About Gralton Glass
WBE-certified. Bellevue-based. We deliver glass and glazing for offices, apartments, condos, and homes — to the same standards the region's leading general contractors expect.
Built for the Pacific Northwest
Gralton Glass delivers glass and glazing across the Pacific Northwest for multifamily, condominium, single-family, and commercial clients. The company traces its roots to a business Kate Gralton founded in 2019 (formerly Aviatrix), which became Gralton Glass LLC in fall 2025 with a sharpened focus on commercial glazing and related general contracting capabilities across Western Washington—backed by her 18+ years in complex construction and service businesses. We combine technical expertise with a commitment to quality and schedule — the same standards the region's leading contractors demand.
As a certified Women-Owned Business (WBE), we bring diversity and capability to every project. Our team is trained on the latest installation practices, safety protocols, and energy-efficient systems. We are a PSE Trade Ally and members of the Washington Glass Association and the National Association of Women in Construction (NAWIC).
WBE Certified · W2F0031050Much of our early pipeline came through the PSE Trade Ally program — real leads and conversations with owners and efficiency-focused work across the region. Washington State WBE certification is a recent milestone, and it has already opened doors with major general contractors. We are actively estimating and bidding, including opportunities with firms such as GLY Construction, Clark Construction, and Skanska. In the interest of transparency: we have not yet been awarded a project with those contractors; certification is new, proposals are in motion, and we are working to turn that interest into partnered work. From curtain wall and storefronts to energy services, windows, and custom glazing, we also support condo associations, developers, and homeowners with residential glazing needs.
Get in TouchLeadership
Katherine ("Kate") Gralton — Founder & Owner
Kate Gralton brings 18+ years in construction, roofing, and general contracting to Gralton Glass. She founded the business in 2019 as Aviatrix and renamed it Gralton Glass LLC in fall 2025, sharpening focus on commercial glazing and general contracting across Western Washington. The company is a certified Women-Owned Business (WBE) and PSE Trade Ally, with active bids and teaming discussions underway with leading regional GCs including GLY Construction, Clark Construction, and Skanska.
Kate leads from the field as much as the office — bidding, estimating, and directly managing a twelve-person installation team while running the full sales cycle. Under her leadership, the company has built disciplined operating systems across finance, estimating, project management, and field operations.
She holds a B.S. in Business Administration from the University of Wisconsin–Milwaukee, is a licensed thermographer and private pilot, and is an active member of WACAI (Washington State Chapter).
Bob Tatum — Project Manager
Bob Tatum brings over 50 years in the window and glass industry to Gralton Glass, where he serves as Project Manager. He joined the team in March 2026 and oversees field execution, schedule, and quality across commercial and residential glazing projects.
His half-century in the trade spans every system the company installs — curtain wall, storefronts, custom glazing, and energy-efficient windows — and that depth shows up in cleaner submittals, sharper crew coordination, and fewer surprises on site.
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Our Office
14205 SE 36th St. Ste. 100, Bellevue, WA 98006
(425) 466-3390
kate@quantumenergy.group
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