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Solar panel installers in South Walpole
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
Modern Energy is a top rated Mass Save contractor that specializes in Whole Home Heat Pump installation for both residential and commercial customers. With deep roots in the energy efficiency world, we always make sure to install the most efficient, cost-effective products on the market. Plus - we have in house staff to help our customers handle the rebate and financing process!
"Awesome, everyone was so friendly and helpful, answered all my questions and very professional. I would recommend Modern Energy in Worcester to everyone. I am so pleased with there work and services."
Karen Q on March 2024
Modern Energy is a top rated Mass Save contractor that specializes in Whole Home Heat Pump installation for both residential and commercial customers. With deep roots in the energy efficiency world, we always make sure to install the most efficient, cost-effective products on the market. Plus - we have in house staff to help our customers handle the rebate and financing process!
"Awesome, everyone was so friendly and helpful, answered all my questions and very professional. I would recommend Modern Energy in Worcester to everyone. I am so pleased with there work and services."
Karen Q on March 2024
Our priority is your comfort at home. Why Choose Us? - 5-star Rated Company: We are a 5-star rated company with more than 400 satisfied clients. - Customer Success: We focus on long-term relationships. - Specialist: Expert knowledge and proven skills. - Licensed and Insured: Our services are fully insured, providing you with peace of mind. - Quality in Everything we do: Best service with the best products. - Double-year warranty on labor. - Emergency Service: We're ON 24/7 to ensure your well-being.
"They were on time worked fast and efficient"
Patrick O on April 2025
Our priority is your comfort at home. Why Choose Us? - 5-star Rated Company: We are a 5-star rated company with more than 400 satisfied clients. - Customer Success: We focus on long-term relationships. - Specialist: Expert knowledge and proven skills. - Licensed and Insured: Our services are fully insured, providing you with peace of mind. - Quality in Everything we do: Best service with the best products. - Double-year warranty on labor. - Emergency Service: We're ON 24/7 to ensure your well-being.
"They were on time worked fast and efficient"
Patrick O on April 2025
When it comes to great service for your home or business, it doesn't get better than the professionalism and dedication of Rodenhiser. It's an unsurpassed level of service built on a promise that ensures you get the very best - when you call Rodenhiser your satisfaction is guaranteed. With 90+ years of delighted residential and commercial clients, you can be sure that it's a promise that Rodenhiser delivers on every day.
"The work was done correctly and promptly, but quite expensive. On the plus side, he presented all the options and didn't really try to upsell. Just the facts."
stephen m on August 2024
When it comes to great service for your home or business, it doesn't get better than the professionalism and dedication of Rodenhiser. It's an unsurpassed level of service built on a promise that ensures you get the very best - when you call Rodenhiser your satisfaction is guaranteed. With 90+ years of delighted residential and commercial clients, you can be sure that it's a promise that Rodenhiser delivers on every day.
"The work was done correctly and promptly, but quite expensive. On the plus side, he presented all the options and didn't really try to upsell. Just the facts."
stephen m on August 2024
Nicholson Plumbing, Heating & Air Conditioning is the company of choice for all your plumbing, heating and air conditioning repair and replacement needs. Our commitment is to you, our customer, and to provide you with outstanding plumbing and HVAC service. You can rest assured with our 100% satisfaction guarantee, 24-hour emergency service, solid warranty and highly trained technicians. Serving the Metro West, MA's service and installation needs. Fully Licensed in MA Plumbing and Gas Fitting. Lic# 30207. Universal EPA Certified & 410A Certified. Fully Insured. Nicholson Plumbing, Heating & Air Conditioning offers a 5% senior discount on service repairs.
"Went very well and got more information than with other companies."
Susan H on April 2025
Nicholson Plumbing, Heating & Air Conditioning is the company of choice for all your plumbing, heating and air conditioning repair and replacement needs. Our commitment is to you, our customer, and to provide you with outstanding plumbing and HVAC service. You can rest assured with our 100% satisfaction guarantee, 24-hour emergency service, solid warranty and highly trained technicians. Serving the Metro West, MA's service and installation needs. Fully Licensed in MA Plumbing and Gas Fitting. Lic# 30207. Universal EPA Certified & 410A Certified. Fully Insured. Nicholson Plumbing, Heating & Air Conditioning offers a 5% senior discount on service repairs.
"Went very well and got more information than with other companies."
Susan H on April 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!
"We have had several Sila visits in recent months - all exceptional. VISIT 1: We had old pipes and valves that limited our dishwasher, so we had that replaced. While there, the Sila agent suggested we replace some of the attached lines and managed to streamline our hookups by removing some of the unneeded valves and connections no longer needed. VISIT 2: We similarly had a great visit and instal from David, who did a very beautiful install on our new water heater. He removed the broken unit, improved the connection design, put in improved valves and labelled each with a tag, then tagged other connections through the basement."
Thomas C on November 2019
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!
"We have had several Sila visits in recent months - all exceptional. VISIT 1: We had old pipes and valves that limited our dishwasher, so we had that replaced. While there, the Sila agent suggested we replace some of the attached lines and managed to streamline our hookups by removing some of the unneeded valves and connections no longer needed. VISIT 2: We similarly had a great visit and instal from David, who did a very beautiful install on our new water heater. He removed the broken unit, improved the connection design, put in improved valves and labelled each with a tag, then tagged other connections through the basement."
Thomas C on November 2019
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.
"The electrician, Mr. Jason Thompson, did an excellent job."
Armen S on April 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.
"The electrician, Mr. Jason Thompson, did an excellent job."
Armen S on April 2025
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
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
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.
Solar panel installations FAQs
Spring and fall offer the optimal time for scheduling an installation. Cooler weather means crews can work more efficiently without the summer heat slowing them down, and contractors often have increased availability between peak seasons. You’ll also avoid winter storms that can delay roof work. If you’re targeting a tax credit for the current year, aim to have the system running by December 31 so the credit can be applied.
Most systems recoup their post-tax-credit cost in six to 10 years. Your exact payback window depends on local utility rates, the amount of sunlight your roof receives, and the amount of energy you use. The higher your electric bill, the faster those panels work off their price tag. Add in the 30% federal tax credit and any state incentives, and you’ll start seeing true savings even sooner.
You can count on most panels to produce power for 25 to 30 years, and many monocrystalline models keep going for closer to 40. Thin-film options sit on the shorter end at 20 years. Staying on top of annual cleanings and quick repairs helps every panel reach the high end of its lifespan and protects your investment along the way.
Yes—if your system is properly sized, you can power an entire home with solar energy. A solar power designer will look at your yearly kilowatt-hour use, roof space, local sun hours, and whether you’re adding battery storage. When those pieces line up, the panels can cover all of your day-to-day needs and bank extra energy for nighttime or cloudy days.
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