by 100% of Angi customers
Recommended by 100% of HomeAdvisor customers
2126 local quotes requested

Remodeling business 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!

"I am extremely pleased with the service provided and the professionalism of Murciia Remodeling LLC I will continue to use this service as long as Murciia Remodeling is available. They did a great job assembling my wardrobe cabinet. Their pricing is reasonable."

Baya D on May 2025

Remodeling business 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!

"I am extremely pleased with the service provided and the professionalism of Murciia Remodeling LLC I will continue to use this service as long as Murciia Remodeling is available. They did a great job assembling my wardrobe cabinet. Their pricing is reasonable."

Baya D on May 2025


Avatar for Triad Mechanical Company Inc
Triad Mechanical Company Inc
393 Swanson Dr
4.84(
185
)
Approved Pro
Triad Mechanical Company Inc
393 Swanson Dr
4.84(
185
)
Approved Pro
Customers say: Quick response
Recommended by 96% of Angi customers
Recommended by 96% of HomeAdvisor customers
1037 local quotes requested

While many heating and air companies have come and gone, we have maintained an impeccable reputation since 1991, which we have accomplished through hard work and unparalleled customer service. We pride ourselves on punctuality, courtesy to our customers and their families, and a rock solid guarantee on all the work we perform. This family-owned and -operated HVAC service has responded promptly to calls in the Greater Metro Atlanta area for more than 20 years, offering the best value from certified technicians. While many heating and air companies have come and gone, we have maintained an impeccable reputation, which we have accomplished through hard work and unparalleled customer service. We pride ourselves on punctuality, courtesy to our customers and their families, and a rock solid guarantee on all the work we perform. Additional Counties Served: Oglethorpe, Walton, Gwinnett, Rockdale, & Portions of Dekalb, & Fulton. Additional phone - (770) 400-9084.

"No findings, no solution, no explanation… collected the fee… the issue is still there. I had Triad Mechanical Company for our HVAC issue that the outdoor unit is not running. I told Paul, the assigned technician, that we had tried resetting the power to the outdoor unit but that only brought the unit back on running for a few days before it stopped running again. I asked Paul’s help diagnose the issue for the root cause. However, when I came to the property just a few minutes later than Paul, he told me that he had done his work already, well, by simply resetting the power to the unit! (although I told him that we already tried that but it didn’t work!)… He didn’t have the patience to explain to me what diagnosis he had done (within that a few minutes) and he didn’t even bother to come off his truck to show me but saying “go ask your tenant”. He collected the fee and left. I will never trust nor use Triad Mechanical Company again!"

Zhentao H on April 2024

While many heating and air companies have come and gone, we have maintained an impeccable reputation since 1991, which we have accomplished through hard work and unparalleled customer service. We pride ourselves on punctuality, courtesy to our customers and their families, and a rock solid guarantee on all the work we perform. This family-owned and -operated HVAC service has responded promptly to calls in the Greater Metro Atlanta area for more than 20 years, offering the best value from certified technicians. While many heating and air companies have come and gone, we have maintained an impeccable reputation, which we have accomplished through hard work and unparalleled customer service. We pride ourselves on punctuality, courtesy to our customers and their families, and a rock solid guarantee on all the work we perform. Additional Counties Served: Oglethorpe, Walton, Gwinnett, Rockdale, & Portions of Dekalb, & Fulton. Additional phone - (770) 400-9084.

"No findings, no solution, no explanation… collected the fee… the issue is still there. I had Triad Mechanical Company for our HVAC issue that the outdoor unit is not running. I told Paul, the assigned technician, that we had tried resetting the power to the outdoor unit but that only brought the unit back on running for a few days before it stopped running again. I asked Paul’s help diagnose the issue for the root cause. However, when I came to the property just a few minutes later than Paul, he told me that he had done his work already, well, by simply resetting the power to the unit! (although I told him that we already tried that but it didn’t work!)… He didn’t have the patience to explain to me what diagnosis he had done (within that a few minutes) and he didn’t even bother to come off his truck to show me but saying “go ask your tenant”. He collected the fee and left. I will never trust nor use Triad Mechanical Company again!"

Zhentao H on April 2024


Avatar for AIRTITE
AIRTITE
149 HWY 9 South
4.33(
6
)
Approved Pro
AIRTITE
149 HWY 9 South
4.33(
6
)
Approved Pro
Customers say: Quick response
237 local quotes requested
2 years of experience

AIRTITE Performance HVAC is providing homeowners with expert HVAC solutions through the highest quality services and experience in the industry. This includes HVAC system design, installation, repairs, and maintenance, performance testing, and more. Here at AIRTITE, we believe in Testing, not Guessing! The Proof is in the Performance. AIRTITE is owner-operated with over 10 years of experience in the industry. AIRTITE was established to help bridge the gap between homeowners/builders, their HVAC systems, and their health. As the name suggests, AIRTITE provides performance solutions for new more "air-tight" homes; however, these same solutions can be used to find and resolve issues in older, leakier homes. Here at AIRTITE, we know Performance: Let us get to know you, today!

