Top-rated energy efficiency auditors.

Get matched with top energy efficiency auditors in Wellesley, MA

There are 6 highly-rated local energy efficiency auditors.

Need a pro for your energy efficiency auditing project in Wellesley, MA?

Select your specific project to find the pro for you.

TRUSTED BY WELLESLEY, MA HOMEOWNERS

  • Average homeowner rating star icon4.5
    Average homeowner rating
  • Verified reviews icon12
    Verified energy efficiency auditing services reviews

Find Energy efficiency auditors in Wellesley

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 Airco Home Comfort Services LLC

Airco Home Comfort Services LLC

4.85(
27
)
Approved Pro

Airco Home Comfort Services LLC

4.85(
27
)
Approved Pro
Customers say: Quality work
Recommended by 96% of Angi customers
Recommended by 96% of HomeAdvisor customers
24 local quotes requested

Specializing in all HVAC/R services to include Geothermal Heating and Cooling. Ground Source Heat Pump services. Additional service area: Chelmsford-Haverhill, Boxford-Gloucester, Manchester-Nashua & Portions Of Downtown. No interest Financing available and all major credit cards accepted. Additional DBA - Airco Heating & Cooling. Additional email - [email protected]. Master Sheet Metal License: 1325 and Master Plumber License: 11593

"Joe, the AirCo sales representative, was very professional. He actually asked for my feedback on priorities for a new boiler. This was important to me because the boiler sits below our family room, and the noise level of the boiler was as issue. His proposals listed several boiler options, based on heating efficiency, which were competitively priced. The installation was run by Steve, who was able to fit in the installation the next week. Steve, and his crews, were punctual and courteous, and the installation went smoothly. It's only been a week, but I am very pleased with my Bosch boiler, the quality of the work, the price paid, and the timeliness of the installation."

David B on November 2018

Specializing in all HVAC/R services to include Geothermal Heating and Cooling. Ground Source Heat Pump services. Additional service area: Chelmsford-Haverhill, Boxford-Gloucester, Manchester-Nashua & Portions Of Downtown. No interest Financing available and all major credit cards accepted. Additional DBA - Airco Heating & Cooling. Additional email - [email protected]. Master Sheet Metal License: 1325 and Master Plumber License: 11593

"Joe, the AirCo sales representative, was very professional. He actually asked for my feedback on priorities for a new boiler. This was important to me because the boiler sits below our family room, and the noise level of the boiler was as issue. His proposals listed several boiler options, based on heating efficiency, which were competitively priced. The installation was run by Steve, who was able to fit in the installation the next week. Steve, and his crews, were punctual and courteous, and the installation went smoothly. It's only been a week, but I am very pleased with my Bosch boiler, the quality of the work, the price paid, and the timeliness of the installation."

David B on November 2018


Avatar for Endless Energy

Endless Energy

4.88(
16
)
Approved Pro

Endless Energy

4.88(
16
)
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 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.


Avatar for Blue Air HVAC

Blue Air HVAC

5.00(
1
)

Blue Air HVAC

5.00(
1
)
Recommended by 100% of Angi customers
Recommended by 100% of HomeAdvisor customers

HVAC Specialists! Repair, Diagnostics, and Installation. We have the experience and dedication to bring your dreams to reality! We guarantee your satisfaction, and we won’t leave until the job is done right. Call or click to schedule a free estimate today!

"Very professional, right price. Came to the project and did his job, no mess and great customer service. I would right him again."

Welton D on February 2022

HVAC Specialists! Repair, Diagnostics, and Installation. We have the experience and dedication to bring your dreams to reality! We guarantee your satisfaction, and we won’t leave until the job is done right. Call or click to schedule a free estimate today!

"Very professional, right price. Came to the project and did his job, no mess and great customer service. I would right him again."

Welton D on February 2022


Avatar for PET HVAC, Inc.

PET HVAC, Inc.

No reviews yet

PET HVAC, Inc.

No reviews yet
20 years of experience

PET HVAC, Inc. is the air conditioning, Heating and HVAC Company. American HVAC that satisfies the prerequisites of countless, Commercial and Residential clients in Massachusetts and New Hampshire. We mean to offer the extremely most noteworthy standard of after-deals administrations including warranty, Maintenance and Troubleshooting. Our authorized and EPA confirmed professionals are prepared to give you master air conditioning, Heating and HVAC Services. Rousing a country to ration vitality through inventive administration and Performance while giving quality equipment, Products, and Service. We give quality support of all our customers, Regardless. Our principal objective is consumer loyalty.

PET HVAC, Inc. is the air conditioning, Heating and HVAC Company. American HVAC that satisfies the prerequisites of countless, Commercial and Residential clients in Massachusetts and New Hampshire. We mean to offer the extremely most noteworthy standard of after-deals administrations including warranty, Maintenance and Troubleshooting. Our authorized and EPA confirmed professionals are prepared to give you master air conditioning, Heating and HVAC Services. Rousing a country to ration vitality through inventive administration and Performance while giving quality equipment, Products, and Service. We give quality support of all our customers, Regardless. Our principal objective is consumer loyalty.


