Top-rated heating and air conditioning pros.

Get matched with top heating and air conditioning pros in Bethlehem, CT

Enter your zip and get matched with up to 5 pros

TRUSTED BY BETHLEHEM, CT HOMEOWNERS

  • Average homeowner rating star icon4.8
    Average homeowner rating
  • Verified reviews icon13
    Verified heating and air conditioning services reviews

Find Heating and air conditioning pros in Bethlehem

Avatar for Agile Construction and Home Improvement

Agile Construction and Home Improvement

4.62(
45
)
Approved Pro

Agile Construction and Home Improvement

4.62(
45
)
Approved Pro
Super Service Award
Customers say: Super punctual
25 years of experience
Free onsite estimate

With over 12 years in the construction industry, we are an owned and operated company that will get the job done right the first time. We can do big or small projects and we can work out your payment too. Our company's mission is to build relationships with our customers, so they always know who to call. We look forward to working with you, give us all call today!

"They did a great job on everything. Would hire again."

Joshua M on July 2025

With over 12 years in the construction industry, we are an owned and operated company that will get the job done right the first time. We can do big or small projects and we can work out your payment too. Our company's mission is to build relationships with our customers, so they always know who to call. We look forward to working with you, give us all call today!

"They did a great job on everything. Would hire again."

Joshua M on July 2025


Avatar for Perfect Timing Heating & Cooling

Perfect Timing Heating & Cooling

5.00(
14
)
Approved Pro

Perfect Timing Heating & Cooling

5.00(
14
)
Approved Pro
Customers say: Quick response
21 years of experience
Free onsite estimate

Connecticut's highest rated heating & air conditioning company. 1,700+ 5 star reviews. In business since 2004 with currently 18 experienced technicians and call center employees. Please call today to schedule your appointment at (860) 215-3598

"The team was super helpful and helped provide solutions to keep my family cool during the summer months. They were a pleasure to work with."

John S on October 2023

Connecticut's highest rated heating & air conditioning company. 1,700+ 5 star reviews. In business since 2004 with currently 18 experienced technicians and call center employees. Please call today to schedule your appointment at (860) 215-3598

"The team was super helpful and helped provide solutions to keep my family cool during the summer months. They were a pleasure to work with."

John S on October 2023


Thurston Duct Cleaning and Powerwashing

4.71(
55
)
Approved Pro

Thurston Duct Cleaning and Powerwashing

4.71(
55
)
Approved Pro
Customers say: Quick response
Recommended by 98% of Angi customers
Recommended by 98% of HomeAdvisor customers
25 years of experience

Thurston Duct Cleaning, is owned and operated by me, Jim Thurston. I and my team of air cleaning specialists have over 10 years experience servicing customers throughout the state of Connecticut

"Great experience"

Ellen S on December 2023

Thurston Duct Cleaning, is owned and operated by me, Jim Thurston. I and my team of air cleaning specialists have over 10 years experience servicing customers throughout the state of Connecticut

"Great experience"

Ellen S on December 2023


Avatar for Wa/ve Sound and Security, LLC

Wa/ve Sound and Security, LLC

4.93(
54
)
Approved Pro

Wa/ve Sound and Security, LLC

4.93(
54
)
Approved Pro
Super Service Award
Customers say: True professional
18 years of experience
Free onsite estimate

Founded in 2007, Wa/ve Sound and Security, LLC has grown into a trusted provider of innovative solutions for security, entertainment, and productivity. We prioritize educating our clients so they can make informed decisions about the systems they invest in. Our team takes pride in maintaining a clean and organized work environment, always striving to leave each job site better than we found it.

"Wes did an amazing job getting our dental practice music back up and running after a power surge took it out. His prompt attention brought the morality back up in the office while treating the patients. He was extremely communicative throughout the whole process. Thank you Wes!"

Samantha V on March 2025

Founded in 2007, Wa/ve Sound and Security, LLC has grown into a trusted provider of innovative solutions for security, entertainment, and productivity. We prioritize educating our clients so they can make informed decisions about the systems they invest in. Our team takes pride in maintaining a clean and organized work environment, always striving to leave each job site better than we found it.

"Wes did an amazing job getting our dental practice music back up and running after a power surge took it out. His prompt attention brought the morality back up in the office while treating the patients. He was extremely communicative throughout the whole process. Thank you Wes!"

