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Exclusive Seattle Washington Commercial Roof Waterproofing that Business Owners Swear By

Finding a skilled commercial roof waterproofing expert in Seattle, Washington can be difficult. Commercial roofs are very different from residential ones and require specialized knowledge, experience, and skill to properly waterproof. Seattle business and property owners can rely on Diamond Roofing and Construction for their waterproofing needs. Our team of experienced commercial roofing technicians are highly sought-after by clients across the area and beyond, because they have a reputation of correctly identifying, diagnosing, and fixing any commercial roof water problems. In addition to this, our commercial roof waterproofers take great care in ensuring a thorough job through high-quality products that guarantee maximum performance for long-lasting protection from water damage. We understand the importance of keeping your business’s rooftop safe from potential water damage, so we use only premium materials that provide superior protection against leakages or other issues caused by rain, ice or snow.

With our state licenses and certifications, you can be sure that your commercial Seattle roof waterproofing will be skillfully and safely handled by a reliable team. We specialize in protecting Seattle business roofs from water damage with our advanced roof waterproofing solutions. Our commercial roof waterproofing experts strive to provide exceptional service and quality while upholding our commitment to customer satisfaction. We are dedicated to finding innovative, cost-effective ways to address any Seattle Washington construction project needs, no matter the size or complexity. Contact us today to find out how you can benefit from our expert Seattle Washington commercial roof waterproofing services!
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Top-Quality Commercial Roof Waterproofing in Seattle Washington

Finding a reliable company that can handle commercial roof waterproofing in Seattle Washington is no easy task. That's why the team at Diamond Roofing and Construction are so highly sought-after. We offer top-notch commercial roof solutions with one of the most experienced and knowledgeable crews around. You can trust us to provide superior services that meet your exact needs, while adhering to local regulations.

We use the best materials available for our projects, from high-performance membranes and coatings to heavy duty flashing systems. Our aim is to guarantee you total satisfaction every time, because we understand how important it is for it to stay dry and last for many years to come. All of our roof waterproofing projects are backed by our comprehensive warranty, and we have a dedicated team that is available 24/7 to answer any questions you may have. Contact us today for a free quote!

Premium Quality

Your home is one of your most important investments, and your roof is the main protection from all the Seattle rain that we get here. Make sure your roof is in great shape by calling in the experts at Diamond Roofing.

On Time

We respect your time and when we make an appointment, we will be there on time. We also complete our projects to the schedule that we have agreed to and work to minimize the disturbances to you and your family.

Competitive Prices

Our experienced team can discuss with you the various roofing options you have to ensure that we can stay within your budget. While our highest priority is quality, we are also highly competitive in terms of project cost.

Licensed and Insured

Not only are all of our professionals highly trained and experienced, we are of course fully licensed and insured so you can trust that our work will be of the highest standard.


We gladly offer a 10 year guarantee on new and replacement sloped roofs, 20 years on flat roofs, and up to a 5 year guarantee on repairs! We are confident in our work and therefore stand behind its quality!

Customer Service

We are customer focused and are only successful due to our many happy customers. Communication is extremely important and we ensure that your concerns are addressed throughout the process and that you are always in the loop.
Our 4 Step Seattle Roofing Process
Free Consultation and Quote

We will examine your roof and talk with you to determine the scope of work and choice of roofing materials and provide a timely quote.

Agree on Scope and Schedule
We will work with you to finalise the scope of the project and determine a schedule that works for you.
Complete the Project

We will complete the project to the agreed upon schedule, while providing you with status updates and check-ins along the way.


After a thorough cleanup, we will do a complete post-inspection of the roofing project to make sure everything is top quality and completed to your expectations.

Reviews! Our Customers Love Us!

At Diamond Roofing and Construction Customer Service is our number 1 goal!  Check out some of our great 5 star reviews below and many more from the various Marketplaces!

See More of our 5 Star Reviews!
Frequently Asked Questions

This is probably the most frequent question we are asked, and the answer really depends on the specifics of your roof and what roofing system you will use to replace your roof. Rest assured that we

We will work with you to ensure that the disruption to you and your household is minimized. Roof tear-off and installation can be a noisy and dirty job, but rest assured that we will minimize the impacts as best as possible.

A great roofer can be found by starting with searching out those roofers with excellent reviews, both online, and through people you know. From there, meeting with a few and talking through their process and receiving a quote should give you not only a good idea of what kind of business they run, but a feeling of confidence in their skills and abilities.

There are a number of good options for the weather we have in the Pacific Northwest. By far the most common is composition (asphalt) shingles, but metal roofs are becoming ever more popular. If you have a flat or low angle roof you will need to look at flat roof solutions like TPO. Diamond Roofing will help guide you to the best options for your roof!

This is a common question here in the Pacific North West due to all the rain we get for what seems like 6 months straight! The answer is, that there are only certain steps in the roof replacement process that requires it not to be raining. Specifically, during the tear-off of your old roof is the only time your home is potentially exposed to rain. Once we have installed the waterproof underlayment, which can be done quickly, your home is waterproof once again. Diamond Roofing will make sure your home is fully protected from rain during your project.

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Service Areas Include
  • Seattle
  • Everett
  • Tacoma
  • Kirkland
  • Bellevue
  • Sammamish
  • Issaquah
  • And Many More!

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