Alexandria Builders is a licensed, bonded, and insured deck contractor (WA License #ALEXABL757D1) building and restoring decks across Seattle and the Eastside. Whether you need a brand-new composite deck with glass railings, a cedar deck rebuilt on sound framing, or an honest answer about whether your existing deck is safe, you will find the service below. Every project starts with a free on-site estimate and a fixed, written quote.
Deck Building and Restoration Services in Seattle
New Deck Construction
Composite Decking
Trex, TimberTech, and Fiberon decks that shrug off Seattle rain — no staining, no rot, 25–50 year warranties.
Wood Decks
Cedar, pressure-treated, and tropical hardwood decks with the warmth only real wood gives.
Stone and Paver Decks
Porcelain pavers on a pedestal or framed system for a modern, zero-maintenance surface.
Railings and Lighting
Aluminum, cable, glass, and composite railings plus low-voltage LED stair and post lighting, installed to code.
Deck Design and Planning
Free 3D design, engineering to the Seattle Residential Code, and permits handled start to finish.
Rooftop Decks
Structural and waterproofing know-how for rooftop and over-living-space decks in the city.
Restoration and Repair
Structural Reinforcement
Ledger, beam, post, and footing repairs that make an aging deck safe again.
Board Replacement
Swap rotted or split boards — or resurface the whole deck on its existing frame.
Staining and Sealing
Clean, brighten, and protect wood decks with finishes that survive PNW winters.
Washing and Sanding
Low-pressure washing, stripping, and sanding — the right prep before any finish.
Maintenance Consultations
A builder’s inspection with a written photo report: fix now, fix this season, plan for.
Garden Terraces
Ground-level platforms, steps, and terraces that tie the house to the yard.
Not sure which service you need? That is what the free on-site visit is for. We look at the deck, tell you what it needs, and quote only that. Call (425) 866-0594.