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Thermostat installers and replacers in Smithtown

Avatar for RVM Heating & Air Conditioning
RVM Heating & Air Conditioning
66 Orient Ave
4.92(
20
)
Approved Pro
RVM Heating & Air Conditioning
66 Orient Ave
4.92(
20
)
Approved Pro
Super Service Award
Customers say: Quick response
Recommended by 95% of Angi customers
Recommended by 95% of HomeAdvisor customers
21 local quotes requested

With over 5 years of experience, RVM Heating & Air Conditioning is committed to excellence every aspect of our business. We uphold a standard of integrity bound by fairness, honesty, and personal responsibility. Our distinction is the quality of service we bring to our customers. Accurate knowledge of our trade combined with ability is what makes us true professionals. Above all, we are watchful of our customers' interests and make their concerns the basis of our business. Call us today!

"Rene and Mauricio were very professional, efficient, and accommodating. Their estimates were fair and they stuck to their quote. They were very respectful of our home and did a great job both outside and in. They were responsive to both our needs and questions. The units are very quiet and keeping us cool in this crazy heat wave. I highly recommend this company"

Judith G on June 2024

With over 5 years of experience, RVM Heating & Air Conditioning is committed to excellence every aspect of our business. We uphold a standard of integrity bound by fairness, honesty, and personal responsibility. Our distinction is the quality of service we bring to our customers. Accurate knowledge of our trade combined with ability is what makes us true professionals. Above all, we are watchful of our customers' interests and make their concerns the basis of our business. Call us today!

"Rene and Mauricio were very professional, efficient, and accommodating. Their estimates were fair and they stuck to their quote. They were very respectful of our home and did a great job both outside and in. They were responsive to both our needs and questions. The units are very quiet and keeping us cool in this crazy heat wave. I highly recommend this company"

Judith G on June 2024


Avatar for Carlos Home Improvement
Carlos Home Improvement
40 Ponder Lane
New on HomeAdvisorNew on Angi
Approved Pro
Carlos Home Improvement
40 Ponder Lane
New on AngiNew on HomeAdvisor
Approved Pro
15 years of experience
Free onsite estimate

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. 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 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. 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.


Avatar for Just Chillin HVACR, LLC
Just Chillin HVACR, LLC
1227 Hyman Ave
4.93(
15
)
Approved Pro
Just Chillin HVACR, LLC
1227 Hyman Ave
4.93(
15
)
Approved Pro
Customers say: True professional
Recommended by 100% of Angi customers
Recommended by 100% of HomeAdvisor customers
7 years of experience

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.

"Not only done right but done more expeditiously than expected"

William W on May 2024

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.

"Not only done right but done more expeditiously than expected"

William W on May 2024


Abreu’s A/C & Refrigeration
38 E Chestnut Street
New on HomeAdvisorNew on Angi
Approved Pro
Abreu’s A/C & Refrigeration
38 E Chestnut Street
New on AngiNew on HomeAdvisor
Approved Pro
5 years of experience

Abreu’s A/C & Heating Company is committed to excellence in every aspect of our business. We uphold a standard of integrity bound by fairness, honesty, and personal responsibility. Our distinction is the quality of service we bring to our customers. Accurate knowledge of our trade combined with ability is what makes us true professionals. Above all, we are watchful of our customers' interests and make their concerns the basis of our business.

Abreu’s A/C & Heating Company is committed to excellence in every aspect of our business. We uphold a standard of integrity bound by fairness, honesty, and personal responsibility. Our distinction is the quality of service we bring to our customers. Accurate knowledge of our trade combined with ability is what makes us true professionals. Above all, we are watchful of our customers' interests and make their concerns the basis of our business.


