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*The Angi rating for Energy Efficiency Auditing companies in Cologne, MN 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 Cologne, MN 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 October 20, 2025

Find Energy efficiency auditors in Cologne

Avatar for Home Seal Insulation
Home Seal Insulation
4.7(
90
)
Home Energy Audit

Serving Cologne, MN and surrounding areas

Approved

Super Service Award Winner

In business since 2014

Free estimates

Credit card accepted

"I could only select ?Home Energy Audit? above as work I had done. I actually had attic and rim joist insulation. So happy that I spent the money to get my home insulated. There is a noticeable difference. Well worth the money. Thank you!"
Response time2 days
60 neighbors recently requested a quote
Recommended by92%of homeowners
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Avatar for Hoffman Weber Construction
Hoffman Weber Construction
4.3(
337
)
Energy Audit - For BusinessHome Energy Audit

Serving Cologne, MN and surrounding areas

In business since 1992

Free estimates

Credit card accepted

"I contacted HW as a possible backup contractor. Even with that understanding, Al Lien came and independently reviewed the damage and said HW would be happy to hold their position as a contingent contractor. Very impressed with their forthright attitude and professionalism. Other contractor did come through. But I am certain I will use HW in the future. Thanks Al!!"
2020 NARI MN CotY Silver Award Winner
2015 COTY Award Winning Exterior
CertainTeed Restoration Classic Siding and GAF Timberline HD Roofing
Certainteed Restoration Classic Vinyl Siding and GAF Timberline HDZ Roofing
James Hardie HardiePlank Cedarmill Lap Siding, Hardie Board and Batten Siding, and HardieShingle Siding

+278

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

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.

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.

Typically, a local home energy auditor is responsible for performing energy audits. A home energy auditor will conduct one of three energy audits designed by the American Society of Heating, Refrigerating, and Air-Conditioning Engineers (ASHRAE) to determine the energy efficiency of your home. The auditor often provides analysis that can help guide changes and improvements to your home for better energy efficiency, giving recommendations as necessary.

Yes, installing an attic fan can help lower your electric bill—particularly if you live in a hot and humid region. By replacing hot and stuffy air with cooler air, these fans help regulate the temperature in your attic and the rest of your home, taking some of the pressure off of your air conditioner.

There are several signs that your house might have poor ventilation, including lingering odors, condensation on your windows, or mold and mildew. Your home may also feel stale and stuffy, or you might have trouble maintaining a comfortable temperature in your home. On top of that, you might develop allergy symptoms, such as sneezing, coughing, or headaches.

The Cologne, MN homeowners’ guide to energy efficiency auditing services

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

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