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Find Thermostat installers and replacers in New Castle

Avatar for JEM Comfort Care

JEM Comfort Care

4.91(
39
)
•Approved Pro

JEM Comfort Care

4.91(
39
)
•Approved Pro
Customers say: Quick response
Recommended by 100% of Angi customers
Recommended by 100% of HomeAdvisor customers
11 years of experience

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

"Honest and hard working. Could have told me to replace whole HVAC but didnâ t. Fixed the issue and saved me a lot of money."

Ben C on May 2021

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

"Honest and hard working. Could have told me to replace whole HVAC but didnâ t. Fixed the issue and saved me a lot of money."

Ben C on May 2021

Avatar for Done Right Today, Inc.

Done Right Today, Inc.

4.85(
532
)
•Approved Pro

Done Right Today, Inc.

4.85(
532
)
•Approved Pro
Customers say: True professional
Recommended by 94% of Angi customers
Recommended by 94% of HomeAdvisor customers
237 local quotes requested

We take great pride in our experience, expertise, quality, and customer service that we provide to meet the consumers needs. It is our mission to provide excellent workmanship and complete customer satisfaction from start to 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.

"Rich did a great job and spent a lot of time making sure everything was done properly. Priced fairly as well. Highly recommend."

Tracy L on November 2025

We take great pride in our experience, expertise, quality, and customer service that we provide to meet the consumers needs. It is our mission to provide excellent workmanship and complete customer satisfaction from start to 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.

"Rich did a great job and spent a lot of time making sure everything was done properly. Priced fairly as well. Highly recommend."

Tracy L on November 2025

Avatar for Harris Plumbing, Heating, Air & Electrical

Harris Plumbing, Heating, Air & Electrical

4.25(
30
)
•Approved Pro

Harris Plumbing, Heating, Air & Electrical

4.25(
30
)
•Approved Pro
Customers say: Quick response
86 local quotes requested
38 years of experience

Harris Plumbing, Heating, Air & Electrical is proud to be a locally owned and operated business that has been serving the community since 1988! With years of experience and unmatched expertise, we can help with any and all of your HVAC, Plumbing and Electrical needs. Since opening our doors we have built our business on providing our customers with the highest quality products and service at a fair price. From installations to service, you can count on our techs to be timely, tidy, and when the job is done, that you will be 100% satisfied with the work. Let us show you the Harris way, get in touch today!

"Great job a little pricey but a good job."

Scott C on January 2026

Harris Plumbing, Heating, Air & Electrical is proud to be a locally owned and operated business that has been serving the community since 1988! With years of experience and unmatched expertise, we can help with any and all of your HVAC, Plumbing and Electrical needs. Since opening our doors we have built our business on providing our customers with the highest quality products and service at a fair price. From installations to service, you can count on our techs to be timely, tidy, and when the job is done, that you will be 100% satisfied with the work. Let us show you the Harris way, get in touch today!

"Great job a little pricey but a good job."

Scott C on January 2026

Avatar for Desmond Heating & Cooling Solutions

Desmond Heating & Cooling Solutions

4.65(
63
)
•Approved Pro

Desmond Heating & Cooling Solutions

4.65(
63
)
•Approved Pro
Customers say: True professional
Recommended by 90% of Angi customers
Recommended by 90% of HomeAdvisor customers
46 local quotes requested

At Desmond Heating & Cooling Solutions, your priority is our priority, tackling detailed projects with simple solutions. Our team sets the standards of seamless customer service, client experience, streamlined and personalized projects based on the clients wants, needs, and dreams. We are licensed, bonded, and insured. We warranty all of our parts and labor. We specialize in: Heating Cooling Duct/Vent Cleaning Light Plumbing We have partnered with the best vendors the market has to offer to guarantee that our brand, products, and services we offer are of the highest caliber.

