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Composite Deck Resurface (over existing frame)

The cedar deck off the back of the 1996 Bellevue house, structural frame still sound after a decade of careful maintenance but the surface boards are checked, split, and tired of being stained every three years. The 1989 pressure-treated deck off the Wedgwood craftsman, owner does not want to spend another fifteen years on stain-and-replace cycles and is ready for a no-stain composite. The 2003 Sammamish deck where the wood surface boards are failing but the structural joists, beams, and posts inspect sound. Composite deck resurface over an existing frame is the trade for replacing the entire deck surface with premium composite (Trex Transcend, TimberTech AZEK, Fiberon Sanctuary, or Azek Vintage) over a structural frame that has been inspected and confirmed sound — full board removal, exhaustive joist and hanger inspection with sister-up where needed, new composite installed with Cortex or Camo hidden fasteners, new composite fascia around the perimeter, new composite post caps on every visible post. From $28,000 for a small-to-medium deck (200-400 sq ft) with mid-tier composite to $65,000 for a large deck (600-800 sq ft) with premium composite, full hidden-fastener system, new fascia, and new post caps. Honest scope — the project assumes the structural frame inspection comes back sound or repairable within the joist scope. When the frame fails or the ledger and rim need to come apart, the project crosses into permit-required structural rebuild and routes to a licensed Washington L&I general contractor.

Composite deck resurface image — back deck of a Seattle Bellevue home with the original cedar boards removed, exposing the inspected and refreshed joist frame below, a stack of TimberTech AZEK composite boards staged on a tarp on the lawn, a Cortex hidden-fastener tool and a moisture meter on the framing.

Service

Editorial photo of a composite deck resurface in mid-install — fresh TimberTech AZEK composite boards being laid across an exposed inspected joist frame on a Seattle deck, a Cortex hidden-fastener collated plug tool and a stack of matching composite fascia staged on the framing.
Process

How Composite Deck Resurface Works

Six sequential steps from full board removal through frame inspection, sister-up, composite install, fascia and post caps, and the finish punch — the sequence we follow on every composite deck resurface project.

Step 1/6

Full Board Removal and Frame Exposure

All existing wood deck boards come off. Hidden-fastener systems get the appropriate extraction tool; nailed and screwed surfaces get the fasteners backed out or cut. Old boards staged for haul-off or recycle depending on condition. The structural frame becomes fully exposed for inspection.

Step 2/6

Exhaustive Frame Inspection from Above and Below

Every joist awl-probed along its full length and moisture-metered at the ledger end, mid-span, and rim end. Every joist hanger visually checked for rust-through. Ledger fastener-type and flashing inspection with rim-joist moisture reading. Beam and post visual check. Written punch list and dated photos before any new board goes down.

Step 3/6

Joist Sister-Up and Hanger Replacement Where Needed

Compromised joists sistered with matched pressure-treated stock and structural screws on full bearing. Failed Simpson hangers replaced with ZMAX or stainless. Frame work itemized separately on the quote. Frame failures beyond the joist scope route to a licensed Washington L&I GC.

Step 4/6

New Composite Boards with Cortex or Camo Hidden Fasteners

Owner-selected composite brand and line (Trex Transcend, TimberTech AZEK, Fiberon Sanctuary, Azek Vintage, etc.) installed using the brand-matched hidden-fastener system. Cortex collated plugs top-down, Camo blind-screw edge-driven, FastenMaster slotted clips between boards. Board orientation per owner selection.

Step 5/6

New Composite Fascia and Post Caps

Fresh composite fascia board (matched brand and color line) around the entire perimeter, mitred at corners or scarf-joined for long runs, fastened with stainless or color-matched composite fasteners. Composite post caps install on every visible post. Full-height post wraps optional add-on.

Step 6/6

Finish Punch Walkthrough and Dated Photo Report

Final walkthrough with the homeowner. Every board confirmed flush, every hidden fastener confirmed seated, every fascia mitre confirmed tight, every post cap confirmed level. Dated photo report covers the inspection, the sister-up, the hidden-fastener install, the fascia, and the post caps. One-year project warranty on the carpentry; composite manufacturer warranty registered to the homeowner.

Pricing

Composite Deck Resurface Pricing

Final pricing depends on deck square footage, the composite brand and line (mid-tier versus premium), the hidden-fastener system, whether new fascia and post caps are in scope, and the extent of joist sister-up and hanger replacement work uncovered when the existing boards come off. Frame failures beyond the joist scope route to a licensed Washington L&I GC and are quoted as a pass-through. Request a free estimate for an accurate quote.

Tell us the deck size, the composite brand you want, and we will quote the resurface — including the frame inspection budget so you see the worst-case number before we start.

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Why Handis for Composite Deck Resurface
Trust

Why Handis for Composite Deck Resurface

A composite resurface over a still-sound frame is the most cost-effective way to get fifteen to twenty more years out of a deck that already has the right footprint, the right height off grade, and the right structural sizing. The decision matrix runs like this — if the frame is sound, resurface over the existing structure and save the cost of a full re-frame. If the frame is failing, the project is a full rebuild and routes to a permit-GC. The inspection that decides which side of that line you are on comes off the moment the existing boards lift; the frame inspection budget is included in the quote so the worst-case scenario is visible before we start. We will not tell you the frame is sound when it is not, and we will not tell you the frame is failing to push you into a bigger scope. The reading is what it is and the report goes to you in writing.

