Get matched with top energy efficiency auditors in Mendon, MA
There are 6 highly-rated local energy efficiency auditors.
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Verified Reviews for Energy Efficiency Auditing pros in Mendon, MA
*The Angi rating for Energy Efficiency Auditing companies in Mendon, 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 Mendon, 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 April 26, 2025
Energy efficiency auditors in Mendon
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
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
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
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
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.
Sunrich ⚡︎ Power - Massachusetts' #1 Rated Solar Energy & Electric Supply Company (2022-2023) Since 2017, We've delivered premium energy-saving solutions to Massachusetts homeowners and businesses. We pride ourselves on integrity and excellence in both solar installations and energy supply services. As MA's leading solar installer, We install on all roof types : shingle asphalt, rubber, metal, wood shingle and specialty *slate. We exclusively use elite-rated equipment, manufactured here in USA : Tier 1 - premium solar modules- QCells®️, paired with Enphase®️ IQ8 series - micro inverters with Enlighten®️. Our comprehensive solar package includes a performance and production guarantee, 25-Year Comprehensive Warranty, Low light & extreme weather technology certifications, with expert installation craftsmanship. For clients seeking immediate savings without solar, we offer Massachusetts' most competitive electric supply rates for homes and businesses. Serving all of New England with a focus on Massachusetts, our mission is simple: Empower people through energy independence and savings. Free Energy Consultation Available: Schedule your preferred meeting format - In-Home, Phone, or Virtual Contact us today to learn how we can reduce your home or business's energy costs through solar installation or our low fixed electric rates.
"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
Sunrich ⚡︎ Power - Massachusetts' #1 Rated Solar Energy & Electric Supply Company (2022-2023) Since 2017, We've delivered premium energy-saving solutions to Massachusetts homeowners and businesses. We pride ourselves on integrity and excellence in both solar installations and energy supply services. As MA's leading solar installer, We install on all roof types : shingle asphalt, rubber, metal, wood shingle and specialty *slate. We exclusively use elite-rated equipment, manufactured here in USA : Tier 1 - premium solar modules- QCells®️, paired with Enphase®️ IQ8 series - micro inverters with Enlighten®️. Our comprehensive solar package includes a performance and production guarantee, 25-Year Comprehensive Warranty, Low light & extreme weather technology certifications, with expert installation craftsmanship. For clients seeking immediate savings without solar, we offer Massachusetts' most competitive electric supply rates for homes and businesses. Serving all of New England with a focus on Massachusetts, our mission is simple: Empower people through energy independence and savings. Free Energy Consultation Available: Schedule your preferred meeting format - In-Home, Phone, or Virtual Contact us today to learn how we can reduce your home or business's energy costs through solar installation or our low fixed electric rates.
"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
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.
We're a leading Contractor and have served the Central Massachusetts area since 2021. We have the experience and dedication to get the job done right! Eco Insulators Specializes in spray foam, cellulose, fiberglass, and poly-iso insulation. We have experience tackling various residential, commercial, and industrial projects. Our company's guaranteed quality and customer service are 5 stars. We're fully licensed, insured, and compliant with all local, state, and federal guidelines. We now offer bathrooms, kitchens, and basement renovations. Want a new deck, or shed? We got you covered. We guarantee your satisfaction and won't leave until the job is done right. We pride ourselves on our quality work while delivering excellent customer service!
"I am very happily with the results."
Jane S on October 2023
We're a leading Contractor and have served the Central Massachusetts area since 2021. We have the experience and dedication to get the job done right! Eco Insulators Specializes in spray foam, cellulose, fiberglass, and poly-iso insulation. We have experience tackling various residential, commercial, and industrial projects. Our company's guaranteed quality and customer service are 5 stars. We're fully licensed, insured, and compliant with all local, state, and federal guidelines. We now offer bathrooms, kitchens, and basement renovations. Want a new deck, or shed? We got you covered. We guarantee your satisfaction and won't leave until the job is done right. We pride ourselves on our quality work while delivering excellent customer service!
"I am very happily with the results."
Jane S on October 2023
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
N&T Mechanical is a family & Veteran owned company who has been in business since 2007. N&T Mechanical is a full service HVAC/Plumbing and Mechanical contractor specializing in Commercial & Residential Service and System Installations.
"It went very well they were very professional and on time and they have a fair price."
stephen P on November 2020
N&T Mechanical is a family & Veteran owned company who has been in business since 2007. N&T Mechanical is a full service HVAC/Plumbing and Mechanical contractor specializing in Commercial & Residential Service and System Installations.
"It went very well they were very professional and on time and they have a fair price."
stephen P on November 2020
Energy efficiency auditing services FAQs
An energy audit costs about $420 on average, ranging from $100 to $2,250, depending on the size of your home, property, location, and the tests the auditor needs to perform. Keep in mind that the 2022 Inflation Reduction Act’s Energy Efficient Home Improvement credit covers up to $150 of home energy audit costs. Common energy audit tests include:
Blower door test: $350
Duct testing: $100
HERS test: $375
HERS certification: $200
Infrared imaging: $200
To find a reputable energy auditor, find a local company that offers energy audit services. Research the company’s reviews, methods, and certifications to find a reliable professional in your area. The most reputable energy audit companies are HEP-certified by the Building Performance Institute (BPI). Be sure to check our state licensing tool to review the local energy auditor guidelines to ensure you’re hiring a certified professional.
The difference between an energy auditor and a home inspector is primarily in the purpose of the inspection. The energy auditor conducts tests in your home to determine the energy efficiency levels in areas like windows, insulation, and doorways. The auditor then makes recommendations for ways to improve a home’s energy efficiency.
A home inspector examines various structures of your home to determine that everything is up to code and gauge the condition of features like the roof, foundation, HVAC, and electrical. The home inspector reports on the overall home and makes repair recommendations.
Typically, a local home energy auditor is responsible for performing energy audits. A home energy auditor will conduct one of three energy audits designed by the American Society of Heating, Refrigerating, and Air-Conditioning Engineers (ASHRAE) to determine the energy efficiency of your home. The auditor often provides analysis that can help guide changes and improvements to your home for better energy efficiency, giving recommendations as necessary.
The three levels of home energy audits include:
Level 1: Review of your energy bills and home for signs of energy inefficiency and areas for improvement. The average cost range is $0.08 to $0.12 per square foot.
Level 2: A level 2 ASHRAE energy audit costs $0.12 and $0.35 per square foot. In-depth analysis of your energy usage and provides a report of cost-saving changes.
Level 3: Comprehensive analysis and detailed recommendations for ways to improve your home’s energy efficiency. A level 3 audit costs about $0.36 to $0.50 per square foot.
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