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*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

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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!!
"
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+8

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

Provide utility bills and clear access to all areas of the home, including the attic and basement.

R-value is calculated by dividing the thickness of an insulation material by its thermal conductivity. The material's composition and density influence thermal conductivity. Materials with lower conductivity values provide better insulation. The higher the R-value, the better the material is at insulating, helping homeowners select insulation that meets the energy needs of their climate and home layout.

Home power is measured in kilowatt-hours, commonly expressed as kWh. The average home uses between 800 and 1,000 kWh per month. Peak usage (and highest bills) occurs in the middle of summer and the depths of winter. Keeping on top of your usage during these crucial months will lower your annual average usage considerably. 

Typically, triple-pane windows made with krypton gas filling are the most energy efficient. A window’s frame, glass, design, and installation all affect its energy efficiency. These windows, in particular, are designed highly effectively in terms of their ability to insulate.

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

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

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