Top-rated heating and air conditioning pros.

Get matched with top heating and air conditioning pros in Hopkinton, MA

There are 27 highly-rated local heating and air conditioning pros.

TRUSTED BY HOPKINTON, MA HOMEOWNERS

  • Average homeowner rating star icon4.4
    Average homeowner rating
  • Verified reviews icon310
    Verified heating and air conditioning services reviews

Find Heating and air conditioning pros in Hopkinton

Avatar for Duct Kings

Duct Kings

4.66(
369
)
Approved Pro

Duct Kings

4.66(
369
)
Approved Pro
Customers say: Quality work
Recommended by 90% of Angi customers
Recommended by 90% of HomeAdvisor customers
1999 years of experience

We are experts in air duct & dryer vent cleaning for homeowners & businesses. We also insulate & repair ductwork, offer video inspection, sanitizing, air leak testing & duct leak sealing using Aeroseal, a patented technology created by the US Department of Energy to decrease energy bills that result from leaky airducts.

"I have been using duct kings to clean my dryer vent for several years. They always arrive on time and thoroughly clean out the dryer vent. I used them again this year and they provided the same great service! It was great to have the same technician who was familiar with my home to provide the service several years in a row."

Homeowner on November 2025

We are experts in air duct & dryer vent cleaning for homeowners & businesses. We also insulate & repair ductwork, offer video inspection, sanitizing, air leak testing & duct leak sealing using Aeroseal, a patented technology created by the US Department of Energy to decrease energy bills that result from leaky airducts.

"I have been using duct kings to clean my dryer vent for several years. They always arrive on time and thoroughly clean out the dryer vent. I used them again this year and they provided the same great service! It was great to have the same technician who was familiar with my home to provide the service several years in a row."

Homeowner on November 2025


Avatar for NETR Inc

NETR Inc

4.79(
76
)
Approved Pro

NETR Inc

4.79(
76
)
Approved Pro
Customers say: Super punctual
Recommended by 93% of Angi customers
Recommended by 93% of HomeAdvisor customers
1989 years of experience

For emergency services, please call 781-933-6387. N.E.T.R., Inc. is here to help homeowners install the best heating and cooling systems that fits their needs. Since 1989, we’ve installed heating and cooling systems in Boston and its surrounding areas, tackling tough problems that our clients face. Our goal is to ensure our clients have energy efficient, quiet, reliable systems so they can live their lives to the fullest both at home and at work. Our dedication to our customers’ needs is what drives us each and every day. Our approach to temperature control and comfort has helped us become one of the most respected names in heating, cooling, and refrigeration in New England

"Before installing a mini-split, the sales person told me that I'd need to cut down an interior shelf to a specific height. I paid a handyman $400 to do exactly what the sales person instructed. Later on, N.E.T.R. came and did the installation; however, AFTER the installation, a technician told me that they hadn't accounted for the vent opening and closing and that the shelf would need to be further cut down. As you can imagine, this type of service is rather ridiculous. If they knew that the shelf would need further cutting, they should have NOT installed the unit. I have called N.E.T.R. six (6) times in three weeks, and no one has called me back about this issue. After paying for the unit and for a handyman, it's ridiculous that I have AC that is compromised because no one with the company thought to properly measure the space so that the work by the handyman could be done once. At this point, I'd like for N.E.T.R. to take care of this for me."

