Top-rated energy efficiency auditors.

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Verified Reviews for Energy Efficiency Auditing pros in Sherborn, MA

*The Angi rating for Energy Efficiency Auditing companies in Sherborn, MA is a rating based on verified reviews from our community of homeowners who have used these pros to meet their Energy Efficiency Auditing needs.

*The HomeAdvisor rating for Energy Efficiency Auditing companies in Sherborn, MA is a rating based on verified reviews from our community of homeowners who have used these pros to meet their Energy Efficiency Auditing needs.

Last update on November 13, 2025

Find Energy efficiency auditors in Sherborn

Avatar for H L Bowman

H L Bowman

4.72(
387
)
•Approved Pro

H L Bowman

4.72(
387
)
•Approved Pro
Customers say: Super punctual
Recommended by 90% of Angi customers
Recommended by 90% of HomeAdvisor customers
2189 local quotes requested

HL Bowman has been in the same location for 38 years and owned by the same family for over 65 years. HL Bowman is a non commission based company. HL Bowman employees will never upsell you a product you don't need. Dennis and Bryan Enders and his family have deep roots in the Harrisburg community. After 65 years Dennis and family stay committed to giving the community the best possible service and product to fit their needs. HL Bowman has won Angie's List super service award every year.

"Adding to the above review: NEGATIVE STARS 1. The Daikon' ductless mini-split' unit, sold to me by Brian Enders and installed by H.L. Bowman Incorporated, unleashed a deluge that not only saturated the hardwood floor in my dining room but also flowed onto bookshelves and drawers in the room below, drenching 25 family photo albums. 2. The water pooled atop and between each section of my quarter-sawn oak Stickley barrister bookcase. 3. The water seeped inside each section of the bookcase. 4. The water ran onto particularly important and expensive books, framed photographs, as well as four small wooden boxes containing four of my dog's cremains. 5. In past years, water from a second-floor unit emitted sufficient water to cause a 12' by 5' section of the upstairs floor to crash through to the main floor. All furniture and items in that 12' by 5' section were so water-damaged that they had to be discarded. Water ran behind the plaster and into the wiring contained within the plaster walls. I had to make an insurance claim to have that water damage repaired. 6. In past years, water from a basement unit emitted sufficient water to cause an entire wall of built-in cabinetry to be destroyed and have to be replaced. I had to make an insurance claim to have that water damage repaired. 7. In past years, four of the six "ductless mini-split" units have simply not worked. They do not cool. They do not heat. They hang on the wall and blink. 8. Throughout these years of destruction, distress, and financial duress caused by the six 'ductless mini-splits,' Brian Enders has consistently refused to rectify the problem. 9. The FIRST REASON Brian Enders uses to refuse to rectify the problem: When the ceiling caved in from the upstairs unit and the cabinetry was ruined by the downstairs unit, Brian Enders offered substandard assistance. He sent a contractor to my home to spackle over water-damaged plaster, thus sealing water inside the walls. When I saw the inferior repairs Enders offered, I stated that I was going to call my lawyer. Enders said that because I had threatened legal action, his company would no longer serve me. 10. The SECOND REASON Brian Enders gives for refusing to rectify the problems: When the ceiling caved in from the upstairs unit and the cabinetry was ruined by the downstairs unit and Brian Enders offered substandard assistance, I wrote bad reviews of Brian Enders and his company "all over the internet." (Enders words.) Yes. I did, indeed, write bad reviews of Brian Enders and his company, H. L. Bowman, Incorporated, "all over the internet" and will continue to do so until Brian Enders and his company, H. L. Bowman, Incorporated, make the six Daikon "mini-split" units they installed in my home work properly. 11. Because Brian Enders and his company, refuse to help me, I have paid five other companies, & one private contractor, to come to my home to diagnose and repair the six Daikon "ductless mini-split" units. Each one has been unable to do so. Each one says that there is something so faulty about these units &/or the installation of these units that it is impossible to determine what is actually wrong with them. 12. On Saturday, June 22, 2024, I tried to set up a service call with H.L Bowman, Incorporated, using a form on their website. 13. On Saturday, June 22, 2024, I received a text from H.L. Bowman confirming an appointment for Monday, June 24, 2024, with a note relating that on the day of the service, I would receive a call 30 minutes before the technician arrived. 14. On Monday, June 24, 2024, I instead received a phone call from H.L. Bowman informing me that they are too busy serving their VIP customers to send a technician out to serve me. Today is Tuesday, June 24, 2025. H.L. Bowman has still not rectified their financial and material injury to me."