Samantha V on March 2025


Avatar for Omni Mechanical Services, LLC

Omni Mechanical Services, LLC

4.61(
79
)
Approved Pro

Omni Mechanical Services, LLC

4.61(
79
)
Approved Pro
Customers say: Quality work
Recommended by 96% of Angi customers
Recommended by 96% of HomeAdvisor customers
30 years of experience

We have over 20 years of experience in the Heating and Cooling trade. Here at Omni Mechanical Services, LLC, we pride our company on reliability, great communication, integrity, and quality work. We are experts in our trade and will do our best to keep you as educated as we can on your particular task or project. We look forward to earning your business!

"I hired this company to Indy my air conditioner , it was represented by Tom . Hi seemed very nice and intelligent person , so I trusted him . If I only can imagine what they would do to my house I would never let this people close to my house . I am very disappointed and shocked about coming to my home and finding the disturbing mess and unprofessional work done. I have witnessed a few things in the previous days but have not said anything. What I came home to yesterday was disgusting and caused damage to my personal property. Oil was thrown into my shower, dirt all over my rugs in the basement, door broken, my towels beyond filthy with the mess your workers did. Oil dumped all over my shower and me getting dizzy from the smell and almost fainted. I do not need to write anymore as the evidence with pictures explains everything. This is the first time I have experienced such terrible customer service. When I asked them to came and fix a problem which was also don by the company they simply said to me Goodby , we do not care about it à ¢à  à  please didnà ¢à  à  t trust this people you can call me and ask me about the horrible damage they did to my house 203-243-0946 . The drain system was not install correctly and now I have pay almost the amount I paid for their job"

Natalija J on January 2024

We have over 20 years of experience in the Heating and Cooling trade. Here at Omni Mechanical Services, LLC, we pride our company on reliability, great communication, integrity, and quality work. We are experts in our trade and will do our best to keep you as educated as we can on your particular task or project. We look forward to earning your business!

"I hired this company to Indy my air conditioner , it was represented by Tom . Hi seemed very nice and intelligent person , so I trusted him . If I only can imagine what they would do to my house I would never let this people close to my house . I am very disappointed and shocked about coming to my home and finding the disturbing mess and unprofessional work done. I have witnessed a few things in the previous days but have not said anything. What I came home to yesterday was disgusting and caused damage to my personal property. Oil was thrown into my shower, dirt all over my rugs in the basement, door broken, my towels beyond filthy with the mess your workers did. Oil dumped all over my shower and me getting dizzy from the smell and almost fainted. I do not need to write anymore as the evidence with pictures explains everything. This is the first time I have experienced such terrible customer service. When I asked them to came and fix a problem which was also don by the company they simply said to me Goodby , we do not care about it à ¢à  à  please didnà ¢à  à  t trust this people you can call me and ask me about the horrible damage they did to my house 203-243-0946 . The drain system was not install correctly and now I have pay almost the amount I paid for their job"

Natalija J on January 2024


Avatar for Chernin HVAC & Refrigeration L.L.C.

Chernin HVAC & Refrigeration L.L.C.

5.00(
11
)
Approved Pro

Chernin HVAC & Refrigeration L.L.C.

5.00(
11
)
Approved Pro
Customers say: Quality work
Recommended by 90% of Angi customers
Recommended by 90% of HomeAdvisor customers
3 years of experience

We have a $200 diagnostic fee, this includes travel, service call fee and waiver for the first hour of work. 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. Unfortunately, at this time we do NOT install geothermal heating and cooling. We charge $250 to come out and meet with you and to discuss your HVAC project options. We will walk you through the incentive and rebate process as well. If you decide to use us as your mechanical contractor, we will issue you a credit of $250 on your invoice. We only converse in English.

"This company did a grest job for me. Very professional and was great with comminication and timframes. Highly recommend."

Bryce W on June 2024

We have a $200 diagnostic fee, this includes travel, service call fee and waiver for the first hour of work. 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. Unfortunately, at this time we do NOT install geothermal heating and cooling. We charge $250 to come out and meet with you and to discuss your HVAC project options. We will walk you through the incentive and rebate process as well. If you decide to use us as your mechanical contractor, we will issue you a credit of $250 on your invoice. We only converse in English.

"This company did a grest job for me. Very professional and was great with comminication and timframes. Highly recommend."

Bryce W on June 2024


Avatar for All Around Mechanical Services, Inc.

All Around Mechanical Services, Inc.

5.00(
29
)
Approved Pro

All Around Mechanical Services, Inc.

