Upgrade. Expand. Rebuild. Without Starting Over.

Deck Extensions & Re-Decking in Washington

Want More Deck — or a Better One?

We Extend and Resurface Existing Decks Across Washington

Whether you need more square footage or a fresh surface, Alliance Deck Builders makes it easy. We inspect your current frame, confirm it’s solid, then build a safe extension or install new boards. You’ll get more space, better materials, and a refreshed look — without the full cost of starting over.

Two Great Options. One Solid Team.

We Extend Decks or Replace Worn Surfaces

Extensions give you more room to relax, dine, or host — all while keeping the original deck structure. Re-decking swaps out old boards for new wood or composite, using the same frame if it’s up to code. Both save time and money compared to total replacement.

Composite or wood deck resurfacing

Add stairs, landings, or wraparound space

Framing inspection and repairs included

Crew removing old cedar boards and installing composite re-decking on extended platform

Not All Decks Need a Demo

We Reuse What’s Solid — and Rebuild the Rest

Re-decking works if your frame is still in good condition. We start with a full check of joists, beams, posts, and footings. If anything’s weak, we replace it. Then we add new decking boards — composite or wood — plus matching stairs and railings. You keep the bones. We upgrade the rest.

Deck extension with new framing connected to existing platform and matching surface boards

Your Deck, Just Bigger and Better

We Seamlessly Add to Existing Structures

Adding a section to your deck? We frame it to match — height, flow, and finish. Whether you’re creating a new lounge zone, grilling nook, or wraparound walkout, we make it look like it’s always been there. You’ll get more space, better function, and consistent style.

Re-Decking Is Smart — and Budget-Friendly

Why Replace the Frame if It’s Still Strong?

If your deck’s structure is safe and stable, there’s no reason to start from scratch. Re-decking lets you update the surface, railings, and stairs while keeping the original bones. It costs less, takes less time, and gives you the same great look and feel. We’ll let you know if your framing qualifies — and show you all the options.

Re-decked platform with new composite surface and existing frame preserved

Why Homeowners Choose Our Re-Decks and Add-Ons

Full Framing Inspection: We check every post, beam, and joist before reusing your frame.

Seamless Integration: Our extensions match your existing deck height, slope, and style.

Faster Than a Rebuild: Most re-decking projects are done in under a week.

Composite or Wood Optionsd: Choose from top brands or fresh cedar to update your surface.

Clear, Fair Pricing: You’ll get a simple quote for re-decking, extension, or both.

Don't worry, we can help!

Deck Extensions That Feel Built-In

Our extensions never feel like afterthoughts. We match board direction, framing patterns, spacing, and stain or composite color. Whether you're adding 4 feet or 14, it will blend in with your existing deck — and give you more room to enjoy the outdoors.

Match existing materials or upgrade all

Add features like stairs, benches, or privacy panels

Built to code with full permit support

Not Sure What Your Deck Needs?

We’ll Inspect It and Give You Options

Sometimes a full rebuild isn’t necessary. Sometimes it is. That’s why we start with a clear evaluation — showing you what can be reused, what needs repair, and what might need replacing soon. We’ll walk you through extension layouts and board upgrade options so you can make the right call. No pressure. Just facts.