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Deck Building · Hillsboro, OR

Deck Building in Hillsboro, OR

Hillsboro's 2000s–2015 housing boom produced a large cohort of pressure-treated wood decks now reaching the 15–20 year replacement threshold simultaneously — in one of the wettest, most wind-exposed positions in the metro. Left Coast Exteriors replaces aging Hillsboro decks with TimberTech and Fiberon composite systems that perform in open-valley high-rainfall conditions without the ongoing maintenance wood demands. Oregon CCB License 217914.

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TimberTech Authorized Dealer Fiberon Authorized Dealer TimberTech & Fiberon Authorized Dealer
TimberTech & Fiberon Authorized
Licensed in WA & OR
Free Structural Assessment
Itemized Estimates
Structural Warranty
Know the Warning Signs

Signs Your Hillsboro Home Needs Deck Building

  • 2000s–2015 wood decks reaching 15–20 year replacement threshold: Hillsboro's tech-era housing boom produced a large wave of pressure-treated wood decks that are now hitting simultaneous end-of-life. The open-valley rainfall exposure that makes Hillsboro one of the wetter metro cities accelerates wood deterioration faster than in more sheltered neighborhoods — 40 inches of annual rainfall creates near-continuous wet conditions for Pacific Northwest wood decks.
  • Open-valley wind-driven rain saturates deck boards and ledger connections: Hillsboro's west-facing position exposes deck surfaces to the same wind-driven rain that attacks siding — horizontal rain driven into deck board grooves and ledger connection gaps. Pressure-treated lumber absorbs and holds this wind-driven moisture, creating the sustained wet conditions that drive surface checking, splitting, and ledger rot at the house connection.
  • Post rot from high-rainfall elevated soil moisture: Hillsboro's open-valley position receives 40 inches of annual rainfall with minimal interception from structures or trees. This sustained rainfall maintains elevated soil moisture that wicks into deck posts at ground contact — accelerating the base rot that removes structural capacity from posts and requires full structural replacement in aging deck projects.
  • Surface splitting and splintering on aging pressure-treated boards: After 15–20 years in Hillsboro's wet-dry cycling climate, pressure-treated deck boards show surface checking, splitting, and splintering that creates both a safety hazard and an accelerated moisture pathway into the board interior. Each wet season opens these cracks further, driving moisture deeper into the wood and accelerating structural degradation.

What Deck Building Delivers for Hillsboro Homeowners

Left Coast Exteriors serves Hillsboro, OR as a licensed, insured exterior remodeling contractor — WA License LEFTCCE810B3, OR CCB# 217914. Free written estimates. Permits handled. No surprises after the project starts.

Deck Building in Hillsboro, OR by Left Coast Exteriors
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No obligation. Usually within 1 business day.
Call or Text
360-605-0250
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Licensed & Insured in WA & OR
TimberTech & Fiberon Authorized Dealer
Structural Warranty on Every Build
Local Crews, No Subcontractors
Making the Right Call

Repair or Replace? The Honest Answer.

Not every deck problem requires full replacement. Full deck assessment guide →

When Repair Makes Sense

Targeted Fix

  • A few isolated surface boards with localized rot, structure sound
  • Railing replacement on an otherwise solid deck frame
  • Hardware, post cap, or stair tread replacement
  • Deck under 10 years old with limited, non-structural damage
When Replacement Is the Right Move

Full Replacement

  • Widespread surface rot across more than 25% of deck boards
  • Ledger board rot or compromised ledger-to-house connection
  • Post or beam degradation at ground contact or concrete footings
  • Deck over 20 years old with wood past its treatment life
Materials We Use

Composite Decking Built for Pacific Northwest Climate

We build with TimberTech and Fiberon composite systems. Two tiers cover most deck projects. Full composite decking guide →

Top Tier

TimberTech AZEK Premium PVC

TimberTech AZEK is a full PVC decking system — not wood-composite, but solid PVC throughout. Zero wood fiber content means nothing for moisture to degrade. AZEK is backed by TimberTech's 30-year fade and stain warranty and lifetime limited structural warranty. For homeowners who want the best-performing, lowest-maintenance deck available — one that will genuinely outlast the home's other exterior systems.

Mid-Grade Composite

Fiberon Composite Decking

Fiberon composite decking blends wood fiber with PVC and protective polymer capping — a proven mid-grade composite that performs well in PNW moisture conditions and delivers a natural wood-like appearance at a lower price point than full PVC. Fiberon's capped composite resists moisture, fading, and staining far better than pressure-treated wood. Backed by Fiberon's 25-year warranty.

