Top-rated thermostat installers and replacers.

Get matched with top thermostat installers and replacers in Ellicott City, MD

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.

Find Thermostat installers and replacers in Ellicott City

Avatar for AIR MAX HVACR LLC

AIR MAX HVACR LLC

6211 BROOKLYN BRIDGE ROAD
5.00(
5
)
•Approved Pro

AIR MAX HVACR LLC

6211 BROOKLYN BRIDGE ROAD
5.00(
5
)
•Approved Pro
Customers say: Quick response
Recommended by 100% of Angi customers
Recommended by 100% of HomeAdvisor customers
2 years of experience

AIR MAX HVACR LLC We take great pride in our experience, expertise, quality, and customer service that we provide to meet our consumer's needs. In order to understand expectations of our customers, we take great care to work and communicate with everyone in a professional manner. Our reputation is based on service, safety, and quality, regardless of how large or small the job.

"I have used this company twice. I first gave them a call over the summer for an emergency central AC issue. They were able to quickly come out, ID the problem and fix it the same day for a very reasonable price. They did so well that I called them again a couple of weeks ago when I tried to flick my furnace on for the first time and nothing happened. When it rains, it pours, right? Once again, Air Max was able to quickly respond and found a simple sensor problem and the whole visit took less than an hour and cost me under $100. I feel like I would have been out at least a grand calling another company. I TRUST these guys!"

Earl K on November 2023

AIR MAX HVACR LLC We take great pride in our experience, expertise, quality, and customer service that we provide to meet our consumer's needs. In order to understand expectations of our customers, we take great care to work and communicate with everyone in a professional manner. Our reputation is based on service, safety, and quality, regardless of how large or small the job.

"I have used this company twice. I first gave them a call over the summer for an emergency central AC issue. They were able to quickly come out, ID the problem and fix it the same day for a very reasonable price. They did so well that I called them again a couple of weeks ago when I tried to flick my furnace on for the first time and nothing happened. When it rains, it pours, right? Once again, Air Max was able to quickly respond and found a simple sensor problem and the whole visit took less than an hour and cost me under $100. I feel like I would have been out at least a grand calling another company. I TRUST these guys!"

Earl K on November 2023

Avatar for A.E.S. Electrical Company

A.E.S. Electrical Company

420 Milford Mill Rd
5.00(
5
)
•Approved Pro

A.E.S. Electrical Company

420 Milford Mill Rd
5.00(
5
)
•Approved Pro
Customers say: Quick response
Recommended by 100% of Angi customers
Recommended by 100% of HomeAdvisor customers
5 years of experience

Welcome to A.E.S Electrical Company! We take pride in the quality of work and customer satisfaction that we give each and every customer! We are known to pay exquisite attention to detail while making customer satisfaction our top priority. Call us today to learn more about how we can help you!

"He was on time and communicated through the process. The install of the thermostat took longer than expect (no fault of the installer) because the type of digital device. He took his time and saw the project through. I would and will use him again. Very professional, wore booties and followed up days later to ensure the thermostat was working."

Nico S on July 2021

Welcome to A.E.S Electrical Company! We take pride in the quality of work and customer satisfaction that we give each and every customer! We are known to pay exquisite attention to detail while making customer satisfaction our top priority. Call us today to learn more about how we can help you!

"He was on time and communicated through the process. The install of the thermostat took longer than expect (no fault of the installer) because the type of digital device. He took his time and saw the project through. I would and will use him again. Very professional, wore booties and followed up days later to ensure the thermostat was working."

Nico S on July 2021

Stiffler's Electric Service

7802 Marioak
4.96(
98
)
•Approved Pro

Stiffler's Electric Service

7802 Marioak
4.96(
98
)
•Approved Pro
Customers say: Quick response
Recommended by 100% of Angi customers
Recommended by 100% of HomeAdvisor customers
23 years of experience

Since 1979, Stiffler's Electric Service has been providing good quality work. Call on us � we get the work done. Our professional staff will make sure that all of your electrical needs are met with the best quality customer service and excellence in electrical craftsmanship. Call David today!

"David Stiffler was awesome. Found the source of the problem, fixed it in a timely manner, was reasonably priced, and just an overall great guy."

Tiffany A on May 2024

Since 1979, Stiffler's Electric Service has been providing good quality work. Call on us � we get the work done. Our professional staff will make sure that all of your electrical needs are met with the best quality customer service and excellence in electrical craftsmanship. Call David today!

"David Stiffler was awesome. Found the source of the problem, fixed it in a timely manner, was reasonably priced, and just an overall great guy."

Tiffany A on May 2024

Avatar for ABL HomePro

ABL HomePro

13017 WISTERIA DR
5.00(
10
)
•Approved Pro

ABL HomePro

13017 WISTERIA DR
5.00(
10
)
•Approved Pro
Customers say: Quick response
Recommended by 100% of Angi customers
Recommended by 100% of HomeAdvisor customers
32 local quotes requested

Handyman serving the Washington Metro Area since 2010. Big or small we really do it all. From finishing a basement to installing a ceiling fan we've got you covered with meticulous work, integrity, and of course friendliness.

