Home Energy Audits & Insulation Southern Maine and Seacoast New Hampshire
How We Can Help
ENERGY AUDITS
SERVICES
REBATES
FOR CONTRACTORS
Building code air leakage and duct leakage testing. Mechanical ventilation systems
Boost comfort and energy savings with insulation, air sealing, and IAQ upgrades
Thousands in rebates available for ME and NH homes
Energy Audits, Insulation & Testing in Southern Maine and Seacoast New Hampshire
Efficient Home Services, LLC is based in Berwick, Maine. We provide home energy audits, insulation and air sealing, and blower door and duct leakage testing for homeowners and builders, including energy code air leakage testing for new construction. We also offer crawlspace repair. We serve York County, Maine, including Berwick, Kittery, York, Wells and Sanford, and Seacoast New Hampshire, including Portsmouth, Dover and Rochester.
Blower Door Testing
Every home energy audit we do starts with a blower door test. A calibrated fan in an exterior doorway depressurizes the house so we can measure how leaky it is and find where the drafts are coming from. Builders use the same test to show a new home meets the energy code air leakage requirement. Learn more about blower door and duct leakage testing, or see what's included in a home energy audit.