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Thermostat installers and replacers in Decatur

Avatar for Quality HVAC Services LLC
Quality HVAC Services LLC
22393 Fain Rd
5.00(
2
)
Approved Pro
Quality HVAC Services LLC
22393 Fain Rd
5.00(
2
)
Approved Pro
Customers say: Quick response
Recommended by 100% of Angi customers
Recommended by 100% of HomeAdvisor customers
4 years of experience

We’re dedicated to providing our clients with the very best in installation, service, and repair for your heating and cooling needs. Our company is built on honesty and integrity. We specialize in central A/C and cooling systems as well as heating and furnace systems. We take pride in the quality of our work and our commitment to outstanding results. We look forward to building long-term relationships with our clients, and guarantee your satisfaction.

"n/a"

Meike F on June 2021

We’re dedicated to providing our clients with the very best in installation, service, and repair for your heating and cooling needs. Our company is built on honesty and integrity. We specialize in central A/C and cooling systems as well as heating and furnace systems. We take pride in the quality of our work and our commitment to outstanding results. We look forward to building long-term relationships with our clients, and guarantee your satisfaction.

"n/a"

Meike F on June 2021


Avatar for Essential Comfort LLC
Essential Comfort LLC
1506 Barkley Bridge Road
5.00(
3
)
Approved Pro
Essential Comfort LLC
1506 Barkley Bridge Road
5.00(
3
)
Approved Pro
Customers say: Quick response
20 local quotes requested
10 years of experience

We pride our company on reliability, great communication, integrity, and quality work. We strongly believe in giving our absolute best in all of our projects no matter how big or small. We are experts in our trade and will always keep you educated on your particular task or project. We look forward to earning your business!

""

Derek N on February 2019

We pride our company on reliability, great communication, integrity, and quality work. We strongly believe in giving our absolute best in all of our projects no matter how big or small. We are experts in our trade and will always keep you educated on your particular task or project. We look forward to earning your business!

""

Derek N on February 2019


Avatar for Wheeler HVAC LLC
Wheeler HVAC LLC
105 Pleasant Grove Road
5.00(
2
)
Approved Pro
Wheeler HVAC LLC
105 Pleasant Grove Road
5.00(
2
)
Approved Pro
1 years of experience
Free onsite estimate

We pride our company on reliability, great communication, integrity, and quality work. We are experts in our trade and will do our best to keep you as educated as we can on your particular task or project. We look forward to earning your business!

"The contractor Timothy was very kind and honest. He worked promptly, fixing my AC unit, while also giving information on how to fix the issue with the ants long term. The service overall was so great and I look forward to working with this company again."

Kacia G on June 2025

We pride our company on reliability, great communication, integrity, and quality work. We are experts in our trade and will do our best to keep you as educated as we can on your particular task or project. We look forward to earning your business!

"The contractor Timothy was very kind and honest. He worked promptly, fixing my AC unit, while also giving information on how to fix the issue with the ants long term. The service overall was so great and I look forward to working with this company again."

Kacia G on June 2025


Avatar for Higdon Heating and Cooling LLC
Higdon Heating and Cooling LLC
692 Union Rd
5.00(
12
)
Approved Pro
Higdon Heating and Cooling LLC
692 Union Rd
5.00(
12
)
Approved Pro
10 local quotes requested
33 years of experience

Higdon Service is a locally owned and operated company that values honesty and integrity in all aspects of our business. Our dedicated team of professionals have over 30 years of hands on experience, to provide innovative ideas and suggestions tailored to your projects. Our services are customized to your individual needs, paying close attention to the details of each project that we are involved with. Please feel free to contact us today!

"Crew was wonderful. Talked me through the replacement of my unit. I understood everything that they was doing. They did a fantastic job. Didn?t leave trash out. Very professional. I would recommend them to anyone."

Tina T on June 2025

Higdon Service is a locally owned and operated company that values honesty and integrity in all aspects of our business. Our dedicated team of professionals have over 30 years of hands on experience, to provide innovative ideas and suggestions tailored to your projects. Our services are customized to your individual needs, paying close attention to the details of each project that we are involved with. Please feel free to contact us today!