Linda O on June 2025

For emergency services, please call 781-933-6387. N.E.T.R., Inc. is here to help homeowners install the best heating and cooling systems that fits their needs. Since 1989, we’ve installed heating and cooling systems in Boston and its surrounding areas, tackling tough problems that our clients face. Our goal is to ensure our clients have energy efficient, quiet, reliable systems so they can live their lives to the fullest both at home and at work. Our dedication to our customers’ needs is what drives us each and every day. Our approach to temperature control and comfort has helped us become one of the most respected names in heating, cooling, and refrigeration in New England

"Before installing a mini-split, the sales person told me that I'd need to cut down an interior shelf to a specific height. I paid a handyman $400 to do exactly what the sales person instructed. Later on, N.E.T.R. came and did the installation; however, AFTER the installation, a technician told me that they hadn't accounted for the vent opening and closing and that the shelf would need to be further cut down. As you can imagine, this type of service is rather ridiculous. If they knew that the shelf would need further cutting, they should have NOT installed the unit. I have called N.E.T.R. six (6) times in three weeks, and no one has called me back about this issue. After paying for the unit and for a handyman, it's ridiculous that I have AC that is compromised because no one with the company thought to properly measure the space so that the work by the handyman could be done once. At this point, I'd like for N.E.T.R. to take care of this for me."

Linda O on June 2025


Avatar for Cotti-Johnson Heating-Cooling-Electrical

Cotti-Johnson Heating-Cooling-Electrical

4.68(
155
)
Approved Pro

Cotti-Johnson Heating-Cooling-Electrical

4.68(
155
)
Approved Pro
Customers say: Super punctual
Recommended by 90% of Angi customers
Recommended by 90% of HomeAdvisor customers
1948 years of experience

Experiencing issues with your heating, air conditioning, plumbing, or electrical systems? Cotti-Johnson is your reliable one-stop shop for all home comfort needs. From simple fixes to large-scale projects, our professional team handles everything with honesty and expertise. We offer 24/7 emergency services and specialized design services for landscape and indoor lighting. Trust us for top-notch, efficient, and transparent service. Visit our website at callcotti.com or call us at (833) 826-8844 to see how we can improve your home's comfort and efficiency.

"Happy with the work, and the customer service. Will definitely call on them for future work."

Fran P on June 2025

Experiencing issues with your heating, air conditioning, plumbing, or electrical systems? Cotti-Johnson is your reliable one-stop shop for all home comfort needs. From simple fixes to large-scale projects, our professional team handles everything with honesty and expertise. We offer 24/7 emergency services and specialized design services for landscape and indoor lighting. Trust us for top-notch, efficient, and transparent service. Visit our website at callcotti.com or call us at (833) 826-8844 to see how we can improve your home's comfort and efficiency.

"Happy with the work, and the customer service. Will definitely call on them for future work."

Fran P on June 2025


Massachusetts licensed general contractor, specialized in additions and full home renovations . Additional email - [email protected].


Avatar for Gervais Plumbing & Heating Inc

Gervais Plumbing & Heating Inc

3.71(
7
)
Approved Pro

Gervais Plumbing & Heating Inc

3.71(
7
)
Approved Pro
Customers say: Quick response

18 Years in Business Gervais Mechanical Service LLC is a fully licensed, local, family-run business. With more than 100 years of combined experience, we strive to bring our customers exceptional repair and installation services they can rely on. We offer turnkey solutions for both residential and commercial customers — no job is too large or complex for our expert team.

"Absolute ripoff, along with shady business practices. They were prompt and courteous, but that's about it. The technician came and had to replace a $200 part on my boiler, it took him under an hour to do the work. A simple Google search showed at least 10 places to buy the exact part, all around $200. No other parts were needed for this repair, I researched what is involved. I was charged almost $1000, including their $89 diagnostic fee just to walk in the door. So apparently it's a $600+/hour labor rate? I'm obviously in the wrong line of work. This was not an off hours emergency call either, it was a scheduled appointment in the middle of a weekday. The shadiest part of the entire thing was that on the invoice (that they email you later) they bury all the cost, it's not itemized i.e. labor vs parts cost. It just says replaced (part) = $1000. A super scummy and shady way to run a "professional" business, taking advantage of people who don't know any better. I wouldn't be surprised if they also sell used cars. Never again Gervais. You've all been warned."

