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Home energy auditors in Sudbury

Avatar for Green Collar

Green Collar

48 Lamb St
4.95(
28
)
•Approved Pro

Green Collar

48 Lamb St
4.95(
28
)
•Approved Pro
Customers say: Terrific value
Recommended by 100% of Angi customers
Recommended by 100% of HomeAdvisor customers
38 local quotes requested

Established in 2014, Green Collar is a leading energy efficiency solutions provider for businesses and homeowners. We help our clients conserve energy, improve comfort, and save money through increased energy efficiencies. What sets us apart is our unwavering commitment to exceptional quality, backed by over two decades of collective industry expertise within our team. Our comprehensive range of services includes home energy assessments, home insulation and weatherization, as well as HVAC services. We offer a complimentary home energy assessment to accurately pinpoint areas of inefficiency within your home. Subsequently, our experienced energy consultants will offer personalized recommendations to effectively address and resolve any identified issues.

"Jeremiah and his crew did a fantastic job. They arrived on time, worked very hard in the small hot attic space, did not waste time and were very professional. Jeremiah explained from start to finish what the job entailed. When the job was completed, Jeremiah explained all that was done and wanted to make sure we were completely satisfied before leaving. They also cleaned up and did not leave a mess. We are very pleased with Green Collar and Jeremiah and his crew!"

Susan P on September 2024

Established in 2014, Green Collar is a leading energy efficiency solutions provider for businesses and homeowners. We help our clients conserve energy, improve comfort, and save money through increased energy efficiencies. What sets us apart is our unwavering commitment to exceptional quality, backed by over two decades of collective industry expertise within our team. Our comprehensive range of services includes home energy assessments, home insulation and weatherization, as well as HVAC services. We offer a complimentary home energy assessment to accurately pinpoint areas of inefficiency within your home. Subsequently, our experienced energy consultants will offer personalized recommendations to effectively address and resolve any identified issues.

"Jeremiah and his crew did a fantastic job. They arrived on time, worked very hard in the small hot attic space, did not waste time and were very professional. Jeremiah explained from start to finish what the job entailed. When the job was completed, Jeremiah explained all that was done and wanted to make sure we were completely satisfied before leaving. They also cleaned up and did not leave a mess. We are very pleased with Green Collar and Jeremiah and his crew!"

Susan P on September 2024

Avatar for Mighty Dog Roofing Metro West Boston

Mighty Dog Roofing Metro West Boston

50 Dedham Ave
5.00(
5
)
•Approved Pro

Mighty Dog Roofing Metro West Boston

50 Dedham Ave
5.00(
5
)
•Approved Pro
Customers say: Quick response
Recommended by 100% of Angi customers
Recommended by 100% of HomeAdvisor customers
142 local quotes requested

Our Mission at Mighty Dog Roofing is to be an industry changer, leading the industry with integrity, finding innovative ways to exceed the expectations of our clients and the communities we serve, and providing a customized experience each and every time we care for their home. At Mighty Dog Roofing, we pledge superior service to our customers through excellent communication and customer service. How do we accomplish that? Courteous customer education, community service, and the highest level of integrity and ethics. Mighty Dog Roofing is endorsed by the nation's top manufacturers and distributors, offering our customers the best and most innovative products and services in the industry.

"Anthony and the Mighty Dog team were excellent! Super communicative, fantastic prices, and excellent workmenship. Anthony really cares about final touches to bring the project over the top. Mighty dog was able to put the final touches to our exterior remodel and really wrap it up the right way. I would highly recommend the Mightly Dog team to my friends and family. I will also definitely be doing business with them again!"

Ben Y on June 2021

Our Mission at Mighty Dog Roofing is to be an industry changer, leading the industry with integrity, finding innovative ways to exceed the expectations of our clients and the communities we serve, and providing a customized experience each and every time we care for their home. At Mighty Dog Roofing, we pledge superior service to our customers through excellent communication and customer service. How do we accomplish that? Courteous customer education, community service, and the highest level of integrity and ethics. Mighty Dog Roofing is endorsed by the nation's top manufacturers and distributors, offering our customers the best and most innovative products and services in the industry.

"Anthony and the Mighty Dog team were excellent! Super communicative, fantastic prices, and excellent workmenship. Anthony really cares about final touches to bring the project over the top. Mighty dog was able to put the final touches to our exterior remodel and really wrap it up the right way. I would highly recommend the Mightly Dog team to my friends and family. I will also definitely be doing business with them again!"

