Top-rated heating and air conditioning pros.

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

There are 5 highly-rated local heating and air conditioning pros.

TRUSTED BY OLD SAYBROOK, CT HOMEOWNERS

  • Average homeowner rating star icon4.6
    Average homeowner rating
  • Verified reviews icon170
    Verified heating and air conditioning services reviews

Find Heating and air conditioning pros in Old Saybrook

Avatar for East Coast Mechanical Inc

East Coast Mechanical Inc

4.53(
89
)
Approved Pro

East Coast Mechanical Inc

4.53(
89
)
Approved Pro
Customers say: Quality work
112 local quotes requested
31 years of experience

Formed in 1994 by Norm Wium, East Coast Mechanical Inc. has become one of the preeminent Trane Comfort Specialist Dealers in the area. We specialize in residential renovation and replacements along with residential/light commercial construction and service. Located at 1187 Highland Avenue in Cheshire, we have a complete fabrication shop, office and service parts inventory on site. We offer 24-hour service, maintenance agreements and, of course, free evaluations and heat loss calculations for comfort system installations. Additional email - [email protected].

"Perfect as I expected and more. East Coast installed a central air system and a ductless heating and calling system in my house. They were much affordable than their competitor."

Halim E on August 2023

Formed in 1994 by Norm Wium, East Coast Mechanical Inc. has become one of the preeminent Trane Comfort Specialist Dealers in the area. We specialize in residential renovation and replacements along with residential/light commercial construction and service. Located at 1187 Highland Avenue in Cheshire, we have a complete fabrication shop, office and service parts inventory on site. We offer 24-hour service, maintenance agreements and, of course, free evaluations and heat loss calculations for comfort system installations. Additional email - [email protected].

"Perfect as I expected and more. East Coast installed a central air system and a ductless heating and calling system in my house. They were much affordable than their competitor."

Halim E on August 2023


Avatar for The Guild

The Guild

5.00(
4
)
Approved Pro

The Guild

5.00(
4
)
Approved Pro
Customers say: Quick response
Recommended by 100% of Angi customers
Recommended by 100% of HomeAdvisor customers
3 years of experience

The Guild 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 work smart, and it gets done right.

"Extremely professional and patient and above all else honest and knowledgeable! I would recommend this company to anyone you be a fool, not to go with them"

Jennifer F on June 2023

The Guild 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 work smart, and it gets done right.

"Extremely professional and patient and above all else honest and knowledgeable! I would recommend this company to anyone you be a fool, not to go with them"

Jennifer F on June 2023


Avatar for Scotti Mechanical Services

Scotti Mechanical Services

4.80(
58
)
Approved Pro

Scotti Mechanical Services

4.80(
58
)
Approved Pro
Customers say: Quality work
15 local quotes requested
5 years of experience

Here at Scotti Mechanical Services I have over 30 years of HVAC experience in oil heating (NO gas work) and air conditioning. I pride myself on my diligence and attention to detail, and make a dedicated effort to reduce repair/installation cost. There is no job too big or too small that I can't handle in a timely manner, please don't hesitate to call today. I look forward to earning your business. I do provide an after-hours emergency service.

"He didn't do any air side of furnace replaced ignitor we had loud bang noise it was because we needed the furnace to be cleaned and vacuumed I saw pics from real furnace guy it was full of rust and cresol flakes he never vacuumed anything terrible job never fixed problem"

Kenneth B on October 2024

Here at Scotti Mechanical Services I have over 30 years of HVAC experience in oil heating (NO gas work) and air conditioning. I pride myself on my diligence and attention to detail, and make a dedicated effort to reduce repair/installation cost. There is no job too big or too small that I can't handle in a timely manner, please don't hesitate to call today. I look forward to earning your business. I do provide an after-hours emergency service.