"Perfectly!"

Charles B on June 2024

Handyman serving the Washington Metro Area since 2010. Big or small we really do it all. From finishing a basement to installing a ceiling fan we've got you covered with meticulous work, integrity, and of course friendliness.

"Perfectly!"

Charles B on June 2024

Avatar for Weather Masters Corporation

Weather Masters Corporation

4640 Wedgewood Blvd Suite 109
4.89(
108
)
•Approved Pro

Weather Masters Corporation

4640 Wedgewood Blvd Suite 109
4.89(
108
)
•Approved Pro
Customers say: Quality work
Recommended by 99% of Angi customers
Recommended by 99% of HomeAdvisor customers
49 local quotes requested

Here at Weather Masters we pride ourselves on affordable, reliable and honest service. With free replacement estimates and competitive service rates, we do our best to keep you and your bank account comfortable.

"Great folks to work with"

Tom H on September 2023

Here at Weather Masters we pride ourselves on affordable, reliable and honest service. With free replacement estimates and competitive service rates, we do our best to keep you and your bank account comfortable.

"Great folks to work with"

Tom H on September 2023

Avatar for MIR’S HANDYMAN SERVICES

MIR’S HANDYMAN SERVICES

14664 Brougham Way
5.00(
11
)
•Approved Pro

MIR’S HANDYMAN SERVICES

14664 Brougham Way
5.00(
11
)
•Approved Pro
Customers say: Quick response
Recommended by 100% of Angi customers
Recommended by 100% of HomeAdvisor customers
21 local quotes requested

Plumbing, flooring ,electrical (low voltage's),deck repair ,painting.

"Mir did an excellent job fixing the sliding screen door. I highly recommend him to anyone who needs home repairs. I would definitely request his services again in the future"

Seungchul H on April 2025

Plumbing, flooring ,electrical (low voltage's),deck repair ,painting.

"Mir did an excellent job fixing the sliding screen door. I highly recommend him to anyone who needs home repairs. I would definitely request his services again in the future"

Seungchul H on April 2025

Avatar for JL Smith Repair & Remodeling

JL Smith Repair & Remodeling

6801 Oak Hall Lane # 2283
4.91(
32
)
•Approved Pro

JL Smith Repair & Remodeling

6801 Oak Hall Lane # 2283
4.91(
32
)
•Approved Pro
Customers say: True professional
Recommended by 96% of Angi customers
Recommended by 96% of HomeAdvisor customers
103 local quotes requested

We make home beautiful one room at a time for our customers that are on a budget. We specialize in all phases of remodeling for your home, business, bathrooms, kitchens, finishing basements, and more! 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! We accept cash, checks, Master card and Visa for payment.

"I hired Joe for a whole house project, and I highly recommend his work. The qualify of work is excellent, and his rates are reasonable. Joe was partner throughout the process, and he was meticulous in putting together proposals each time I made an additional request or we uncovered pre-existing issues that required repair. Joe is a good man, and I am extremely fortunate that I found him."

Frederick D on November 2024

We make home beautiful one room at a time for our customers that are on a budget. We specialize in all phases of remodeling for your home, business, bathrooms, kitchens, finishing basements, and more! 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! We accept cash, checks, Master card and Visa for payment.

"I hired Joe for a whole house project, and I highly recommend his work. The qualify of work is excellent, and his rates are reasonable. Joe was partner throughout the process, and he was meticulous in putting together proposals each time I made an additional request or we uncovered pre-existing issues that required repair. Joe is a good man, and I am extremely fortunate that I found him."

Frederick D on November 2024

Avatar for JCB Handyman/ Masonry

JCB Handyman/ Masonry

6111 Boyers Mill Rd
3.94(
16
)
•Approved Pro

JCB Handyman/ Masonry

6111 Boyers Mill Rd
3.94(
16
)
•Approved Pro
Customers say: Super punctual
373 local quotes requested
11 years of experience

JCB Handyman/Masonry offers experienced finish carpentry, framing, and general handyman work in Washington D.C. Contact us today for an estimate!

"I am more than pleased with the work performed by JCB Handyman Services. Their fees were reasonable, they quickly responded to my text messages, were neat and cleaned up their work areas, and they provided suggestions on how to address my questions. I will definitely hire them in the future for work I need done m"

Georgia M on September 2025

JCB Handyman/Masonry offers experienced finish carpentry, framing, and general handyman work in Washington D.C. Contact us today for an estimate!

