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Find Solar panel installers in Watertown

Avatar for Green Sun Energy LLC

Green Sun Energy LLC

4.89(
9
)
•Approved Pro

Green Sun Energy LLC

4.89(
9
)
•Approved Pro
Super Service Award
Customers say: Quick response
Recommended by 100% of Angi customers
Recommended by 100% of HomeAdvisor customers
16 local quotes requested

We are a solar company operating in New Hampshire, Massachusetts, Vermont, and Maine. We are company that formed in 2022, but have been in the solar industry installing and servicing systems since 2008. We are here to fill the need in servicing solar systems that no longer have solar servicing providers along with providing new customers with new installs. We are a solar company you can trust with an unmatched knowledge in newer and older solar systems. We operate in residential and commercial.

"Green Sun Energy did a fantastic job cleaning my solar panels. They were prompt, courteous, and professional. I highly recommend them!"

Bruce H on July 2025

We are a solar company operating in New Hampshire, Massachusetts, Vermont, and Maine. We are company that formed in 2022, but have been in the solar industry installing and servicing systems since 2008. We are here to fill the need in servicing solar systems that no longer have solar servicing providers along with providing new customers with new installs. We are a solar company you can trust with an unmatched knowledge in newer and older solar systems. We operate in residential and commercial.

"Green Sun Energy did a fantastic job cleaning my solar panels. They were prompt, courteous, and professional. I highly recommend them!"

Bruce H on July 2025

Avatar for ReVision Energy

ReVision Energy

4.91(
130
)
•Approved Pro

ReVision Energy

4.91(
130
)
•Approved Pro
Customers say: Quality work
Recommended by 96% of Angi customers
Recommended by 96% of HomeAdvisor customers
30 local quotes requested

A ReVision Energy Company. Since 2009, Sunbug has provided best-in-class renewable energy solutions to a wide range of residential, commercial, and nonprofit customers, as well as expertise in solar for new construction and EPC services. Our helpful, responsive team brings deep expertise, experience, and a customer-first approach to every project. Each of us embraces a method and a mindset that’s equal parts craftsmanship, collaboration, and accountability. As a values-driven B-Corp with employee-owners, and a longtime member of the Amicus Solar Cooperative, we believe in doing the right thing, the right way, every day. Our relationships with clients, partners, and one another are guided by honesty, respect, and integrity, and we are known for standing by our work and by our word.

"They know their stuff! Derek was knowledgable and professional designing the system, and Thien, Ken, Mishael, and Anthony got the work done sharply while Rachel kept on top of coordinating everything. They dealt with our questions responsively and even came back when something didn't look quite right. Definitely a higher cost than we might have gotten elsewhere, but hopefully that was worth it!"

Matt G on October 2023

A ReVision Energy Company. Since 2009, Sunbug has provided best-in-class renewable energy solutions to a wide range of residential, commercial, and nonprofit customers, as well as expertise in solar for new construction and EPC services. Our helpful, responsive team brings deep expertise, experience, and a customer-first approach to every project. Each of us embraces a method and a mindset that’s equal parts craftsmanship, collaboration, and accountability. As a values-driven B-Corp with employee-owners, and a longtime member of the Amicus Solar Cooperative, we believe in doing the right thing, the right way, every day. Our relationships with clients, partners, and one another are guided by honesty, respect, and integrity, and we are known for standing by our work and by our word.

"They know their stuff! Derek was knowledgable and professional designing the system, and Thien, Ken, Mishael, and Anthony got the work done sharply while Rachel kept on top of coordinating everything. They dealt with our questions responsively and even came back when something didn't look quite right. Definitely a higher cost than we might have gotten elsewhere, but hopefully that was worth it!"

Matt G on October 2023

Avatar for Sila Heating, Cooling, Plumbing and Electrical

Sila Heating, Cooling, Plumbing and Electrical

4.54(
5,210
)
•Approved Pro

Sila Heating, Cooling, Plumbing and Electrical

4.54(
5,210
)
•Approved Pro
Customers say: Super punctual
5743 local quotes requested
36 years of experience

Live Your Most Comfortable Life with a Company You Trust. We offer Same Day Service and Next Day Installation! Sila has been the center of delighting homeowners since 1989, with our team of engineers, certified technicians, and system designers that are proud to deliver the highest level of expertise in the HVAC industry. Whether it’s a repair, replacement, installation, or service, we have an unwavering commitment to keeping you and your family comfortable and safe — season after season. We guarantee satisfaction and are proud to have earned over 7,000 “A” ratings on Angie’s List and its prestigious Super Service Award!

