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

R-value measures an insulation material's thermal resistance, indicating its ability to resist heat transfer. A higher R-value signifies better insulation performance because the material is more effective at slowing heat flow. The R-value depends on the type, thickness, and density of the insulation material, such as fiberglass, foam, or cellulose. Each inch of insulation typically provides an R-value between 3 and 8. There is no single universal R-value; the optimal choice depends on your climate zone. Colder climates require a much higher R-value than warmer ones to maintain energy efficiency, keep the home warm in winter and cool in summer, and manage costs.

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.

If you have central air conditioning, it’s fine to run your AC all day if that’s what you want—as long as the AC unit is in good condition. But if your AC runs constantly when you don’t want it to, there may be a problem with your system (like the ones we’ve mentioned above). Window AC units and wall air conditioners aren’t as powerful as central AC, so you should only run those kinds of air conditioners for eight to 12 hours at a time.

Yes, these services often increase home value by preventing moisture-related issues and enhancing the usable space in basements or crawlspaces.

The number one culprit of high energy bills is older appliances, especially fridges and freezers that are left on all the time. These two appliances tend to last a long time, which is good, but it also means that newer models are usually significantly more energy-efficient due to upgraded technology. The second most common reason for a high bill is heating and air conditioning.

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