5.00(
29
)
Approved Pro
Customers say: Quick response
Recommended by 100% of Angi customers
Recommended by 100% of HomeAdvisor customers
14 years of experience

All Around Mechanical Services, Inc., is your local, reliable, family owned heating, cooling and plumbing professional. Fully licensed and insured, we work with you to make sure your project is completed the right way the first time around. Plus, we always treat you, your family, and your property with absolute respect. Customer loyalty is very important to us, so we take the time to make sure you are completely satisfied. We take pride in the fact that our customers stick with us for the long term. We approach every job with professionalism and courtesy, and maintain a standard of quality above that of others. Whether you need a small repair job, large installation, or any sized project in between, you can count on us. Call us today for a fast and friendly quote! We will do a great job for you at a fair price.

"All Around Mechanical Services, Inc. and D. Scott are teriffic! He is honest and knows what he's doing...no fudging, no double talk, no bs! Does what he says and an incredible job on time or sooner! EXCELLENT, Straight A+"

Happy C on July 2020

All Around Mechanical Services, Inc., is your local, reliable, family owned heating, cooling and plumbing professional. Fully licensed and insured, we work with you to make sure your project is completed the right way the first time around. Plus, we always treat you, your family, and your property with absolute respect. Customer loyalty is very important to us, so we take the time to make sure you are completely satisfied. We take pride in the fact that our customers stick with us for the long term. We approach every job with professionalism and courtesy, and maintain a standard of quality above that of others. Whether you need a small repair job, large installation, or any sized project in between, you can count on us. Call us today for a fast and friendly quote! We will do a great job for you at a fair price.

"All Around Mechanical Services, Inc. and D. Scott are teriffic! He is honest and knows what he's doing...no fudging, no double talk, no bs! Does what he says and an incredible job on time or sooner! EXCELLENT, Straight A+"

Happy C on July 2020


Avatar for Supreme Electric, LLC

Supreme Electric, LLC

4.46(
101
)
Approved Pro

Supreme Electric, LLC

4.46(
101
)
Approved Pro
Customers say: True professional
Recommended by 90% of Angi customers
Recommended by 90% of HomeAdvisor customers
11 years of experience

Supreme Electric LLC is one of the most recognized electrical companies in the State of Connecticut offering services throughout the State. Supreme Electric LLC has a A+ rating by the BETTER BUSINESS BUREAU. Supreme Electric LLC specializes in residential & commercial services ranging from service calls to new construction as well as old construction projects. Supreme Electric LLC's number one focus is customer satisfaction and building healthy business relationships with our customers. We stand by that and that's what separates us from the rest. There's no job too big and no job too small. With all of our resources we'll be sure to keep you up to date with the latest and greatest technology. We provide fast, dependable, reliable, and professional services you can count on.

"Mike was excellent, respectful of property and very professional. The work was completed timely and to my great satisfaction. I would definitely use Supreme Electric again and I highly recommend this company."

Suzanne C on September 2024

Supreme Electric LLC is one of the most recognized electrical companies in the State of Connecticut offering services throughout the State. Supreme Electric LLC has a A+ rating by the BETTER BUSINESS BUREAU. Supreme Electric LLC specializes in residential & commercial services ranging from service calls to new construction as well as old construction projects. Supreme Electric LLC's number one focus is customer satisfaction and building healthy business relationships with our customers. We stand by that and that's what separates us from the rest. There's no job too big and no job too small. With all of our resources we'll be sure to keep you up to date with the latest and greatest technology. We provide fast, dependable, reliable, and professional services you can count on.

"Mike was excellent, respectful of property and very professional. The work was completed timely and to my great satisfaction. I would definitely use Supreme Electric again and I highly recommend this company."

Suzanne C on September 2024


Avatar for Total Mechanical Systems, LLC

Total Mechanical Systems, LLC

4.56(
122
)
Approved Pro

Total Mechanical Systems, LLC

4.56(
122
)
Approved Pro
Customers say: Quality work
Recommended by 92% of Angi customers
Recommended by 92% of HomeAdvisor customers
23 years of experience

Total Mechanical Systems has been serving Connecticut homeowners for 20+ years. TMS is Connecticut’s leading provider of residential HVAC, Plumbing, Electrical, Water Treatment, Water Heating, and Indoor Air Quality installation, repair, and maintenance comfort solutions. We are fully licensed and insured, a Connecticut Green Bank award winner, Nextdoor Favorite, BBB A+ rated, Google Guaranteed, Angi Super Service Award winner, and winner in the Best of Hartford readers poll. We are also proud to be home services partners with the largest home improvement retailers in the country. At TMS, our commitment to service extends beyond just our customers. We believe in the power of community and the importance of giving back. We are committed to making a positive impact and supporting initiatives that strengthen and uplift our communities. Experience TOTAL Comfort with TMS... where Trust Meets Service. "TMS Does It Best!"

