Top-rated thermostat installers and replacers.

Get matched with top thermostat installers and replacers in your area

Enter your zip and get matched with up to 3 pros

Matching on HomeAdvisor

Share some details icon
Share some details about your home project.
Match with local pros icon
Within moments, match with highly-rated local pros.
Compare quotes icon
Compare quotes and choose the best pro for the job.

Thermostat installers and replacers in Merrillville

Avatar for Juan-Stop Construction
Juan-Stop Construction
7333 Arizona Ave
4.79(
14
)
Approved Pro
Juan-Stop Construction
7333 Arizona Ave
4.79(
14
)
Approved Pro
Customers say: Quality work
Recommended by 92% of Angi customers
Recommended by 92% of HomeAdvisor customers
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 the start to the completion of a project. In order to understand the needs and expectations of our customers, we take great care to work and communicate with every customer in a professional manner. Our reputation is based on service, safety, and quality, regardless of how large or small the job.

"We hired Juan to installed new subway backsplash and remove old peel & stick backsplash from kitchen. Juan mentioned he was a little busy but will be able to take the job on and complete it on a timely manner. Juan installed the backsplash on a Friday evening after 4pm and worked until about 10pm to get the backsplash completed. Juan returned on Sunday after noon to complete the tile work after allowing mortar to dry. However, the issue was Juan did not wipe up access mortal and/or cleaned off the tile. Juan left drops of mortal on our floors (which we had just cleaned from Stanley Steamer). Juan left a few pieces opened-no tile is in those cracks. Juan left the tile backsplash with streaks from the sponge. And Juan did not apply border of caulking to the edges. Juan left tile with streaks and clumps of mortal around our cabinets, on tile and on the wall. After discussing these concerns with Juan he mentioned I was criticizing his work and his integrity. Juan mentioned he has not had a dissatisfied customer who have complained about his work. I mentioned to Juan my OCD kicked in and when we hire someone to do the work the expectation is to complete the work to customers satisfaction and clean up after you have completed your task for the day! Juan mentioned he will return to ensure we are satisfied and complete the work and neither less to say I received a text from Juan stating he will return $100 off the bill that was paid to us and he does not want to work for us! Bad customer services and not acceptable for any customer Very Disappointed"

Rhonda E on June 2024

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 the start to the completion of a project. In order to understand the needs and expectations of our customers, we take great care to work and communicate with every customer in a professional manner. Our reputation is based on service, safety, and quality, regardless of how large or small the job.

"We hired Juan to installed new subway backsplash and remove old peel & stick backsplash from kitchen. Juan mentioned he was a little busy but will be able to take the job on and complete it on a timely manner. Juan installed the backsplash on a Friday evening after 4pm and worked until about 10pm to get the backsplash completed. Juan returned on Sunday after noon to complete the tile work after allowing mortar to dry. However, the issue was Juan did not wipe up access mortal and/or cleaned off the tile. Juan left drops of mortal on our floors (which we had just cleaned from Stanley Steamer). Juan left a few pieces opened-no tile is in those cracks. Juan left the tile backsplash with streaks from the sponge. And Juan did not apply border of caulking to the edges. Juan left tile with streaks and clumps of mortal around our cabinets, on tile and on the wall. After discussing these concerns with Juan he mentioned I was criticizing his work and his integrity. Juan mentioned he has not had a dissatisfied customer who have complained about his work. I mentioned to Juan my OCD kicked in and when we hire someone to do the work the expectation is to complete the work to customers satisfaction and clean up after you have completed your task for the day! Juan mentioned he will return to ensure we are satisfied and complete the work and neither less to say I received a text from Juan stating he will return $100 off the bill that was paid to us and he does not want to work for us! Bad customer services and not acceptable for any customer Very Disappointed"

Rhonda E on June 2024


Avatar for Regional Plumbing Heating & Air
Regional Plumbing Heating & Air
207 Nickle Plate Avenue
4.70(
91
)
Approved Pro
Regional Plumbing Heating & Air
207 Nickle Plate Avenue
4.70(
91
)
Approved Pro
Customers say: Quick response
Recommended by 93% of Angi customers
Recommended by 93% of HomeAdvisor customers
55 local quotes requested

Regional Plumbing Services, Inc., is Northwest Indiana's premier service company. Central Air Conditioners, Furnaces, Heat Pumps, or any plumbing issue you may have, we do it right. No job too big or small and you can be sure that our service techs are on time and professional. We strive for customer satisfaction every time. Same day service is always available. Call us today and let us earn your business!