Jeffrey J on January 2025

18 Years in Business Gervais Mechanical Service LLC is a fully licensed, local, family-run business. With more than 100 years of combined experience, we strive to bring our customers exceptional repair and installation services they can rely on. We offer turnkey solutions for both residential and commercial customers — no job is too large or complex for our expert team.

"Absolute ripoff, along with shady business practices. They were prompt and courteous, but that's about it. The technician came and had to replace a $200 part on my boiler, it took him under an hour to do the work. A simple Google search showed at least 10 places to buy the exact part, all around $200. No other parts were needed for this repair, I researched what is involved. I was charged almost $1000, including their $89 diagnostic fee just to walk in the door. So apparently it's a $600+/hour labor rate? I'm obviously in the wrong line of work. This was not an off hours emergency call either, it was a scheduled appointment in the middle of a weekday. The shadiest part of the entire thing was that on the invoice (that they email you later) they bury all the cost, it's not itemized i.e. labor vs parts cost. It just says replaced (part) = $1000. A super scummy and shady way to run a "professional" business, taking advantage of people who don't know any better. I wouldn't be surprised if they also sell used cars. Never again Gervais. You've all been warned."

Jeffrey J on January 2025


Avatar for GreenHow Inc

GreenHow Inc

4.95(
109
)

GreenHow Inc

4.95(
109
)
Customers say: True professional
Recommended by 99% of Angi customers
Recommended by 99% of HomeAdvisor customers

Additional service areas - Norwood Brockton, Lynn Beverly, Concord Maynard, & Chelmsford Haverhill & portions of Ashland Norfolk, Boxford Gloucester, Cohasset Plymouth & Fitchburg Leominster. Award winning. Additional contact name - Lauren Greenhow.

"GreenHow is an excellent company - their servicepeople are knowledgable and thorough, follow up when they say they will, and go out of their way to make sure you are happy with their work. The back office team is also very attentive and professional. We had our property inspected when we moved in and were pleased enough with GreenHow's work that we contracted them to perform ongoing inspections every couple months. They have been great and we are quite happy!"

Douglas S on September 2020

Additional service areas - Norwood Brockton, Lynn Beverly, Concord Maynard, & Chelmsford Haverhill & portions of Ashland Norfolk, Boxford Gloucester, Cohasset Plymouth & Fitchburg Leominster. Award winning. Additional contact name - Lauren Greenhow.

"GreenHow is an excellent company - their servicepeople are knowledgable and thorough, follow up when they say they will, and go out of their way to make sure you are happy with their work. The back office team is also very attentive and professional. We had our property inspected when we moved in and were pleased enough with GreenHow's work that we contracted them to perform ongoing inspections every couple months. They have been great and we are quite happy!"

Douglas S on September 2020


Beth Finlayson Licensed Electrician

4.95(
117
)

Beth Finlayson Licensed Electrician

4.95(
117
)
Customers say: True professional
Recommended by 97% of Angi customers
Recommended by 97% of HomeAdvisor customers

My name is Beth Finlayson and I am the owner of this electrical business. I run a small business out of Woburn MA and have been in the trade for over a decade now. My company always strives to be prompt, professional, and yet still maintain reasonable rates.

"Beth did a great job installing new motion sensor lights on my property. Her customer service and communication was excellent. We arranged the entire job via text and email. She was very responsive to my questions and gave great advise. I will hire her again the next time I need a licensed electrician."

Dan F on January 2021

My name is Beth Finlayson and I am the owner of this electrical business. I run a small business out of Woburn MA and have been in the trade for over a decade now. My company always strives to be prompt, professional, and yet still maintain reasonable rates.

"Beth did a great job installing new motion sensor lights on my property. Her customer service and communication was excellent. We arranged the entire job via text and email. She was very responsive to my questions and gave great advise. I will hire her again the next time I need a licensed electrician."