Avatar for Advanced Property Solutions
Advanced Property Solutions
5.00(
8
)
Approved Pro
Advanced Property Solutions
5.00(
8
)
Approved Pro
Customers say: Quick response
Recommended by 100% of Angi customers
Recommended by 100% of HomeAdvisor customers
10 years of experience

1. Reliability and Trustworthiness: Customers value a handyman they can rely on to show up on time and complete the job as promised. If your business has a reputation for being dependable and honest, that’s a huge plus. 2. Quality Workmanship: Your business likely takes pride in providing high-quality work, ensuring that every task—no matter how big or small—is completed to a high standard. This attention to detail helps build long-term customer relationships. 3. Wide Range of Services: People appreciate a one-stop solution for various home repairs and maintenance needs. If your business offers a diverse set of skills (e.g., plumbing fixes, electrical work, carpentry, etc.), that convenience is appealing. 4. Fair Pricing: Transparent and fair pricing can attract customers who want quality service without worrying about hidden fees or inflated costs. 5. Personalized Customer Service: Customers want to feel valued and heard. If your business offers friendly, personalized service and takes the time to listen to customer concerns, that’s a significant reason people would choose you. 6. Quick Response and Availability: Many home repairs can’t wait. If you offer flexible scheduling or emergency services, people are more likely to call on you when they need help. 7. Positive Reviews and Word of Mouth: If your business has a strong track record of satisfied customers who recommend you to their friends and family, that social proof is invaluable.

"Very well."

Jean W on November 2024

1. Reliability and Trustworthiness: Customers value a handyman they can rely on to show up on time and complete the job as promised. If your business has a reputation for being dependable and honest, that’s a huge plus. 2. Quality Workmanship: Your business likely takes pride in providing high-quality work, ensuring that every task—no matter how big or small—is completed to a high standard. This attention to detail helps build long-term customer relationships. 3. Wide Range of Services: People appreciate a one-stop solution for various home repairs and maintenance needs. If your business offers a diverse set of skills (e.g., plumbing fixes, electrical work, carpentry, etc.), that convenience is appealing. 4. Fair Pricing: Transparent and fair pricing can attract customers who want quality service without worrying about hidden fees or inflated costs. 5. Personalized Customer Service: Customers want to feel valued and heard. If your business offers friendly, personalized service and takes the time to listen to customer concerns, that’s a significant reason people would choose you. 6. Quick Response and Availability: Many home repairs can’t wait. If you offer flexible scheduling or emergency services, people are more likely to call on you when they need help. 7. Positive Reviews and Word of Mouth: If your business has a strong track record of satisfied customers who recommend you to their friends and family, that social proof is invaluable.

"Very well."

Jean W on November 2024


Avatar for Mike’s Amazing Maintenance
Mike’s Amazing Maintenance
5.00(
1
)
Approved Pro
Mike’s Amazing Maintenance
5.00(
1
)
Approved Pro
Customers say: Quick response
Recommended by 100% of Angi customers
Recommended by 100% of HomeAdvisor customers
2 years of experience

Over 20 years of experience doing home maintenance. My specialities include: painting, woodwork, demolition and general home repairs. I work with every customer to ensure they are satisfied with every job!

"I needed to have a giant couch moved up a flight of stairs, which looked impossible to me. However, Mike amazingly moved the couch quickly and efficiently without a problem. Mike responds quickly, easy to work, and is reasonably priced. I will definitely hire him again and highly recommend him!"

Cathy M on January 2025

Over 20 years of experience doing home maintenance. My specialities include: painting, woodwork, demolition and general home repairs. I work with every customer to ensure they are satisfied with every job!

"I needed to have a giant couch moved up a flight of stairs, which looked impossible to me. However, Mike amazingly moved the couch quickly and efficiently without a problem. Mike responds quickly, easy to work, and is reasonably priced. I will definitely hire him again and highly recommend him!"

