Get matched with top energy efficiency auditors in Northfield, MA

•Approved Pro

Green Collar

4.95(

Customers say: Terrific value

•Approved Pro

Recommended by 100% of Angi customers

25 years of experience

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

"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

Northeast Solar

4.94(

Northeast Solar

4.94(

Customers say: Quality work

Recommended by 98% of Angi customers

No fees for site evaluation, design work or quotation. Complete analysis of solar potential. Additional email - [email protected]. Award winning.

"They take care of everything, all the paperwork, permits,etc. This company is very professional and they were always communicating with us throughout the process."

Bonnie S on June 2019

No fees for site evaluation, design work or quotation. Complete analysis of solar potential. Additional email - [email protected]. Award winning.

"They take care of everything, all the paperwork, permits,etc. This company is very professional and they were always communicating with us throughout the process."

Bonnie S on June 2019

Energy Protectors

Energy Protectors

Recommended by 100% of Angi customers

The founders of Energy Protectors recognized the worldwide shift towards greener, more energy efficient lifestyles and wanted to be a part of this positive change across the globe. Partnering with Mass Save has allowed Energy Protectors to offer quality insulation services for a fraction of the cost (75% DISCOUNT!). We are proud to not only help you save money, increase the value of your property, and increase the comfort of your home, but also to help make the world a greener and healthier place.

"The work was great, the team was fantastic, prompt and professional."

Wes S on March 2020

"The work was great, the team was fantastic, prompt and professional."

Wes S on March 2020

MacFarlane Energy

4.62(

133

MacFarlane Energy

4.62(

133

Customers say: Super punctual

Recommended by 93% of Angi customers

Customer convenience is a top priority at MacFarlane Energy. We simplify our customers' lives by serving as a one-stop shop for heating, air conditioning and home comfort. In addition to delivering heating oil and maintaining the equipment in your home or business, we provide virtually every related service: indoor air quality, duct cleaning, conservation advice, home energy audits, replacing water heaters and oil tanks, installation of high-efficiency equipment, plus more. We also install radiant heat, snow-melt systems, pool heaters, solar hot water systems, and geothermal systems.

"Review for Thomas Coolberth on July 5, 2025. Had another leak on the master board of my OB 2000. Thomas installed half a board until the master board could be replaced. There is antifreeze in the water which has to be replaced. Thomas was very friendly, explaining the problem in layman’s terms and; quickly offered a temporary fix of the problem during July 4 th weekend. Highly recommend his service."

Carl G on July 2025

"Review for Thomas Coolberth on July 5, 2025. Had another leak on the master board of my OB 2000. Thomas installed half a board until the master board could be replaced. There is antifreeze in the water which has to be replaced. Thomas was very friendly, explaining the problem in layman’s terms and; quickly offered a temporary fix of the problem during July 4 th weekend. Highly recommend his service."

Carl G on July 2025

Sunrich Power -

Sunrich Power -

Recommended by 93% of Angi 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

"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

EnviroHealth Consulting Inc.

4.71(

EnviroHealth Consulting Inc.

4.71(

31 years of experience

EnviroHealth Consulting, Inc., offers a house-apartment-office screening inspection relating to health concerns linked with environmental issues - for persons with asthmatic or allergic reactions, sleep difficulties, inflammatory conditions, cancer, etc., - and for well individuals and concerned parents who want peace of mind that their homes are healthy.

SolarFlair Energy, Inc.

4.30(

SolarFlair Energy, Inc.

4.30(

Customers say: True professional

19 years of experience

SolarFlair works with businesses and homeowners that are interested to reduce their utility bills and their carbon footprint by converting to solar power. We are a licensed and certified solar engineering and design firm with over 10 years of experience in the industry. We do not use subcontractors and have over 200 satisfied clients that are happy to share their SolarFlair experience.

"The original installation process went very smoothly, however,, A few years after the panels were installed, a leak developed at one of the punctures for the panel mounts. we first called back the roofer to see if the leak was not due to the solar mounts, but he confirmed that the leak was indeed right under one of the mounts. SolarFlair came to take a look and applied a product to the interior of the roof which did nothing to stop the leak, they came back and applied roof tar on the outside which again did not stop the leak. this process has been very frustrating for the lack of communication, the slowness and incomplete response to the issue. They've closed out the work each time they've done something before veryifying that the leak has been fixed (it still has not been fixed). The company had taken over 9 months from our inital call, and we still have a leaking roof. we have very little communication from SolarFlair as to what actions they have taken, and what next they could do. it seems clear that part of the roof needs to be replaced to fix the leak."

Lori F on August 2023

"The original installation process went very smoothly, however,, A few years after the panels were installed, a leak developed at one of the punctures for the panel mounts. we first called back the roofer to see if the leak was not due to the solar mounts, but he confirmed that the leak was indeed right under one of the mounts. SolarFlair came to take a look and applied a product to the interior of the roof which did nothing to stop the leak, they came back and applied roof tar on the outside which again did not stop the leak. this process has been very frustrating for the lack of communication, the slowness and incomplete response to the issue. They've closed out the work each time they've done something before veryifying that the leak has been fixed (it still has not been fixed). The company had taken over 9 months from our inital call, and we still have a leaking roof. we have very little communication from SolarFlair as to what actions they have taken, and what next they could do. it seems clear that part of the roof needs to be replaced to fix the leak."

Lori F on August 2023

Precision Decisions LLC

Precision Decisions LLC