Progress | Waterproof Decking By Seven Seas March 30, 2021 0 comment Construction Progress Photos | See these photos showing waterproofing at our West Hills deck. Color by @merkowaterproofing . . . . . . . #LAconstruction #construction #residentialconstruction #contractors #builders #losangeles #sanfernandovalley #westhills #wooddeck #deck #decking #balcony #secondfloor #waterproofing Share: