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Best energy efficiency auditors near Oakham, MA

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Top-Rated Energy efficiency auditors in Oakham - Updated Nov 2026

Avatar for Green Collar
Green Collar
4.6(
37
)
Home Energy AuditEnergy Audit - For Business

Serving Oakham, MA and surrounding areas

Approved

In business since 2000

Free estimates

Warranties offered

"Great experience from start to finish. Gave good advice, scheduled and completed the work promptly, and we love our new mini-split. The customer service is great and they have quickly helped us with our follow-up questions and paperwork for our rebate. To top it off, their prices are really reasonable!"
Net and Blow
Ceiling net and blow
Truck in Driveway
Knee Wall Slope 2" Board
Attic Open Blow Cellulose

+2

Response time2 days
Response rate86%
49 neighbors recently requested a quote
Avatar for Green Collar
Green Collar
4.6(
37
)
Energy Audit - For BusinessHome Energy Audit

Serving Oakham, MA and surrounding areas

Approved

In business since 2000

Free estimates

Credit card accepted

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. \n \nWhat 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.

New Construction
New Construction
New Construction
Attic and Knee wall Retro
Attic and Knee wall Retro

+2

1 neighbors recently requested a quote
Recommended by100%of homeowners
Avatar for Gabriel Hahn
Gabriel Hahn
New to Angi
Home Energy Audit

Serving Oakham, MA and surrounding areas

Approved

Emergency services offered

Small jobs welcome

Credit card accepted

I conduct energy audit tests for homes, whether they are colonial or brand new construction. I can recommend you various forms of weathersealant, thermal wrappings, and storm window techniques, saving you thousands in the form of long-term heat insulation tech-forward solutions.

Avatar for The Energy Monster, Inc.
The Energy Monster, Inc.
5.0(
6
)
Home Energy Audit

Serving Oakham, MA and surrounding areas

In business since 2011

Free estimates

Credit card accepted

"Great people. They put down cloth to protect the floors from their boots. They tested the house before they started the work. They showed me results and explained them. They did the work, tested the house again and showed me the results again. BIG DIFFERENCE! They cleaned up everything afterwards, showed me and explained everything they had done and told me to call if I ever had any questions. Excellent!!"
Untitled Gallery 1
Recommended by100%of homeowners
Avatar for Commonwealth Energy MA
Commonwealth Energy MA
4.5(
32
)
Energy Audit - For BusinessHome Energy Audit

Serving Oakham, MA and surrounding areas

In business since 2017

Free estimates

Credit card accepted

"Words can’t explain how excellent of a consultant Julian is ! I was very indecisive about solar until Julian gave me all the information I needed on behalf of solar while saving me a ton of money. I reffed my whole family to him and if anyone is looking to go solar or get information on solar definitely contact Julian ! his personality is unreal making you feel more like family. I’m glad to be apart of Commonwealth energy !"
Methuen installation
Methuen installation
Methuen installation
Additional Photos
Additional Photos

+5

Recommended by84%of homeowners
Avatar for The Energy Monster MA, Inc.
The Energy Monster MA, Inc.
4.2(
14
)
Home Energy Audit

Serving Oakham, MA and surrounding areas

In business since 2003

Free estimates

Credit card accepted

"These guys were fantastic! Mike really knows his heat pumps and it showsâ he was always available via email when I had a question, he walked us through the entire process for applying for the state heat pump rebates, and we couldnâ t be happier with the system one year in. Because of our Initial positive experience with Mike, we also hired Energy Monster to do our solar panel installation. Top notch, LOCAL company!"
Mitsubishi Ductless Mini Splits
Holland, MA (5.3KW)
Marlboro,MA (7.8KW)
Energy Audits in MA
Response time2 days
Recommended by100%of homeowners
Avatar for R&J Solar LLC
R&J Solar LLC
5.0(
2
)
Energy Audit - For BusinessHome Energy Audit

Serving Oakham, MA and surrounding areas

In business since 2022

Free estimates

Credit card accepted

We provide residential and commercial solar power options, and provide support services for industry partner companies. We offer no cost consultations and $0 down financing. Please contact our office for a consultation at (931)922-8258.

Additional Photos
Additional Photos
Additional Photos
Additional Photos
Additional Photos

+3

Recommended by100%of homeowners
Avatar for American Energy Revolution
American Energy Revolution
5.0(
1
)
Home Energy Audit

Serving Oakham, MA and surrounding areas

In business since 2022

Free estimates

Emergency services offered

American Energy Revolution is committed to excellence in every aspect of our business. We uphold a standard of integrity bound by fairness, honesty, and personal responsibility. Our distinction is the quality of service we bring to our customers. Accurate knowledge of our trade combined with ability is what makes us true professionals. Above all, we are watchful of our customers' interests, and make their concerns the basis of our business.

25 Years Savings
Locked in 25yr kWh rate
Solar panels
Solar panels
Response time8 hrs
Showing 1-10 of 21
Energy Efficiency Auditing FAQs, answered by experts

Setting your AC unit to 78 degrees can, indeed, help you save energy. In fact, according to experts, every degree you turn the unit up could save you between 1% and 3% on your energy bills. That said, turning your unit off entirely while you’re out might actually be less efficient than keeping it on at a higher temperature. Why? The unit will need to work extra hard to cool the house back off again after all those hot hours. 

There are a couple of ways you can save on the cost of your home energy audit. First, find out if you qualify for programs like the Department of Energy’s Weatherization Assistance Program for low-income households. Next, check with your local utility company to find out if you qualify for any local rebate programs to offset the cost of this helpful service.

Wood windows fall in the middle of the window frame materials when it comes to energy efficiency. They’re more insulating than aluminum and vinyl, but they aren’t as efficient as fiberglass or composite frames. If you love the look and lifespan of wood windows and want to maximize efficiency, you can upgrade to double-pane or triple-pane glass and consider window tinting and low-emissivity (low-E) coatings to minimize heat transfer.

When installing a new furnace, it's a good time to consider other projects that can enhance your home's energy efficiency. A great first step is to get a home energy audit, which will identify areas for improvement. Common recommendations include sealing or replacing windows and adding insulation to the attic. These upgrades can help you save money on monthly utility costs. You might also consider installing a smart thermostat to make heating your home more convenient and efficient.

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.

The Oakham, 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.