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Thermostat installers and replacers in Decatur

Langham's HVAC LLC
555 Meadow Hill Road
5.00(
1
)
Approved Pro
Langham's HVAC LLC
555 Meadow Hill Road
5.00(
1
)
Approved Pro
Customers say: Quick response
Recommended by 100% of Angi customers
Recommended by 100% of HomeAdvisor customers
3 years of experience

With over 10 years experience in the HVAC industry, Langham's HVAC LLC is your industry expert in the area . We pride ourselves on our extreme professionalism and attention to detail. Our customer satisfaction guarantee will assure you we will not leave your property until you are completely satisfied with our work. As a family owned and operated business you can trust that we will treat your home as we would treat our own. We have so many options to fit any budget. Give us a call today and we look forward to working with you!

"Very honest and timely and we would recommend hire them."

Billy W on August 2023

With over 10 years experience in the HVAC industry, Langham's HVAC LLC is your industry expert in the area . We pride ourselves on our extreme professionalism and attention to detail. Our customer satisfaction guarantee will assure you we will not leave your property until you are completely satisfied with our work. As a family owned and operated business you can trust that we will treat your home as we would treat our own. We have so many options to fit any budget. Give us a call today and we look forward to working with you!

"Very honest and timely and we would recommend hire them."

Billy W on August 2023


Avatar for Flying W Contracting
Flying W Contracting
3201 Windcrest Dr
New on HomeAdvisorNew on Angi
Approved Pro
Flying W Contracting
3201 Windcrest Dr
New on AngiNew on HomeAdvisor
Approved Pro
4 years of experience
Free onsite estimate

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

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


Avatar for Dr. Air & Heat Services, LLC
Dr. Air & Heat Services, LLC
324 Bluewood Ln
4.97(
79
)
Approved Pro
Dr. Air & Heat Services, LLC
324 Bluewood Ln
4.97(
79
)
Approved Pro
Super Service Award
Customers say: True professional
104 local quotes requested
3 years of experience

We take great pride in our experience, expertise, quality, and customer service that 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. Our reputation is based on service, safety, and quality, regardless of how large or small the job.

"Very professional and knowledgeable. Technician was extremely polite and knowledgeable. He explained everything and was really nice. I will refer this company to everyone I know."

Robin F on April 2025

We take great pride in our experience, expertise, quality, and customer service that 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. Our reputation is based on service, safety, and quality, regardless of how large or small the job.

"Very professional and knowledgeable. Technician was extremely polite and knowledgeable. He explained everything and was really nice. I will refer this company to everyone I know."

Robin F on April 2025


Avatar for EMERGENCY AC
EMERGENCY AC
4204 Garland Dr
4.52(
25
)
Approved Pro
EMERGENCY AC
4204 Garland Dr
4.52(
25
)
Approved Pro
Customers say: Quality work
2172 local quotes requested
13 years of experience

Emergency AC & Plumbing is your trusted and reliable air conditioning, heating, and plumbing services provider in the Dallas-Fort Worth Metroplex. We have been serving our customers with excellence and integrity since the 1990s. Whether you need AC system repair, replacement, installation, or maintenance, water heater service, leak detection, drain cleaning, or any other HVAC or plumbing service, we are here for you early mornings and late evenings with no overtime charges. We back our work with a 100% comfort guarantee and an A+ rating from the Better Business Bureau. Contact us today and see why we are the best in the biz!

"Very professional!"

Glenn A on February 2024

Emergency AC & Plumbing is your trusted and reliable air conditioning, heating, and plumbing services provider in the Dallas-Fort Worth Metroplex. We have been serving our customers with excellence and integrity since the 1990s. Whether you need AC system repair, replacement, installation, or maintenance, water heater service, leak detection, drain cleaning, or any other HVAC or plumbing service, we are here for you early mornings and late evenings with no overtime charges. We back our work with a 100% comfort guarantee and an A+ rating from the Better Business Bureau. Contact us today and see why we are the best in the biz!

"Very professional!"