Cathy M on January 2025


Avatar for The Guy
The Guy
5.00(
2
)
Approved Pro
The Guy
5.00(
2
)
Approved Pro
Customers say: Quick response
Recommended by 100% of Angi customers
Recommended by 100% of HomeAdvisor customers
16 years of experience

All types of home repairs , electric , plumbing , carpenter , painting I take your honey do list and turn it into a honey done list if you have a problem just call THE GUY to solve it

"Ed responded quickly! He stopped by & repaired the door. I now do not have to struggle to open, close & lock the door. Fantastic work! We will be hiring Ed again soon for sure!"

Joan B on April 2025

All types of home repairs , electric , plumbing , carpenter , painting I take your honey do list and turn it into a honey done list if you have a problem just call THE GUY to solve it

"Ed responded quickly! He stopped by & repaired the door. I now do not have to struggle to open, close & lock the door. Fantastic work! We will be hiring Ed again soon for sure!"

Joan B on April 2025


RVM Heating & Air Conditioning
48 Heyward St
New on HomeAdvisorNew on Angi
Approved Pro
RVM Heating & Air Conditioning
48 Heyward St
New on AngiNew on HomeAdvisor
Approved Pro
1317 local quotes requested
5 years of experience

With over 5 years of experience, RVM Heating & Air Conditioning is committed to excellence every aspect of our business. We uphold a standard of integrity bound by fairness, honesty, and personal responsibility. Our distinction is the quality of service we bring to our customers. Accurate knowledge of our trade combined with ability is what makes us true professionals. Above all, we are watchful of our customers' interests and make their concerns the basis of our business. Call us today! Free Estimates!

With over 5 years of experience, RVM Heating & Air Conditioning is committed to excellence every aspect of our business. We uphold a standard of integrity bound by fairness, honesty, and personal responsibility. Our distinction is the quality of service we bring to our customers. Accurate knowledge of our trade combined with ability is what makes us true professionals. Above all, we are watchful of our customers' interests and make their concerns the basis of our business. Call us today! Free Estimates!


Avatar for JACCEL & HEAT MECHANICAL
JACCEL & HEAT MECHANICAL
Based In
5.00(
5
)
Approved Pro
JACCEL & HEAT MECHANICAL
Based In
5.00(
5
)
Approved Pro
Customers say: Quick response
Recommended by 100% of Angi customers
Recommended by 100% of HomeAdvisor customers
1 years of experience

Over at Jaccel & Heat Mechanical we specialize on installs for heating, cooling and refrigeration systems for residential and commercial customers. I have been in the trades for over 22 years. My goal is to provide professionalism, workmanship, efficiency accompanied by competitive pricing that will guarantee customer satisfaction upon job completion.

"We recently had the pleasure of working with JACCEL & HEAT MECHANICAL and we couldn't be happier with the results. From start to finish, their team demonstrated a remarkable level of skill, professionalism, and attention to detail."

Angela P on December 2024

Over at Jaccel & Heat Mechanical we specialize on installs for heating, cooling and refrigeration systems for residential and commercial customers. I have been in the trades for over 22 years. My goal is to provide professionalism, workmanship, efficiency accompanied by competitive pricing that will guarantee customer satisfaction upon job completion.

"We recently had the pleasure of working with JACCEL & HEAT MECHANICAL and we couldn't be happier with the results. From start to finish, their team demonstrated a remarkable level of skill, professionalism, and attention to detail."

Angela P on December 2024


Avatar for Paradise Handyman Services
Paradise Handyman Services
5.00(
4
)
Approved Pro
Paradise Handyman Services
5.00(
4
)
Approved Pro
Customers say: Quick response
Recommended by 100% of Angi customers
Recommended by 100% of HomeAdvisor customers
2 years of experience

We are there for your home remodeling and repair needs. We also specialize in building storage compartments and shelving, garage remodeling, and junk removal.

"Yes, execllent job done"

Robin S on February 2025

We are there for your home remodeling and repair needs. We also specialize in building storage compartments and shelving, garage remodeling, and junk removal.

"Yes, execllent job done"

Robin S on February 2025

...
Showing 1-10 of 961

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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