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*The Angi rating for Energy Efficiency Auditing companies in Williamsburg, MI 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 Williamsburg, MI 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 September 28, 2026

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Avatar for Johns Home Inspections - Facebook
Johns Home Inspections - Facebook
4.5(
30
)
Home Energy Audit

Serving Williamsburg, MI and surrounding areas

In business since 2019

Emergency services offered

Small jobs welcome

"John and Pamela have done a very good job and work quite fast to provide their reports in a matter of hours, not days. Their cost of service is better than their competition. John's Home Inspections can provide excellent work for both home sellers and home buyers."
Cabin of 1998
Home Inspection
Outside Construction
Credit Card Accepted
Complete Home

+3

Response time2 hrs
Response rate97%
Recommended by96%of homeowners
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Avatar for Geofurnace Heating & Cooling, LLC
Geofurnace Heating & Cooling, LLC
4.6(
51
)
Home Energy Audit

Serving Williamsburg, MI and surrounding areas

In business since 1990

Free estimates

Emergency services offered

"To hid the heat pump condenser we had the unit mounted on our house. It makes a vibrating sound in the house. But in defense of Geofurance we haven't given them a chance to resolve the problem. I would also like to say the heat pump has saved us a lot of money as far as propane cost. It also replaced a resistance heating system in our loft. It now allows us the ability to use the loft in the winter."
Blower Door Test
Inferred Imaging
Hands on Evaluating
Spray Foam Insulation
We service all makes and models

+1

Response time1 day
Recommended by95%of homeowners
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Energy Efficiency Auditing questions, answered by experts

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.

String lights require electricity, but not an excessive amount, especially when compared to other lighting fixtures. LED rope lights, for instance, consume around one watt per foot. Running six or seven light strings simultaneously should only cost you around $10 to $15 each month. You can save even more money by remembering to turn off your lights during daylight hours. 

It’s not recommended to turn off your breaker box in hopes of saving electricity. Breaker boxes were not designed to constantly be switched on and off. Therefore, turning off breakers unnecessarily can cause costly damage that outnumbers any energy savings. Only flip your breakers if absolutely necessary when troubleshooting an electrical issue.

Typically, triple-pane windows made with krypton gas filling are the most energy efficient. A window’s frame, glass, design, and installation all affect its energy efficiency. These windows, in particular, are designed highly effectively in terms of their ability to insulate.

Depending on the level of audit you choose, a home energy audit will at least include a walk-through of the home to determine visible inefficiencies, but may include testing and a highly detailed inspection and report laying out the home’s inefficiencies and providing recommendations to fix those issues. The audit may also include a review of utility bills and mechanical testing. Consult your home energy auditor about the types of services they provide before hiring.

The Williamsburg, MI 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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