Some frequently asked questions about asphalt maintenance include when and why should you sealcoat. Also, many times potential clients want to know our process so to prepare tenants. We attempt to answer these questions clearly, but should you need further information, please contact us at (503) 999-1235 or through our contact form.

Cars need oil changes, houses need new paint, and bicycles need tune-ups. Without these important maintenance items continually in place, your investment will begin to degrade in performance and will ultimately fail. Likewise, asphalt pavement needs continual maintenance to seal out water, solvents, and wind-blown debris that can cause damage both to the surface and beneath the surface of the asphalt. Sealcoating and crack filling your pavement preserves your investment at a fraction of the cost to replace it or overlay it.

Every 3-5 years is optimal. This keeps the damage caused by automobile weight (hairline cracks), solvents (oil, antifreeze, grease), and our great northwest weather (rain, wind, ice, snow, freezing) contained.

When you have new asphalt, it is best to wait three (3) months to one year before applying the first sealcoat. This allows the asphalt to cure properly. On smaller asphalt patches, the waiting period is not required.

No. You should require the use of a product that adheres to the ASMA standard specifications. We use CarbonSeal™, a product proven to be one of the best in the industry. You can find out more about CarbonSeal™ here.


Our sealcoating process begins with the cleaning and preparation of the surface of the pavement. The cleaner the surface, the better the end result will be. We use blowers, brushes, and/or power sweepers and pressure washing when necessary to make sure the surface of the lot is as clean as possible. Oil or grease spots are treated with a primer to ensure proper bonding of the sealant.

Asphalt Willamette Valley Oregon


Cracks that are over 1/4 of an inch are prepped and filled with a specialized rubber sealant heated to 400 degrees. This material is flexible to allow for expansion and contraction with the cold and hot weather to maintain the integrity of the seal.


Next we hand apply the sealcoat to the edges of the pavement to ensure a neat, clean edge. Next we apply two coats of sealant to the surface to ensure a nice, even, and long-lasting finish. We do not skimp on the sealant and make sure the heavy traffic areas are covered adequately. We always apply two coats of sealant to ensure a properly covered surface that will not only look good, but last as long as possible.


Once the sealcoat has been applied, the lot can be striped to the previous layout. Or if you desire to make changes to the layout, we can make the necessary accommodations.

After the sealcoat has been applied, it is recommended that vehicles be kept off the lot for at least 24-48 hours. Normal foot traffic is ok within a few hours, but the material needs time to cure before vehicles are allowed back on the surface.

We are happy to partner with you during the planning stages of your project to provide estimates for budgeting purposes.  Please notify us during your initial contact so that we can inform you of the services and product pricing that may be subject to change on a long-term basis.  Additionally, please be sure to indicate if you have a budgeting session or other estimate deadline we can help you meet.



Helps to restore and protect your investment.

two employees filling cracks in parking lot in Oregon


Routinely filling asphalt cracks can help avoid costly replacement.

parking lot striping


We offer full lot striping and painting services.

employee on paving roller along curb


We remove damaged pavement & replace it with new asphalt.


AMAZING from start to finish! Justin and his entire team were a exceptional to work with. I had the pleasure of working with Justin on a large project with many moving parts and the project flowed seamlessly. It was and is fantastic that Willamette Valley Sealcoating is able to facilitate so many services with exceptional results. Repeat customer, for sure! Thank You.

Brookshore Apartments

Services: Asphalt resurfacing, Parking lot repair & maintenance, Excavation & grading, Asphalt paving & repair, Driveway sealing, Pavement crack filling & sealing, Concrete work, Street maintenance, Bumper block & post installation, Paving line striping, Driveway replacement, Sealcoating, Paving job site preparation, Parking lot striping, Driveway repairs


Sealcoating a Retreat Center
Sealcoating an RV Park
Sealcoating A Baptist Church
Sealcoating People's Church



Whether you need a small driveway seal coated or a large parking lot paved, we have the equipment and ability to successfully complete your project with the highest levels of professionalism and quality.