"Crew was wonderful. Talked me through the replacement of my unit. I understood everything that they was doing. They did a fantastic job. Didn?t leave trash out. Very professional. I would recommend them to anyone."

Tina T on June 2025


Avatar for Jay's Contracting
Jay's Contracting
Based In
5.00(
17
)
Approved Pro
Jay's Contracting
Based In
5.00(
17
)
Approved Pro
Customers say: Quick response
Recommended by 100% of Angi customers
Recommended by 100% of HomeAdvisor customers
492 local quotes requested

Handyman, carpentry work, etc. we can do it all. Give us a call or click for your quote today!

"It was great! They were fast and went above and beyond! I recommend hiring them. ☺️"

Amiee M on May 2024

Handyman, carpentry work, etc. we can do it all. Give us a call or click for your quote today!

"It was great! They were fast and went above and beyond! I recommend hiring them. ☺️"

Amiee M on May 2024


Avatar for Annette Hale's Indoor Comfort Systems
Annette Hale's Indoor Comfort Systems
1201 Church St NW
4.69(
116
)
Approved Pro
Annette Hale's Indoor Comfort Systems
1201 Church St NW
4.69(
116
)
Approved Pro
Customers say: Quality work
Recommended by 91% of Angi customers
Recommended by 91% of HomeAdvisor customers
446 local quotes requested

Annette Hale's Indoor Comfort Systems. We offer quality service at an affordable price. Contact us today about an estimate!

"This was the second system we purchased. The first was a replacement heat pump for our upstairs system. This one was an air conditioner and gas pack heating for the main residence. We purchased this through their rebate offer via Costco. We really wanted this to be a no problems sale. We paid in cash (check) the day before it was installed. The basic unit seems to work correctly and reliably so far. The inside has been comfortable since it was installed. That’s the good side of the story. The unit upstairs was installed with a programmable thermostat - Which I did not particularly want. That programmable thermostat is awkward to use - And I am a degreed electronic engineer! I eventually replaced it with a simple non-programmable thermostat. When I got the quote on the recent main unit replacement, I insisted on keeping my simple to use Honeywell Electronic heating and cooling thermostat. We are retired and one of us is usually home so there is zero reason to use a programmable thermostat and frankly the Lennox programmable one is a misery to use. When the installers arrived I placed the installation manual for the existing Honeywell thermostat on the thermostat itself - Impossible to miss! The main unit was installed correctly and seems to work well. But the installer had difficulty hooking up the Honeywell thermostat due to wiring problems eventually found under the house in the thermostat wiring. It was a warm day on installation day and the heating settings were only briefly tested. Then the AC settings were tested and the installer was very quickly out the door. A week or so later it got cool and I switched to heating. In heat mode the circulation fan would not run unless the heat was actually heating despite the thermostat being set to fan “ON”. I am an electronic engineer and I suspected there was an error in the hookup of the thermostat. Turns out I was correct - The installer had set the internal thermostat switch to “heat pump” instead of AC with gas heating he had installed. Furthermore he had hooked up one thermostat wire to the wrong terminal. He has to go out of his way to make these mistakes instead of leaving the thermostat wiring and internal switch setting as it had been. I corrected these two errors and then the system ran correctly. Anyone can make a mistake, but it takes something “special” to be so sloppy in testing the installation not to notice it wasn’t acting correctly! Well I thought the only problem I had with Annette Hale Indoor Comfort Air was the sloppy installer. Just this morning the sales person called me to ask if we had paid for the unit from several weeks ago! The same sales person who picked up the check the day before - Which had cleared the bank some time ago. I may not be have been very polite with this person - It seems their accounting people are just as sloppy as their installer. Eventually I was called back and he apologized that they had been paid, they just somehow credited it wrong. I would never again use this installer. They screwed up part of the installation and then may have tried to collect twice for the same work! Sloppy, very sloppy! The Lennox equipment itself except for the miserable programmable Lennox thermostat works well and seems of good quality."

Charles W on May 2021

Annette Hale's Indoor Comfort Systems. We offer quality service at an affordable price. Contact us today about an estimate!