"I had to replace my old boiler heat as it was not repairable. So I purchased a NEW wall-mounted, modulating gas, condensing, combination Boiler. It replaces BOTH my boiler heater & Hot water tank. The new unit is attached up on wall with a small tank, gas, water lines below. The 2nd pic is where old hot water heater used to sit. Now I have all that extra storage space!! And no need for upkeep & repairs on a big old hot water heater!! The only thing I can complain about was that they were here for 12 hrs!! start to finish. Plus I was here sitting practically on top of a space heater dressed very warmly all day. And of course this was in January 2025 in northwest Indiana. I think this was a 1st time install for them in an older home not a new build. I would have rated them as a 5 star if not for the LONG DAY it took to be installed. They all were very nice, kind & cleaned up their mess. They brought large painter cloths to put down on floors due to going in out in the snow also."

Pamela B on February 2025

Regional Plumbing Services, Inc., is Northwest Indiana's premier service company. Central Air Conditioners, Furnaces, Heat Pumps, or any plumbing issue you may have, we do it right. No job too big or small and you can be sure that our service techs are on time and professional. We strive for customer satisfaction every time. Same day service is always available. Call us today and let us earn your business!

"I had to replace my old boiler heat as it was not repairable. So I purchased a NEW wall-mounted, modulating gas, condensing, combination Boiler. It replaces BOTH my boiler heater & Hot water tank. The new unit is attached up on wall with a small tank, gas, water lines below. The 2nd pic is where old hot water heater used to sit. Now I have all that extra storage space!! And no need for upkeep & repairs on a big old hot water heater!! The only thing I can complain about was that they were here for 12 hrs!! start to finish. Plus I was here sitting practically on top of a space heater dressed very warmly all day. And of course this was in January 2025 in northwest Indiana. I think this was a 1st time install for them in an older home not a new build. I would have rated them as a 5 star if not for the LONG DAY it took to be installed. They all were very nice, kind & cleaned up their mess. They brought large painter cloths to put down on floors due to going in out in the snow also."

Pamela B on February 2025


Avatar for Americas Construction Experts, LLC
Americas Construction Experts, LLC
2484 Swanson Rd
4.68(
47
)
Approved Pro
Americas Construction Experts, LLC
2484 Swanson Rd
4.68(
47
)
Approved Pro
Customers say: Quick response
Recommended by 95% of Angi customers
Recommended by 95% of HomeAdvisor customers
14 years of experience

Proudly serving all of Northern Indiana, South Chicago, and Michiana Areas from our home in Portage, Indiana! America's Construction Experts LLC is your local, family-owned remodeling and renovation contractor, dedicated to our community and beyond. For 14 years, we have been your trusted partner in home transformation. Beyond just kitchens, baths, and basements we are a full-service general contractor handling ALL your renovation needs. Experience the ease of our "Three Companies, One Beautiful Home": seamlessly buy/sell, remodel, offer in-house remodel financing, all under one roof! A one-stop shop saving you time, money, and stress! Imagine the ease: one trusted team to help you BUY smart, REMODEL strategically for profit, and SELL for top dollar – then repeat! Less headaches, exceptional returns, lifetime wealth building. Benefit from our A+ BBB rating and the HomeAdvisor 2023 Service Award – proof of our unwavering commitment to excellence. Your partner in homeownership!

"I have used America's Construction Experts before and once again they were great. David the owner, communicates so well. Tim, his main employee is wonderful. He is a perfectionist. I had a cabinet facing that needed to be replaced and he took it off 3 times until it was level and correct. We had several other small projects and he took care of them fast and expertly. They are a wonderful company. I am going to call and have another project done. I highly recommend this company."