Glenn A on February 2024


Avatar for R.A. Horton Construction
R.A. Horton Construction
1401 Hovey Street
4.83(
6
)
Approved Pro
R.A. Horton Construction
1401 Hovey Street
4.83(
6
)
Approved Pro
Customers say: Quick response
Recommended by 100% of Angi customers
Recommended by 100% of HomeAdvisor customers
1105 local quotes requested

We specialize in Quality construction and renovation work performed across the US since the early 2000's. We offer a diverse range of services tailored to meet the unique needs of every customer. We take a personalized approach to each project. We work closely with our clients to understand their vision, preferences, and budgetary requirements. We strive to exceed expectations by delivering exceptional service, great quality work, and professionalism on every job. Read more below on all the services we offer and contact us with any questions or to schedule a free estimate today!

"Jake was a very kind man and a quick worker. Communication was prompt prices were reasonable for today’s market. He gave great advice for other parts of the home and offered his services for future projects. Immediately recommended to someone else for similar projects as we were very happy with the overall experience."

Leah R on July 2024

We specialize in Quality construction and renovation work performed across the US since the early 2000's. We offer a diverse range of services tailored to meet the unique needs of every customer. We take a personalized approach to each project. We work closely with our clients to understand their vision, preferences, and budgetary requirements. We strive to exceed expectations by delivering exceptional service, great quality work, and professionalism on every job. Read more below on all the services we offer and contact us with any questions or to schedule a free estimate today!

"Jake was a very kind man and a quick worker. Communication was prompt prices were reasonable for today’s market. He gave great advice for other parts of the home and offered his services for future projects. Immediately recommended to someone else for similar projects as we were very happy with the overall experience."

Leah R on July 2024


Mitchell's Handyman
123 Main St.
5.00(
3
)
Approved Pro
Mitchell's Handyman
123 Main St.
5.00(
3
)
Approved Pro
Customers say: Quick response
Recommended by 100% of Angi customers
Recommended by 100% of HomeAdvisor customers
1328 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!

"The issue was diagnosed and repaired on a weekend prior to the holiday. Ryan was very professional and explained how the problem began and his process to repair it. I will recommend him to friends and neighbors."

mark G on December 2024

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!

"The issue was diagnosed and repaired on a weekend prior to the holiday. Ryan was very professional and explained how the problem began and his process to repair it. I will recommend him to friends and neighbors."

mark G on December 2024


Avatar for Monument Heat and Air LLC
Monument Heat and Air LLC
5.00(
5
)
Approved Pro
Monument Heat and Air LLC
5.00(
5
)
Approved Pro
Customers say: Quick response
Recommended by 100% of Angi customers
Recommended by 100% of HomeAdvisor customers
671 local quotes requested

With over a decade of experience, Monument Heat And Air is a family-owned business in DFW providing reliable HVAC services. We're committed to expert craftsmanship, honest pricing, and keeping your space comfortable year-round.

"Spectacular service and excellent work. Made me feel the job was done right for sure. I would highly recommend Monument heating and air to others. This is my go to company for sure."

Brian e on January 2025

With over a decade of experience, Monument Heat And Air is a family-owned business in DFW providing reliable HVAC services. We're committed to expert craftsmanship, honest pricing, and keeping your space comfortable year-round.

"Spectacular service and excellent work. Made me feel the job was done right for sure. I would highly recommend Monument heating and air to others. This is my go to company for sure."

Brian e on January 2025


Avatar for Xtreme Air Services
Xtreme Air Services
308 US 80 Frontage Rd
4.30(
136
)
Approved Pro
Xtreme Air Services
308 US 80 Frontage Rd
4.30(
136
)
Approved Pro
Customers say: Super punctual
3179 local quotes requested
30 years of experience

We offer fast, reliable air conditioning repair and replacement in Dallas, TX. We are also licensed plumbing and electrical experts. At Xtreme Air Services, we believe in doing right by our customers. That’s why all of our work comes backed by our 100% satisfaction guarantee. We also don’t charge extra for service on nights or weekends. Work with a team that is dedicated to treating you like family. Xtreme Air Services is the leader in HVAC, plumbing, and electrical service in the Dallas-Fort Worth Metroplex. Call Today, Service Today!

