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Top-Rated Energy efficiency auditors in Bellbrook - Updated Nov 2026

Island Environmental, LLC
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Energy Audit - For Business

Serving Bellbrook, OH and surrounding areas

In business since 1999

Credit card accepted

At Island Environmental we pride ourselves in providing professional unbiased inspections, assessments and audits. We will provide you with a certified comprehensive detailed easy to read report that you can understand and use. Our reports contain color photos and all the information needed to assist owners, maintenance personnel, and commissioning agencies formulate economical decisions. \n

Recommended by100%of homeowners
northshore pressure washing
New to Angi
Energy Audit - For BusinessHome Energy Audit

Serving Bellbrook, OH and surrounding areas

In business since 2011

Free estimates

We are one of the largest energy consulting companies in the country. We offer Free Energy Forcasts to businesses across a wide variety of climate zones. When implemented, our recommendations can consistently save you 17-22% on your energy costs, in the first year. We offer a variety of products, from an all-inclusive fixed product, to a variable option and a hybrid. Call today to see what solutions we can offer you! References are available from very happy clients.

Avatar for Primary Source Home Inspections LLC
Primary Source Home Inspections LLC
New to Angi
Energy Audit - For BusinessHome Energy Audit

Serving Bellbrook, OH and surrounding areas

Free estimates

Primary Source Home Inspections is a licensed, InterNACHI-certified home inspection company based in Springboro, Ohio, serving Montgomery, Warren and the surrounding Southwest Ohio counties. Owner Charles Demasie spent sixteen years as a teacher, and he brings that same care to every inspection: you'll understand what he found and what it means. Services include pre-purchase, pre-listing, new construction, pre-warranty and multi-unit inspections, plus radon testing (72 hours of continuous monitoring), lab-analyzed mold testing and wood-destroying insect inspections. Clear, photo-rich reports within 24 hours. Discounts for military, veterans and first responders. Call anytime for a free quote.

Energy Efficiency Auditing FAQs, answered by experts

Yes, energy-efficient windows really can make a difference. As long as energy-efficient windows are properly installed and maintained, they can reduce your energy bill and offer significant savings.

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.

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.

When installing a new furnace, it's a good time to consider other projects that can enhance your home's energy efficiency. A great first step is to get a home energy audit, which will identify areas for improvement. Common recommendations include sealing or replacing windows and adding insulation to the attic. These upgrades can help you save money on monthly utility costs. You might also consider installing a smart thermostat to make heating your home more convenient and efficient.

The Bellbrook, OH homeowners’ guide to energy efficiency auditing services

From average costs to expert advice, get all the answers you need to get your job done.