Avatar for SumZero Energy Systems

SumZero Energy Systems

5.00(
12
)

SumZero Energy Systems

5.00(
12
)
Customers say: Quick response
Recommended by 100% of Angi customers
Recommended by 100% of HomeAdvisor customers

SumZero Energy is an owner-operated company. We are Home ENERGY Improvement Contractors. The services we offer are: - Heating - Cooling - Ventilation - Energy Assessments Our goal is to improve home comfort and efficiency through building science principles. We pride ourselves in solving root issues of energy problems, customer service, and quality work.

"SumZero has been great to work with on this rather complex project. From Paul's communication to Marcelo's great installation leadership, and Daniel's final adjustments this was executed with precision, great communication and quality. I looked at several options, probably had 3-4 other quotes, various vendors, Paul was the only one who understood that I needed an extra zone split and embedded that into the proposal. His team further revised the details during the install to optimize air flow. When COVID-driven supply chain difficulties got in the way, Paul kept us informed and was able to exceed his commitments. Sarai also guided us to a 0% 84-month loan in a couple of days, and promptly refunded deposit money not covered by it. We are excited to have our new Bosch Heat Pump and looking forward to many years of fine operation!"

Mike L on June 2022

SumZero Energy is an owner-operated company. We are Home ENERGY Improvement Contractors. The services we offer are: - Heating - Cooling - Ventilation - Energy Assessments Our goal is to improve home comfort and efficiency through building science principles. We pride ourselves in solving root issues of energy problems, customer service, and quality work.

"SumZero has been great to work with on this rather complex project. From Paul's communication to Marcelo's great installation leadership, and Daniel's final adjustments this was executed with precision, great communication and quality. I looked at several options, probably had 3-4 other quotes, various vendors, Paul was the only one who understood that I needed an extra zone split and embedded that into the proposal. His team further revised the details during the install to optimize air flow. When COVID-driven supply chain difficulties got in the way, Paul kept us informed and was able to exceed his commitments. Sarai also guided us to a 0% 84-month loan in a couple of days, and promptly refunded deposit money not covered by it. We are excited to have our new Bosch Heat Pump and looking forward to many years of fine operation!"

Mike L on June 2022


Avatar for Chilli willie plumbing, HVAC, & Mechanial

Chilli willie plumbing, HVAC, & Mechanial

4.82(
17
)

Chilli willie plumbing, HVAC, & Mechanial

4.82(
17
)
Customers say: Quick response
Recommended by 94% of Angi customers
Recommended by 94% of HomeAdvisor customers

Chilli Willie Plumbing HVAC & Mechanical Inc. is a HVAC and plumbing company based out of Saugus, MA. We serve both residential and commercial clients and offer a variety of money-saving solutions. Combining our use of the highest-quality parts and equipment with our dedication to delivering exceptional work, we strive for nothing less than satisfactory service. We understand in-home system problems can be a wicked nightmare. Our company motto is "Wicked Problem!? Wicked Solution!!" because we expect challenges every day we visit our customers. At the same time, we expect to find you a wicked good solution, at a wicked good price! Being a small company allows us to extend unique pricing to our customers. Not only are our customers saving money, but something money can't buy; time and health! We pride our business on making sure our customers are satisfied and safe!

"Very satisfied with the service. Came out the same day, very reasonable prices, professional engineers."

Joanne H on June 2023

Chilli Willie Plumbing HVAC & Mechanical Inc. is a HVAC and plumbing company based out of Saugus, MA. We serve both residential and commercial clients and offer a variety of money-saving solutions. Combining our use of the highest-quality parts and equipment with our dedication to delivering exceptional work, we strive for nothing less than satisfactory service. We understand in-home system problems can be a wicked nightmare. Our company motto is "Wicked Problem!? Wicked Solution!!" because we expect challenges every day we visit our customers. At the same time, we expect to find you a wicked good solution, at a wicked good price! Being a small company allows us to extend unique pricing to our customers. Not only are our customers saving money, but something money can't buy; time and health! We pride our business on making sure our customers are satisfied and safe!

"Very satisfied with the service. Came out the same day, very reasonable prices, professional engineers."

Joanne H on June 2023

...
Showing 1-10 of 102
Energy Efficiency Auditing questions, answered by experts

Electric bills tend to be lower in spring and fall because people use less electricity during these seasons. Milder temperatures allow for less use of heating and cooling, unlike during winter and summer, which usually bring more extreme temperatures.

STC (Sound Transmission Class) ratings tell you how well something blocks airborne noise. It’s a single number that sums up how much sound a material, like a window, can stop across regular speech frequencies. The higher the number, the better the sound reduction. A typical single-pane window hovers around STC 25 (where you can hear normal conversations), while well-sealed, double-pane options can push past STC 45 (which blocks out loud speech and most music). Just keep in mind that STC doesn’t cover everything—low rumbles like bass or thunder can sneak through—so pairing methods are always ideal for the most peace and quiet.

While many states require all new construction to undergo blower door tests, it’s not a requirement for existing homes. But in both cases, a blower test helps confirm that the contractor has sealed the exterior, that the type of ductwork installed is functioning properly, and that your home is as efficient as possible.

Insulation is measured by R-value, which is the measure of a material's ability to resist heat transfer. The higher the number, the better the insulation. When installing insulation yourself, you need to determine the optimal R-value you need to keep your home warm in the wintertime, cool in the heat of summer, and energy-efficient all year long. Each inch of insulation provides between a 3 and an 8 R-value. The climate where you live plays a major role in what R-value you need and the price tag you might see in your insulation installation.

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.

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

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