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*The Angi rating for Energy Efficiency Auditing companies in Buffalo, 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 Buffalo, 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 Buffalo - Updated Nov 2026

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

Serving Buffalo, 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
57 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 Buffalo, 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

The difference between an energy auditor and a home inspector is primarily in the purpose of the inspection. The energy auditor conducts tests in your home to determine the energy efficiency levels in areas like windows, insulation, and doorways. The auditor then makes recommendations for ways to improve a home’s energy efficiency. 

A home inspector examines various structures of your home to determine that everything is up to code and gauge the condition of features like the roof, foundation, HVAC, and electrical. The home inspector reports on the overall home and makes repair recommendations.

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.

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.

The three levels of home energy audits include:

  • Level 1: Review of your energy bills and home for signs of energy inefficiency and areas for improvement. The average cost range is $0.08 to $0.12 per square foot.

  • Level 2: A level 2 ASHRAE energy audit costs $0.12 and $0.35 per square foot. In-depth analysis of your energy usage and provides a report of cost-saving changes.

  • Level 3: Comprehensive analysis and detailed recommendations for ways to improve your home’s energy efficiency. A level 3 audit costs about $0.36 to $0.50 per square foot.

HVAC systems use the most household electricity. This major and essential system is responsible for heating and cooling your home all year round. Since they operate for a significant amount during the day, it consumes more energy than other appliances. 

The Buffalo, 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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