Green Advantage Insulation

Green Advantage Insulation is a family-owned insulation contractor based in Portsmouth, NH, specializing in closed-cell spray foam insulation. Founded in 2016, we serve homeowners across the NH Seacoast and Southern Maine — including Portsmouth, Dover, Exeter, Hampton, Kittery, York, and surrounding communities throughout the region. When another solution makes more sense for the home, we offer hybrid systems and alternative approaches to get the right result.