"He didn't do any air side of furnace replaced ignitor we had loud bang noise it was because we needed the furnace to be cleaned and vacuumed I saw pics from real furnace guy it was full of rust and cresol flakes he never vacuumed anything terrible job never fixed problem"

Kenneth B on October 2024


Avatar for EREG PROPERTY MAINTENANCE & MANAGEMENT

EREG PROPERTY MAINTENANCE & MANAGEMENT

5.00(
70
)
Approved Pro

EREG PROPERTY MAINTENANCE & MANAGEMENT

5.00(
70
)
Approved Pro
Customers say: Quick response
81 local quotes requested
5 years of experience

At EREG, we?re your trusted one-stop shop for everything related to residential and commercial properties. From small handyman repairs to large-scale improvements and smart technology integration, our mission is to make property ownership simple, efficient, and worry-free. We specialize in comprehensive handyman services ? including fixture replacement, electrical and GFI work, appliance installation, painting, drywall repair, power washing, seasonal cleanups, and debris removal. Whether it?s furniture assembly, minor remodeling, or ongoing maintenance, EREG delivers quality craftsmanship with dependable service you can count on. What sets us apart is our forward-thinking expertise in the Internet of Things (IoT) ? bringing connectivity and convenience to your space. We design and install smart thermostats, automated lighting, professional audio/video systems, and advanced security solutions that you can monitor and control from anywhere. In addition, EREG proudly provides Elderly Remediation and Senior Safety Services, helping create safer, more accessible living environments for aging adults. From grab bar installations, anti-slip flooring, and improved lighting to smart monitoring systems and emergency alert setups, we help families ensure their loved ones can live comfortably and confidently at home. Beyond handyman and safety services, EREG offers complete property management support ? including real estate assistance, REO and foreclosure applications, remediation, cleaning, and 24/7 property monitoring. Our team of problem solvers are ?get it done? professionals who bring innovation, precision, and reliability to every project. At EREG, you get more than a contractor ? you get a partner dedicated to maintaining, improving, and modernizing your property from A to Z. Smart Solutions. Skilled Hands. One on One support. www.EREGcandoIT.com or call TF 888 288 EREG

"Testimonial for EREG Property Maintenance and Management As one of the premier shoreline HVAC companies, we at Cariati Mechanical are proud to partner with EREG Property Maintenance and Management. Their commitment to excellence and professionalism aligns perfectly with the high standards we set for ourselves and our clients. EREG consistently performs at a level that deserves recognition. Their dedication, reliability, and attention to detail reflect the same values we strive to uphold in our own work. We are proud to align ourselves with a company that shares our vision for quality service and client care. ? Cariati Mechanical, Owner "

Mechanical P on November 2025

At EREG, we?re your trusted one-stop shop for everything related to residential and commercial properties. From small handyman repairs to large-scale improvements and smart technology integration, our mission is to make property ownership simple, efficient, and worry-free. We specialize in comprehensive handyman services ? including fixture replacement, electrical and GFI work, appliance installation, painting, drywall repair, power washing, seasonal cleanups, and debris removal. Whether it?s furniture assembly, minor remodeling, or ongoing maintenance, EREG delivers quality craftsmanship with dependable service you can count on. What sets us apart is our forward-thinking expertise in the Internet of Things (IoT) ? bringing connectivity and convenience to your space. We design and install smart thermostats, automated lighting, professional audio/video systems, and advanced security solutions that you can monitor and control from anywhere. In addition, EREG proudly provides Elderly Remediation and Senior Safety Services, helping create safer, more accessible living environments for aging adults. From grab bar installations, anti-slip flooring, and improved lighting to smart monitoring systems and emergency alert setups, we help families ensure their loved ones can live comfortably and confidently at home. Beyond handyman and safety services, EREG offers complete property management support ? including real estate assistance, REO and foreclosure applications, remediation, cleaning, and 24/7 property monitoring. Our team of problem solvers are ?get it done? professionals who bring innovation, precision, and reliability to every project. At EREG, you get more than a contractor ? you get a partner dedicated to maintaining, improving, and modernizing your property from A to Z. Smart Solutions. Skilled Hands. One on One support. www.EREGcandoIT.com or call TF 888 288 EREG