Faith M on June 2025

HL Bowman has been in the same location for 38 years and owned by the same family for over 65 years. HL Bowman is a non commission based company. HL Bowman employees will never upsell you a product you don't need. Dennis and Bryan Enders and his family have deep roots in the Harrisburg community. After 65 years Dennis and family stay committed to giving the community the best possible service and product to fit their needs. HL Bowman has won Angie's List super service award every year.

"Adding to the above review: NEGATIVE STARS 1. The Daikon' ductless mini-split' unit, sold to me by Brian Enders and installed by H.L. Bowman Incorporated, unleashed a deluge that not only saturated the hardwood floor in my dining room but also flowed onto bookshelves and drawers in the room below, drenching 25 family photo albums. 2. The water pooled atop and between each section of my quarter-sawn oak Stickley barrister bookcase. 3. The water seeped inside each section of the bookcase. 4. The water ran onto particularly important and expensive books, framed photographs, as well as four small wooden boxes containing four of my dog's cremains. 5. In past years, water from a second-floor unit emitted sufficient water to cause a 12' by 5' section of the upstairs floor to crash through to the main floor. All furniture and items in that 12' by 5' section were so water-damaged that they had to be discarded. Water ran behind the plaster and into the wiring contained within the plaster walls. I had to make an insurance claim to have that water damage repaired. 6. In past years, water from a basement unit emitted sufficient water to cause an entire wall of built-in cabinetry to be destroyed and have to be replaced. I had to make an insurance claim to have that water damage repaired. 7. In past years, four of the six "ductless mini-split" units have simply not worked. They do not cool. They do not heat. They hang on the wall and blink. 8. Throughout these years of destruction, distress, and financial duress caused by the six 'ductless mini-splits,' Brian Enders has consistently refused to rectify the problem. 9. The FIRST REASON Brian Enders uses to refuse to rectify the problem: When the ceiling caved in from the upstairs unit and the cabinetry was ruined by the downstairs unit, Brian Enders offered substandard assistance. He sent a contractor to my home to spackle over water-damaged plaster, thus sealing water inside the walls. When I saw the inferior repairs Enders offered, I stated that I was going to call my lawyer. Enders said that because I had threatened legal action, his company would no longer serve me. 10. The SECOND REASON Brian Enders gives for refusing to rectify the problems: When the ceiling caved in from the upstairs unit and the cabinetry was ruined by the downstairs unit and Brian Enders offered substandard assistance, I wrote bad reviews of Brian Enders and his company "all over the internet." (Enders words.) Yes. I did, indeed, write bad reviews of Brian Enders and his company, H. L. Bowman, Incorporated, "all over the internet" and will continue to do so until Brian Enders and his company, H. L. Bowman, Incorporated, make the six Daikon "mini-split" units they installed in my home work properly. 11. Because Brian Enders and his company, refuse to help me, I have paid five other companies, & one private contractor, to come to my home to diagnose and repair the six Daikon "ductless mini-split" units. Each one has been unable to do so. Each one says that there is something so faulty about these units &/or the installation of these units that it is impossible to determine what is actually wrong with them. 12. On Saturday, June 22, 2024, I tried to set up a service call with H.L Bowman, Incorporated, using a form on their website. 13. On Saturday, June 22, 2024, I received a text from H.L. Bowman confirming an appointment for Monday, June 24, 2024, with a note relating that on the day of the service, I would receive a call 30 minutes before the technician arrived. 14. On Monday, June 24, 2024, I instead received a phone call from H.L. Bowman informing me that they are too busy serving their VIP customers to send a technician out to serve me. Today is Tuesday, June 24, 2025. H.L. Bowman has still not rectified their financial and material injury to me."

Faith M on June 2025

Avatar for Modern Energy

Modern Energy

5.00(
3
)
•Approved Pro

Modern Energy

5.00(
3
)
•Approved Pro
Customers say: Quick response
Recommended by 100% of Angi customers
Recommended by 100% of HomeAdvisor customers
582 local quotes requested

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!

"The guys at Modern Energy did an excellent job, Ryan was VERY responsive and got me the best deal possible. These past two summers showed how beneficial this type of system mini-splits are. Highly recommend!"

Michael T on September 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!

