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Draftproofing can be a do-it-yourself project or you can hire an experienced contractor to do air sealing work for you. When hiring someone to draftproof your home, obtain multiple written quotes and be sure to ask how much experience they have draftproofing. Ideally, the contractor should use a blower door while draftproofing to ensure a quality job and to confirm that their work results in an air leakage reduction. Many insulation contractors offer draftproofing services as part of their insulation installation services.

Did you see a building science or energy efficiency term you did not understand? Check out our glossary.