Hillsboro, OR Context

Why Composite Decking Matters for Hillsboro Homeowners

Hillsboro's open-valley rainfall exposure and aging 2000s deck stock create a clear case for composite replacement. These are the three reasons it matters most here.

Open-Valley Rainfall Means Zero Tolerance for Wood Fiber in Decking

Hillsboro's 40 inches of annual rainfall and open-valley wind-driven rain exposure create a high-moisture deck environment. TimberTech AZEK full PVC has zero wood fiber content — nothing for moisture to degrade regardless of how sustained or wind-driven the exposure. Fiberon composite provides similar resistance at a mid-grade price point.

2000s Deck Stock Hitting Replacement Age Simultaneously

The tech-era construction wave created a large cohort of Hillsboro decks now reaching simultaneous end-of-life. Left Coast Exteriors handles structural assessment, City of Hillsboro Building Department permit coordination, and composite installation in a single project scope. Oregon CCB License 217914.

Structural Warranty on Every Build

Every deck we build carries a structural warranty backed by a closed Hillsboro building permit and complete documentation. We assess the existing framing condition before composite surface installation — replacing compromised posts, ledger connections, and beam sections where needed.

Why Left Coast Exteriors

Why Homeowners Choose Us for Deck Replacement

TimberTech & Fiberon Authorized Dealer

Authorized Dealer status means factory-trained installation crews and full manufacturer warranty on both product and workmanship. Non-authorized installers cannot offer this warranty backing — it's only available through the dealer network.

Structural Assessment Before Any Composite Goes On

Composite surface on a compromised structure is not an upgrade — it's a problem deferred. We assess the existing framing, ledger connection, and post condition, document what we find, and address structural issues before installation begins.

Permits and Inspections — We Handle Everything

Deck construction and replacement requires building permits in every jurisdiction we serve. We manage the permit application, structural documentation, and inspection scheduling. The finished deck is inspected and closed to code.

How It Works

Our Deck Replacement Process

1

Free Structural Assessment

We inspect existing framing, ledger connection, post condition, and footings. Written assessment with photos documents what's structurally sound and what requires replacement.

2

Written Itemized Estimate

Estimate covers composite materials, structural framing work, permit, railings, stairs, and any post or ledger remediation identified in the assessment.

3

Permit and Scheduling

We manage the permit application and scheduling. Most deck replacements complete in 3–7 days depending on size and structural complexity.

4

Structural Work and Installation

Existing decking removed, framing assessed and remediated as needed, composite decking installed to manufacturer specification with proper ledger flashing.

5

Inspection and Warranty

Building department inspection completed and permit closed. Written structural warranty and manufacturer product warranty documentation provided.

Common Questions

Frequently Asked Questions — Deck Building in Hillsboro, OR

Other Services

Other Exterior Services We Provide

Deck projects often connect to adjacent exterior improvements.

Siding Installation

Deck removal frequently exposes the condition of siding at the ledger zone and the first courses above grade — the most moisture-vulnerable section of any exterior wall. James Hardie fiber cement siding addresses that vulnerability permanently, and combines efficiently with deck work during the same site mobilization.

Siding Installation in Hillsboro
Window Replacement

Homeowners investing in outdoor living improvements often find that adjacent windows and sliding doors need the same attention. ProVia window and door replacement pairs naturally with a deck project.

Window Replacement in Hillsboro
Roof Replacement

Deck replacement and roof assessment often surface shared findings: aging fasteners, compromised soffit and fascia, and framing that has been cycling through freeze-thaw stress for decades. Malarkey Emerald Premium roofing combined with a composite deck replacement addresses the full exterior water management system.

Roof Replacement in Hillsboro

Financing Available

Build Your Deck Now. Pay Over Time.

Composite deck replacement is a meaningful home investment that pays back in decades of maintenance-free outdoor living. Flexible financing lets you move forward with the right material specification.

0%Intro APR Options
$0Down for Qualified Buyers
12–84Month Terms
Ask About Financing

Average Hillsboro deck building project: $18,000–$35,000. Free written estimate before any commitment.

Financing offered through third-party lenders. Subject to credit approval. Ask your project consultant for current terms.

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Serving Hillsboro, OR and Surrounding Washington County Communities

We serve Hillsboro and surrounding communities. View our full service area →

Aloha Beaverton, OR Forest Grove Cornelius North Plains Tigard, OR Portland, OR

Ready for a Composite Deck Built for Hillsboro's Open-Valley Climate?

Free structural assessment. Written itemized estimate. City of Hillsboro permits handled. TimberTech and Fiberon authorized. Oregon CCB# 217914.

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