Estimate

Tell us the deck size in square feet, the height off grade (single-tier or multi-tier), the existing board material (cedar, pressure-treated, hardwood), the composite brand and line you have in mind (Trex Transcend, TimberTech AZEK, Fiberon Sanctuary, Azek Vintage — or ask us to recommend), and any add-ons you want (picture-frame perimeter, post wraps, fascia color, post-cap style). Send phone photos of the deck from multiple angles plus a few flashlight shots from underneath if you can. We will quote the resurface with frame inspection budget visible, so you see the worst-case scenario before any board comes off.

Service cost estimate illustration
Reviews

Customer Reviews

Recent composite deck resurface reviews from verified Seattle-area customers.

1998 cedar deck off our Mercer Island house, 420 sq ft, the cedar surface was tired but the frame was solid. Handis quoted a TimberTech AZEK resurface with picture-frame perimeter, Cortex hidden fasteners, new fascia, and post caps. Frame inspection came back clean — they sistered one joist as a precaution and replaced eight hangers with ZMAX. Five working days. The deck looks like a furniture store and the project ran exactly to the worst-case quote.

Patrick and Ellen H., Medium Composite Resurface

Big two-tier deck off our Sammamish house, 720 sq ft total. We wanted Trex Transcend on the main level and the upper landing. Handis ran the full project — full board removal, frame inspection (which found three joists needing sister-up and 14 hangers needing replacement), new boards with Cortex throughout, new fascia, new post caps, post wraps on the eight visible posts. Eleven working days. Coordinated cleanly with our schedule. Premium build, premium result.

Daniel and Robin R., Large Composite Resurface with Post Wraps

1989 pressure-treated deck off our Wedgwood craftsman, 280 sq ft. We were considering a full rebuild but Handis was honest that the frame was still sound and a composite resurface would be the right scope. Mid-tier Trex Enhance, Cortex hidden fasteners, new fascia, new post caps. Six working days. The honest scope call saved us probably $20,000 versus a full rebuild we did not need.

Erica T., Small Composite Resurface (Honest Scope)

2005 PT deck off our Bellevue house, 480 sq ft. The frame inspection came back with bad news — two joists past sister-up, the ledger crossing into rim-joist work, the project had to escalate to a permit-GC. Handis was honest the moment the inspection came back, named a licensed Washington L&I GC, the GC came in with engineer drawings, did the structural portion, then Handis returned to do the composite. Four months total. The honest handoff was the difference between a successful project and a disaster.

Frank B., Composite Resurface with GC Structural Escalation

Smaller Fiberon Concordia resurface on our Capitol Hill house, 250 sq ft. Picture-frame perimeter with field boards perpendicular. Cortex hidden fasteners, color-matched plugs. Frame was clean — one hanger replaced. Four working days. Premium finish on a smaller deck where the cost ratio still made sense. Five-year warranty registration paperwork was handed over with the project closeout.

Sasha L., Small Premium Composite Resurface
FAQ

Frequently Asked Questions

Common questions about Handis composite deck resurface over an existing frame — pricing, scope, composite brands, frame inspection, and the GC handoff for structural escalation.