Dan F on January 2021


Roscia's Plumbing & Heating Inc

4.94(
144
)

Roscia's Plumbing & Heating Inc

4.94(
144
)
Customers say: Quality work
Recommended by 97% of Angi customers
Recommended by 97% of HomeAdvisor customers

Roscia’s Plumbing and Heating, Inc was established in 1972 by Patrick Roscia, who was born and raised in Dedham, MA. Pat learned the plumbing trade from his father, Anthony, who worked for him for 2 years. Pat received his Masters in Plumbing in 1976 and began working for a handful of local Dedham residents. Over the past 39 years, Pat has continued to service the Dedham area and his client base has expanded greatly thanks to mostly word of mouth. Pat is proud of his long time crew who includes Artie (32 years), Tom (27 years), Frank (27 years), son-in-law Dennis (master plumber, 9 years), Vinny (15 years), Joe (7), and Pat’s youngest daughter Jill (5 years) works as the office manager. Extra charge for after hours service. Same day water heater replacements. $15.00 discount on any water heater replacement. Award winning.

"They did excellent work. Ever since we hired them, we hire them now regularly."

Annette E on September 2020

Roscia’s Plumbing and Heating, Inc was established in 1972 by Patrick Roscia, who was born and raised in Dedham, MA. Pat learned the plumbing trade from his father, Anthony, who worked for him for 2 years. Pat received his Masters in Plumbing in 1976 and began working for a handful of local Dedham residents. Over the past 39 years, Pat has continued to service the Dedham area and his client base has expanded greatly thanks to mostly word of mouth. Pat is proud of his long time crew who includes Artie (32 years), Tom (27 years), Frank (27 years), son-in-law Dennis (master plumber, 9 years), Vinny (15 years), Joe (7), and Pat’s youngest daughter Jill (5 years) works as the office manager. Extra charge for after hours service. Same day water heater replacements. $15.00 discount on any water heater replacement. Award winning.

"They did excellent work. Ever since we hired them, we hire them now regularly."

Annette E on September 2020


Avatar for Gibbons Electric

Gibbons Electric

4.87(
338
)

Gibbons Electric

4.87(
338
)
Customers say: Super punctual
Recommended by 97% of Angi customers
Recommended by 97% of HomeAdvisor customers

Since 1980 Gibbons Electric has been providing outstanding service to customers like you. Our well-trained and experienced management staff is committed to answering your calls quickly, evaluating your needs, scheduling "on time" appointments and overseeing your project from start to finish. Our technicians electrical experience, professional appearance and positive attitude allow us to consistently exceed our customers expectations. We have a passion for what we do. In a fast paced world of "come and go" contractors it is our hope that you will allow us to provide the service that you expect to receive from a contractor, not hope for. Let us give your property the respect it deserves!

"It went very well. They were courteous and professional. They did an excellent job."

Sally B on August 2020

Since 1980 Gibbons Electric has been providing outstanding service to customers like you. Our well-trained and experienced management staff is committed to answering your calls quickly, evaluating your needs, scheduling "on time" appointments and overseeing your project from start to finish. Our technicians electrical experience, professional appearance and positive attitude allow us to consistently exceed our customers expectations. We have a passion for what we do. In a fast paced world of "come and go" contractors it is our hope that you will allow us to provide the service that you expect to receive from a contractor, not hope for. Let us give your property the respect it deserves!

"It went very well. They were courteous and professional. They did an excellent job."

Sally B on August 2020


Avatar for Lowe’s Air Duct Cleaning

Lowe’s Air Duct Cleaning

4.82(
384
)

Lowe’s Air Duct Cleaning

4.82(
384
)
Customers say: Super punctual
Recommended by 94% of Angi customers
Recommended by 94% of HomeAdvisor customers

Lowe's Air Duct Cleaning is an honest and reputable company, specializing in air duct cleaning business. We always stand behind the jobs we do and guarantee the best quality results for each project. Additional phone numbers - (800) 699-0955, (781) 205-2474 & (978) 965-3474.

