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

Avatar for Expediant Environmental Solutions, LLC
Expediant Environmental Solutions, LLC
3.9(
438
)
Home Energy Audit

Serving Windham, NY and surrounding areas

Approved

In business since 1995

Free estimates

Emergency services offered

"Excellent experience from start to finish! The home energy audit showed me where I was losing heat and areas that needed attention. Getting the house sealed and getting blown in cellulose and an attic cap installed professionally is something I would recommend to any homeowner. Expediant energy came to install it soon after the initial estimate. which in this winters bitter cold temps is something I really appreciate. I Noticed the difference immediately. Anyone who is paying for heat and looking to improve their insulation should give these guys a call you won't regret it!"
Response time2 days
Response rate100%
13 neighbors recently requested a quote
A New Start Home Inspections
New to Angi
Home Energy Audit

Serving Windham, NY and surrounding areas

In business since 2015

Free estimates

We take great pride in our experience, expertise, quality, and customer service that we provide to meet the consumer's needs. It is our mission to provide excellent customer service from start to completion of a project. In order to understand the needs and expectations of our customers, we take great care to work and communicate with every customer in a personal and professional manner. Our reputation is based on service, safety, and quality, regardless of how large or small the job.

northshore pressure washing
New to Angi
Energy Audit - For BusinessHome Energy Audit

Serving Windham, NY and surrounding areas

In business since 2011

Free estimates

We are one of the largest energy consulting companies in the country. We offer Free Energy Forcasts to businesses across a wide variety of climate zones. When implemented, our recommendations can consistently save you 17-22% on your energy costs, in the first year. We offer a variety of products, from an all-inclusive fixed product, to a variable option and a hybrid. Call today to see what solutions we can offer you! References are available from very happy clients.

Avatar for 'R Factor Inc.'
'R Factor Inc.'
5.0(
2
)
Energy Audit - For BusinessHome Energy Audit

Serving Windham, NY and surrounding areas

In business since 2004

Free estimates

Credit card accepted

"R-Factor Insulation Company does very good work. They insulated my crawl space and did a wonderful job. The owner Mr. Knapp was very professional and came out and gave a free estimate on the work. The job estimate was right on the price with no cost over runs at the completion of the
job. I had other estimates that were much higher on the same work to be done."
Additional Photos
Recommended by100%of homeowners
Energy Efficiency Auditing FAQs, answered by experts

A good SEER rating for an HVAC system is typically between 15 and 20. However, minimum requirements vary by location; HVAC systems in northern states must have at least a 14 SEER rating, while those in southern states need a minimum of 15. For the highest possible efficiency, look for units with a SEER rating of 21 or higher. It's important to remember that a SEER rating represents the maximum efficiency a unit can achieve, not the level at which it will operate at all times.

Costs depend on pipe length, accessibility, and whether additional services are required.

No, it isn’t necessary to have energy-efficient windows. However, if you care about your energy bill and making your windows more energy efficient, fixing any heat, UV, or air transfer issues is an excellent way to lower your bills and keep your house cooler in the summer and warmer in the winter.

When combined with a substantial solar system, if you have enough Powerwalls, you could go off-grid and be energy independent. But remember, you'd need enough Powerwalls to power your whole home continuously because a single Powerwall can’t power large appliances for extended periods. One Powerwall is able to power an average-sized home's emergency circuits, lights, and outlets. To power large appliances, you likely need two or three Powerwalls.

They’ll use more electricity than the average upright vacuum, but not remarkably more. Most power units plug into a standard 120-volt outlet and don’t have significant power demands. You shouldn’t notice an increase in electricity bills. If you have any specific questions about energy costs, ask your installer as you examine purchase decisions. Larger power units will need more electricity for their suction levels.

The Windham, NY homeowners’ guide to energy efficiency auditing services

From average costs to expert advice, get all the answers you need to get your job done.