How much does composite deck resurface cost?
A small-to-medium deck (200-400 sq ft) with mid-tier composite (Trex Enhance, TimberTech PRO, Fiberon Concordia), Cortex or Camo hidden fasteners, new fascia, and post caps starts at $28,000 with frame sister-up budget for up to 2 joists included. A medium deck (300-500 sq ft) with premium composite (Trex Transcend, TimberTech AZEK, Fiberon Sanctuary, Azek Vintage) is $38,000. A large deck (500-700 sq ft) with picture-frame perimeter is $52,000. A large premium full-custom build (600-800 sq ft with picture-frame, post wraps, and frame budget for 5+ joists) is $65,000. Frame sister-up beyond the included budget is $1,200 per joist; hanger replacement is $150 per hanger; post wraps are $950 per post; picture-frame perimeter add-on is $3,500.
When does composite resurface make sense versus a full rebuild?
Composite resurface makes sense when the existing structural frame (joists, beams, posts, footings, ledger) is sound or repairable within the joist and substructure repair scope — and the deck footprint, height off grade, and structural sizing are what you want long-term. The math saves the cost of a full re-frame ($30,000 to $50,000 depending on deck size) compared to demolishing and rebuilding from footings up. A full rebuild makes sense when the frame is failing in multiple ways, when you want a different deck footprint or height, when the ledger has to come apart for rim-joist work anyway, or when local code has changed enough that the existing frame would not pass current inspection. We tell you on the inspection visit which side of the line your deck is on.
What composite brands do you install?
All major brands sold in the PNW market — Trex (Transcend premium, Enhance mid-tier), TimberTech (AZEK premium full-cell PVC, PRO mid-tier wood-flour composite), Fiberon (Sanctuary premium, Concordia mid-tier), and Azek (Vintage premium). We will recommend based on your color preference, your budget, and your hidden-fastener choice. Premium full-cell PVC (TimberTech AZEK, Azek Vintage) has the longest manufacturer warranty (typically 50 years) and the most stable color and fade performance. Mid-tier wood-flour composites (Trex Enhance, TimberTech PRO, Fiberon Concordia) carry 25-to-30-year warranties and look great at a meaningfully lower price.
What if you find frame problems when you pull the boards?
We tell you immediately with photos and a moisture meter reading. Compromised joists within the joist and substructure repair scope (single sister-up, multi-joist sister-up, hanger replacement) get added to the project at the per-joist or per-hanger add-on rate already on your quote — the worst-case scenario is visible before we start. When the frame failure exceeds the joist scope (multiple joists rotted past sister-up, ledger crossing into rim-joist replacement, beams or posts compromised, footings failing), the project crosses into permit-required structural rebuild and routes to a licensed Washington L&I general contractor. We pause the composite scope, the homeowner deposit is protected by the contract, the GC handles the structural portion with engineer-stamped drawings, and we resume the composite install over the new frame after the structural portion closes.
What is the difference between Cortex, Camo, and FastenMaster hidden fasteners?
Cortex (FastenMaster product line) uses a collated screw that drives top-down into a counterbore in the deck board, then a matching color plug glued or pressed into the counterbore — finished deck shows a recessed plug roughly the size of a coin in the field of each board. Camo blind-screw is an edge-driven system — the screw drives at an angle from the side of the board into the joist below, completely invisible from above. FastenMaster slotted clips (and similar TigerClaw, Trex Hideaway systems) are between-board edge clips that hold each board to the joist with no visible fastener on top. Brand-matched plugs and clips are critical — Cortex makes plugs for every major composite brand, but the color and the diameter must match the deck-board line. We carry the standard Trex, TimberTech, Fiberon, and Azek plug colors on the truck.
How long does the project take?
A small-to-medium resurface (200-400 sq ft) runs 5 to 7 working days. A medium with premium composite (300-500 sq ft) runs 7 to 9 working days. A large with picture-frame perimeter (500-700 sq ft) runs 9 to 12 working days. A large premium full-custom build (600-800 sq ft) runs 12 to 15 working days. Frame escalation to a permit-GC adds 3 to 6 weeks for engineer drawings, permit issuance, and the structural rebuild portion before the composite resumes. Composite material lead time is 1 to 3 weeks from order; we plan the start date to the material arrival.
Can I keep using parts of the deck during the work?
No — the entire deck surface is offline for the duration of the resurface. The deck stays flagged off from the start of board removal through the finish punch. Most homeowners use the front yard, the patio, or an alternate entry during the work. For multi-tier decks, we can sometimes phase the upper level and the lower level separately so one tier stays usable while the other is being rebuilt — that adds a few days to the schedule but is feasible. The phasing option is on the quote when it fits the deck.
Does the composite material carry its own warranty?
Yes. Each major composite brand carries a manufacturer warranty of 25 to 50 years on the boards covering structural integrity, fade resistance, and stain resistance. The warranty is in the manufacturer's name and registered to the homeowner at install — we provide the product serial numbers, the registration paperwork, and the install date documentation at project closeout. Our Handis project warranty covers the carpentry (board flush, hidden-fastener seat, fascia mitre, post-cap level, sister-up integrity, hanger fastening) for one year. The composite warranty covers the board itself for the manufacturer's term.
Do you do permits for composite resurface work?
For composite resurface over an existing sound frame — typically no permit required as a like-for-like deck-surface replacement; we will check the current code interpretation for the specific jurisdiction (Seattle, Bellevue, Redmond, Kirkland each have slightly different deck-repair permit thresholds). For composite resurface with significant joist sister-up or hanger replacement — usually still no permit required as repair work, but we will confirm. For any scope requiring rim-joist replacement, full re-frame, footing replacement, or an engineer-stamped drawing — yes, a Washington L&I building permit is required and is pulled by the licensed GC as the responsible licensed party. Handis does not pull structural permits ourselves.
Do you cover homes outside Seattle proper?
Yes — most of the Puget Sound region is in service area, from north Seattle and Shoreline through Bellevue, Redmond, Kirkland, Issaquah, Sammamish, Renton, Tukwila, Burien, and south to Federal Way and Auburn. Composite resurface projects on the I-90 corridor (North Bend, Snoqualmie, Cle Elum) and Hood Canal property are covered with a travel premium added to the project price; we will name it on the quote before you sign. Outside that radius we will tell you on the call if the math works.
Is the work guaranteed?
Yes. Handis carries general liability and workers' compensation; every technician has cleared a background screening before the first job. The carpentry — board flush, hidden-fastener seat, fascia mitre, post-cap level, sister-up integrity, hanger fastening — carries a one-year project warranty. The composite material warranty is the manufacturer's responsibility and runs longer (25 to 50 years on most major brands), in the manufacturer's name and registered to the homeowner. The licensed-GC and engineer portions on any structural escalation carry their own Washington L&I-trade warranty, also named on the quote so you know whom to call for what.

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