"I am more than pleased with the work performed by JCB Handyman Services. Their fees were reasonable, they quickly responded to my text messages, were neat and cleaned up their work areas, and they provided suggestions on how to address my questions. I will definitely hire them in the future for work I need done m"

Georgia M on September 2025

Avatar for Harry's Handyman Services

Harry's Handyman Services

8325 Parkway Rd
5.00(
21
)
•Approved Pro

Harry's Handyman Services

8325 Parkway Rd
5.00(
21
)
•Approved Pro
Super Service Award
Customers say: Quality work
Recommended by 100% of Angi customers
Recommended by 100% of HomeAdvisor customers
135 local quotes requested

Current owner of Harry's Construction and Harry Handyman Services we've been in business for 25 years we have a five-star rating from all ranges of handyman jobs inside and outside. We are a small local business in Clearwater beach, Maryland. We strive for perfection for all our customers. We are dependable, honest and guarantee our work! Call Harry's Handyman Services today! 410-919-3658.

"Efficient, courteous and professional. Needed attic pull down stairs removed to facilitate HVAC work. Harry came out (was the only one who did out of five prospective vendors) reviewed what needed to be done and provided a comprehensive estimate of all work to be done. Work was done as and when promised and area was clean and tidy when the job was finished. Will definitely recommend Harry to anyone who needs handyman help."

Pamela P on July 2025

Current owner of Harry's Construction and Harry Handyman Services we've been in business for 25 years we have a five-star rating from all ranges of handyman jobs inside and outside. We are a small local business in Clearwater beach, Maryland. We strive for perfection for all our customers. We are dependable, honest and guarantee our work! Call Harry's Handyman Services today! 410-919-3658.

"Efficient, courteous and professional. Needed attic pull down stairs removed to facilitate HVAC work. Harry came out (was the only one who did out of five prospective vendors) reviewed what needed to be done and provided a comprehensive estimate of all work to be done. Work was done as and when promised and area was clean and tidy when the job was finished. Will definitely recommend Harry to anyone who needs handyman help."

Pamela P on July 2025

GNG Services Unlimited

1731 Northridge Lane
4.93(
69
)
•Approved Pro

GNG Services Unlimited

1731 Northridge Lane
4.93(
69
)
•Approved Pro
Customers say: True professional
Recommended by 97% of Angi customers
Recommended by 97% of HomeAdvisor customers
408 local quotes requested

A family owned and operated handyman and junk removal service company established in 2017. We focus on fair flat pricing providing electrical, plumbing, carpentry, drywall painting, exterior, landscaping, andso much more

"wonderful job"

Patricia W on October 2025

A family owned and operated handyman and junk removal service company established in 2017. We focus on fair flat pricing providing electrical, plumbing, carpentry, drywall painting, exterior, landscaping, andso much more

"wonderful job"

Patricia W on October 2025

...
Showing 1-10 of 974
FAQs for thermostat installation and replacement projects in Ellicott City, MD

Smart thermostats may be worth it for many homeowners. They come with various features, including voice control and smartphone apps. Vacation mode can help lower energy usage when you’re out of town for an extended period. Alert warnings let you know about major spikes or drops in temperature. Smartphone apps can track energy usage, and smart thermostats can learn your routine over time to adjust your temperature and reduce wasted energy consumption automatically.

You typically do not need more than one smart thermostat. While it’s common to see multiple mechanical thermostats throughout a large home, multiple smart thermostats may try to override each other. This can lead to problems with the HVAC system. Ensure the unit you buy has the option for dual- or multi-zoned systems to avoid compatibility issues.

Installing a programmable or smart thermostat may save you $180 per year in utility costs. A big part of this comes from a smart thermostat’s ability to learn and adapt to your regular routines. With smartphone apps or web-based interfaces, you also have the option to control your thermostat when you’re not home.

The Ellicott City, MD homeowners’ guide to thermostat installations and replacements

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

See all articles
  • Father and son installing solar panels on the roof

    Who removes solar panels? Learn if roofers or solar technicians handle removal, steps pros follow, and cost factors to plan your project

  • Solar panel on the roof of a home

    HomeAdvisor's Solar Panel Price Guide gives the average home solar system and panel prices. Explore solar panel pricing per watt or square foot.

  • solar panels on roof in suburban neighborhood

    HomeAdvisor’s Virginia solar panel cost guide digs into the average cost of solar panels in Virginia and cost factors around the state. Find prices and pros for your solar project.

  • Solar panel system on single roof

    HomeAdvisor’s Solar Panel Cost Guide for Pennsylvania covers project costs in Philadelphia and Pittsburgh. Use this guide to find solar panel costs for PA.

  • A house with installed solar panels on the roof

    HomeAdvisor's guide to the cost of solar panels in Texas explores solar panel cost by type and location. Find out how much you'll pay to install solar panels on your Texas property.

  • Solar panels on shingle roof of Florida house

    HomeAdvisor's Guide to the Cost of Solar Panels in Florida explores solar panel costs by type and location. Find out how much you'll pay to install solar panels on your Florida property.