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Verified Reviews for Energy Efficiency Auditing pros in Willmar, MN

*The Angi rating for Energy Efficiency Auditing companies in Willmar, 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 Willmar, 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 November 03, 2025

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Avatar for USA Alarm Service, Inc

USA Alarm Service, Inc

510 S Clearwater Loop
No reviews yet

USA Alarm Service, Inc

510 S Clearwater Loop
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 Innovative Dr. Energy Saver

Innovative Dr. Energy Saver

1100 Holstein Dr
No reviews yet

Innovative Dr. Energy Saver

1100 Holstein Dr
No reviews yet
20 years of experience

Innovative Dr. Energy Saver is a division of Innovative Basement Systems. We have been in business since 2005, serving all of the local areas needs in Minnesota for basement waterproofing, foundation repair and basement finishing. For 10 years, the business has enjoyed steady and continued growth with many awards received and continued excellent A+ standing with the BBB. As an important member of Basement Systems and Foundation Supportworks international networks of waterproofing and foundation repair contractors, we were recently honored with 7 awards at the Team Basement Systems International Convention.

Innovative Dr. Energy Saver is a division of Innovative Basement Systems. We have been in business since 2005, serving all of the local areas needs in Minnesota for basement waterproofing, foundation repair and basement finishing. For 10 years, the business has enjoyed steady and continued growth with many awards received and continued excellent A+ standing with the BBB. As an important member of Basement Systems and Foundation Supportworks international networks of waterproofing and foundation repair contractors, we were recently honored with 7 awards at the Team Basement Systems International Convention.

Avatar for Energy Choice Center

Energy Choice Center

1301 Seminole Boulevard Suite 155
No reviews yet

Energy Choice Center

1301 Seminole Boulevard Suite 155
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.

RetroGreen Energy

3312 Southway Dr
4.76(
41
)

RetroGreen Energy

3312 Southway Dr
4.76(
41
)
Customers say: Super punctual
Recommended by 97% of Angi customers
Recommended by 97% of HomeAdvisor customers

All of our home energy auditors are BPI certified. All of our installers are BPI certified company employees. We have great specials and financing available.

"The crew arrived right on time and immediately set to work. The foreman went through the house with his infrared camera to find the locations of studs and blocks (boards between studs) and gave measurements to another guy outside, who marked these locations with black tape. Then they drilled holes into each cavity from outside (5/8" holes through the stucco). That was quite a noisy operation! Once the holes where drilled, they began filling with the foam from outside. One person was inside to see if the foam started to come through the inside. (We had one spot where a kitchen cabinet was built right up to the outside -- 100 year old house -- and they started to run the insulation into the cabinet! Quickly stopped and easily cleaned up.) They used drop-cloths outside to collect most of the excess foam (see photo) and did a pretty good job of cleaning up. They filled the holes and touched up with the paint we provided. I admit I was worried about having a lot of obvious patches showing up on the walls outside, but you really cannot tell unless you look quite close... except for a few areas where the wall is dirty. Those should disappear when I do a little wall washing this summer. Our drafty, 100-year-old house is much less drafty, definitely cozier, and noticeably quieter (the foam-filled walls deaden a lot of noise.) Looking forward to seeing how it effects my energy bill! The two photos show the back of the house during the job (see black tape and lines of foam between holes) and after (all cleaned up; patched holes not easy to spot.) I should note that this was all done in one snowy, 30 degree day."

BRUCE Y on April 2018

All of our home energy auditors are BPI certified. All of our installers are BPI certified company employees. We have great specials and financing available.

"The crew arrived right on time and immediately set to work. The foreman went through the house with his infrared camera to find the locations of studs and blocks (boards between studs) and gave measurements to another guy outside, who marked these locations with black tape. Then they drilled holes into each cavity from outside (5/8" holes through the stucco). That was quite a noisy operation! Once the holes where drilled, they began filling with the foam from outside. One person was inside to see if the foam started to come through the inside. (We had one spot where a kitchen cabinet was built right up to the outside -- 100 year old house -- and they started to run the insulation into the cabinet! Quickly stopped and easily cleaned up.) They used drop-cloths outside to collect most of the excess foam (see photo) and did a pretty good job of cleaning up. They filled the holes and touched up with the paint we provided. I admit I was worried about having a lot of obvious patches showing up on the walls outside, but you really cannot tell unless you look quite close... except for a few areas where the wall is dirty. Those should disappear when I do a little wall washing this summer. Our drafty, 100-year-old house is much less drafty, definitely cozier, and noticeably quieter (the foam-filled walls deaden a lot of noise.) Looking forward to seeing how it effects my energy bill! The two photos show the back of the house during the job (see black tape and lines of foam between holes) and after (all cleaned up; patched holes not easy to spot.) I should note that this was all done in one snowy, 30 degree day."

BRUCE Y on April 2018

Energy Efficiency Auditing questions, answered by experts

Yes, skylights can affect a home’s energy efficiency, either positively or negatively. Properly installed, energy-efficient skylights with Low-E coatings, double glazing, and UV-blocking glass can help regulate indoor temperatures and reduce heating and cooling costs. However, poorly insulated or older skylights can contribute to heat loss in winter and excess heat gain in summer, lowering overall energy efficiency.

Motion-sensor lights use one watt while on standby and five watts while turned on. They’re usually on for one hour over a 24-hour period, bringing the total wattage to about 28 watts per day. LED lights use around 6.5 to 8 watts while on. If you leave an LED light on all night, with night ranging from 10 to 14 hours, you’re looking at using 65 to 112 watts a night. You can minimally cut your wattage in half by switching to a motion-sensor light.

Services by electricians can quickly get expensive, but there are a few ways you can save money in the process:

  • Bundle multiple jobs done at the same time to save on trip fees or flat fees for individual projects.

  • Get at least three quotes for service to find the best deal.

  • Buy fixtures, switches, outlets, and other materials beforehand to avoid product markup.

  • If you feel comfortable with it, have an apprentice or journeyman complete the work under the supervision of a master electrician. These electricians in training tend to charge less per project.

Yes, advising on models that save electricity and reduce utility bills.

Dehumidifiers typically use 300 to 700 watts of electricity per hour, whereas portable dehumidifiers use about 40 watts per hour. The exact amount of electricity your dehumidifier will generate depends on its capacity and energy efficiency. Generally, higher-capacity dehumidifiers generate more electricity than lower-capacity units, but they also usually have better energy efficiency over the long run.

The Willmar, 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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