Top-rated energy efficiency auditors.

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There are 5 highly-rated local energy efficiency auditors.

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Find Energy efficiency auditors in Milford

Avatar for Modern Energy

Modern Energy

24 Rockdale Street
5.00(
3
)
Approved Pro

Modern Energy

24 Rockdale Street
5.00(
3
)
Approved Pro
Customers say: Quick response
Recommended by 100% of Angi customers
Recommended by 100% of HomeAdvisor customers
563 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

71 Whitney Street
4.54(
560
)
Approved Pro

Nicholson Plumbing Heating & Air Conditioning Inc

71 Whitney Street
4.54(
560
)
Approved Pro
Customers say: Super punctual
55 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 Endless Energy

Endless Energy

261 Cedar Hill Street Suite 100
4.87(
15
)
Approved Pro

Endless Energy

261 Cedar Hill Street Suite 100
4.87(
15
)
Approved Pro
Customers say: Quality work
Recommended by 93% of Angi customers
Recommended by 93% of HomeAdvisor customers
278 local quotes requested

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

100 Lamartine St
5.00(
1
)

Wattson Home Solutions

100 Lamartine St
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

130 Southbridge Rd
5.00(
5
)

Rycor HVAC

130 Southbridge Rd
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

Based Out Of
5.00(
10
)

EcoLifeSolar By SunPower

Based Out Of
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 -

1 Adams Place
5.00(
16
)

Sunrich Power -

1 Adams Place
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

Aurora Ave.
No reviews yet

RSS Solar

Aurora Ave.
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 Eco Insulators

Eco Insulators

837 Upper Union St
5.00(
9
)

Eco Insulators

837 Upper Union St
5.00(
9
)
Customers say: Quick response
Recommended by 100% of Angi customers
Recommended by 100% of HomeAdvisor customers

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


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

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Energy Efficiency Auditing questions, answered by experts

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.

There are a few ways to reduce your electricity bills if you use window AC units to keep cool. Set the unit temperature at least 1 degree higher than it is currently to reduce costs. Keep the unit clean for it to run efficiently. You may want to hire a window AC specialist near you to inspect the unit once a year and keep it in tip-top shape.

Homeowners may qualify for an HVAC tax credit if they install an ENERGY STAR®-certified HVAC system that exceeds the energy efficiency minimum standards:

  • Split-System AC: 16 SEER2

  • Packaged AC: 15.2 SEER2 and 11.5 EER2

  • Ducted Split Heat Pump: 15.2 SEER2, 7.8 HSPF2, and 11.7 EER2 

  • Packaged Heat Pump: 15.2 SEER2, 7.2 HSPF2, and 10.6 EER2

  • Mini-Split System: 16 SEER2, 9 HSPF2, and 12 EER2

You can claim up to 30% of the cost of the job, subject to maximums.

Blower door tests are measured in a few different ways, but the most popular are air changes per hour (ACH) and cubic feet of air (CFM) moving through the house per hour. A good ACH score is less than 2ACH, but 1ACH is better. This means the house experiences a total air change within 60 minutes (for 1ACH). For 2ACH, there’s a complete change every 30 minutes, and so on. CFM scores are similar in that a lower score means less air change, and therefore less leakage.

Yes, Tesla Powerwalls are worth the upfront costs, as you can recoup your investment within six to eight years. Plus, they provide peace of mind that you'll have power during a power outage, and, depending on the system you install, you can become energy-independent. While they may be more expensive than other solar power systems, they offer higher battery capacity and lifespan.

The Milford, 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.