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*The Angi rating for Energy Efficiency Auditing companies in Sumner, ME 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 Sumner, ME 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 June 26, 2026

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Avatar for DH Insulation And Home Performance LLC
DH Insulation And Home Performance LLC
5.0(
5
)
Energy Audit - For BusinessHome Energy Audit

Serving Sumner, ME and surrounding areas

Free estimates

"David provided work in a timely and professional manner. David is dependable and did an excellent job with both insulation and a fencing job. Call him for what you need!!"
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Recommended by80%of homeowners
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Avatar for Russells HVAC
Russells HVAC
5.0(
5
)
Energy Audit - For BusinessHome Energy Audit

Serving Sumner, ME and surrounding areas

In business since 2018

Free estimates

"Wonderful . Service provider was fast, knowledgeable, honest and we love the heat pumps. One of the best investments we’ve ever made!!"
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+5

Recommended by100%of homeowners
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Energy Efficiency Auditing questions, answered by experts

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.

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. 

Costs depend on pipe length, accessibility, and whether additional services are required.

Attic and whole-house fans improve a home's energy efficiency and comfort. They ventilate hot air from the attic, which reduces peak cooling loads, lowers reliance on air conditioning, and decreases indoor temperatures. This improved air circulation and expedited heat exit helps lower cooling costs, balance moisture levels, and enhance overall natural airflow, contributing to the efficient operation of other home equipment.

You can check your home's humidity in a few ways. A simple option is to use a hygrometer, which you can find at a hardware or big box store. Your smartphone may also have an app that can measure humidity. Modern thermostats, particularly smart thermostats, are also able to measure humidity levels.

The Sumner, ME 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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