"The guys at Modern Energy did an excellent job, Ryan was VERY responsive and got me the best deal possible. These past two summers showed how beneficial this type of system mini-splits are. Highly recommend!"

Michael T on September 2025

Avatar for Nicholson Plumbing Heating & Air Conditioning Inc

Nicholson Plumbing Heating & Air Conditioning Inc

4.54(
560
)
•Approved Pro

Nicholson Plumbing Heating & Air Conditioning Inc

4.54(
560
)
•Approved Pro
Customers say: Super punctual
57 local quotes requested
25 years of experience

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

Avatar for Ryan Silvia

Ryan Silvia

4.43(
7
)
•Approved Pro

Ryan Silvia

4.43(
7
)
•Approved Pro
Customers say: Quick response
2 years of experience
Free onsite estimate

Here at R.Silvia Electrical Contractor we take great pride in our experience, expertise, quality, and customer service that we provide to meet the consumers needs. It is our mission to provide excellent workmanship and complete customer satisfaction from start to completion of a project. In order to understand the needs and expectations of our customers, we take great care to work and communicate with every customer in a professional manner. Our reputation is based on service, safety, and quality, regardless of how large or small the job. Call or text 4012637151

"Ryan was on time, assessed and explained the problem(s), gave estimate, purchased materials, provided receipts and did not inflate his hours worked and provided accurate billing. He did everything that needed to be done today in a straightforward and professional manner. I put his name and number in my contacts for future needs."

Tom C on October 2025

Here at R.Silvia Electrical Contractor we take great pride in our experience, expertise, quality, and customer service that we provide to meet the consumers needs. It is our mission to provide excellent workmanship and complete customer satisfaction from start to completion of a project. In order to understand the needs and expectations of our customers, we take great care to work and communicate with every customer in a professional manner. Our reputation is based on service, safety, and quality, regardless of how large or small the job. Call or text 4012637151

"Ryan was on time, assessed and explained the problem(s), gave estimate, purchased materials, provided receipts and did not inflate his hours worked and provided accurate billing. He did everything that needed to be done today in a straightforward and professional manner. I put his name and number in my contacts for future needs."

Tom C on October 2025

Avatar for Endless Energy

Endless Energy

4.86(
14
)
•Approved Pro

Endless Energy

4.86(
14
)
•Approved Pro
Customers say: Quality work
344 local quotes requested
45 years of experience

Endless Energy is the #1 trusted local HVAC and Plumbing Company servicing the majority of the state of Massachusetts. Specializing in Furnaces, Boilers, and Heat Pumps we have Master Plumbers, Electricians, and HVAC Technicians all under one roof reducing your need to find multiple contractors! We are also a Mass Save partner and can conduct your no cost Mass Save Home Energy Assessment and install any recommended insulation. We can help you with: *Heating Repairs, Installation, & Service *AC Repairs, Installation, & Service *Plumbing Repairs, Installation & Service *Water Heater Replacement & Service *Indoor Air Quality Solutions *Ductwork & Line Set Solutions *Electrical Panel Upgrades and Replacement *Insulation *No Cost Home Energy Assessments A Mass Save certified contractor with an A+BBB rating. All of our skilled technicians undergo an extensive background and drug screening prior to being hired to our team!

"Seamless. From the moment of making the appointment with the sales rep to come out to the follow-up phone call, I could not have asked for this installation to go better at a difficult time. They listened to my concerns regarding the look on the outside of the house and the location of units inside. They assisted with all aspects of the Mass Save program making the application process easy. They took care of actual submission of the paperwork where most companies wanted to provide the info to me to then submit."

Jonathan S on July 2020

Endless Energy is the #1 trusted local HVAC and Plumbing Company servicing the majority of the state of Massachusetts. Specializing in Furnaces, Boilers, and Heat Pumps we have Master Plumbers, Electricians, and HVAC Technicians all under one roof reducing your need to find multiple contractors! We are also a Mass Save partner and can conduct your no cost Mass Save Home Energy Assessment and install any recommended insulation. We can help you with: *Heating Repairs, Installation, & Service *AC Repairs, Installation, & Service *Plumbing Repairs, Installation & Service *Water Heater Replacement & Service *Indoor Air Quality Solutions *Ductwork & Line Set Solutions *Electrical Panel Upgrades and Replacement *Insulation *No Cost Home Energy Assessments A Mass Save certified contractor with an A+BBB rating. All of our skilled technicians undergo an extensive background and drug screening prior to being hired to our team!