Billie C on March 2021

Proudly serving all of Northern Indiana, South Chicago, and Michiana Areas from our home in Portage, Indiana! America's Construction Experts LLC is your local, family-owned remodeling and renovation contractor, dedicated to our community and beyond. For 14 years, we have been your trusted partner in home transformation. Beyond just kitchens, baths, and basements we are a full-service general contractor handling ALL your renovation needs. Experience the ease of our "Three Companies, One Beautiful Home": seamlessly buy/sell, remodel, offer in-house remodel financing, all under one roof! A one-stop shop saving you time, money, and stress! Imagine the ease: one trusted team to help you BUY smart, REMODEL strategically for profit, and SELL for top dollar – then repeat! Less headaches, exceptional returns, lifetime wealth building. Benefit from our A+ BBB rating and the HomeAdvisor 2023 Service Award – proof of our unwavering commitment to excellence. Your partner in homeownership!

"I have used America's Construction Experts before and once again they were great. David the owner, communicates so well. Tim, his main employee is wonderful. He is a perfectionist. I had a cabinet facing that needed to be replaced and he took it off 3 times until it was level and correct. We had several other small projects and he took care of them fast and expertly. They are a wonderful company. I am going to call and have another project done. I highly recommend this company."

Billie C on March 2021


Avatar for Chicago’s Finest Remodeling Inc.
Chicago’s Finest Remodeling Inc.
4.75(
16
)
Approved Pro
Chicago’s Finest Remodeling Inc.
4.75(
16
)
Approved Pro
Customers say: Quick response
Recommended by 93% of Angi customers
Recommended by 93% of HomeAdvisor customers
1246 local quotes requested

We go above and beyond for our clients. They are the reason we are here and we are very aware of that and make sure we honor that relationship. There's no feeling like exceeding a customer's expectation! From conceptualization to the final product, we remain engaged with our clients and it's a great service to them to make this process as painless as possible with fantastic results.

"This guy was great on time for an appointment on time to do the work done the work the way I like cleaned up after yourself and I would definitely hire him again he done a great job. The wife’s happy I’m happy."

Homer M on March 2025

We go above and beyond for our clients. They are the reason we are here and we are very aware of that and make sure we honor that relationship. There's no feeling like exceeding a customer's expectation! From conceptualization to the final product, we remain engaged with our clients and it's a great service to them to make this process as painless as possible with fantastic results.

"This guy was great on time for an appointment on time to do the work done the work the way I like cleaned up after yourself and I would definitely hire him again he done a great job. The wife’s happy I’m happy."

Homer M on March 2025


Avatar for R Bowen Construction, Inc.
R Bowen Construction, Inc.
Based Out Of
4.79(
34
)
Approved Pro
R Bowen Construction, Inc.
Based Out Of
4.79(
34
)
Approved Pro
Customers say: Quick response
Recommended by 94% of Angi customers
Recommended by 94% of HomeAdvisor customers
431 local quotes requested

We offer a variety of handyman services. We guarantee your satisfaction, and we won’t leave until the job is done right. We pride ourselves on the quality of work we provide, while delivering great customer service! Check out all the services we offer below and call -or- click to schedule an estimate today!

"Very well."

Sally M on June 2025

We offer a variety of handyman services. We guarantee your satisfaction, and we won’t leave until the job is done right. We pride ourselves on the quality of work we provide, while delivering great customer service! Check out all the services we offer below and call -or- click to schedule an estimate today!

"Very well."

Sally M on June 2025


Avatar for C2 Heating & Cooling LLC
C2 Heating & Cooling LLC
932 North 50 W
4.77(
31
)
Approved Pro
C2 Heating & Cooling LLC
932 North 50 W
4.77(
31
)
Approved Pro
Customers say: Quality work
Recommended by 93% of Angi customers
Recommended by 93% of HomeAdvisor customers
272 local quotes requested

C2 Heating & Cooling is focused on total customer satisfaction and specializes in residential Heating and AC care. Having served Northwest Indiana since 2001, you can count on quality service when having work provided by our company. We offer financing on new residential equipment purchases with 10 year parts warranties. Call for more information today!

"C2 Heating and Cooling did a fantastic job installing the HVAC system. I work from home and there was minimal interruption and they were very respectful of my property. I highly recommended their services and would not hesitate to refer this company to family and friends."