"This was the second system we purchased. The first was a replacement heat pump for our upstairs system. This one was an air conditioner and gas pack heating for the main residence. We purchased this through their rebate offer via Costco. We really wanted this to be a no problems sale. We paid in cash (check) the day before it was installed. The basic unit seems to work correctly and reliably so far. The inside has been comfortable since it was installed. That’s the good side of the story. The unit upstairs was installed with a programmable thermostat - Which I did not particularly want. That programmable thermostat is awkward to use - And I am a degreed electronic engineer! I eventually replaced it with a simple non-programmable thermostat. When I got the quote on the recent main unit replacement, I insisted on keeping my simple to use Honeywell Electronic heating and cooling thermostat. We are retired and one of us is usually home so there is zero reason to use a programmable thermostat and frankly the Lennox programmable one is a misery to use. When the installers arrived I placed the installation manual for the existing Honeywell thermostat on the thermostat itself - Impossible to miss! The main unit was installed correctly and seems to work well. But the installer had difficulty hooking up the Honeywell thermostat due to wiring problems eventually found under the house in the thermostat wiring. It was a warm day on installation day and the heating settings were only briefly tested. Then the AC settings were tested and the installer was very quickly out the door. A week or so later it got cool and I switched to heating. In heat mode the circulation fan would not run unless the heat was actually heating despite the thermostat being set to fan “ON”. I am an electronic engineer and I suspected there was an error in the hookup of the thermostat. Turns out I was correct - The installer had set the internal thermostat switch to “heat pump” instead of AC with gas heating he had installed. Furthermore he had hooked up one thermostat wire to the wrong terminal. He has to go out of his way to make these mistakes instead of leaving the thermostat wiring and internal switch setting as it had been. I corrected these two errors and then the system ran correctly. Anyone can make a mistake, but it takes something “special” to be so sloppy in testing the installation not to notice it wasn’t acting correctly! Well I thought the only problem I had with Annette Hale Indoor Comfort Air was the sloppy installer. Just this morning the sales person called me to ask if we had paid for the unit from several weeks ago! The same sales person who picked up the check the day before - Which had cleared the bank some time ago. I may not be have been very polite with this person - It seems their accounting people are just as sloppy as their installer. Eventually I was called back and he apologized that they had been paid, they just somehow credited it wrong. I would never again use this installer. They screwed up part of the installation and then may have tried to collect twice for the same work! Sloppy, very sloppy! The Lennox equipment itself except for the miserable programmable Lennox thermostat works well and seems of good quality."

Charles W on May 2021


Avatar for Aire Serv of Huntsville
Aire Serv of Huntsville
3900 Cypressbrook Drive Northwest
4.64(
491
)
Approved Pro
Aire Serv of Huntsville
3900 Cypressbrook Drive Northwest
4.64(
491
)
Approved Pro
Customers say: Quick response
435 local quotes requested
36 years of experience

Aire Serv of Huntsville is your trusted heating and air conditioning partner in the heart of Rocket City. We provide installations, HVAC maintenance, AC repair, duct cleaning, indoor air quality system recommendations, and offer reliable solutions for your family or business needs. Our locally owned business prides itself on building long-lasting relationships with our neighbors throughout our community. Ensuring comfort, safety, and satisfaction for every customer we serve. With a focus on honesty, integrity, and excellence; we use the Neighborly Done Right Promise™- if it’s not done right, we promise to make it right. Choose Aire Serv of Huntsville for quality service you can trust.

"It went amazingly well. Nick was very professional and educated me on everything. I would not want anyone else to come to my home. Thank you so much for giving me air."

Fanella H on March 2025

Aire Serv of Huntsville is your trusted heating and air conditioning partner in the heart of Rocket City. We provide installations, HVAC maintenance, AC repair, duct cleaning, indoor air quality system recommendations, and offer reliable solutions for your family or business needs. Our locally owned business prides itself on building long-lasting relationships with our neighbors throughout our community. Ensuring comfort, safety, and satisfaction for every customer we serve. With a focus on honesty, integrity, and excellence; we use the Neighborly Done Right Promise™- if it’s not done right, we promise to make it right. Choose Aire Serv of Huntsville for quality service you can trust.

