Sealcoating Contractor in San Jose, CA
Two-coat commercial and residential sealcoating across San Jose, Burlingame, and the Bay Area. Diamond Certified. Licensed & insured. Free written estimates within 24 hours.
What Is Asphalt Sealcoating?
Sealcoating is the single most cost-effective way to extend the life of your asphalt — protecting it from UV rays, water infiltration, oil spills, and oxidation. At EarthTek Grading and Paving, we've sealcoated thousands of driveways, parking lots, and commercial surfaces across San Jose and the Bay Area for over 17 years. Most projects run $0.15–$0.25 per square foot, and a properly sealcoated lot can last 25–30 years instead of 15–20.
Asphalt sealcoating is the application of a liquid coating — typically a coal tar emulsion, asphalt emulsion, or polymer-modified sealer — over existing asphalt pavement. The sealer fills surface voids, blocks water and chemicals, and restores the dark, uniform appearance of new asphalt. It is not a structural repair; it is a protective maintenance layer applied every 2–3 years to high-quality asphalt.
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How We Work
Surface Cleaning
Power-wash and blow the entire surface free of dirt, oil, and loose debris.
Crack Filling
Cracks 1/4" or wider are sealed with hot-applied rubberized crack filler before sealer goes down. Skipping this step shortens sealcoat life by half.
Oil Spot Priming
Oil-stained areas are treated with an oil-spot primer so the sealer bonds properly.
First Coat
Squeegee application for high-density coverage on driveways, or sprayed for uniform coverage on large parking lots.
Second Coat
Most projects receive two coats. The second coat ensures full coverage and dramatically extends life.
Cure Time
Surfaces blocked off for 24 hours (foot traffic) and 48 hours (vehicle traffic).
Re-Striping
For parking lots, ADA-compliant lines, ADA spaces, fire lanes, and directional arrows are re-striped after the sealer cures.
Surface Cleaning
Power-wash and blow the entire surface free of dirt, oil, and loose debris.
Crack Filling
Cracks 1/4" or wider are sealed with hot-applied rubberized crack filler before sealer goes down. Skipping this step shortens sealcoat life by half.
Oil Spot Priming
Oil-stained areas are treated with an oil-spot primer so the sealer bonds properly.
First Coat
Squeegee application for high-density coverage on driveways, or sprayed for uniform coverage on large parking lots.
Second Coat
Most projects receive two coats. The second coat ensures full coverage and dramatically extends life.
Cure Time
Surfaces blocked off for 24 hours (foot traffic) and 48 hours (vehicle traffic).
Re-Striping
For parking lots, ADA-compliant lines, ADA spaces, fire lanes, and directional arrows are re-striped after the sealer cures.
Commercial vs Residential Sealcoating
Residential Driveways
- Squeegee or hand-application for tight detail
- 1–2 day project
- Ideal every 2–3 years
- Typical cost: $0.15–$0.25/sq ft
- See our residential sealcoating page
Commercial Parking Lots
- Spray application for speed and uniform coverage
- After-hours and weekend scheduling available
- ADA-compliant re-striping included
- Volume pricing for lots over 10,000 sq ft
- See our commercial sealcoating page
How Much Does Sealcoating Cost in the Bay Area?
Sealcoating in the Bay Area typically runs $0.15–$0.25 per square foot for a standard two-coat application. A 1,000 sq ft driveway is usually $200–$400 and a 20,000 sq ft commercial lot runs $3,000–$5,000. Pricing varies based on:
- Surface condition (cracked surfaces add crack-fill cost)
- Number of coats (we recommend two)
- Striping requirements (commercial lots)
- Site access and prep needed
See our full sealcoating pricing breakdown.
How Often Should You Sealcoat?
Most asphalt should be sealcoated every 2–3 years. High-traffic commercial lots may benefit from more frequent application. Watch for these signs that it's time to re-seal:
- Color has faded from black to gray
- Hairline cracks are appearing
- Water no longer beads on the surface
- The surface feels rough or pitted
Why Choose EarthTek for Sealcoating?
- Diamond Certified — Bay Area's gold standard for contractor reliability
- Licensed & insured (CA Contractor's License #995715)
- Family-owned, locally operated
- Two-coat application standard (most contractors apply only one)
- Crack-fill included on every quote
- Free written estimates within 24 hours
Equipment We Use
Why Businesses Choose EarthTek
17+ years of commercial paving excellence across San Jose and the greater Silicon Valley.
Frequently Asked Questions
Paving & Sealcoating by Industry
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EarthTek provides commercial paving services throughout San Jose, Silicon Valley, and the greater Bay Area.
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