"Seamless. From the moment of making the appointment with the sales rep to come out to the follow-up phone call, I could not have asked for this installation to go better at a difficult time. They listened to my concerns regarding the look on the outside of the house and the location of units inside. They assisted with all aspects of the Mass Save program making the application process easy. They took care of actual submission of the paperwork where most companies wanted to provide the info to me to then submit."

Jonathan S on July 2020

Avatar for Wattson Home Solutions

Wattson Home Solutions

5.00(
1
)

Wattson Home Solutions

5.00(
1
)
20 years of experience

We are your local green expert when it comes to improving a home’s energy efficiency and comfort. We help residents by offering leading-edge home performance solutions that save energy and lower utility bills. Start with a no-cost Mass Save home energy assessment- From there we also install recommended insulation upgrades, ductless mini split/ heat pumps, as well as solar! We will assist with all rebates & incentives you qualify for.

We are your local green expert when it comes to improving a home’s energy efficiency and comfort. We help residents by offering leading-edge home performance solutions that save energy and lower utility bills. Start with a no-cost Mass Save home energy assessment- From there we also install recommended insulation upgrades, ductless mini split/ heat pumps, as well as solar! We will assist with all rebates & incentives you qualify for.

Avatar for Rycor HVAC

Rycor HVAC

5.00(
5
)

Rycor HVAC

5.00(
5
)
Customers say: Quick response
19 years of experience

The Mini-Split Specialists serving the Worcester area. With more than two decades experience in ductless heating & cooling and 800+ 5-star reviews, RYCOR offers expert advice, top-tier equipment and guidance on how to take advantage of utility rebates and tax credits to lower up-front costs. Our whisper-quiet next-gen heat pumps are a clean and economical comfort solution for any room of the house. RYCOR is a proud Mitsubishi Diamond Elite contractor, offering 12-year warranties and 0% financing. When it comes to mini-splits, we know how!

"Excellent service, from planning to completion a very professional job."

Mark W on May 2024

The Mini-Split Specialists serving the Worcester area. With more than two decades experience in ductless heating & cooling and 800+ 5-star reviews, RYCOR offers expert advice, top-tier equipment and guidance on how to take advantage of utility rebates and tax credits to lower up-front costs. Our whisper-quiet next-gen heat pumps are a clean and economical comfort solution for any room of the house. RYCOR is a proud Mitsubishi Diamond Elite contractor, offering 12-year warranties and 0% financing. When it comes to mini-splits, we know how!

"Excellent service, from planning to completion a very professional job."

Mark W on May 2024

Avatar for EcoLifeSolar By SunPower

EcoLifeSolar By SunPower

5.00(
10
)

EcoLifeSolar By SunPower

5.00(
10
)
Customers say: Quick response
Recommended by 100% of Angi customers
Recommended by 100% of HomeAdvisor customers

Solar Panels for residential homes. We help Homeowners save significant money on electric bills and control their energy costs while saving the planet. Serving Massachusetts homes; we will read your bill and let you know immediately how much we can save you monthly. No Money Down! $250 Visa Gift Card upon signing!

"Rob was extremely helpful and personable. Answered my questions that I had in a way that made the process easy to understand."

Joshua C on March 2023

Solar Panels for residential homes. We help Homeowners save significant money on electric bills and control their energy costs while saving the planet. Serving Massachusetts homes; we will read your bill and let you know immediately how much we can save you monthly. No Money Down! $250 Visa Gift Card upon signing!

"Rob was extremely helpful and personable. Answered my questions that I had in a way that made the process easy to understand."

Joshua C on March 2023

Avatar for Sunrich Power -

Sunrich Power -

5.00(
16
)

Sunrich Power -

5.00(
16
)
Customers say: Quick response
Recommended by 93% of Angi customers
Recommended by 93% of HomeAdvisor customers

Massachusetts’ Trusted solar energy experts, serving Massachusetts since 2018. We provide transparent energy consultations and award-winning solar solutions for home and business. Our expertise includes tailored rooftop solar installation for all roof types, including specialized slate roof. Providing comprehensive financial analysis and ROI projections, multiple ownership options through trusted financial partners. Offering alternative solutions such as community-shared solar, competitive electricity rates, and EV charging solutions for residential, commercial and municipal. With over 2,000 happy Massachusetts customers, we're committed to delivering only the highest-quality products, craftsmanship and service. Sunrich Power delivers energy solutions that work for you—whether it's a tailored rooftop solar project, EV charging solutions, or something simple- Our 'electric bill services” : Highly-competitive electricity rates, or community-shared solar credits for home or business. Contact us today for a hassle-free energy consultation, without pushy salespeople using high pressure sales tactics!

