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Verified Reviews for Energy Efficiency Auditing pros in Keystone, SD

*The Angi rating for Energy Efficiency Auditing companies in Keystone, SD 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 Keystone, SD 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 January 02, 2026

Find Energy efficiency auditors in Keystone

Avatar for Solar Wolf Energy

Solar Wolf Energy

2.00(
2
)

Solar Wolf Energy

2.00(
2
)
11 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
17 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.

Swiftec, Inc

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Swiftec, Inc

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21 years of experience

Locally owned and operator, Swiftec Inc., has been in business since 2005. Swiftec offers both residential and commercial services. Swiftec strives to be a leader in the electrical Industry with quality standards. The Swiftec goal is to provide a wide range of electrical service that is competitive and proficient. Always reliable and affordable, no job is too large or too small. Experience the Swiftec difference.

Locally owned and operator, Swiftec Inc., has been in business since 2005. Swiftec offers both residential and commercial services. Swiftec strives to be a leader in the electrical Industry with quality standards. The Swiftec goal is to provide a wide range of electrical service that is competitive and proficient. Always reliable and affordable, no job is too large or too small. Experience the Swiftec difference.

Avatar for USA Alarm Service, Inc

USA Alarm Service, Inc

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USA Alarm Service, Inc

No reviews yet
30 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.

Energy Efficiency Auditing questions, answered by experts

Expert installation optimizes insulation properties, cutting energy costs and enhancing home comfort year-round.

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.

A couple of the best ways to find a reputable energy auditor is by determining whether they are HEP-certified by the Building Performance Institute (BPI). This certification will help you narrow down your list of professionals to the most qualified pros with the most relevant experience. 

You can also choose from the Department of Energy’s certified list of energy auditors or Angi’s contractor licensing tool to find pros in your area.

Leaving lights on raises the electric bill, but not as much as having high-wattage light bulbs. The best way to save on electric costs is to swap your light bulbs to LED or CFL bulbs that use far fewer watts. You can also use smart lights and light switches to control usage via a smartphone or voice-controlled device.

A home energy audit costs about $420 on average, ranging from about $100 to $2,250 or more. Cost factors include the size of your home, the type of testing, and the thoroughness of the audit. A Level 1 walk-through inspection will cost between $150 and $200 for the auditor to point out inefficiencies in your home. On the other hand, a more thorough Level 3 audit with testing and a detailed report will cost about $900.

The Keystone, SD 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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