Ben Y on June 2021

Avatar for Diamond Construction Inc

Diamond Construction Inc

116 Cochituate Rd
4.55(
89
)
•Approved Pro

Diamond Construction Inc

116 Cochituate Rd
4.55(
89
)
•Approved Pro
Customers say: Quality work
1252 local quotes requested
20 years of experience

Diamond Construction, Inc. has built a reputation on quality with honesty and integrity. We employ only the highest trained, professional roofers for our team. We partner with the highest quality shingle manufacturers, and we hand-nail all roofs to ensure quality installation as well. At the end of every project, our supervisor will do an inspection with the homeowner to ensure their satisfaction. At Diamond Construction our mission is to ensure peace of mind for each customer through exceptional service. We work hard to exceed our customers' expectations. Our quality and experience combined with our strong work ethic are only some of the reasons why we maintain an A+ rating on the BBB and Home Advisor - Pro. We are certified by GAF and CertainTeed. 100% Customer Satisfaction Guaranteed. Licensed, Insured, and Accredited Roofers. Convenient Evening & Weekend Appointments. Financing available. Affordable Roofing & Remodeling Quality. New England Premier Roofing Contractor. Additional Email at: office@diamondconstructionma.com

"Good job. Quick and professional"

Scott C on July 2024

Diamond Construction, Inc. has built a reputation on quality with honesty and integrity. We employ only the highest trained, professional roofers for our team. We partner with the highest quality shingle manufacturers, and we hand-nail all roofs to ensure quality installation as well. At the end of every project, our supervisor will do an inspection with the homeowner to ensure their satisfaction. At Diamond Construction our mission is to ensure peace of mind for each customer through exceptional service. We work hard to exceed our customers' expectations. Our quality and experience combined with our strong work ethic are only some of the reasons why we maintain an A+ rating on the BBB and Home Advisor - Pro. We are certified by GAF and CertainTeed. 100% Customer Satisfaction Guaranteed. Licensed, Insured, and Accredited Roofers. Convenient Evening & Weekend Appointments. Financing available. Affordable Roofing & Remodeling Quality. New England Premier Roofing Contractor. Additional Email at: office@diamondconstructionma.com

"Good job. Quick and professional"

Scott C on July 2024

Avatar for Betho Construction

Betho Construction

4.56(
9
)
•Approved Pro

Betho Construction

4.56(
9
)
•Approved Pro
Customers say: Quality work
1289 local quotes requested
Free onsite estimate

We specialize in all phases of roofing, siding, and gutters! We have industry experience since 2006. We guarantee your satisfaction, and we won’t leave until the job is done right. We pride ourselves on the quality work we provide, while delivering great customer service! Check out all the services we offer below and call -- or-- click to schedule a free estimate today! Properly licensed and fully insured

"Luis came to our home to give us a quote for replacing siding and windows. He seemed very pleasant and thorough. He spent a considerable time measuring our windows and then promised a quote in 3 or 4 days. Weeks later, we haven't heard back from him. No response to text or voicemail."

William S on April 2024

We specialize in all phases of roofing, siding, and gutters! We have industry experience since 2006. We guarantee your satisfaction, and we won’t leave until the job is done right. We pride ourselves on the quality work we provide, while delivering great customer service! Check out all the services we offer below and call -- or-- click to schedule a free estimate today! Properly licensed and fully insured

"Luis came to our home to give us a quote for replacing siding and windows. He seemed very pleasant and thorough. He spent a considerable time measuring our windows and then promised a quote in 3 or 4 days. Weeks later, we haven't heard back from him. No response to text or voicemail."

William S on April 2024

Avatar for NMTI-General Construction

NMTI-General Construction

35 Village Rd Suite 100
4.89(
36
)
•Approved Pro

NMTI-General Construction

35 Village Rd Suite 100
4.89(
36
)
•Approved Pro
Customers say: True professional
Recommended by 97% of Angi customers
Recommended by 97% of HomeAdvisor customers
1379 local quotes requested

As a commercial and residential general contracting company with 24 years of experience, offering fiber cement siding, vinyl siding, wood shake siding. Roofing; shingle, flat , slate, metal. Carpentry, framing, finish carpentry, chimney, masonry, repairs and more, we take pride in our projects and guarantee fast, reliable, and high quality service. Our company is fully licensed, and OSHA certified. We do replacement, new installation, and roof repairs. Please contact us and get a quote for your next job.

"The guys showed up with the materials and tools needed to do the job, problem solved as they figured out what to fix, got it done, and cleaned everything up. Nice and respectful - no mess. Would hire again - highly recommend"

Justin M on July 2025

As a commercial and residential general contracting company with 24 years of experience, offering fiber cement siding, vinyl siding, wood shake siding. Roofing; shingle, flat , slate, metal. Carpentry, framing, finish carpentry, chimney, masonry, repairs and more, we take pride in our projects and guarantee fast, reliable, and high quality service. Our company is fully licensed, and OSHA certified. We do replacement, new installation, and roof repairs. Please contact us and get a quote for your next job.