"This was the 3rd time that Fisher helped us out with the HVAC issue (on different properties). Again, job well done and he demonstrated the professionalism, care to details, patience with customer and honesty on the cost. Fisher, we appreciate that we have you as our our HVAC go-to expert."

Zhentao H on May 2025

AIRTITE Performance HVAC is providing homeowners with expert HVAC solutions through the highest quality services and experience in the industry. This includes HVAC system design, installation, repairs, and maintenance, performance testing, and more. Here at AIRTITE, we believe in Testing, not Guessing! The Proof is in the Performance. AIRTITE is owner-operated with over 10 years of experience in the industry. AIRTITE was established to help bridge the gap between homeowners/builders, their HVAC systems, and their health. As the name suggests, AIRTITE provides performance solutions for new more "air-tight" homes; however, these same solutions can be used to find and resolve issues in older, leakier homes. Here at AIRTITE, we know Performance: Let us get to know you, today!

"This was the 3rd time that Fisher helped us out with the HVAC issue (on different properties). Again, job well done and he demonstrated the professionalism, care to details, patience with customer and honesty on the cost. Fisher, we appreciate that we have you as our our HVAC go-to expert."

Zhentao H on May 2025


Avatar for Comfort Zone Heating & Cooling
Comfort Zone Heating & Cooling
2905 Marietta Hwy
4.67(
324
)
Approved Pro
Comfort Zone Heating & Cooling
2905 Marietta Hwy
4.67(
324
)
Approved Pro
Customers say: Super punctual
804 local quotes requested
18 years of experience

Comfort Zone Heating & Cooling is family owned and operated heating and cooling company. We are located in Canton, GA and have been in business for over 17 years! Our service area includes Canton, Woodstock and most of North Georgia. We provide heating and cooling maintenance, repairs and replacement. We pride ourselves in delivering 5 star customer service! Comfort Zone's core focus is "Being the hero is people's lives so they can focus on what matters most"! We operate focused on our Core Values of being humble, exceptional, responsible, optimistic, empathy and supportive team members. Our replacement appointments are FREE! We offer competitive pricing and financing options. Our Maintenance Program offers great benefits, including priority service appointments. 10% Military discount!

"Very very bad. How can you tune up a unit but didn't change filters and didn't do anything besides writing things that are bad. Trying to skip out of the warranty that has two years left. I would not recommend this company to anyone. It's been a disaster from the moment they installed the unit. Changed 3 compressor back to back. Went through a whole summer with no air."

Canice U on July 2020

Comfort Zone Heating & Cooling is family owned and operated heating and cooling company. We are located in Canton, GA and have been in business for over 17 years! Our service area includes Canton, Woodstock and most of North Georgia. We provide heating and cooling maintenance, repairs and replacement. We pride ourselves in delivering 5 star customer service! Comfort Zone's core focus is "Being the hero is people's lives so they can focus on what matters most"! We operate focused on our Core Values of being humble, exceptional, responsible, optimistic, empathy and supportive team members. Our replacement appointments are FREE! We offer competitive pricing and financing options. Our Maintenance Program offers great benefits, including priority service appointments. 10% Military discount!

"Very very bad. How can you tune up a unit but didn't change filters and didn't do anything besides writing things that are bad. Trying to skip out of the warranty that has two years left. I would not recommend this company to anyone. It's been a disaster from the moment they installed the unit. Changed 3 compressor back to back. Went through a whole summer with no air."

Canice U on July 2020


Avatar for Dayco Systems Heating and Cooling
Dayco Systems Heating and Cooling
4185 CANTRELL RD NW
4.93(
165
)
Approved Pro
Dayco Systems Heating and Cooling
4185 CANTRELL RD NW
4.93(
165
)
Approved Pro
Customers say: Quality work
Recommended by 97% of Angi customers
Recommended by 97% of HomeAdvisor customers
1020 local quotes requested

Dayco Systems is your trusted local expert for residential HVAC, plumbing, and blown-in attic insulation services across the Greater Metro Atlanta area. Family-owned and operated since 2006, we’re known for our honest service, skilled technicians, and long-standing commitment to comfort and quality. Our licensed and highly trained team specializes in HVAC system replacements, AC and heating repairs, smart thermostats, indoor air quality improvements, water heater installs, leak repairs, and seasonal maintenance. We also offer free attic insulation inspections to help homeowners improve energy efficiency and comfort year-round. What makes us stand out? We treat every home like it’s our own—showing up on time, communicating clearly, and standing behind our work. We’re proud to be a Trane, Daikin, and Goodman dealer, and honored to be voted Best of Cobb for 7 consecutive years and Best of Georgia in 2024. When you choose Dayco, you’re choosing dependable service and lasting peace of mind.