"It went amazingly well. Nick was very professional and educated me on everything. I would not want anyone else to come to my home. Thank you so much for giving me air."

Fanella H on March 2025


Avatar for Bama Air Systems Mechanical Contractors, Inc
Bama Air Systems Mechanical Contractors, Inc
78 Lindsey Rd
4.85(
13
)
Approved Pro
Bama Air Systems Mechanical Contractors, Inc
78 Lindsey Rd
4.85(
13
)
Approved Pro
Customers say: Quality work
Recommended by 92% of Angi customers
Recommended by 92% of HomeAdvisor customers
284 local quotes requested

Complete residential and commercial heating and cooling service and sales including Geo Thermal systems, sheet metal fabrication, grease hood installation, grease duct fabrication and attic insulation. Proud member of the TVA Energy RIght Partners program.

"We were very happy with Bama Air Systems. They came out for an estimate on a Mini-Split in a timely manner, and had a quick turn-around time for installation. Their service professionals, Austin, Zach and JC, were on time, friendly and courteous, and very efficient. The installation took less than a day, and they cleaned up the construction debris thoroughly. We would definitely recommend them for your HVAC needs."

Lynne H on February 2024

Complete residential and commercial heating and cooling service and sales including Geo Thermal systems, sheet metal fabrication, grease hood installation, grease duct fabrication and attic insulation. Proud member of the TVA Energy RIght Partners program.

"We were very happy with Bama Air Systems. They came out for an estimate on a Mini-Split in a timely manner, and had a quick turn-around time for installation. Their service professionals, Austin, Zach and JC, were on time, friendly and courteous, and very efficient. The installation took less than a day, and they cleaned up the construction debris thoroughly. We would definitely recommend them for your HVAC needs."

Lynne H on February 2024


Avatar for Skyward Heating Air and Plumbing
Skyward Heating Air and Plumbing
204 Pride Lane
4.76(
33
)
Approved Pro
Skyward Heating Air and Plumbing
204 Pride Lane
4.76(
33
)
Approved Pro
Customers say: Super punctual
Recommended by 90% of Angi customers
Recommended by 90% of HomeAdvisor customers
780 local quotes requested

We do plumbing, heating, and cooling. We show up on time and go the extra mile for our customers. We service and install a wide array of products with the upmost quality and assurance that you will be satisfied.

"It went well. Skyward followed up and provided an arrival time. They texted me when the technician was in route. I like that they sent a picture of the tech, Eric Gibbs. He was on-time, polite, assessed the problem and provided a price prior to working. He answered questions, and cleaned the area before leaving. Great job!"

Joyce A on May 2025

We do plumbing, heating, and cooling. We show up on time and go the extra mile for our customers. We service and install a wide array of products with the upmost quality and assurance that you will be satisfied.

"It went well. Skyward followed up and provided an arrival time. They texted me when the technician was in route. I like that they sent a picture of the tech, Eric Gibbs. He was on-time, polite, assessed the problem and provided a price prior to working. He answered questions, and cleaned the area before leaving. Great job!"

Joyce A on May 2025


Avatar for Alaryn LLC
Alaryn LLC
SE
4.91(
35
)
Approved Pro
Alaryn LLC
SE
4.91(
35
)
Approved Pro
Customers say: Quality work
Recommended by 97% of Angi customers
Recommended by 97% of HomeAdvisor customers
453 local quotes requested

Handyman, remodels , repair, painting, drywall, Bathrooms, kitchens, Windows, Framing, siding repair, Trim, molding, drop ceilings, concrete and much more. Locally owned and operated. Great rates Would love to have your business.

"Mathew was communicative, professional and did an outstanding job. Definitely would use again!"

Keith B on February 2025

Handyman, remodels , repair, painting, drywall, Bathrooms, kitchens, Windows, Framing, siding repair, Trim, molding, drop ceilings, concrete and much more. Locally owned and operated. Great rates Would love to have your business.

"Mathew was communicative, professional and did an outstanding job. Definitely would use again!"

Keith B on February 2025

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Showing 1-10 of 355

FAQs for thermostat installation and replacement projects in Decatur, AL

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 Decatur, AL 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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