"The guys showed up with the materials and tools needed to do the job, problem solved as they figured out what to fix, got it done, and cleaned everything up. Nice and respectful - no mess. Would hire again - highly recommend"

Justin M on July 2025

Avatar for Long Home Products

Long Home Products

300 Myles Standish Blvd
2.68(
22
)
•Approved Pro

Long Home Products

300 Myles Standish Blvd
2.68(
22
)
•Approved Pro
4768 local quotes requested
80 years of experience

With over 70 years of experience in home improvement, Long Home Products is the industry-leading company you can trust to give you peace of mind. We are a locally owned and operated company that values honesty and integrity and treats your home as if it were our own. We are experts in all aspects of roofing, bathroom, window and door projects. We pride ourselves on the quality of our work as well as our commitment to outstanding results. We look forward to building lasting relationships and guarantee your satisfaction!

"I hired Long Roofing Products to replace my roof. From the beginning the sales man lied to me, telling me that they could take off my Gutter Helmets and put them back on correctly. This was lie #1. They have null and voided the warranty of my gutter helmets, because they were not supposed to touch them and according to Gutter Helmets all the roofers know this. lie #2 there were missing pieces on the ends of my gutter helmets to prevent the birds from getting into the gutters. The salesman told me they would order the piece from Gutter Helmets and replace it. This was never done. I have contacted them several times and they continue to tell me they will fix it and they never do. I would NEVER recommend them, I would only tell you NOT to use them. They talk a big game but never follow thru with their promise's."

Debbie B on August 2025

With over 70 years of experience in home improvement, Long Home Products is the industry-leading company you can trust to give you peace of mind. We are a locally owned and operated company that values honesty and integrity and treats your home as if it were our own. We are experts in all aspects of roofing, bathroom, window and door projects. We pride ourselves on the quality of our work as well as our commitment to outstanding results. We look forward to building lasting relationships and guarantee your satisfaction!

"I hired Long Roofing Products to replace my roof. From the beginning the sales man lied to me, telling me that they could take off my Gutter Helmets and put them back on correctly. This was lie #1. They have null and voided the warranty of my gutter helmets, because they were not supposed to touch them and according to Gutter Helmets all the roofers know this. lie #2 there were missing pieces on the ends of my gutter helmets to prevent the birds from getting into the gutters. The salesman told me they would order the piece from Gutter Helmets and replace it. This was never done. I have contacted them several times and they continue to tell me they will fix it and they never do. I would NEVER recommend them, I would only tell you NOT to use them. They talk a big game but never follow thru with their promise's."

Debbie B on August 2025

Avatar for Willard Co

Willard Co

1201 East St
4.62(
158
)
•Approved Pro

Willard Co

1201 East St
4.62(
158
)
•Approved Pro
Customers say: Quality work
819 local quotes requested
152 years of experience

The Willard Company is a full service residential and commercial roofing company specializing in asphalt, copper, slate, tile, and wood (cedar) shingles, and rubber roofing. We install all types of siding. Parker M. Willard Jr., our 5th generation family member, is our General Manager with over 30 years of experience in the business. The Willard Company is fully licensed, trained and certified to give you the best products and workmanship at a fair and reasonable price. We still stand behind our workmanship longer than anyone in the industry and we pride ourselves on our service AFTER the job is complete. Massachusetts Home Improvement Contractor's Registration #106642. Construction Supervisor's License #085926.

"Excellent service. And quick issue resolution. I would definitely hire again"

Naeemah E on May 2022

The Willard Company is a full service residential and commercial roofing company specializing in asphalt, copper, slate, tile, and wood (cedar) shingles, and rubber roofing. We install all types of siding. Parker M. Willard Jr., our 5th generation family member, is our General Manager with over 30 years of experience in the business. The Willard Company is fully licensed, trained and certified to give you the best products and workmanship at a fair and reasonable price. We still stand behind our workmanship longer than anyone in the industry and we pride ourselves on our service AFTER the job is complete. Massachusetts Home Improvement Contractor's Registration #106642. Construction Supervisor's License #085926.

"Excellent service. And quick issue resolution. I would definitely hire again"

Naeemah E on May 2022

Avatar for Pheasant Hill Home Inspections

Pheasant Hill Home Inspections

21 Angelica Dr
4.91(
47
)
•Approved Pro

Pheasant Hill Home Inspections

21 Angelica Dr
4.91(
47
)
•Approved Pro
Customers say: Super punctual
Recommended by 97% of Angi customers
Recommended by 97% of HomeAdvisor customers
57 local quotes requested

A home inspection is one of the most critical parts of a real estate transaction. The role of the home inspector is to educate purchasers on the biggest transaction in their lives. Prospective home buyers depend on the home inspector to put home and building criteria into proper perspective so that an informed decision can be made. MA License #787 - ASHI Member.

