Roof Waterproofing

Roof Waterproofing

A roof is only as good as its ability to protect the property it crowns, keeping it dry and safe from water damage. Leaks are the most common roof problem, which can be prevented with quality roof waterproofing by Gragar Construction. We seal roofs to perfection, as only expert roofing contractors can. 


Call us at (425) 772-3268 to protect your home now.

  • A man is kneeling on the roof of a building applying silicone sealant.

Skilled Roofing Contractors

We’re licensed, certified, and insured waterproof roof coating experts whom you can trust with your home’s ultimate shield of defense from the elements. In addition to many other roofing services, we’ve mastered the art of rainproof roofing. Our professional pride in our services encourages us to keep up with all the latest roof waterproofing techniques. We know how to keep your roof watertight, so call today to ask about our superb services.

Best Rainproof Roofing

There are several ways methods we offer our clients to achieve optimal rainproof roofing. After closely inspecting a roof, we consult with the owner, explaining their different waterproof roof coating options. Our knowledgeable roofing contractors help guide clients to the best choice for their property during this assessment and consultation. Professional installation is a must with the following chemical waterproof roof coatings we offer:


  • Polyurethane: a seamless, crack-filling, spray-on waterproofing membrane
  • EPDM rubber: a flexible, effective coating available for every budget
  • Rubberized asphalt: a flexible and robust sealant
  • Bituminous membrane: a liquid or semi-solid option with a wide price range
  • PVC (polyvinyl chloride) membrane: a very popular light-reflecting material

Reliable Application of Waterproof Roof Coating

Gragar Construction ensures lasting, successful roof waterproofing because of our no-cutting-corners policy. We take our time with your roof, ensuring every step is done with care and precision. Starting by power washing the roof, we expose every area that might need extra attention. After drying the surface, we prime it so it’s ripe for strong, gripping adhesion. We prepare the corners, edges, and flashings for waterproofing. Layered installation is next, followed by a close inspection with our high-quality photographic equipment.

Roof Waterproofing Excellence

While we can guarantee our professional team will apply waterproof roof coating so that it performs to its maximum potential, the property owner must do all they can to ensure their roofing structure is still sound. Significant storm damage can still cause issues to your roof, even if it is perfectly waterproofed. However, we offer regular maintenance to prevent any structural damage from becoming problematic and spare property owners costly repairs down the road.

Top Roofing Services

For the best care your roof has ever had, hire Gragar Construction. We offer a full range of roofing services, so you never have to worry about water damage, mold, mildew, and flooding. Aside from roof waterproofing, we specialize in:


  • Roof inspections
  • Roof maintenance
  • Roof repairs
  • Roof installation
  • Roof replacement
  • Gutters and downspouts
  • Eavestroughs and fascia
  • Commercial and residential roofs

Contact Gragar Construction, Your Local Roof Waterproofing Team

Reserve our next roof inspection and waterproofing appointment by calling us at (425) 772-3268. Our team provides every customer with a safe, honest, affordable roof waterproofing experience. Call now!

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