Pam M on September 2020

C2 Heating & Cooling is focused on total customer satisfaction and specializes in residential Heating and AC care. Having served Northwest Indiana since 2001, you can count on quality service when having work provided by our company. We offer financing on new residential equipment purchases with 10 year parts warranties. Call for more information today!

"C2 Heating and Cooling did a fantastic job installing the HVAC system. I work from home and there was minimal interruption and they were very respectful of my property. I highly recommended their services and would not hesitate to refer this company to family and friends."

Pam M on September 2020


Avatar for Four Seasons Heating & Air Conditioning
Four Seasons Heating & Air Conditioning
5701 W 73rd St
4.42(
3,057
)
Approved Pro
Four Seasons Heating & Air Conditioning
5701 W 73rd St
4.42(
3,057
)
Approved Pro
Customers say: Super punctual
11713 local quotes requested
54 years of experience

Four Seasons Heating, Air Conditioning, and Plumbing began as a father-son business operating out of a Chicago garage in 1971. They went from home to home repairing furnaces and air conditioners with the goal of offering their customers honest and competent service. No extra charge for 24 hr emergency service. Additional contacts: Chicago 773-413-1505 & 773-413-1028, South suburbs 708-406-3002, Southwest suburbs 815-306-2471, West suburbs 630-210-3352, North & Northwest 847-201-3222 , Northwest Indiana 219-228-8606, and (866) 444-2404. Additional emails - cs@fourseasons-chicago.com, customer.service@fourseasons-chicago.com, fs@fourseasons-chicago.com. Additional fax numbers- 773-284-9484, 847-783-0400. Additional contact names - David Musial. Additional DBAs - Four Seasons Heating, Air Conditioning and Plumbing, Four Seasons Heating & Air Conditioning, Inc., Four Seasons Heating & Air.

"Professional Timely Answered all questions"

Corliss C on June 2025

Four Seasons Heating, Air Conditioning, and Plumbing began as a father-son business operating out of a Chicago garage in 1971. They went from home to home repairing furnaces and air conditioners with the goal of offering their customers honest and competent service. No extra charge for 24 hr emergency service. Additional contacts: Chicago 773-413-1505 & 773-413-1028, South suburbs 708-406-3002, Southwest suburbs 815-306-2471, West suburbs 630-210-3352, North & Northwest 847-201-3222 , Northwest Indiana 219-228-8606, and (866) 444-2404. Additional emails - cs@fourseasons-chicago.com, customer.service@fourseasons-chicago.com, fs@fourseasons-chicago.com. Additional fax numbers- 773-284-9484, 847-783-0400. Additional contact names - David Musial. Additional DBAs - Four Seasons Heating, Air Conditioning and Plumbing, Four Seasons Heating & Air Conditioning, Inc., Four Seasons Heating & Air.

"Professional Timely Answered all questions"

Corliss C on June 2025


Avatar for Tlh
Tlh
4.60(
52
)
Approved Pro
Tlh
4.60(
52
)
Approved Pro
Customers say: Quality work
Recommended by 92% of Angi customers
Recommended by 92% of HomeAdvisor customers
437 local quotes requested

Specializing in HANDYMAN SERVICES! We always guarantee your satisfaction and won’t leave until the job is done right. We take pride in ourselves and on the quality work we provide, while always delivering great customer service! Check out our services offered, then call --or-- click to schedule a free estimate today! No job to small, I am a jack of all trades!!!

"Excellent, prompt, and professional service."

Walter B on June 2025

Specializing in HANDYMAN SERVICES! We always guarantee your satisfaction and won’t leave until the job is done right. We take pride in ourselves and on the quality work we provide, while always delivering great customer service! Check out our services offered, then call --or-- click to schedule a free estimate today! No job to small, I am a jack of all trades!!!

"Excellent, prompt, and professional service."

Walter B on June 2025


Avatar for Budget Right Kitchens LTD., DBA Budget Right Handyman
Budget Right Kitchens LTD., DBA Budget Right Handyman
520 W Erie St
4.45(
4,131
)
Approved Pro
Budget Right Kitchens LTD., DBA Budget Right Handyman
520 W Erie St
4.45(
4,131
)
Approved Pro
Customers say: Super punctual
5682 local quotes requested
21 years of experience

Budget Right Handyman is Chicagoland's largest handyman service. We've won the Angie's List Super Service Award for 10 consecutive years. Since 2016, we've completed over 20,000 projects. All of our work comes with a 100% satisfaction guarantee & 1-year warranty on labor.