"Testimonial for EREG Property Maintenance and Management As one of the premier shoreline HVAC companies, we at Cariati Mechanical are proud to partner with EREG Property Maintenance and Management. Their commitment to excellence and professionalism aligns perfectly with the high standards we set for ourselves and our clients. EREG consistently performs at a level that deserves recognition. Their dedication, reliability, and attention to detail reflect the same values we strive to uphold in our own work. We are proud to align ourselves with a company that shares our vision for quality service and client care. ? Cariati Mechanical, Owner "

Mechanical P on November 2025


Avatar for Cariati Mechanical, LLC

Cariati Mechanical, LLC

5.00(
5
)
Approved Pro

Cariati Mechanical, LLC

5.00(
5
)
Approved Pro
Customers say: Quick response
Recommended by 100% of Angi customers
Recommended by 100% of HomeAdvisor customers
3 years of experience

Cariati Mechanical, LLC 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.

"Very professional and an excellent workmanship. I highly recommend Nick and his team at Cariati Mechanical."

Charles S on December 2024

Cariati Mechanical, LLC 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.

"Very professional and an excellent workmanship. I highly recommend Nick and his team at Cariati Mechanical."

Charles S on December 2024


Avatar for Parker Mechanical Heating and Cooling

Parker Mechanical Heating and Cooling

5.00(
12
)
Approved Pro

Parker Mechanical Heating and Cooling

5.00(
12
)
Approved Pro
Customers say: Quick response
123 local quotes requested
2 years of experience

Our mission is to be a provider that brings back the personal touch with our customers.We will build a relationship that will last a lifetime after you see our quality work. As a locally owned and operated business we feel invested in our clients and constantly strive for customer satisfaction. We won't leave until the job is done right! Call or click to schedule an estimate today! CT Energize Heat pump installer network to receive rebates from eversource.

"Jeremy has been great from day one. He always answers his phone and gives prompt, quality and honest service. His prices are more than reasonable and his work is very professional and neat. I would recommend them to anyone looking for HVAC work! "

Nick K on November 2025

Our mission is to be a provider that brings back the personal touch with our customers.We will build a relationship that will last a lifetime after you see our quality work. As a locally owned and operated business we feel invested in our clients and constantly strive for customer satisfaction. We won't leave until the job is done right! Call or click to schedule an estimate today! CT Energize Heat pump installer network to receive rebates from eversource.

"Jeremy has been great from day one. He always answers his phone and gives prompt, quality and honest service. His prices are more than reasonable and his work is very professional and neat. I would recommend them to anyone looking for HVAC work! "

Nick K on November 2025


Avatar for Cawiamca Heating, Cooling, and Electrical

Cawiamca Heating, Cooling, and Electrical

5.00(
44
)
Approved Pro

Cawiamca Heating, Cooling, and Electrical

5.00(
44
)
Approved Pro
Customers say: Quick response
Recommended by 100% of Angi customers
Recommended by 100% of HomeAdvisor customers
183 local quotes requested

FULL SERVICE HEATING, COOLING, AND ELECTRICAL SERVICES. CERTIFIED COLD WEATHER HEAT PUMP INSTALLER -- REBATES AVAILABLE!! Cawiamca Heating, Cooling and Electrical-- Offers top quality heating & cooling & electrical services. Professional Service and Guaranteed Quality Workmanship. Cawiamca is a trusted, BBB A+ Rated Contractor serving the Connecticut Shoreline since 2014.

"Outstanding company and outstanding work performance. Out of many estimates, Cawiamca offer came by e-mail in 24 hrs from the visit. After few clearing Q&A, final detailed contract was sign in person in 48 hrs. All communication was done with the owner OVER THE WEEKEND promptly, with understanding, concern and his willingness to help. Totally impressive for business owner to do that on weekend. Best estimate , best professional work and my gratitude, thanks and best wishes to owner Mr. Ron Pelletier."

Michael K on September 2025

FULL SERVICE HEATING, COOLING, AND ELECTRICAL SERVICES. CERTIFIED COLD WEATHER HEAT PUMP INSTALLER -- REBATES AVAILABLE!! Cawiamca Heating, Cooling and Electrical-- Offers top quality heating & cooling & electrical services. Professional Service and Guaranteed Quality Workmanship. Cawiamca is a trusted, BBB A+ Rated Contractor serving the Connecticut Shoreline since 2014.

