Top-rated energy efficiency auditors.

Get matched with top energy efficiency auditors in Cornell, WI

Enter your zip and get matched with up to 5 pros

Need a pro for your energy efficiency auditing project in Cornell, WI?

Select your specific project to find the pro for you.

Verified Reviews for Energy Efficiency Auditing pros in Cornell, WI

*The Angi rating for Energy Efficiency Auditing companies in Cornell, WI is a rating based on verified reviews from our community of homeowners who have used these pros to meet their Energy Efficiency Auditing needs.

*The HomeAdvisor rating for Energy Efficiency Auditing companies in Cornell, WI is a rating based on verified reviews from our community of homeowners who have used these pros to meet their Energy Efficiency Auditing needs.

Last update on February 25, 2026

Find Energy efficiency auditors in Cornell

Avatar for Blue Hills Roofing & Construction LLC
Blue Hills Roofing & Construction LLC
4.0(
43
)
Energy Audit - For BusinessHome Energy Audit

Serving Cornell, WI and surrounding areas

In business since 2004

Credit card accepted

"They did a magnificent job of installation and the clean-up was perfect. They removed the old roof quickly, made sure the roof boards were in good shape and put the new roof on in a little over 1 day. They were careful around my plants. We even were able to get some money back for bad shingles that were used on our old roof and the best part was they did all the paperwork!! When they came over to bid the job they were very professional, had a folder with all the information put together with different roofs in the area we could look at before we made our final decision. I highly recommend them to anyone looking for a new roof!!
"
Additional Photos
Additional Photos
Additional Photos
Additional Photos
Additional Photos

+8

Recommended by85%of homeowners
Request Quote
Energy Efficiency Auditing questions, answered by experts

Yes, pros suggest units with high EER ratings for energy savings.

Window AC units use a fair amount of electricity, but significantly less than central AC systems. Because they are more energy-efficient for cooling individual rooms or small spaces, their usage is comparatively low. On average, a window AC unit consumes between 500 and 1,400 watts, while a central AC system uses over 3,500 watts—meaning a window unit uses about one-third of the energy. This typically translates to a monthly running cost of $15 to $40, although this can vary depending on external factors.

Yes, including optimizing settings and suggesting upgrades if needed.

Upgrade to double-glazed glass or apply energy-efficient coatings to reduce heat loss and utility costs.

Replacing a window frame will improve your home’s energy efficiency if the old frame is cracked or damaged in a way that allows unconditioned air from the outside into your living space or if you upgrade to a more energy-efficient window frame material. Aluminum is the least energy-efficient window frame material, followed by vinyl and wood. Fiberglass and composite frames are the most energy-efficient.

The Cornell, WI homeowners’ guide to energy efficiency auditing services

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

See all articles