"Here's a more refined, less repetitive version that maintains the same level of frustration and negativity: WARNING: Read Before Hiring Xtreme Air Services If you're considering Xtreme Air Services, take a moment to read this--there's a treat at the end. Surprise, surprise... yet another negative review. Let's start with Eddy O., the so-called "General Manager." Our Experience Eddy made it clear that Xtreme Air Services "wouldn't be able to help us" if we posted negative reviews about their incompetence, despite the fact that they improperly installed our unit, left us with a potential fire hazard, and disabled one of our heat coils (without our consent). Screenshot attached. After leaving us with a heater that doesn't function properly in winter, their solution? Pay thousands more if we want them to "help." Comical. So, in order to get the service we already paid for, we have to stay quiet? Oops. A Few Key Points: 1. Threatening not to help the customer with an issue you created? That's just ignorant. Zero integrity. 2. Why would we pay more to an unprofessional company that sends unqualified, non-bonded, non-insured workers to botch an installation? Rude, unaccountable, and incompetent from top to bottom. 3. This experience makes spending our money elsewhere EASY. The CEO is an imbecile. We paid over $12K for a unit that now operates on half power because the breaker they installed can't handle it. A professional company would've caught this--Xtreme Air Services didn't. Even their own seventh technician admitted, within seconds, that it was installed incorrectly. Still not convinced? Let's Talk Fire Hazards Both the Xtreme Air Services technician AND a third-party electrician confirmed our system was a fire hazard. Eddy (who is not a licensed electrician) claimed it wasn't because "that's why the breaker trips." That's not how fire hazards work, Eddy. This system was installed in the summer. Clearly, not one of the seven techs they sent even tested the heating function beyond a few moments. Fast forward to winter--our heater trips the breaker after 5-10 minutes, sometimes running inconsistently (aka, a fire hazard). Xtreme Air's Response? * No accountability. * No apology. * Just more incompetence from "General Manager" Eddy, a pompous clown who lacks both professionalism and basic customer service skills. Instead of addressing their negligence, he condescended, interrupted, and dismissed legitimate concerns. He even had the audacity to tell me we "don't have that many cold days in Texas." What does that have to do with selling and installing a properly functioning heating system? The real kicker? Their own sales team KNEW this system wouldn't work. They either failed to test it or outright lied. Either way, we now have a fire hazard and an unusable heater unless we fork over an additional $2,500-$3,000. Xtreme Air Services is an unprofessional, dishonest company that cuts corners and are a JOKE professionally."

Tionne S on February 2025

We offer fast, reliable air conditioning repair and replacement in Dallas, TX. We are also licensed plumbing and electrical experts. At Xtreme Air Services, we believe in doing right by our customers. That’s why all of our work comes backed by our 100% satisfaction guarantee. We also don’t charge extra for service on nights or weekends. Work with a team that is dedicated to treating you like family. Xtreme Air Services is the leader in HVAC, plumbing, and electrical service in the Dallas-Fort Worth Metroplex. Call Today, Service Today!

