Sealing Asphalt Driveway Pros and Cons - Designing Idea
The Average Cost To Seal An Asphalt Driveway. Per foot, the cost to seal an asphalt driveway is about $0.88 to $2.10 per square foot. This mostly depends on the type of sealant that you use. To seal a flat 20×20 foot driveway, the national average is about $355-600. Read more about our guide on the different types of modern driveways here.