"Our water heater broke during icy weather. Techs Florian and Michelle came out as scheduled. and were able to install a new water heater the same day. We appreciate the professionalism and hard work of these two techs. Thank you! "

Yesy v on December 2025

Total Mechanical Systems has been serving Connecticut homeowners for 20+ years. TMS is Connecticut’s leading provider of residential HVAC, Plumbing, Electrical, Water Treatment, Water Heating, and Indoor Air Quality installation, repair, and maintenance comfort solutions. We are fully licensed and insured, a Connecticut Green Bank award winner, Nextdoor Favorite, BBB A+ rated, Google Guaranteed, Angi Super Service Award winner, and winner in the Best of Hartford readers poll. We are also proud to be home services partners with the largest home improvement retailers in the country. At TMS, our commitment to service extends beyond just our customers. We believe in the power of community and the importance of giving back. We are committed to making a positive impact and supporting initiatives that strengthen and uplift our communities. Experience TOTAL Comfort with TMS... where Trust Meets Service. "TMS Does It Best!"

"Our water heater broke during icy weather. Techs Florian and Michelle came out as scheduled. and were able to install a new water heater the same day. We appreciate the professionalism and hard work of these two techs. Thank you! "

Yesy v on December 2025


Avatar for Dons Fine Woodworking

Dons Fine Woodworking

5.00(
8
)
Approved Pro

Dons Fine Woodworking

5.00(
8
)
Approved Pro
Super Service Award
Customers say: Quality work
2 years of experience
Free onsite estimate

I specialize in cabinetry and finishing work have experience since the 1990's! We can also help with handyman services, home repairs, home improvements, painting, flooring, ceiling fan installs, TV mounting, furniture assembly, and more! 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!

"Need handyman work...look no more. Don did excellent work, what he said,and WHEN he said he would. Ceiling tile project. Cleaned up after, took rubbish away, cooperative to work with and reasonably priced. I very highly recommend him for your handyman needs. "

melvin p on December 2025

I specialize in cabinetry and finishing work have experience since the 1990's! We can also help with handyman services, home repairs, home improvements, painting, flooring, ceiling fan installs, TV mounting, furniture assembly, and more! 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!

"Need handyman work...look no more. Don did excellent work, what he said,and WHEN he said he would. Ceiling tile project. Cleaned up after, took rubbish away, cooperative to work with and reasonably priced. I very highly recommend him for your handyman needs. "

melvin p on December 2025

...
Showing 1-10 of 248
Heating and Air Conditioning questions, answered by experts

It's recommended to change HVAC air filters every one to three months. The frequency depends on factors such as filter type, indoor air quality, and whether there are pets or people with allergies in the household. Regular filter changes maintain proper airflow, improve indoor air quality, and ensure efficient HVAC system operation.

It is possible to add air conditioning to an older home, but it can be very expensive to do so. Expect to pay anywhere from $6,000 to $17,000 or more for the ductwork and AC unit. You’ll also have to hack into the home’s walls and ceilings to add ductwork, which can impact the aesthetics of an old home.

Yes, it’s best to turn off an AC unit that’s blowing hot air to prevent system damage and avoid expensive energy bills. If you let the AC continue running, it will put more strain on the condenser coil and compressor. Plus, if the AC is blowing hot air because of a refrigerant leak, it can also lead to a frozen evaporator coil.

You should only run your dehumidifier in warmer months, such as spring and summer, to get the best performance out of your system. The air gets drier when temperatures drop in the winter months, creating less of a need for a dehumidifier. However, when to run a dehumidifier will depend on your local climate.

Fall and spring are the best times of year to purchase an air conditioner, furnace, or other HVAC components. In fact, by shopping during these periods, you could save 10% to 15% on an AC unit. For HVAC professionals, spring and fall are less busy than summer and winter, when extreme temperatures create an urgent demand for heating and cooling.

The Bethlehem, CT homeowners’ guide to heating and air conditioning services

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

What do you need done? We’ll find top pros.
  • 🌱 "Mow a small front yard"
  • 🛠 "Fix a leaking pipe under the sink"
  • 🏠 "Repair shingles on an asphalt roof"