World Glass Window Cleaning

We're World Glass Window Cleaning, a locally owned window cleaning and exterior cleaning company based in Seattle, Washington. Owner and founder Zach Gannis is a second-generation window cleaner who learned the trade working alongside his father, a career professional, before starting the business in 2014. As a solo owner-operator, Zach handles every job personally, so the person who quotes your work is the same person who does it. We take care of both homes and commercial properties. Our services include interior and exterior residential window cleaning, commercial window cleaning for storefronts, condos, rentals, and offices, gutter cleaning with full downspout checks, and solar panel cleaning. We also offer soft wash house washing that uses low pressure to protect siding, paint, and wood, along with pressure washing for driveways, patios, and siding, roof soft washing to safely remove moss and algae, awning cleaning, and metal roof cleaning. We serve Seattle and communities across the Eastside and north end, including Bellevue, Kirkland, Redmond, Shoreline, Edmonds, Mercer Island, Renton, and many more. We're licensed and back our work with a 100% satisfaction guarantee, which means we make sure the job is done right, every time. Our reputation is built on careful, dependable work and clear communication from the first call through the finished job. If your windows, gutters, roof, or siding need attention, reach out and we'll walk you through your options and provide a straightforward quote based on your property. We're here to make your home or business look its best.