"Great, as always. Sila is outstanding. We have a service contract with them for our furnace and AC and they keep them in tip-top shape. And when we have an urgent or emergency situation (heating, cooling, plumbing, electrical), they're who we call."

Jonathan P on November 2025

Live Your Most Comfortable Life with a Company You Trust. We offer Same Day Service and Next Day Installation! Sila has been the center of delighting homeowners since 1989, with our team of engineers, certified technicians, and system designers that are proud to deliver the highest level of expertise in the HVAC industry. Whether it’s a repair, replacement, installation, or service, we have an unwavering commitment to keeping you and your family comfortable and safe — season after season. We guarantee satisfaction and are proud to have earned over 7,000 “A” ratings on Angie’s List and its prestigious Super Service Award!

"Great, as always. Sila is outstanding. We have a service contract with them for our furnace and AC and they keep them in tip-top shape. And when we have an urgent or emergency situation (heating, cooling, plumbing, electrical), they're who we call."

Jonathan P on November 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
2992 local quotes requested

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

Avatar for Petro Home Services

Petro Home Services

4.12(
146
)

Petro Home Services

4.12(
146
)
Customers say: Super punctual
122 years of experience

We're America’s #1 local home heating oil and total home comfort services provider (heating, cooling, plumbing, & chimney). With over 100 years experience, we know how to keep you comfortable, safe and help you save on energy costs. Our local 24/7 customer service and support means automatic heating oil deliveries and our service response is always fast. We never run out of heating oil plus our pricing and payment plans are designed to help you manage your costs all year round. Experience the Petro difference today!

"Our heater stopped functioning on Nov 27, 2023 and we called Petro who had done the maintenance on it before and replaced a motor two years ago. They were responsive and a technician came two days later. He worked for 3 hours without explaining what the problem was. Then said he needed to replace the motor. He fixed the problem and left without much explanation. Two days later a bill of $2500 came via email. No explanation, no break-down. I called 4 times over the last 20 days, spoke to 4 different reps and was promised that a supervisor will contact me with the bill details. Nothing happened. Irresponsible customer service and unprofessional behavior. They show all the symptoms of big, bureaucratic, and indifferent service company. I would not recommend Petro if you have options of more personalized services."

Nasser R on December 2023

We're America’s #1 local home heating oil and total home comfort services provider (heating, cooling, plumbing, & chimney). With over 100 years experience, we know how to keep you comfortable, safe and help you save on energy costs. Our local 24/7 customer service and support means automatic heating oil deliveries and our service response is always fast. We never run out of heating oil plus our pricing and payment plans are designed to help you manage your costs all year round. Experience the Petro difference today!

"Our heater stopped functioning on Nov 27, 2023 and we called Petro who had done the maintenance on it before and replaced a motor two years ago. They were responsive and a technician came two days later. He worked for 3 hours without explaining what the problem was. Then said he needed to replace the motor. He fixed the problem and left without much explanation. Two days later a bill of $2500 came via email. No explanation, no break-down. I called 4 times over the last 20 days, spoke to 4 different reps and was promised that a supervisor will contact me with the bill details. Nothing happened. Irresponsible customer service and unprofessional behavior. They show all the symptoms of big, bureaucratic, and indifferent service company. I would not recommend Petro if you have options of more personalized services."

Nasser R on December 2023

Avatar for Total Temperature Control

Total Temperature Control

4.41(
66
)

Total Temperature Control

4.41(
66
)
Customers say: Super punctual
33 years of experience

Total Temperature Control, a complete, licensed HVAC contractor providing heating, cooling, and ventilation solutions for both residential and commercial clients in the Greater Boston area since 1990. We are dedicated to supplying high quality products and exceptional customer service which has earned us the Carrier President’s Award for 10 years. Our experienced team of engineers, HVAC technicians, plumbers, and electricians will design, install and maintain an HVAC system that meets your needs and your budget.

"not sure how there are so many good reviews. the company does not stand behind their work and 100% satisfaction means nothing. After a bad installation, where coolant leaked multiple times, air in the gas line, defective pump, cracked condensation pipes , leaking rain in unsealed roof exhaust, gaps in newly installed ductwork. They told me to find someone else to service the system after I left a bad review."

Maksim R on April 2022

Total Temperature Control, a complete, licensed HVAC contractor providing heating, cooling, and ventilation solutions for both residential and commercial clients in the Greater Boston area since 1990. We are dedicated to supplying high quality products and exceptional customer service which has earned us the Carrier President’s Award for 10 years. Our experienced team of engineers, HVAC technicians, plumbers, and electricians will design, install and maintain an HVAC system that meets your needs and your budget.

