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Verified Reviews for Energy Efficiency Auditing pros in Mankato, MN

*The Angi rating for Energy Efficiency Auditing companies in Mankato, 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 Mankato, 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 December 04, 2025

Find Energy efficiency auditors in Mankato

Avatar for Home Seal Insulation

Home Seal Insulation

4.94(
78
)
•Approved Pro

Home Seal Insulation

4.94(
78
)
•Approved Pro
Super Service Award
Customers say: True professional
Recommended by 96% of Angi customers
Recommended by 96% of HomeAdvisor customers
89 local quotes requested

Home Seal Insulation is a family owned insulation contractor in Minnesota that prides itself on helping homeowners and builders realize their energy savings potential. We offer a variety of services to better assist, and educate our customers. No matter the size of your project, the experienced professionals at Home Seal Insulation will analyze, plan, and carryout the most energy efficient outcome for your home. We want to keep our customers energy bills down! Whether you have ice dams, uncomfortable areas in your home, HIGH BILLS or just curious about the efficiency of your home, we can help you reduce your carbon footprint and save you money! Call us today to schedule your energy audit and/or receive your free insulation estimate.

"Extremely responsive, professional from start to finish, and offered excellent value compared to other quotes. Highly recommend!"

Joe L on November 2025

Home Seal Insulation is a family owned insulation contractor in Minnesota that prides itself on helping homeowners and builders realize their energy savings potential. We offer a variety of services to better assist, and educate our customers. No matter the size of your project, the experienced professionals at Home Seal Insulation will analyze, plan, and carryout the most energy efficient outcome for your home. We want to keep our customers energy bills down! Whether you have ice dams, uncomfortable areas in your home, HIGH BILLS or just curious about the efficiency of your home, we can help you reduce your carbon footprint and save you money! Call us today to schedule your energy audit and/or receive your free insulation estimate.

"Extremely responsive, professional from start to finish, and offered excellent value compared to other quotes. Highly recommend!"

Joe L on November 2025

Avatar for USA Alarm Service, Inc

USA Alarm Service, Inc

No reviews yet

USA Alarm Service, Inc

No reviews yet
29 years of experience

USA Alarm is a national company that has more than two decades of experience and an award winning command center that protects more than 700,000 homes and businesses through the United States, 24 hours a day and 7 days a week. We have offices located throughout the US, with two main offices in Indianapolis, Indiana and Post Falls, Idaho.

USA Alarm is a national company that has more than two decades of experience and an award winning command center that protects more than 700,000 homes and businesses through the United States, 24 hours a day and 7 days a week. We have offices located throughout the US, with two main offices in Indianapolis, Indiana and Post Falls, Idaho.

Solar Wolf Energy

2.00(
2
)

Solar Wolf Energy

2.00(
2
)
10 years of experience

Solar Wolf is a full service solar company with a great reputation and an old world belief to our customers. To under-promise and over-deliver, period. We have 18 years experience in construction, remodeling, roofing, solar water heaters, solar pv systems, battery back-up systems and much more. See what Solar Wolf Energy can do for you!

Solar Wolf is a full service solar company with a great reputation and an old world belief to our customers. To under-promise and over-deliver, period. We have 18 years experience in construction, remodeling, roofing, solar water heaters, solar pv systems, battery back-up systems and much more. See what Solar Wolf Energy can do for you!

Avatar for Energy Choice Center

Energy Choice Center

No reviews yet

Energy Choice Center

No reviews yet
16 years of experience

We provide free energy consulting services that pertain to discounted natural gas and electricity supply services through local utility companies.

We provide free energy consulting services that pertain to discounted natural gas and electricity supply services through local utility companies.

Energy Efficiency Auditing questions, answered by experts

When combined with a substantial solar system, if you have enough Powerwalls, you could go off-grid and be energy independent. But remember, you'd need enough Powerwalls to power your whole home continuously because a single Powerwall can’t power large appliances for extended periods. One Powerwall is able to power an average-sized home's emergency circuits, lights, and outlets. To power large appliances, you likely need two or three Powerwalls.

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. 

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.

While many states require all new construction to undergo blower door tests, it’s not a requirement for existing homes. But in both cases, a blower test helps confirm that the contractor has sealed the exterior, that the type of ductwork installed is functioning properly, and that your home is as efficient as possible.

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.

The Mankato, 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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