Professional Sealcoating and
Asphalt Maintenance in Portland
Black Diamond Sealcoating is Portland's trusted choice for professional sealcoating, crack sealing, and line striping. From residential driveways to commercial parking lots, we protect your investment with quality workmanship.
Our Services in Portland, OR
Full-service asphalt maintenance for residential and commercial properties.
Sealcoating
Protect and extend the life of your asphalt with professional-grade sealcoating. We handle driveways, parking lots, and commercial surfaces.
Crack Sealing
Stop water damage and prevent further deterioration with expert crack filling and sealing services.
Line Striping
Professional parking lot striping, ADA compliance markings, fire lanes, and custom stenciling.
Asphalt Maintenance
Comprehensive maintenance programs to keep your pavement looking great and performing for years.
Site Prep
Surface cleaning, preparation, and repair work to ensure the best results for any sealcoating project.
Why Portland Chooses Black Diamond
Licensed & Insured
Fully licensed, bonded, and insured for your protection.
10+ Years Experience
Over a decade serving the Portland metro area with quality work.
Fast Scheduling
Same-week service available. We work around your schedule.
Local & Trusted
Proudly serving Portland and the surrounding communities.
Also Serving Nearby Areas
Based in Troutdale, Oregon — serving the entire Portland metro and beyond.
Ready to Get Started?
Free estimates for Portland and surrounding areas. No obligation. Fast response.