Although not specifically WS, I’ve built several homes in WS and always use Legacy Roofing in Redmond. They are reasonable, reliable and licensed. Also, check with Master Builders Assoc at http://www.mbaks.com. Click box in top right corner titled “Start right here – Find a member”.
EDCA roofing, honest, clean, thorough, reasonable. Ask for Camilio to come give you an estimate. I’ve used him/them for several roofs and several more referrals and never anything but total satisfaction.
A Better Roofing has never let me down. Ask for Michael. A little expensive, but their service is impeccable, especially if you ever have any type of problem later on.
I would be happy to drop by and give you a bid. Our company is new to West Seattle please free to look us up at http://www.VertBuild.com. Or call us at 206.290.7062. We specialize in Green Construction.