"not sure how there are so many good reviews. the company does not stand behind their work and 100% satisfaction means nothing. After a bad installation, where coolant leaked multiple times, air in the gas line, defective pump, cracked condensation pipes , leaking rain in unsealed roof exhaust, gaps in newly installed ductwork. They told me to find someone else to service the system after I left a bad review."

Maksim R on April 2022

Hallmark Home Improvement

No reviews yet

Hallmark Home Improvement

No reviews yet
27 years of experience

Owner David Tomolillo personally oversees all remodeling projects performed by his company. A native to the North Boston area, David brings his passion for quality, strong work ethic and twenty plus years of experience to Hallmark Homes Remodeling. His in-depth product knowledge, craftsmanship and practical approach ensure that his customers are delivered quality, cost effective solutions for their home improvement needs. We have hundreds of satisfied customers to prove it.

Owner David Tomolillo personally oversees all remodeling projects performed by his company. A native to the North Boston area, David brings his passion for quality, strong work ethic and twenty plus years of experience to Hallmark Homes Remodeling. His in-depth product knowledge, craftsmanship and practical approach ensure that his customers are delivered quality, cost effective solutions for their home improvement needs. We have hundreds of satisfied customers to prove it.

Carlton Plumbing & Heating

No reviews yet

Carlton Plumbing & Heating

No reviews yet
24 years of experience

Here at Carlton Plumbing & Heating, we are a 24 hour service! Call to make your appointment today!

Here at Carlton Plumbing & Heating, we are a 24 hour service! Call to make your appointment today!

Avatar for Future Energy Solar LLC

Future Energy Solar LLC

5.00(
7
)

Future Energy Solar LLC

5.00(
7
)
Customers say: Quick response
Recommended by 100% of Angi customers
Recommended by 100% of HomeAdvisor customers

Solar Energy Dealer, Installer, Sales, & Consulting.

"Future Energy Solar gave me exactly what I needed, great pricing on the solar system. Great customer service ,kept me updated and submitted all paperwork right on time. On the day of installation everything was installed symmetrically and professionally. System was turned on within two weeks. It's been 11 months and I have saved close to $2700. Happy Client."

Harlene G on April 2019

Solar Energy Dealer, Installer, Sales, & Consulting.

"Future Energy Solar gave me exactly what I needed, great pricing on the solar system. Great customer service ,kept me updated and submitted all paperwork right on time. On the day of installation everything was installed symmetrically and professionally. System was turned on within two weeks. It's been 11 months and I have saved close to $2700. Happy Client."

Harlene G on April 2019

JF SERVICES AND HVAC

No reviews yet

JF SERVICES AND HVAC

No reviews yet
Free onsite estimate

I am responsible and always I want customers to have satisfaction I am very passionate about my job and strive to do the best I can everyday Reaching goals are very important to me and I take pride in the work I do. And give me a call at (781) 472-0094 or text or leave your phone number on your description thank you

I am responsible and always I want customers to have satisfaction I am very passionate about my job and strive to do the best I can everyday Reaching goals are very important to me and I take pride in the work I do. And give me a call at (781) 472-0094 or text or leave your phone number on your description thank you

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FAQs for solar panel installation projects in Watertown, MA

Annual inspections are recommended for residential solar systems, though specific needs vary based on several factors. Newer installations in moderate climates require less frequent professional evaluation, while systems over a decade old or those in harsh environments benefit from more regular attention. Always arrange an inspection following severe weather events that might have damaged components or affected system performance.

Pre-inspection cleaning isn't necessary, as evaluating the current condition of your panels is part of the assessment process. Professional inspectors can effectively examine systems regardless of cleanliness level, as accumulation patterns often provide valuable diagnostic information. However, if panels are completely obscured by heavy debris, bird droppings, or other materials that prevent visual examination of the surface, a basic rinse might be helpful before the scheduled inspection.

A comprehensive solar inspection examines all system components, including panels, wiring, mounting hardware, and inverters. Technicians check for physical damage like cracks or delamination, evaluate electrical connections for corrosion or looseness, and assess overall system performance against expected output levels. The inspection may also verify that safety systems are functioning correctly and that the installation complies with applicable codes and standards.

While traditional manual inspections are effective for most residential systems, specialized inspection methods may provide advantages for certain installations. Factors to consider include system size, roof complexity, accessibility challenges, and safety considerations. For multi-story homes or commercial installations where roof access is difficult or potentially hazardous, alternative inspection approaches offer improved documentation and reduced risk, though potentially at a higher cost.

The Watertown, MA homeowners’ guide to solar panel installations

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

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