
Get matched with top subcontractors in Haddam, CT
There are 12 highly-rated local subcontractors.
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Verified Reviews for Subcontracting pros in Haddam, CT
*The Angi rating for Subcontracting companies in Haddam, CT is a rating based on verified reviews from our community of homeowners who have used these pros to meet their Subcontracting needs.
*The HomeAdvisor rating for Subcontracting companies in Haddam, CT is a rating based on verified reviews from our community of homeowners who have used these pros to meet their Subcontracting needs.
Last update on October 17, 2025
Find Subcontractors in Haddam

Cawiamca Heating, Cooling, and Electrical
Cawiamca Heating, Cooling, and Electrical
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

Wave Sound and Security, LLC
Wave Sound and Security, LLC
Wave Sound and Security, LLC is a fully licensed and insured low voltage installation company. We specialize in residential and small businesses installations of Surveillance Systems, Home Control Systems, Home Theater systems, Multi room audio and more.
"I highly recommend Wave Sound and Security LLC. Wes expertly installed and thoroughly explained my new system, answered my many questions, discussed other needs I may have in the future, and is completely professional. I will definitely be using Wave Sound and Security for any future plans."
Ainslie W on August 2023
Wave Sound and Security, LLC is a fully licensed and insured low voltage installation company. We specialize in residential and small businesses installations of Surveillance Systems, Home Control Systems, Home Theater systems, Multi room audio and more.
"I highly recommend Wave Sound and Security LLC. Wes expertly installed and thoroughly explained my new system, answered my many questions, discussed other needs I may have in the future, and is completely professional. I will definitely be using Wave Sound and Security for any future plans."
Ainslie W on August 2023

HARP Home Services LLC
HARP Home Services LLC
We joined Angie's List in August of 2007 and have earned their Super Service Award every year since 2009 when they started that program. HARP Home Services, LLC is here to take care of all your heating and air conditioning needs. Whether you are looking for a free quote on a new central air conditioning system or are ready to install radiant floor heating or a new boiler for those chilly winter months, we're just a phone call (or e-mail) away. Residential & Commercial.
"We had a furnace installed by Harp on July 8th 2024 after it being diagnosed by their technician as to the reason our ac system was not functioning properly. That’s when our troubles with Harp began. The installation was not done properly, we needed 3 service calls to get the ac to work properly. The installers were sloppy. We cleaned up screws and wire and parts from the old furnace for weeks. When heating season began we noticed that the humidifier installed with the furnace was not operating. We scheduled an appointment to have it repaired and they called the day of the appointment and told us they couldn’t come that day and we had to reschedule, so reluctantly we did. They finally came and repaired it. From what the technician told me it was not wired properly. On January 21st 2025( the coldest night of the year) the furnace stopped working. We called Harp to get someone to come to repair it as we had no heat in below 0º weather I was told the best they could do is to come the next day between 2 and 6 pm. I tried to explain that this was an emergency but to no avail. I called my local oil company and they were at my door within 30 minutes( which I would’ve expected from the company who sold us the furnace) the repaired it quickly and told us that one f the wires on the control panel was not attached properly. It cost me $300. I would NOT recommend Harp to anyone. They are not reliable and do not stand behind their promises of service 24/7. Stay as far away from this company as possible. We are sorry we ever started with them."
John J on January 2025
We joined Angie's List in August of 2007 and have earned their Super Service Award every year since 2009 when they started that program. HARP Home Services, LLC is here to take care of all your heating and air conditioning needs. Whether you are looking for a free quote on a new central air conditioning system or are ready to install radiant floor heating or a new boiler for those chilly winter months, we're just a phone call (or e-mail) away. Residential & Commercial.
"We had a furnace installed by Harp on July 8th 2024 after it being diagnosed by their technician as to the reason our ac system was not functioning properly. That’s when our troubles with Harp began. The installation was not done properly, we needed 3 service calls to get the ac to work properly. The installers were sloppy. We cleaned up screws and wire and parts from the old furnace for weeks. When heating season began we noticed that the humidifier installed with the furnace was not operating. We scheduled an appointment to have it repaired and they called the day of the appointment and told us they couldn’t come that day and we had to reschedule, so reluctantly we did. They finally came and repaired it. From what the technician told me it was not wired properly. On January 21st 2025( the coldest night of the year) the furnace stopped working. We called Harp to get someone to come to repair it as we had no heat in below 0º weather I was told the best they could do is to come the next day between 2 and 6 pm. I tried to explain that this was an emergency but to no avail. I called my local oil company and they were at my door within 30 minutes( which I would’ve expected from the company who sold us the furnace) the repaired it quickly and told us that one f the wires on the control panel was not attached properly. It cost me $300. I would NOT recommend Harp to anyone. They are not reliable and do not stand behind their promises of service 24/7. Stay as far away from this company as possible. We are sorry we ever started with them."
John J on January 2025

