Diamond Roofing, Inc. has served the Puget Sound's commercial and residential communities since 1986. We have built our reputation on integrity, quality, and value. We have the experience and capacity to handle every flat and low-slope roofing need. We research both the products and the manufactures to ensure quality and strength of our warranty. Our installers are fully trained and certified for flat and low-slope installations. We are licensed, bonded and insured. We are in good standing with the Better Business Bureau and the Master Builders of King & Snohomish Counties.How to choose a contractor When choosing a contractor, knowing the right questions to ask and having the right resources can assist you in hiring a professional who will do the job the right time and leave you with peace of mind.