"Here's a more refined, less repetitive version that maintains the same level of frustration and negativity: WARNING: Read Before Hiring Xtreme Air Services If you're considering Xtreme Air Services, take a moment to read this--there's a treat at the end. Surprise, surprise... yet another negative review. Let's start with Eddy O., the so-called "General Manager." Our Experience Eddy made it clear that Xtreme Air Services "wouldn't be able to help us" if we posted negative reviews about their incompetence, despite the fact that they improperly installed our unit, left us with a potential fire hazard, and disabled one of our heat coils (without our consent). Screenshot attached. After leaving us with a heater that doesn't function properly in winter, their solution? Pay thousands more if we want them to "help." Comical. So, in order to get the service we already paid for, we have to stay quiet? Oops. A Few Key Points: 1. Threatening not to help the customer with an issue you created? That's just ignorant. Zero integrity. 2. Why would we pay more to an unprofessional company that sends unqualified, non-bonded, non-insured workers to botch an installation? Rude, unaccountable, and incompetent from top to bottom. 3. This experience makes spending our money elsewhere EASY. The CEO is an imbecile. We paid over $12K for a unit that now operates on half power because the breaker they installed can't handle it. A professional company would've caught this--Xtreme Air Services didn't. Even their own seventh technician admitted, within seconds, that it was installed incorrectly. Still not convinced? Let's Talk Fire Hazards Both the Xtreme Air Services technician AND a third-party electrician confirmed our system was a fire hazard. Eddy (who is not a licensed electrician) claimed it wasn't because "that's why the breaker trips." That's not how fire hazards work, Eddy. This system was installed in the summer. Clearly, not one of the seven techs they sent even tested the heating function beyond a few moments. Fast forward to winter--our heater trips the breaker after 5-10 minutes, sometimes running inconsistently (aka, a fire hazard). Xtreme Air's Response? * No accountability. * No apology. * Just more incompetence from "General Manager" Eddy, a pompous clown who lacks both professionalism and basic customer service skills. Instead of addressing their negligence, he condescended, interrupted, and dismissed legitimate concerns. He even had the audacity to tell me we "don't have that many cold days in Texas." What does that have to do with selling and installing a properly functioning heating system? The real kicker? Their own sales team KNEW this system wouldn't work. They either failed to test it or outright lied. Either way, we now have a fire hazard and an unusable heater unless we fork over an additional $2,500-$3,000. Xtreme Air Services is an unprofessional, dishonest company that cuts corners and are a JOKE professionally."

Tionne S on February 2025


Avatar for Brayden J Heating & Cooling, LLC
Brayden J Heating & Cooling, LLC
6587
5.00(
9
)
Approved Pro
Brayden J Heating & Cooling, LLC
6587
5.00(
9
)
Approved Pro
Customers say: Quick response
Recommended by 100% of Angi customers
Recommended by 100% of HomeAdvisor customers
677 local quotes requested

Brayden J heating & Cooling, LLC offers both residential and commercial HVAC services. With 7 years of experience and strong ties to the community, you'll be extremely pleased with our staff or services.

"Very well! Brayden was prompt to my call. He was professional and courteous! Didn’t break my bank! I would hire again! Highly recommend!"

Alisa B on March 2025

Brayden J heating & Cooling, LLC offers both residential and commercial HVAC services. With 7 years of experience and strong ties to the community, you'll be extremely pleased with our staff or services.

"Very well! Brayden was prompt to my call. He was professional and courteous! Didn’t break my bank! I would hire again! Highly recommend!"

Alisa B on March 2025


Avatar for Southern Style Home Repairs
Southern Style Home Repairs
319 CR-4886
5.00(
23
)
Approved Pro
Southern Style Home Repairs
319 CR-4886
5.00(
23
)
Approved Pro
Customers say: Quick response
Recommended by 95% of Angi customers
Recommended by 95% of HomeAdvisor customers
516 local quotes requested

Hi! I'm Hunter Randolph with Southern Style Home Repairs Ive been working in the handyman industry for a little under a year but have grew up around fixing problems around the house that needed attention, I work thoroughly and efficiently to provide a satisfying result for the customer no matter the project I decide to tackle! I look forward to working with you in the near future!!

"Hunter was efficient"

Sophia M on November 2023

Hi! I'm Hunter Randolph with Southern Style Home Repairs Ive been working in the handyman industry for a little under a year but have grew up around fixing problems around the house that needed attention, I work thoroughly and efficiently to provide a satisfying result for the customer no matter the project I decide to tackle! I look forward to working with you in the near future!!

"Hunter was efficient"

Sophia M on November 2023

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Showing 1-10 of 987

Thermostat installations and replacements FAQs

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 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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