Plow and Property Projects LLC
Plow and Property Projects LLC
Give us a call or click to request a quote today! Plow and Property Projects LLC is your go-to remodeling expert in Hartford. With our exceptional craftsmanship and attention to detail, we transform homes into stunning spaces. Contact us today for all your remodeling needs.
"Absolutely amazing. They were done in a week and turned my unfinished basement into a fully livable space!"
Katheryn C on July 2025
Give us a call or click to request a quote today! Plow and Property Projects LLC is your go-to remodeling expert in Hartford. With our exceptional craftsmanship and attention to detail, we transform homes into stunning spaces. Contact us today for all your remodeling needs.
"Absolutely amazing. They were done in a week and turned my unfinished basement into a fully livable space!"
Katheryn C on July 2025

Rdo Construction LLC
Rdo Construction LLC
RDO Construction LLC is a premier general contracting company dedicated to delivering high-quality construction services across residential and commercial sectors. With a commitment to excellence, our team of skilled professionals combines expertise, innovation, and integrity to build structures that meet our clients' needs and stand the test of time.
"This company is fabulous. Renald and his workers gave a great estimate, and did the job flawlessly designing and executing the building of my exquisite patio. He met us at the supply house to help us pick out materials, he took a personal interest. Beside our beautiful patio, I had him redo our fireplace which looks like a work of art! And since the chimney needed some attention, they fixed some problems with the chimney. All work was beautifully done. I recommended this company to friends of mine, and they hired Renald and his crew and got back to me as to how terrific they found his work and the ease it was to work with them. This is how things should be....attention to detail, quality craftsmanship! I'm happy I could submit this review!"
Matt V on March 2025
RDO Construction LLC is a premier general contracting company dedicated to delivering high-quality construction services across residential and commercial sectors. With a commitment to excellence, our team of skilled professionals combines expertise, innovation, and integrity to build structures that meet our clients' needs and stand the test of time.
"This company is fabulous. Renald and his workers gave a great estimate, and did the job flawlessly designing and executing the building of my exquisite patio. He met us at the supply house to help us pick out materials, he took a personal interest. Beside our beautiful patio, I had him redo our fireplace which looks like a work of art! And since the chimney needed some attention, they fixed some problems with the chimney. All work was beautifully done. I recommended this company to friends of mine, and they hired Renald and his crew and got back to me as to how terrific they found his work and the ease it was to work with them. This is how things should be....attention to detail, quality craftsmanship! I'm happy I could submit this review!"
Matt V on March 2025

East Coast Mechanical Inc
East Coast Mechanical Inc
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

