Add-On, Reinforce, and Renew

Deck Extensions & Re-Decking in California

More Room. More Value.

Expand Your Deck Without Starting Over

Need more space for entertaining, grilling, or relaxing? We design and build deck extensions that integrate smoothly with your current structure. Whether you're adding square footage, wrapping around a pool, or creating access from a second door, we ensure the new layout is code-compliant and structurally sound. We reinforce or replace framing as needed to support the expansion and apply finishes that match or upgrade your existing materials.

Give Your Deck a Second Life

When Re-Decking Makes Sense

If your deck's structure is in good shape but the surface boards are cracking, fading, or failing, re-decking is a smart solution. We remove the old surface, inspect and reinforce the framing, and install new decking—wood or composite—for a refreshed look and better durability. Re-decking costs less than a total rebuild and gives your space a modern finish with minimal disruption.

  • Replace boards with composite or wood

  • Reinforce structure without full rebuild

  • Add railings, stairs, or lighting upgrades

California re-decking project with composite overlay on existing frame

Repair It Right the First Time

Deck Framing, Footings & Code Compliance

Our team doesn’t just cover up problems—we fix them. Before re-decking or extending, we evaluate your existing substructure for rot, shifting, or outdated fasteners. If repairs are needed, we upgrade joists, ledger connections, and posts using modern, code-approved methods. You’ll get a deck that looks and feels brand new—and stands up to years of use.

extended deck with matching railings and pergola in California backyard

Add Space Without Starting from Scratch

Deck Extensions Done Right

Deck extensions are ideal for growing families or expanding outdoor needs. Whether you're adding steps down to a yard, extending around a hot tub, or adding a pergola-covered zone, we’ll blend new sections into the old with professional precision. Our builders match board spacing, railing style, and finishes for a cohesive look that feels fully intentional.

Composite or Wood—Your Choice

Surface Options for Deck Rebuilds

Choose from premium composite boards like Trex, TimberTech, and Deckorators for long-term durability with low upkeep, or go with pressure-treated pine or cedar for a classic wood look. We'll help you select the best surface for your budget, style, and California climate zone. Our re-decking services include matching fascia, post caps, and railings for a fully finished result.

re-decked patio in California using Trex composite and metal railings

Why Californians Call Us for Deck Repairs

  • Seamless Deck Add-Ons: Extensions that look like they were part of the original design.

  • Full Re-Decking Services: Replace boards, rails, and stairs without changing the frame.

  • Upgrades for Function & Code: Add lighting, landings, and railing to meet today’s safety standards.

  • Licensed California Builders: All work permitted and built by insured pros with 10+ years experience.

  • Fast Turnaround on Repairs: Most projects completed in days, not weeks.

Don't worry, we can help!

Deck Repairs that Stick

Don’t waste time and money on patchwork fixes. We assess the full structure, identify underlying issues, and give you straightforward options to extend your deck or replace the surface right. Our work is built to last, backed by warranty, and finished with precision.

  • Licensed and insured across California

  • 10-year structural warranty

  • Modern, code-compliant upgrades

Ready to Extend or Restore?

Start With a Free Estimate

We offer on-site evaluations anywhere in our California service areas. Whether you're planning a small extension or full re-decking, we’ll inspect the current deck, measure your space, and walk you through all options—no pressure.

Common Deck Repair Questions

FAQ: Deck Extensions & Re-Decking

Here’s what homeowners across California ask about upgrading their existing decks.

Can my old deck be re-decked?

Yes, if the framing is in good condition. We’ll inspect and reinforce it before installing a new surface.

Is it cheaper to extend my deck or rebuild it?

Extending or re-decking usually costs less than starting over, especially if the existing structure is sound.

Can I switch from wood to composite when re-decking?

Absolutely. We install composite over existing frames after confirming structural compatibility.

Do I need permits to extend a deck in California?

Yes, most extensions require permits. We handle the submission process and ensure compliance.

Keyword City

Our Full Line of Deck & Outdoor Services

Custom deck design blueprints and framing

Deck Design & Construction

Every deck starts with a plan. We design and build custom decks tailored to your space, style, and structural needs.

Composite deck boards being installed

Composite Deck Installation

We install Trex, TimberTech, and other composite brands for beautiful, weather-resistant, low-maintenance outdoor surfaces.

Cedar deck boards laid over joists

Wood Deck Building

Classic wood decks built with pressure-treated lumber or cedar. Durable, natural, and custom cut for any property type.

Repaired deck joists with metal connectors

Deck Repair & Structural Reinforcement

We assess and reinforce aging decks for safety and stability using upgraded framing, fasteners, and supports.

Wood deck being sanded and stained

Deck Restoration & Refinishing

Bring life back to old wood. We sand, stain, seal, and restore weathered decks for renewed beauty and protection.

Two-level deck with stairs and landings

Multi-Level Deck Construction

Add dimension to your outdoor space with multi-level decking built for slope, function, and scenic views.

Deck extension added to existing structure

Deck Extensions & Re-Decking

Expand your living space or replace old boards with new wood or composite — no need to start from scratch.

Covered wood deck with shingled roof

Covered Decks & Patio Roofs

Stay shaded and dry with custom patio roofs and covered deck structures built for comfort and style.

Screened porch with composite floor

Screened-In Porches & Sunrooms

We build screened porches and enclosed sunrooms that blend with your home and protect from bugs and weather.

Outdoor kitchen built on composite deck

Outdoor Kitchens & Grilling Stations

Design-build solutions for outdoor cooking, from grill islands to full kitchens with counters, sinks, and storage.

Freestanding pergola on backyard deck

Pergolas, Gazebos & Arbors

Custom wood or composite shade structures for beauty, comfort, and added dimension to your outdoor space.

Composite pool deck with built-in hot tub

Pool Deck & Hot Tub Surrounds

Safe, slip-resistant decking built around pools or spas with water-rated materials and reinforced supports.

Detached shed with small front deck

Detached Garages & Sheds

We build accessory structures like sheds and small garages, finished with matching decks or porch landings.

Wood deck stairs with custom railing

Custom Deck Railings & Stairs

We craft stairs and railings that meet code, match design style, and improve deck safety and function.

Rooftop commercial deck with patio seating

Commercial Deck Projects (Restaurants, Rooftops, etc.)

We build code-compliant decks for restaurants, rooftops, and commercial spaces — including ramps and ADA access.

Deck extension blueprint icon California

Innovation

Fresh, creative solutions.

Surface board removal and install icon

Integrity

Honesty and transparency.

Permit-approved deck plans icon

Excellence

Top-notch services.

Let’s Build Something Great

From the first call to final inspection, Alliance Deck Builders of California delivers trusted craftsmanship, clear communication, and decks that hold up to real life. Whether you’re planning a quiet retreat, an entertainer’s patio, or a full commercial rooftop, we’re ready to design and build it right.

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