"Suzy, on the office staff, has been extremely helpful, pleasant and professional to communicate with regarding scheduling maintenance appointments & billing. She has been thorough in following up with me, which I have appreciated."

T E on September 2023

Dayco Systems is your trusted local expert for residential HVAC, plumbing, and blown-in attic insulation services across the Greater Metro Atlanta area. Family-owned and operated since 2006, we’re known for our honest service, skilled technicians, and long-standing commitment to comfort and quality. Our licensed and highly trained team specializes in HVAC system replacements, AC and heating repairs, smart thermostats, indoor air quality improvements, water heater installs, leak repairs, and seasonal maintenance. We also offer free attic insulation inspections to help homeowners improve energy efficiency and comfort year-round. What makes us stand out? We treat every home like it’s our own—showing up on time, communicating clearly, and standing behind our work. We’re proud to be a Trane, Daikin, and Goodman dealer, and honored to be voted Best of Cobb for 7 consecutive years and Best of Georgia in 2024. When you choose Dayco, you’re choosing dependable service and lasting peace of mind.

"Suzy, on the office staff, has been extremely helpful, pleasant and professional to communicate with regarding scheduling maintenance appointments & billing. She has been thorough in following up with me, which I have appreciated."

T E on September 2023


Avatar for TE Certified Electrical, Plumbing, Heating & Cooling
TE Certified Electrical, Plumbing, Heating & Cooling
98 Patterson Rd
4.38(
8
)
Approved Pro
TE Certified Electrical, Plumbing, Heating & Cooling
98 Patterson Rd
4.38(
8
)
Approved Pro
Customers say: Quick response
1133 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

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FAQs for thermostat installation and replacement projects in Alpharetta, GA

It's often worth replacing your old thermostat with a newer model that can enhance your home's comfort and energy efficiency. Upgrading to a programmable or smart thermostat can save you up to $200 per year on energy bills. Plus, smart thermostats offer convenient features like remote control and learning capabilities, making your home more comfortable and easier to manage.

Signs of a bad thermostat include your HVAC system not turning on when it's supposed to or failing to reach the desired temperature. If the thermostat's display is blank or not functioning properly, it could be malfunctioning. Another indicator is the HVAC system running continuously without shutting off or cycling on and off too frequently. You might also notice uneven temperatures throughout your home, with some rooms being too warm or too cold. These issues suggest that the thermostat is failing and may need repair or replacement to ensure your HVAC system operates efficiently.

A thermostat should last between 10 to 20 years, depending on its quality and how well it's maintained. Over time, dust, wiring issues, and general wear can affect its performance. Even if a thermostat is still functioning after 10 years, you might choose to replace it to take advantage of newer energy-saving technologies and smart home integrations. Upgrading to a modern thermostat can improve efficiency, offer more control over your home's climate, and potentially lower energy bills.

The number of thermostats you need depends on your home's size, layout, and heating and cooling zones. In a standard single-zone HVAC system, one thermostat controls the temperature for the entire home. However, larger homes or those with multiple floors might benefit from multiple thermostats linked to a multi-zone HVAC system. This setup can offer better comfort and energy efficiency: It lets you customize the temperature in different areas, so you're only heating or cooling the spaces you're using.

Replacing a thermostat typically takes a professional technician about one to two hours to complete. If you're swapping out an existing thermostat for a similar model with compatible wiring, the process can be done in less than an hour. However, installing a new thermostat that requires additional wiring, such as a smart thermostat, or moving the thermostat to a new location can extend the time to two hours or more. Complex installations may also involve cutting into drywall or integrating with other home systems, which can add to the duration.

There are a few things that can cause your home thermostat to fail. The most simple one is age and cleanliness. Dirt, grease, dust, and other small particles can clog sensors and cause malfunctions in readings. You may also have a failing power supply and loose connections, and the simplest cause is that it isn't installed in the right place in your home so it can't properly sense air temperature. Repairing a thermostat costs around $210.

The Alpharetta, GA homeowners’ guide to thermostat installations and replacements
From average costs to expert advice, get all the answers you need to get your job done.
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