"He did the job pretty quick, found the problem really fast, and was done in a half an hour. "

Annette S on January 2026

At Desmond Heating & Cooling Solutions, your priority is our priority, tackling detailed projects with simple solutions. Our team sets the standards of seamless customer service, client experience, streamlined and personalized projects based on the clients wants, needs, and dreams. We are licensed, bonded, and insured. We warranty all of our parts and labor. We specialize in: Heating Cooling Duct/Vent Cleaning Light Plumbing We have partnered with the best vendors the market has to offer to guarantee that our brand, products, and services we offer are of the highest caliber.

"He did the job pretty quick, found the problem really fast, and was done in a half an hour. "

Annette S on January 2026

Avatar for Horizon Services

Horizon Services

4.47(
94
)
•Approved Pro

Horizon Services

4.47(
94
)
•Approved Pro
Customers say: Super punctual
64 local quotes requested
Free onsite estimate

When you need AC heating or plumbing services, look no further than Horizon Services. For nearly 30 years, we’ve been the trusted name in plumbing heating, and air conditioning, offering an unmatched level of service at reasonable rates.

"Less than 5 years ago, I spent in excess of $10,000 to have a new unit installed with a 10 year warranty. I should have seen the red flags from the very beginning. The sales representative told us additional vents would be installed and when the installation crew showed up, that did not happen. Fast forward to the present and I am now on my 4th phone call for an appointment this season, 3 days so far of not being able to work as I waited for a technician to come diagnose the problem. The 3rd. tech came last night and indicated that the work the other tech did was not for the root of the problem. (I was told in front of witnesses that the work needed to be done, was not covered under warranty, would cost me $367 and would fix my issues)In fact, the 3rd tech only made the issue worse by leaving our attic return unscrewed and overfilling our unit with Freon that the 4th tech had to remove from our system. Upon leaving last night I was told that everything was corrected. Today - my home is slowly creeping up in temperature (presently 80 degrees inside, while set to 72). The company keeps trying to sell me a "maintenance plan" and I keep reiterating to EVERY one who pushes it that we have been getting tune ups/cleanings elsewhere and will only use them for warranty issues since we have had NOTHING but problems with them."

Jacqueline G on July 2024

When you need AC heating or plumbing services, look no further than Horizon Services. For nearly 30 years, we’ve been the trusted name in plumbing heating, and air conditioning, offering an unmatched level of service at reasonable rates.

"Less than 5 years ago, I spent in excess of $10,000 to have a new unit installed with a 10 year warranty. I should have seen the red flags from the very beginning. The sales representative told us additional vents would be installed and when the installation crew showed up, that did not happen. Fast forward to the present and I am now on my 4th phone call for an appointment this season, 3 days so far of not being able to work as I waited for a technician to come diagnose the problem. The 3rd. tech came last night and indicated that the work the other tech did was not for the root of the problem. (I was told in front of witnesses that the work needed to be done, was not covered under warranty, would cost me $367 and would fix my issues)In fact, the 3rd tech only made the issue worse by leaving our attic return unscrewed and overfilling our unit with Freon that the 4th tech had to remove from our system. Upon leaving last night I was told that everything was corrected. Today - my home is slowly creeping up in temperature (presently 80 degrees inside, while set to 72). The company keeps trying to sell me a "maintenance plan" and I keep reiterating to EVERY one who pushes it that we have been getting tune ups/cleanings elsewhere and will only use them for warranty issues since we have had NOTHING but problems with them."

Jacqueline G on July 2024

Avatar for Simeon Batts Construction, LLC

Simeon Batts Construction, LLC

5.00(
1
)
•Approved Pro

Simeon Batts Construction, LLC

5.00(
1
)
•Approved Pro
Customers say: Quick response
Recommended by 100% of Angi customers
Recommended by 100% of HomeAdvisor customers
10 years of experience

At Simeon Batts Construction, LLC. We offer our 10 years of experience in any handyman services, From bathroom and kitchen remodeling to the window and doors installation, We can do it all. Contact us today for a Free Estimate. Bathroom Remodeling; Kitchen Remodeling; General Contractor; Delaware Contractor; General Handyman Handyman Service, Handyman, Home Maintenance Services, Handyman Company, Professional Handyman Services bathroom/kitchen remodeling, painting, drywall, pressure washing flooring, window and doors installation // Moneymaker's - Remodeling / Handyman http://simeonbattsconstruction.com/

"We had our back porch replaced, And the work was done beautifully. Very sturdy and pretty."

