A perfect sealcoating job protects your investment.

Get the best in cost-efficiency and quality with William Stanley & Sons.

William Stanley & Sons is an asphalt sealcoating contractor in Portland that aims to maximize the lifespan of our clients’ projects. Apart from high-quality asphalt paving and restoration, we also place a large emphasis on the importance of sealcoating.

As sealcoating pavers, we have experience in paving many different outdoor features, including driveways, sidewalks, sports courts, and parking lots. We also take on industrial and larger projects like private road asphalt paving. The importance of sealcoating cannot be overstated. Since asphalt paving and repairing can enhance the value of your commercial or residential property, it is nothing less than an investment. The best way to protect your investment is with our sealcoating services.

Our team of sealcoating pavers is highly skilled and experienced in the different services that we offer. We have found that the best way to ensure prolonged use of your outdoor asphalt feature is to launch a high-quality asphalt paving or repair job, in combination with a proper sealcoating treatment.

Get started on your paving project today.

Get started today with a free quote.


Asphalt Sealcoating Service

What is Sealcoating?

A sealcoat is a protective layer applied on top of a paved surface. Asphalt sealcoating reduces the depth the elements can penetrate into your pavement by coating it with durable commercial grade sealant.

Driveway sealcoating and parking lot sealcoats are particularly important due to the high traffic and abuse. A regularly scheduled application every two or three years is recommended.

Reasons for Sealcoating

Affordable Preventative Care

Instead of spending thousands to replace degraded asphalt you can spend a fraction of that to make sure it doesn’t get damaged in the first place. Sealcoating will more than double the life of your pavement by shielding it from the following destructive forces:

  • Weather: sun, rain, ice, snow
  • Chemicals: gas, oil, deicers
  • Wear and tear from frequent use


In addition to preventing future damage to your pavement which can lead to unsafe conditions, sealcoats are also slip resistant.

Looks Great

Graying of your asphalt is a symptom of oxidation caused by the sun and a sign that your pavement could use some care. Blacktop sealcoating will cosmetically restore that high shine and deep black color of fresh asphalt.

seal coating

Professional Sealcoating Process

In order to provide complete protection to your asphalt we take the following steps:

  • Blocking off the designated areas to be sealed
  • Make sure any sprinkler systems are turned off for the duration of the work and drying
  • Clean the entire area with power washers, street sweepers, scrubbers, hand-held blowers, and motorized wire brooms
  • Evaluate and Prime the pavement
  • Fill cracks and repair damaged areas
  • Apply multiple coats of our high-quality commercial grade sealant
  • Let dry for at least 12 hours
  • Final walk-through and inspection with you

Contact Us Today

We are your sealcoating specialists.

When it comes to asphalt pavements, it is important to realize the impact it has on your property’s value and functionality. High-end asphalt paving can reduce your property’s routine maintenance requirements and costs, especially if you make use of our sealcoating services. Contact us today to sealcoat your asphalt paving.