"Outstanding company and outstanding work performance. Out of many estimates, Cawiamca offer came by e-mail in 24 hrs from the visit. After few clearing Q&A, final detailed contract was sign in person in 48 hrs. All communication was done with the owner OVER THE WEEKEND promptly, with understanding, concern and his willingness to help. Totally impressive for business owner to do that on weekend. Best estimate , best professional work and my gratitude, thanks and best wishes to owner Mr. Ron Pelletier."

Michael K on September 2025


Select Mechanical Services, Inc.

4.74(
53
)
Approved Pro

Select Mechanical Services, Inc.

4.74(
53
)
Approved Pro
Customers say: Quick response
Recommended by 92% of Angi customers
Recommended by 92% of HomeAdvisor customers
76 local quotes requested

With over 30 years of experience in the HVAC business, we are the experts you need to take care of your home or business. We handle everything from 24/7 emergency service to full installations and change outs. We will treat your home as we would treat our own. Give Select Mechanical Service a call today, we look forward to working with you!

"Fast and reliable"

Billy B on September 2024

With over 30 years of experience in the HVAC business, we are the experts you need to take care of your home or business. We handle everything from 24/7 emergency service to full installations and change outs. We will treat your home as we would treat our own. Give Select Mechanical Service a call today, we look forward to working with you!

"Fast and reliable"

Billy B on September 2024


Avatar for Shoreline Electric Services, LLC

Shoreline Electric Services, LLC

4.31(
8
)
Approved Pro

Shoreline Electric Services, LLC

4.31(
8
)
Approved Pro
Customers say: Quick response
57 local quotes requested
2 years of experience

Shoreline Electric Services 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.

"very helpful and kind"

Tina D on April 2025

Shoreline Electric Services 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.

"very helpful and kind"

Tina D on April 2025


"work was done on time and right. The price was excellent"

Thomas M on June 2024

Onofreo Home Comfort Systems LLC, is your very best option for all your HVAC needs. We always offer the very best pricing, excellent customer service and superior workmanship on every job we do. Call us now!

"work was done on time and right. The price was excellent"

Thomas M on June 2024

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Heating and Air Conditioning questions, answered by experts

If your drain line is clogged, your AC might stop cooling, shut down, or refuse to turn on at all. Otherwise, you might see your AC leaking water, find standing water or water damage near the unit, or notice a musty smell coming out of your air conditioner or vents.

Most units are designed only to cool the house down to 20 degrees less than the temperature outside. This means that if it’s 99 degrees Fahrenheit out and you’re trying to cool your home down to 65 degrees, you’ll notice your AC is struggling. 

Lower the blinds on all your windows, turn on your ceiling fans, and keep the thermostat at a consistent temperature to help your AC do its job. Investing in an HVAC maintenance plan also helps because pros will come out to inspect and tune up your unit regularly, keeping it in optimal working condition.

Air conditioners and dehumidifiers are actually quite similar, though they perform different jobs. Dehumidifiers reduce moisture in the air, while air conditioners work to cool the home. A good central AC unit will naturally perform a certain level of dehumidification due to its design, but it will not be able to handle excessive levels of moisture.

A home AC unit provides anywhere from one-half to five tons of cooling and requires approximately two to four pounds of refrigerant per ton of cooling. At approximately five to 10 minutes to fill one pound of refrigerant, a home that requires three tons of cooling will take about six to 12 pounds of refrigerant and approximately 30 minutes to two hours to completely recharge the unit.

A window AC unit is not completely silent. You’ll hear the sound of air blowing, and if you put your ear right up next to the unit, you may hear a slight hiss or gurgle as the refrigerant flows through the system. That said, if your system is making a running water sound, a loud banging sound, a grinding sound, or physically vibrating, you may be facing an issue or malfunction with your AC unit.

The Old Saybrook, 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.
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