Dana P on January 2025

At Simeon Batts Construction, LLC. We offer our 10 years of experience in any handyman services, From bathroom and kitchen remodeling to the window and doors installation, We can do it all. Contact us today for a Free Estimate. Bathroom Remodeling; Kitchen Remodeling; General Contractor; Delaware Contractor; General Handyman Handyman Service, Handyman, Home Maintenance Services, Handyman Company, Professional Handyman Services bathroom/kitchen remodeling, painting, drywall, pressure washing flooring, window and doors installation // Moneymaker's - Remodeling / Handyman http://simeonbattsconstruction.com/

"We had our back porch replaced, And the work was done beautifully. Very sturdy and pretty."

Dana P on January 2025

Avatar for Sunny's Services

Sunny's Services

4.80(
43
)
•Approved Pro

Sunny's Services

4.80(
43
)
•Approved Pro
Customers say: True professional
102 local quotes requested
24 years of experience

WE ARE A SMALL OWNER OPERATED BUSINESS. OUR MISSION IS TO PROVIDE THE BEST HANDYMAN AND JUNK REMOVAL SERVICES IN OUR MARKET WITH GREAT SERVICE AND BELOW MARKET PRICES. WE ARE AVAILABLE 7 DAYS PER WEEK

"They were fast, had good pricing and were very good to work with. "

Mia B on January 2026

WE ARE A SMALL OWNER OPERATED BUSINESS. OUR MISSION IS TO PROVIDE THE BEST HANDYMAN AND JUNK REMOVAL SERVICES IN OUR MARKET WITH GREAT SERVICE AND BELOW MARKET PRICES. WE ARE AVAILABLE 7 DAYS PER WEEK

"They were fast, had good pricing and were very good to work with. "

Mia B on January 2026

T.K. Heating & Cooling

5.00(
2
)

T.K. Heating & Cooling

5.00(
2
)
Customers say: Quick response
Recommended by 100% of Angi customers
Recommended by 100% of HomeAdvisor customers

Small business. Competative Rates. All work is warranteed. Top Quality Workmanship.

Small business. Competative Rates. All work is warranteed. Top Quality Workmanship.

Avatar for Auto Transport - United Freight Of America

Auto Transport - United Freight Of America

4.84(
920
)

Auto Transport - United Freight Of America

4.84(
920
)
Customers say: Quality work
Recommended by 96% of Angi customers
Recommended by 96% of HomeAdvisor customers

United Freight of America is your all inclusive transport solution. CONTACT US FOR A QUOTE. please include pick up and Drop off locations and vehicle information

"Excellent, no problems. My car was new the first year I used the service and there has never been any damage during the transports. The men picking up and delivering the car have always been pleasant and cooperative. Both Ely and Guy at United Transport has been highly responsive to my needs. I would highly recommend this company."

CLAUDIA H on October 2021

United Freight of America is your all inclusive transport solution. CONTACT US FOR A QUOTE. please include pick up and Drop off locations and vehicle information

"Excellent, no problems. My car was new the first year I used the service and there has never been any damage during the transports. The men picking up and delivering the car have always been pleasant and cooperative. Both Ely and Guy at United Transport has been highly responsive to my needs. I would highly recommend this company."

CLAUDIA H on October 2021

Harold Myers Fuel

5.00(
3
)

Harold Myers Fuel

5.00(
3
)
Customers say: Quick response
Recommended by 100% of Angi customers
Recommended by 100% of HomeAdvisor customers

Family owned and operated.

Family owned and operated.

...
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FAQs for thermostat installation and replacement projects in New Castle, DE

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 New Castle, DE 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