"After Lowe's came to clean the dyer vents at my condo building, my dryer was no longer venting. I contacted them and initially they said they would send someone to check the vent. They then called back and said my vent was never clean because it was disconnected and they could not help me. This was strange because the dryer was working fine before they came. Also, in my trash there was foil tape that you would wrap around the vent. This made me think that they did try to clean the vent despite saying they did nothing. I contacted my management company who said there were never any previous issues with my vent. I called Lowe's back and told them this and they still insisted that they never touched it but would check with the technician. I looked into it my self and found that in the section of the vent between the dryer and the ceiling there was a mass of lint the size of a small animal (see the picture). It was so large that moisture from the dryer had also built up and flooded the bottom of the vent hose. The building manager was then able to clear another mass of lint from the section of the vent in the ceiling and the dryer then started venting to the outside. It was never disconnected like Lowe's said. It seems they started cleaning it and just jammed the dust all the way back to the dryer. Why they didn't finish removing it is a mystery. If they ever service my building again, I will refuse."

Kevin C on June 2023

Lowe's Air Duct Cleaning is an honest and reputable company, specializing in air duct cleaning business. We always stand behind the jobs we do and guarantee the best quality results for each project. Additional phone numbers - (800) 699-0955, (781) 205-2474 & (978) 965-3474.

"After Lowe's came to clean the dyer vents at my condo building, my dryer was no longer venting. I contacted them and initially they said they would send someone to check the vent. They then called back and said my vent was never clean because it was disconnected and they could not help me. This was strange because the dryer was working fine before they came. Also, in my trash there was foil tape that you would wrap around the vent. This made me think that they did try to clean the vent despite saying they did nothing. I contacted my management company who said there were never any previous issues with my vent. I called Lowe's back and told them this and they still insisted that they never touched it but would check with the technician. I looked into it my self and found that in the section of the vent between the dryer and the ceiling there was a mass of lint the size of a small animal (see the picture). It was so large that moisture from the dryer had also built up and flooded the bottom of the vent hose. The building manager was then able to clear another mass of lint from the section of the vent in the ceiling and the dryer then started venting to the outside. It was never disconnected like Lowe's said. It seems they started cleaning it and just jammed the dust all the way back to the dryer. Why they didn't finish removing it is a mystery. If they ever service my building again, I will refuse."

Kevin C on June 2023

...
Showing 1-10 of 1369
Heating and Air Conditioning questions, answered by experts

The top reason to purchase an HVAC maintenance contract is the fact that it ensures you are detecting problems before they turn into expensive fixes. Secondly, this type of contract provides priority service, which is nice if it’s peak busy season. Finally, an HVAC maintenance contract provides discounts on parts and labor for repairs, which can save you a good amount of money if your unit breaks.

Your air conditioner can temporarily run with a dirty filter, but it won’t work as efficiently. It will need to work harder to blow cool air throughout the room or house, and this can eventually cause the air conditioner to overheat or die prematurely. It’s much more cost-effective to clean or replace filters than to pay higher utility bills each month and replace the entire AC unit more often.

If you know how to identify supply and return ducts, you’ll find that only the supply ducts will have dampers. Although your return ducts can have dampers, it’s not common. If you have one return duct that is pulling in too much air, adding a damper to it can help with overall system performance. However, dampers on return ducts are not a necessary addition for most homes.

To keep your AC unit in good working condition, you should service your AC unit at least once per year. Your HVAC pro will inspect, clean, and replace parts as necessary. A great DIY option is to clean the evaporator coils every year, preferably before the summer months. Regular maintenance helps avoid costly repairs down the road.

The best way to save money on HVAC repairs is by regularly having your system inspected and maintained. This can prevent bigger problems and costly repairs and replacements in the future. It’s also smart to buy quality equipment and hire companies that provide warranties on equipment and labor. If you need repairs, you may be able to save money by cashing in on rebates and incentives or keeping the area around your HVAC unit clear to shorten the time your contractor needs to spend in your home.

The Hopkinton, MA 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"