Driveway Sealing Cost Calculator
Compare DIY material costs vs professional sealing.
Cost Comparison:
Total Area: -- sq ft
DIY Cost
--
Requires -- pails (5 gal)
Pro Cost
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Includes Labor & Materials
Driveway Sealing Guide
Sealing your asphalt driveway ("blacktop") is crucial for extending its lifespan. It protects the binder from oxidation (UV rays), water penetration, and oil spills. Plus, it restores that deep black curb appeal.
When to Seal?
Experts recommend sealing every 2 to 3 years. If you seal too often, the layers can peel. If you wait too long (gray and cracking), the asphalt becomes brittle.
DIY vs Professional
- DIY: Significant savings. You buy 5-gallon pails of sealer (coal tar or asphalt emulsion) and apply it with a squeegee or brush. It's messy, hard work but costs ~50-70% less.
- Professional: They use high-grade spray systems or large squeegee machines. The finish is usually more uniform, and they handle the crack filling and cleaning.
Coverage Rates
A standard 5-gallon pail covers approximately:
- Smooth/Previously Sealed: 350 - 400 sq ft.
- Rough/Unsealed: 250 - 300 sq ft.
- Second Coat: Usually covers 20-30% more area as the first coat fills the pores.
Before You Start: The prices estimated here are for sealer only. Don't forget to budget
for crack filler, oil spot primer, and application tools (squeegee, brush, mixer) if
doing it yourself (~$50-$100 extra).