Asphalt Sealing & Slurry Coat in St. Helena, CA

Asphalt Sealing in St. Helena — Done Right

Bay Area Grading and Paving provides professional asphalt sealing services throughout St. Helena and Napa County. With over 30 years of hands-on experience and a crew that shows up on time with the right equipment, we deliver results that last.

Protect your asphalt from UV damage, water penetration, and oxidation. Seal coating extends life by 10–15 years. Whether you're a homeowner in St. Helena looking to replace a cracked driveway or a business needing a commercial parking lot serviced, we have the expertise and equipment to get the job done right — at a fair price.

What's Included

• Slurry seal coating
• UV & water protection
• Crack filling & prep
• Residential driveway sealing
• Commercial parking lot sealing
• Maintenance programs

Serving All of St. Helena

Premium asphalt paving for St. Helena's world-class wineries, estates, and commercial properties in the heart of Napa Valley.

Why Choose Bay Area Grading & Paving for Asphalt Sealing in St. Helena?

• Based in Sebastopol — local to Napa County
• 30+ years of asphalt sealing experience
• Owner Shawn Peterson personally oversees every job
• BBB Accredited A+ Rating — 100+ five-star reviews
• Competitive, transparent pricing
• Licensed, insured & fully equipped
• Free estimates with fast response

Also Serving Nearby Cities

Yountville  |  Calistoga  |  Rutherford

Request a Free Asphalt Sealing Estimate in St. Helena

Call (707) 529-8559 or fill out our online form. We respond within 1 business day.