MULL BROTHERS INC
MULL BROTHERS INC
My name is Tom Mull of Mull Bros. Oil, a family-owned heating and cooling company in Wethersfield, Connecticut, where I was born and raised. There’s no doubt that you have seen many changes with the heating oil industry in the past decade or so. While many companies have given up or, out of desperation, have changed their business philosophies, we intend to be here for a long time. As a matter of fact, we’ve been around for over 60 years. My father, Bill Mull, started this company in 1945. At a time when stove-oil was in great demand and #2 fuel was being introduced as a home-heating fuel, Bill decided to get in to the delivery business. In the early 1950’s many oil burners were being installed on coal furnaces. Being mechanically inclined, Bill learned the art of installing and servicing the many styles of oil burners and heating systems.
"After interviewing several companies and getting quotes, we were most convinced of the combination of quality and value offered by Mull Brothers. After working with them, we saw that our decision was the right one. They performed all the work very well and in the time frames they had estimated and stayed available for any questions we had after the job was completed. We are very happy with the results and happy that we hired them."
Richard B on April 2022
My name is Tom Mull of Mull Bros. Oil, a family-owned heating and cooling company in Wethersfield, Connecticut, where I was born and raised. There’s no doubt that you have seen many changes with the heating oil industry in the past decade or so. While many companies have given up or, out of desperation, have changed their business philosophies, we intend to be here for a long time. As a matter of fact, we’ve been around for over 60 years. My father, Bill Mull, started this company in 1945. At a time when stove-oil was in great demand and #2 fuel was being introduced as a home-heating fuel, Bill decided to get in to the delivery business. In the early 1950’s many oil burners were being installed on coal furnaces. Being mechanically inclined, Bill learned the art of installing and servicing the many styles of oil burners and heating systems.
"After interviewing several companies and getting quotes, we were most convinced of the combination of quality and value offered by Mull Brothers. After working with them, we saw that our decision was the right one. They performed all the work very well and in the time frames they had estimated and stayed available for any questions we had after the job was completed. We are very happy with the results and happy that we hired them."
Richard B on April 2022
ARMAC Electric
ARMAC Electric
ARMAC Electric provides both commercial and residential electrical services. Family owned business started in 1988.
"If I could give 10 stars! Nick was fantastic. I received a call with in minutes of making a request on Angie's list. He was able to accommodate the short notice due to needing a receptical put in for a new gas stove and a refrigerator. He was professional and efficient. Nick was able to figure a way to get the wires run in my 150 year old house without having to rip apart everything. I am so incredibly happy and will definitely hire him for my future projects."
Heather M on September 2025
ARMAC Electric provides both commercial and residential electrical services. Family owned business started in 1988.
"If I could give 10 stars! Nick was fantastic. I received a call with in minutes of making a request on Angie's list. He was able to accommodate the short notice due to needing a receptical put in for a new gas stove and a refrigerator. He was professional and efficient. Nick was able to figure a way to get the wires run in my 150 year old house without having to rip apart everything. I am so incredibly happy and will definitely hire him for my future projects."
Heather M on September 2025

Omni Mechanical Services, LLC
Omni Mechanical Services, LLC
We have over 20 years of experience in the HVAC industry. Here at Omni Mechanical Services, LLC, we pride ourselves 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 throughout your particular task or project. Let us take care of all your home's HVAC needs, and find out for yourself why we have 4.75 stars on homeadvisor.com! Call us today at (860) 422-4314!
"Juan responded quickly on a Sunday afternoon. He was very knowledgeable and fixed the broken part. Fortunately, Juan had the part in his truck and was able to get my furnace working again. The service was impeccable! However, the weekend rates are expensive the service cost me $699 for installation of a $70 part. The 2-hour service call was $500 ($249 per hour)."
Darlene B on February 2021
We have over 20 years of experience in the HVAC industry. Here at Omni Mechanical Services, LLC, we pride ourselves 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 throughout your particular task or project. Let us take care of all your home's HVAC needs, and find out for yourself why we have 4.75 stars on homeadvisor.com! Call us today at (860) 422-4314!
"Juan responded quickly on a Sunday afternoon. He was very knowledgeable and fixed the broken part. Fortunately, Juan had the part in his truck and was able to get my furnace working again. The service was impeccable! However, the weekend rates are expensive the service cost me $699 for installation of a $70 part. The 2-hour service call was $500 ($249 per hour)."
Darlene B on February 2021
Borselle Plumbing & Heating LLC
Borselle Plumbing & Heating LLC
Professional for over 30 years in the same area! Fully equipped for service, diversified plumbing, heating, kitchen and bath remodeling.
"Joe and Larry were wonderful! We bought a new house that needed work, including a serious issue with how our water heater was installed (without a pressure release valve!). Joe came by and looked at it all and because the situation was dangerous he and Larry came the very next day. Their estimate was clear and the job came in at the estimate (with one small additional nal.repair they found taking a part the toilet.). They walked me through everything and made me feel at ease. These are our new go-to plumbers!!"
Ali B on July 2021
Professional for over 30 years in the same area! Fully equipped for service, diversified plumbing, heating, kitchen and bath remodeling.
"Joe and Larry were wonderful! We bought a new house that needed work, including a serious issue with how our water heater was installed (without a pressure release valve!). Joe came by and looked at it all and because the situation was dangerous he and Larry came the very next day. Their estimate was clear and the job came in at the estimate (with one small additional nal.repair they found taking a part the toilet.). They walked me through everything and made me feel at ease. These are our new go-to plumbers!!"
Ali B on July 2021
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