"Hugo and Miguel came out to put up our walls. They were punctual, efficient, and thorough with their work."

Bernadette H on June 2025

Budget Right Handyman is Chicagoland's largest handyman service. We've won the Angie's List Super Service Award for 10 consecutive years. Since 2016, we've completed over 20,000 projects. All of our work comes with a 100% satisfaction guarantee & 1-year warranty on labor.

"Hugo and Miguel came out to put up our walls. They were punctual, efficient, and thorough with their work."

Bernadette H on June 2025


Avatar for Porterhouse Heating & Cooling
Porterhouse Heating & Cooling
18521 Spring Creek Drive
4.79(
203
)
Approved Pro
Porterhouse Heating & Cooling
18521 Spring Creek Drive
4.79(
203
)
Approved Pro
Customers say: Super punctual
Recommended by 94% of Angi customers
Recommended by 94% of HomeAdvisor customers
2950 local quotes requested

Nosotros no hablamos español. Porterhouse Heating and Cooling is locally owned and operated in Frankfort, IL. We service in the Chicagoland area, South side and Northwest, IN. This is your one stop shop for all of your Heating, A/C and Hot Water Heater repairs and installs. Also now offering air duct cleaning for entire house - call for pricing & details! We also repair and install thermostats (programmable and non programable). We service both Residential and Commercial properties. Prompt, professional service is the only way we do business. We are committed to serving our community and making sure your systems are operating efficiently and effectively. We are a step above the competition. We pride ourselves keeping our customers a No. 1 Priority. We are licensed, bonded and accredited with the BBB (Better Business Bureau). Financing is available.

"Great price and very informative and helpful technician."

Raul L on October 2024

Nosotros no hablamos español. Porterhouse Heating and Cooling is locally owned and operated in Frankfort, IL. We service in the Chicagoland area, South side and Northwest, IN. This is your one stop shop for all of your Heating, A/C and Hot Water Heater repairs and installs. Also now offering air duct cleaning for entire house - call for pricing & details! We also repair and install thermostats (programmable and non programable). We service both Residential and Commercial properties. Prompt, professional service is the only way we do business. We are committed to serving our community and making sure your systems are operating efficiently and effectively. We are a step above the competition. We pride ourselves keeping our customers a No. 1 Priority. We are licensed, bonded and accredited with the BBB (Better Business Bureau). Financing is available.

"Great price and very informative and helpful technician."

Raul L on October 2024

...
Showing 1-10 of 400

FAQs for thermostat installation and replacement projects in Merrillville, IN

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 Merrillville, IN homeowners’ guide to thermostat installations and replacements
From average costs to expert advice, get all the answers you need to get your job done.
technician repairing solar panel on roof
Apr 30, 2025
Apr 30, 2025
Budget for solar panel repair costs based on factors such as system type, panel size, accessibility, repair type, labor, parts, inspections, and more.
new solar panels installed on roof of home
Apr 30, 2025
Apr 30, 2025
Budget for solar panel installation costs based on factors such as system size, panel type, electrical requirements, location, rebates, maintenance, and more.
heat pumps installed on the side of a brick house
Apr 24, 2025
Apr 24, 2025
Budget for heat pump costs based on factors such as labor, pump capacity, efficiency rating, location, pump type, tax incentives, and more.
Aerial view of a Solar photovoltaic panels on a wood house roof surrounded by green vegetation
Nov 18, 2022
Nov 18, 2022
HomeAdvisor’s Solar Panel Cost Guide explores the cost of solar panels in California. Use our guide to find out how much solar panels cost in your city.
heat pump being repaired on the side of house
Apr 19, 2025
Apr 19, 2025
Use this guide to budget for heat pump repair costs based on factors such as problem type, part, heat pump type, professional labor, and more.
HVAC return air wall register vent
Apr 16, 2025
Apr 16, 2025
Wondering about ductwork installation costs for your home? Explore pricing breakdowns by material type, home size, and testing requirements.
Share project details to get started.