"Jason showed up early and was extremely detailed on our home inspection. He completed the report with photos of the entire property the same day. He also outlined tasks that need to be done in short and long term periods. We had a really great experience with him and would recommend him to anyone!"

Jackie A on June 2025

A home inspection is one of the most critical parts of a real estate transaction. The role of the home inspector is to educate purchasers on the biggest transaction in their lives. Prospective home buyers depend on the home inspector to put home and building criteria into proper perspective so that an informed decision can be made. MA License #787 - ASHI Member.

"Jason showed up early and was extremely detailed on our home inspection. He completed the report with photos of the entire property the same day. He also outlined tasks that need to be done in short and long term periods. We had a really great experience with him and would recommend him to anyone!"

Jackie A on June 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
3228 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 Power Home Remodeling

Power Home Remodeling

201 Jones Rd
4.60(
835
)
•Approved Pro

Power Home Remodeling

201 Jones Rd
4.60(
835
)
•Approved Pro
Customers say: Quality work
4332 local quotes requested
33 years of experience

As the nation’s largest full-service exterior home remodeler, we are backed by over 1,000+ Angi Super Service awards and more than one million happy customers. Why? Because we treat each job as an audition. An opportunity to prove ourselves to you. And the results speak for themselves. So make your home all it was meant to be with our unrivaled exterior services. Contact us today for a free, no obligation estimate on replacement windows, roofing, siding, doors, or attic insulation.

"This company completely took advantage of my MIL with high pressure sales. She did not need her roof redone yet they convinced her she needed it and 30k$ later she has a new roof she didn't need or want. You should be ashamed of yourselves."

Tim O on September 2025

As the nation’s largest full-service exterior home remodeler, we are backed by over 1,000+ Angi Super Service awards and more than one million happy customers. Why? Because we treat each job as an audition. An opportunity to prove ourselves to you. And the results speak for themselves. So make your home all it was meant to be with our unrivaled exterior services. Contact us today for a free, no obligation estimate on replacement windows, roofing, siding, doors, or attic insulation.

"This company completely took advantage of my MIL with high pressure sales. She did not need her roof redone yet they convinced her she needed it and 30k$ later she has a new roof she didn't need or want. You should be ashamed of yourselves."

Tim O on September 2025

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FAQs for home energy audit projects in Sudbury, MA

To prepare for a home energy audit, begin by preparing your space. Clear any obstructions around the attic, basement, ducts, crawl space, appliances, windows, and doors. Gather all your energy bills from the last year and information on home upgrades if you’ve made any changes. If you’ve previously had an audit done, include that information as well.

Finally, be prepared to discuss any questions or concerns you have. If you’ve noticed a rise in your energy bills, hot or cold areas in your home, or unusual sounds from ducts or appliances, make a list to discuss with your auditor.

How often you should get an energy audit depends on the age and condition of your home. New homes with no issues are recommended to get an audit every five years, while older homes should audit every two to three years. If you’ve noticed any changes to your energy bills or other areas of concern, you should get an audit as soon as possible. It’s also a good idea to conduct an audit if you’ve made changes or upgrades to your home, such as installing a new furnace, windows, or doors.

An energy audit takes three to four hours to complete. Your auditor sets up testing equipment, conducts an exhaustive walk‑through inspection, and performs all required evaluations to identify energy loss points. The audit follows a systematic review that includes visual assessments, mechanical tests, and detailed documentation, resulting in a precise report of improvement recommendations.

You can schedule a home energy audit any time of the year—it all depends on what's convenient for you. That said, timing it right can help you tackle issues before they impact your comfort and bills. If you live in a colder climate and want to avoid high heating costs in the winter, getting an audit in the summer allows you to make improvements before the temperature drops. On the contrary, if hot summers are your concern, a spring audit can help you stay cool and save on air conditioning.

To find a qualified home energy auditor, start by searching for local energy auditors with great reviews and recognized certifications like those from the Building Performance Institute (BPI). These credentials ensure they're qualified and can help you qualify for rebates. Don't hesitate to ask about their audit methods and schedule a consultation to see if they're a good fit for your needs. Doing some research upfront helps you get top-notch service and maximize your energy efficiency.

Once you have your energy audit report, it's time to take action. Review the recommendations and prioritize the upgrades that make the most sense for your home and budget. Reach out to experienced pros to get quotes and discuss how they can help. By making these improvements, you'll boost your home's energy efficiency, lower your utility bills, and enjoy a more comfortable living space.