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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 August 20, 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

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. 

Blower door tests are measured in a few different ways, but the most popular are air changes per hour (ACH) and cubic feet of air (CFM) moving through the house per hour. A good ACH score is less than 2ACH, but 1ACH is better. This means the house experiences a total air change within 60 minutes (for 1ACH). For 2ACH, there’s a complete change every 30 minutes, and so on. CFM scores are similar in that a lower score means less air change, and therefore less leakage.

Solar water heating systems are not one-size-fits-all. You'll likely work with a team of experts to get the job done—including solar panel installers, plumbers, and water heater installers. A specialist will help you decide if a passive or active system is best for your local weather, home layout, roof stability, and your budget.

Modern windows provide enhanced UV protection, improved heat retention, and cooling efficiency, contributing to overall household energy savings.

A small sump pump running infrequently uses an average of 10 kilowatt-hours (kWh) of electricity per month. The average cost for electricity is $0.171 per kWh. The size and use frequency affect how much electricity it uses. Sump pumps average one-third to one horsepower (hp) motors. One hp is equal to 745.7 watts. Watts multiplied by the time your pump is running divided by 1,000 equals your average kWh. Multiply kWh by your average cost of electricity. In areas with high rain or a marsh basin, the average cost can be as high as $15-$25 a month.

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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