Washington service directory
Use this page to find sealcoating contractors. Sealcoating is a protective coating that helps asphalt last longer. It guards against sun, water, and chemicals — but it can't fix pavement that needs structural repair. This page lists sealcoating contractors serving Washington, organized by city below.
Before you hire: The Pavement Directory does not guarantee contractor performance, pricing, licensing, insurance, or availability. Business information may be submitted by contractors or gathered from public sources and should be independently verified before hiring. Always confirm licensing, insurance, references, scope of work, and written contract terms.
Directory listings
Walla Walla, Washington
A & B Asphalt is a reputable asphalt company based in Walla Walla, WA, specializing in providing professional asphalt paving services to residential and commercial clients. With a focus on quality workmanship and customer satisfaction, A & B Asphalt offers a range of asphalt solutions, including driveway paving, parking lot construction, and asphalt repairs.
Yelm, Washington
The company offers asphalt paving, parking lot construction, seal coating, striping, and asphalt repair services. They provide residential driveway and walkway installation as well as complete road and parking lot construction. Services include preventative and restorative asphalt maintenance and ADA upgrades.
Burien, Washington
Paving contractor in Burien, WA offering Asphalt Paving, Sealcoating, Parking Lot Striping For over 20 years, Superior Asphalt Maintenance has provided the highest level of asphalt contracting services in asphalt paving, sealing, striping, curbing, and repairs to all of Western Washington. We have worked with both commercial and residential clients throughout the years.
Spokane Valley, Washington
Black Diamond Asphalt Paving LLC is a family-owned paving company based in Spokane Valley, WA, offering new asphalt installation, repairs, resurfacing, and sealcoating for driveways, patios, private roads, and parking lots. Founded in 2014, the company serves residential and commercial customers across Spokane, Stevens, and Lincoln Counties in Washington, as well as Kootenai and Bonner Counties in Idaho. It also provides grading and trucking/hauling services to support paving projects.
Seattle, Washington
Oasis Asphalt Paving provides asphalt paving, patching, sealcoating, striping, and parking lot installation and repair for residential and commercial properties in Seattle, Washington. The company also serves nearby communities including Bellevue, Redmond, Kirkland, Everett, Tacoma, and Renton. It states it is licensed and insured and offers a 3-year warranty on new installations.
Battle Ground, Washington
The company has been in operation for more than 30 years serving educational, municipal, and industrial/commercial markets throughout Illinois, Wisconsin, and Indiana. Services include paving, sealcoating, concrete work, drainage, new construction, and pavement management using environmentally friendly products. The company states it backs all work with a guarantee and provides warranty service.
Spokane Valley, Washington
Stateline Paving & Maintenance, LLC is a locally owned asphalt contractor based in Spokane Valley, Washington, serving both residential and commercial clients throughout the greater Spokane and North Idaho region. Their work includes asphalt resurfacing, removal and replacement, milling, paving and patching, seal coating, and crack sealing, along with excavation, speed bump installation, and winter pothole repair. The company also offers snow removal services and works on parking lots, roads, private drives, and driveways for both commercial/industrial and residential properties.
Everett, Washington
Valley Asphalt Solutions is an asphalt paving contractor based in Everett, Washington, offering services such as driveway and parking lot paving, patching, repair, sealcoating, striping, and slurry coating. The company works with both residential and commercial clients, serving Everett and surrounding areas including Marysville, Mukilteo, Lynnwood, Bothell, Snohomish, and Lake Stevens. The site states the business is licensed and insured, though specific license numbers, founding year, and years in operation are not disclosed.
Research first
Sealcoating is most useful as preventive maintenance on asphalt that is still structurally sound, helping protect the surface from sun, water, and chemical exposure before cracking or base failure sets in.
Sealcoating over pavement with significant base failure, widespread alligator cracking, or unaddressed drainage problems is unlikely to help and can mask issues that need repair or replacement instead.
Yes. Cracks should generally be routed and sealed before sealcoating is applied, not after, so water intrusion is addressed before the protective coat goes down.
Typical cycles range from every one to three years depending on traffic volume, climate exposure, and prior condition. A maintenance contractor can recommend a schedule based on your specific lot.
Yes, if the scope explains surface prep, crack treatment, material, coats, and cure time in writing. A low price with no written scope, no material details, and same-day pressure is the real warning sign.
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