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*The Angi rating for Energy Efficiency Auditing companies in Waverly, 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 Waverly, 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 July 30, 2026

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

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

Serving Waverly, MN and surrounding areas

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
49 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 Waverly, MN and surrounding areas

In business since 1992

Free estimates

Credit card accepted

"AJ diagnosed the cause of our ceiling damage after we received widely different opinions from multiple estimators. He performed the most critical vent replacement the same day, and his crew was able to complete the remaining work a few days later. Very thorough and professional. We are happy with their responsiveness and approach to the work."
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 FAQs, answered by experts

Blower door tests are measured in a few different ways, but the most popular are air changes per hour (ACH) and cubic feet of air (CFM) moving through the house per hour. A good ACH score is less than 2ACH, but 1ACH is better. This means the house experiences a total air change within 60 minutes (for 1ACH). For 2ACH, there’s a complete change every 30 minutes, and so on. CFM scores are similar in that a lower score means less air change, and therefore less leakage.

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.

Leaving vents open but closing doors in unused rooms will probably not save money on your energy bill. Closed doors prevent the natural flow of air throughout the home, which could reduce the efficiency of the overall HVAC system. They could also restrict airflow into and through the return vents, making the HVAC system less efficient.

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. 

To find a reputable home energy auditor, start by researching local companies that offer the service and check their reviews, methods, and certifications. The most reputable professionals are often Home Energy Professional (HEP)-certified by the Building Performance Institute (BPI). You can also consult the Department of Energy’s certified list of energy auditors or use a state licensing tool to review local guidelines and ensure you are hiring a certified professional for your area.

The Waverly, 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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