Roofing and Repairs


What we do

We provide high-quality Roof replacement, repairs, and roof Cleaning services to residential property owners. We are dedicated to creating a winning customer experience through the highest quality craftsmanship, technology, and by providing transparency throughout the entire process.

Our History

Our history started with our CEO and Founder Wilson Antonio Massambani. Over 7 years ago he started his journey in professional construction with roof cleaning and maintenance.  Today Mass & Mass is a certified roof builder with over 5 years experience.

Who we are

  • We’re Transparent
  • We’re Committed to Quality and Value
  • We’re Experienced


I was very pleased with Mass & Mass. They were very professional, kind, on time and clear with their communication. I would recommend them to anyone needing help with their roof.

Alana H.Seattle, WA

Wilson was thorough in his evaluation of my roof to identify possible causes of the leak. He also pointed out problems with the original roof installation that are causing problems now. He did not try to sell me on a complete roof replacement as other contractors had done. I found him trustworthy and fair with his pricing. He even offered to do additional work that I told him about and provided a better price than other quotes for that work. His crew was prompt, courteous, worked fast, did excellent work and took time to clean up everything.

Steve G.Snohomish, WA

When it comes to home repairs - like a roof repair - I'm always a bit squeamish about trusting a contractor to quote me honest prices for the honest amount of work that needs to be done. Mass & Mass was an excellent recommendation by Wilson came out to my home in Bothell and assessed my roof that was needing repairs to the ventilation hoods and other misc. repairs. Wilson not only gave me a fair quote, but was very honest with me about what he assessed (which I already knew from a previous inspection). That told me he was up front honest and immediately built trust with me.
He sent out his crew over a 3 day period because of the natural order of the work I requested and his crew was on time, reliable and did a top notch job on my home. It gave me a great feeling to know my house was now rock-solid in protection against leaks and the upcoming winter season. I cannot thank Mass & Mass enough for the excellent work they did for what I thought was a fair price. These guys are EXCELLENT! I'll request them again without any reservation for future work I have planned.

Charles C.Bothell, WA

Contact us for your free estimate today!