Seal driveway

Seal your asphalt driveway to protect it from weather damage and extend its life.

Why it matters#

Sealing protects asphalt from UV damage, water penetration, and oil stains. Regular sealing can double the lifespan of your driveway.

What you'll need#

Tools#

Stiff push broom
Pressure washer or garden hose with nozzle
Crack filler applicator
Driveway squeegee or brush applicator
Paint roller with extension handle (optional)

Materials#

Asphalt crack filler
Driveway sealer
Plastic sheeting

Steps#

1. Check the weather#

Choose a dry period with temps between 50-85°F. No rain expected for 24-48 hours. Sealer needs time to cure.

2. Clean the driveway thoroughly#

Remove all dirt, debris, oil stains, and vegetation. Pressure wash or scrub with degreaser. Let dry completely.

3. Fill cracks#

Apply crack filler to any cracks wider than 1/8 inch. Smooth with a putty knife and let cure according to product directions (usually 24 hours).

4. Protect edges#

Use painter's tape and plastic to protect garage doors, walkway edges, and any areas you don't want sealed.

5. Stir the sealer thoroughly#

Mix the sealer well before and during use. Pigments and solids settle to the bottom.

6. Pour sealer in a line#

Starting at the garage or top of the driveway, pour a ribbon of sealer across the width.

7. Spread evenly#

Using a squeegee or brush, spread the sealer in thin, even coats. Work in one direction, then cross-hatch perpendicular.

8. Work in sections#

Complete one section before moving to the next. Don't let edges dry before connecting sections.

9. Apply second coat (recommended)#

After the first coat dries (4-8 hours), apply a second thin coat perpendicular to the first for best coverage.

10. Let it cure#

Keep all traffic off the driveway for 24-48 hours. Full cure takes up to 30 days—avoid sharp turns during this time.

Pro tips#

Seal asphalt driveways every 2-3 years for best protection
Don't seal new asphalt—wait at least 6 months for it to cure
More isn't better—thick coats peel and flake; thin coats bond better
Seal in spring or fall when temperatures are moderate

Warnings#

Sealer is slippery when wet—don't walk on it until fully dry
Fumes can be strong—work in ventilated area and avoid inhaling
Sealer will stain anything it touches—wear old clothes and shoes you can discard
Don't seal concrete driveways with asphalt sealer—different products required

Consider professional sealing ($0.15-0.25 per square foot) if: you have a very large driveway, significant repairs needed beyond basic cracks, or prefer not to handle the mess. Professionals can also apply higher-quality commercial sealers.