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TRUSTED BY OLD MYSTIC, CT HOMEOWNERS

  • Average homeowner rating star icon4.6
    Average homeowner rating
  • Verified reviews icon20
    Verified heating and air conditioning services reviews

Find Heating and air conditioning pros in Old Mystic

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
14 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(
71
)
Approved Pro

EREG PROPERTY MAINTENANCE & MANAGEMENT

5.00(
71
)
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

"They did a amazing job replacing my trailer skirting the guy ran into many obstacles with big rocks and roots while digging but never complained about it but I was a little hard to work with because I’m very picky about everything I have done but Tommy got the job done right I’m very satisfied with it I’ll be working with them again next year with some other things I want done jack the owner is very nice and very detailed"

Jeffrey C 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

"They did a amazing job replacing my trailer skirting the guy ran into many obstacles with big rocks and roots while digging but never complained about it but I was a little hard to work with because I’m very picky about everything I have done but Tommy got the job done right I’m very satisfied with it I’ll be working with them again next year with some other things I want done jack the owner is very nice and very detailed"

Jeffrey C 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
180 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


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
124 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 Diamond Plumbing & Heating, LLC

Diamond Plumbing & Heating, LLC

4.55(
58
)
Approved Pro

Diamond Plumbing & Heating, LLC

4.55(
58
)
Approved Pro
Customers say: True professional
21 local quotes requested
22 years of experience

We're a well established business with over 25 years of unmatched expertise. Customer preference and priorities are always first. We're very timely with our work and never lose attention to detail. Diamond Plumbing and Heating, LLC, has built a reputation for quality work with each satisfied customer. Our sense of pride is apparent in every restoration we complete. Call Diamond Plumbing & Heating today and we'll be there in your time of need.

"Amilcar was professional from the start to the finish. He was efficient too. He was very neat and kept the work area clean. I will certainly call on Diamond Plumbing and Heating again should I need service of the type they provide"

ANTHONY F on January 2025

We're a well established business with over 25 years of unmatched expertise. Customer preference and priorities are always first. We're very timely with our work and never lose attention to detail. Diamond Plumbing and Heating, LLC, has built a reputation for quality work with each satisfied customer. Our sense of pride is apparent in every restoration we complete. Call Diamond Plumbing & Heating today and we'll be there in your time of need.

"Amilcar was professional from the start to the finish. He was efficient too. He was very neat and kept the work area clean. I will certainly call on Diamond Plumbing and Heating again should I need service of the type they provide"

ANTHONY F on January 2025


Avatar for J&J home improvement

J&J home improvement

No reviews yet

J&J home improvement

No reviews yet
5 years of experience

Plumbing, painting, carpentry, flooring, ductwork, Heating. We are a family and veteran owned company. We take pride in everything we do big or small!! We are never completed with a job untill the customer is 100% satisfied!

Plumbing, painting, carpentry, flooring, ductwork, Heating. We are a family and veteran owned company. We take pride in everything we do big or small!! We are never completed with a job untill the customer is 100% satisfied!



Avatar for Carroll's Handy Services LLC

Carroll's Handy Services LLC

4.90(
73
)

Carroll's Handy Services LLC

4.90(
73
)
Customers say: Quick response
Recommended by 98% of Angi customers
Recommended by 98% of HomeAdvisor customers

We specialize in residential and commercial air duct cleaning & dryer vent cleaning! 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! Check out all the services we offer below and call -or- click to schedule a free estimate today!

"A first class operation!"

Cheryl H on April 2025

We specialize in residential and commercial air duct cleaning & dryer vent cleaning! 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! Check out all the services we offer below and call -or- click to schedule a free estimate today!

"A first class operation!"

Cheryl H on April 2025


Avatar for Ravin LLC

Ravin LLC

5.00(
14
)

Ravin LLC

5.00(
14
)
Customers say: Quick response
Recommended by 100% of Angi customers
Recommended by 100% of HomeAdvisor customers

Our team provides quality, accurate installations of custom decks, additions, garages, and new construction homes. We strive to deliver the highest quality workmanship at a reasonable cost. Reach out today for a free consultation.

"Ravin did a spectacular job. The workmanship is spectacular, from the footings and framing to the details of the decking itself. You can see photos of our deck on Ravin's landing page here: [*** Link removed ***] Kevin and his team were on site at 6:45 every workday and were focused and highly professional. I've done a number of building projects in the 40+ years I've lived here and Ravin is by far the finest construction company I've ever worked with. It's nice to know I never have to look for another builder. I have a hay barn in the planning stages and I'll only have it built by Ravin."

David F on October 2021

Our team provides quality, accurate installations of custom decks, additions, garages, and new construction homes. We strive to deliver the highest quality workmanship at a reasonable cost. Reach out today for a free consultation.

"Ravin did a spectacular job. The workmanship is spectacular, from the footings and framing to the details of the decking itself. You can see photos of our deck on Ravin's landing page here: [*** Link removed ***] Kevin and his team were on site at 6:45 every workday and were focused and highly professional. I've done a number of building projects in the 40+ years I've lived here and Ravin is by far the finest construction company I've ever worked with. It's nice to know I never have to look for another builder. I have a hay barn in the planning stages and I'll only have it built by Ravin."

David F on October 2021


Avatar for Dunham Plumbing and Heating

Dunham Plumbing and Heating

5.00(
18
)

Dunham Plumbing and Heating

5.00(
18
)
Customers say: Quick response
Recommended by 100% of Angi customers
Recommended by 100% of HomeAdvisor customers

Dunham Plumbing and Heating 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.

"Very dependable and did great work. Would definitely recommend Dunham Plumbing and Heating."

Dave M on April 2021

Dunham Plumbing and Heating 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.

"Very dependable and did great work. Would definitely recommend Dunham Plumbing and Heating."

Dave M on April 2021

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Heating and Air Conditioning questions, answered by experts

If you’re shopping around for a rooftop AC unit, you may hear them referred to as “package units.” That’s because rooftop AC systems are all-in-one heating and cooling units that connect directly to your home’s ductwork. If your AC repair pro references a package unit, they are referring to the system on your roof.

No, you don’t need a ductless unit in every room. Ductless AC units don't work the way that window units do, where the air doesn't travel outside that room. The indoor air handlers all attach to the outdoor condenser. While the air doesn't travel the way that traditional ductwork would, the ductless AC units create zones so that one part of the home can be cooler than another. They can spread effectively enough that indoor units only need to be placed in main living areas.

You will enjoy greater energy efficiency and save on your annual energy bills, with new, modern HVAC systems using 30% to 50% less energy than older models. Upgrading your HVAC system is also a great way to embrace new technology, such as smart thermostats, lighting, fan speed, and humidity from your phone or tablet.

You may be able to clean mold from your air conditioner in some cases. If the mold growth only takes up a small area, you can use either vinegar or bleach mixed with water to remove it. Larger areas of mold should be left to the professionals, though. It's also a good idea to leave mold removal to the pros if you are sensitive to mold or have asthma. 

This is a bit of a trick question. Even though the seasons arrive at the same time every year, the weather doesn’t always behave according to the calendar. So, while it’s fair to say that you can expect to turn on your AC starting in late May or early June, it all depends on the outside temperature and how cool you like to keep your home.

The Old Mystic, 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.