"James Richardson, my sales rep has been excellent throughout the entire process, providing expertise in all areas of the sale, service, banking, product. He has set the right expectations along the way. Unfortunately, Palmetto moved too fast to distance themselves from Sunlight Financial, causing me significant anxiety and distress, ultimately backtracking to get me back on track losing two weeks in my installation."

Jerry H on November 2023

Massachusetts’ Trusted solar energy experts, serving Massachusetts since 2018. We provide transparent energy consultations and award-winning solar solutions for home and business. Our expertise includes tailored rooftop solar installation for all roof types, including specialized slate roof. Providing comprehensive financial analysis and ROI projections, multiple ownership options through trusted financial partners. Offering alternative solutions such as community-shared solar, competitive electricity rates, and EV charging solutions for residential, commercial and municipal. With over 2,000 happy Massachusetts customers, we're committed to delivering only the highest-quality products, craftsmanship and service. Sunrich Power delivers energy solutions that work for you—whether it's a tailored rooftop solar project, EV charging solutions, or something simple- Our 'electric bill services” : Highly-competitive electricity rates, or community-shared solar credits for home or business. Contact us today for a hassle-free energy consultation, without pushy salespeople using high pressure sales tactics!

"James Richardson, my sales rep has been excellent throughout the entire process, providing expertise in all areas of the sale, service, banking, product. He has set the right expectations along the way. Unfortunately, Palmetto moved too fast to distance themselves from Sunlight Financial, causing me significant anxiety and distress, ultimately backtracking to get me back on track losing two weeks in my installation."

Jerry H on November 2023

Avatar for RSS Solar

RSS Solar

No reviews yet

RSS Solar

No reviews yet
Free onsite estimate

We make solar simple-- We are dedicated to making solar energy affordable and accessible to everyone-- with ZERO upfront costs.* Your home can become its own tiny power station and generate plenty of reliable energy, all while reducing your electricity bill. Plus, it doesn't hurt that your greener lifestyle will help your state achieve its renewable energy goals.

We make solar simple-- We are dedicated to making solar energy affordable and accessible to everyone-- with ZERO upfront costs.* Your home can become its own tiny power station and generate plenty of reliable energy, all while reducing your electricity bill. Plus, it doesn't hurt that your greener lifestyle will help your state achieve its renewable energy goals.

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Energy Efficiency Auditing questions, answered by experts

After you receive your audit and report, review the findings and determine which of the prescribed changes you want to make to improve your home’s energy efficiency. Start by contacting the type of professionals recommended by the auditor who can help you remedy the issues discovered during the audit. Prioritize the projects by urgency, importance, and budget. Then, gather estimates from several professionals, remembering to verify any necessary licensing and experience information.

Energy output depends on turbine size, average wind speed at your site, and system efficiency. A 5 kW turbine in a good wind location can generate 8,000 to 12,000 kilowatt-hours per year, which may cover a large portion of an average home’s needs. Accurate output estimates require a professional wind assessment and a review of your household’s energy usage patterns.

Smart glass doesn’t use a lot of electricity, and you can expect a standard window to add between $1 and $2 per year to your electric bills. Smart glass is proof that energy-efficient windows work. Although your smart windows may consume a little energy to operate, they can save enough energy to offset the costs. If you’re concerned about the minimal bump to your electricity consumption, you can opt for smart tint, which doesn’t require electricity to work.

You can determine what size generator you need by listing the various appliances it will power during an outage. Write down the start-up watt usage, and then add them all together. 

A 7,500-watt generator will run your refrigerator, freezer, well pump, and lighting circuits without a problem. However, you’ll need an extra 3,000 to 4,500 watts to run your water heater and another 5,000 to 25,000 watts to run your electric furnace. In these instances, a whole-home generator is your best bet for running your critical equipment.

The number one culprit of high energy bills is older appliances, especially fridges and freezers that are left on all the time. These two appliances tend to last a long time, which is good, but it also means that newer models are usually significantly more energy-efficient due to upgraded technology. The second most common reason for a high bill is heating and air conditioning.

The Sherborn, MA homeowners’ guide to energy efficiency auditing services

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