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*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 27, 2026

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Healy Home Services LLC
5.0(
1
)

Serving Keystone, SD and surrounding areas

In business since 2022

Free estimates

Credit card accepted

"Micah is an excellent on task contractor, always on time and productive. He's very quick at resolving any possible material or project changes. We've found Micah to be very reliable, trustworthy and honest to work with. He's been a real pleasure in a time when you're lucky to even get a phone call back from a contractor. Would most certainly hire him again!"
Finished Deck
Pre-sealent
Response time30 mins
Response rate100%
Recommended by100%of homeowners
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Energy Efficiency Auditing questions, answered by experts

DIY is possible with basic tools. Professional audits provide comprehensive assessments and tailored recommendations.

STC (Sound Transmission Class) is a rating that describes how well a building material or assembly blocks airborne sound. A higher STC rating means less noise will pass through the material, providing better sound reduction. This rating system applies to various building components, including windows, doors, flooring, drywall, and insulation.

For context, a typical single-pane window has an STC rating of around 25 (where normal conversations are audible), while a well-sealed, double-pane window can exceed STC 45 (blocking loud speech and most music). It is important to note that for some products, like soundproofing drywall, the STC rating refers to the entire wall system, not just the individual panel.

Additionally, STC ratings are most effective for measuring sound reduction at mid-to-high frequencies, such as human speech, and may not accurately reflect how well a material blocks low-frequency sounds like bass music or thunder. Because of these factors, it is recommended to consult a professional to determine the right STC-rated materials for your specific soundproofing needs.

There are a couple of ways you can save on the cost of your home energy audit. First, find out if you qualify for programs like the Department of Energy’s Weatherization Assistance Program for low-income households. Next, check with your local utility company to find out if you qualify for any local rebate programs to offset the cost of this helpful service.

Yes, including optimizing settings and suggesting upgrades if needed.

Audits typically take 2-4 hours, depending on the property size and energy systems.

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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