

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.
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

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 Before re-decking or extending, we evaluate your existing substructure for rot, shifting, or outdated fasteners.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.

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.
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.

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!
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
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.
Here’s what homeowners across California ask about upgrading their existing decks.
Yes, if the framing is in good condition. We’ll inspect and reinforce it before installing a new surface.
Extending or re-decking usually costs less than starting over, especially if the existing structure is sound.
Absolutely. We install composite over existing frames after confirming structural compatibility.
Yes, most extensions require permits. We handle the submission process and ensure compliance.

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

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

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

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

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

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

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

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

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

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

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

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

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

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

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

Innovation
Fresh, creative solutions.

Integrity
Honesty and transparency.

Excellence
Top-notch services.
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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