For most Washington homes, the deck replacement cost ranges between $7,000 and $30,000, or about $30–$60 per square foot installed. The final cost depends on several factors—like deck size, materials (cedar, composite, or PVC), labor costs, and design complexity (railings, stairs, or multi-level layouts).
In this article, we’ll explore everything that affects the cost to replace a deck—including average costs by size and material, additional expenses to plan for, and expert tips on saving money without compromising quality. By the end, you’ll know exactly what to expect (and what to budget for) when planning your 2025 deck replacement project in Washington.
What Drives Deck Replacement Cost?
Several key factors determine how much your deck replacement cost will be in 2025. While the national averages give a helpful range, the actual price for Washington homeowners depends on your deck’s size, material, labor rates, design complexity, and permit requirements.
Size is the biggest cost driver — larger decks naturally need more materials and labor hours. Material choice also plays a major role: pressure-treated lumber is more affordable upfront, while composite and PVC options offer better longevity with minimal upkeep. Labor costs in the Pacific Northwest can vary between $60–$100 per hour depending on experience, certifications, and project scope.
Design and site conditions can further influence your total investment. Features like stairs, built-in seating, or multi-level layouts add to both material and installation time. Sloped yards, tight spaces, or existing structural damage may increase labor hours. Finally, permits and inspections are required in most Washington cities, typically adding $200–$500 depending on deck size and height.
For a deeper look at material comparisons, check out our Best Decking Material Guide or learn how to plan your project in How to Prepare for a Deck Replacement
Deck Replacement Cost by Deck Size
When budgeting for your project, deck size is one of the most reliable indicators of overall cost. In Washington State, most homeowners pay between $30–$60 per square foot installed, depending on materials, design, and labor conditions. Below are the average 2025 deck replacement costs by size:
- 10′ x 10′ (100 sq ft): $3,000–$6,000
- 12′ x 12′ (144 sq ft): $4,300–$8,600
- 14′ x 20′ (280 sq ft): $8,400–$16,800
- 16′ x 20′ (320 sq ft): $9,600–$19,200
These estimates include materials, labor, and permitting for a standard single-level deck installation.
If your design includes multi-level layouts, elevated decks, or built-in features, expect to add roughly 15–30% to your total cost. Elevated decks require additional framing, railing, and foundation support, while custom elements like stairs, lighting, or composite railing systems can further increase the cost to replace a deck.
| Deck Size | Approx. Sq. Ft. | Estimated Cost | Cost per Sq. Ft |
|---|---|---|---|
| 10' x 10' | 100 | $3,000–$6,000 | $30–$60 |
| 12' x 12 | 144 | $4,300–$8,600 | $30–$60 |
| 14' x 20 | 280 | $8,400–$16,800 | $30–$60 |
| 16' x 20' | 320 | $9,600–$19,200 | $30–$60 |
Decking Material Costs and Comparisons
Each decking material comes with its own balance of cost, longevity, and maintenance needs. Whether you want a natural cedar look or a modern composite finish, choosing the right material directly impacts your deck replacement cost and long-term satisfaction.
Cedar Decking
Average Cost: $30–$45 per sq. ft (installed)
Warm, timeless, and naturally rot-resistant, cedar decking remains a Pacific Northwest favorite. Its organic look pairs beautifully with wooded backyards and waterfront homes. However, it requires regular staining or sealing to prevent moisture damage and fading.
Best for: Homeowners who love authentic wood texture and don’t mind maintenance.
Composite Decking
Average Cost: $45–$65 per sq. ft
Composite boards (made from recycled wood fibers and plastics) offer a modern, low-maintenance solution. They resist warping, cracking, and splintering — even after years of rain. With realistic grain textures and fade-resistant colors, composites provide excellent long-term value.
Best for: Busy homeowners seeking a durable, eco-friendly deck with minimal upkeep.
PVC Decking
Average Cost: $55–$70 per sq. ft
PVC decking delivers maximum water resistance, making it ideal for humid or coastal Washington areas. It doesn’t absorb moisture or grow mold, and it stays cooler underfoot on sunny days.
Best for: Wet or shaded backyards prone to mold and algae growth.
Considering sustainable materials for your next project? Explore our post on eco-friendly decking options for the Pacific Northwest to see which materials perform best in our local climate.
TimberTech Decking
Average Cost: $50–$70 per sq. ft
TimberTech’s high-performance composite and PVC lines combine sustainability with style. Known for its scratch-resistant surface and lifetime warranties, TimberTech provides the look of hardwood with zero maintenance.
Best for: Homeowners seeking a designer look with guaranteed longevity.
Aspire Pavers
Average Cost: $60–$75 per sq. ft
Aspire Pavers by Brava offer a unique alternative for ground-level decks, patios, or rooftop spaces. Made from recycled rubber and plastics, they’re lightweight, durable, and stylish. Plus, they help reduce landfill waste — a win for eco-conscious homeowners.
Best for: Modern outdoor spaces or rooftop decks where sustainability meets design.
Compare Cedar vs Composite vs PVC in our Best Decking Material Guide.
| Material | Average Cost per Sq. Ft. | Lifespan | Maintenance Level | Best For |
|---|---|---|---|---|
| Cedar | $30-45$ | 15-20 years | High | Homeowners who prefer a warm natural wood |
| Composite | $45-65$ | 25-30 years | Low | Families wanting long-term durability with low keep |
| PVC | $55-70$ | 30-50 years | Very Low | Wet or shaded backyards in the Pacific Northwest |
| TimberTech | $50-70$ | 30-50 years | Very Low | Premium decks focused on style and performance |
| Aspire Pavers | $60-75$ | 40-50 years | Low | Modern patios, rooftop decks, and sustainable homes |
Average Deck Replacement Cost by Washington City
Below are the estimated 2025 deck replacement cost ranges for key Puget Sound areas, based on local labor rates, permitting requirements, and typical material selections:
| City | Estimated Deck Replacement Cost Range |
|---|---|
| Bellevue, WA | $10,000 – $25,000 |
| Tacoma, WA | $8,000 – $20,000 |
| Puyallup, WA | $7,500 – $18,000 |
| Kirkland, WA | $9,000 – $22,000 |
| Gig Harbor, WA | $8,500 – $19,500 |
| Olympia, WA | $7,000 – $17,000 |
These ranges include materials, labor, and permitting for a standard single-level deck using composite or PVC materials. Elevated or multi-level decks, complex railings, or built-in features will increase costs accordingly.
Deck Contractor Costs in Washington
Working with a licensed and experienced deck replacement contractor is the best way to ensure your project is safe, durable, and built to code. In Washington State, contractors are required to hold valid licensing and insurance—always verify these credentials before beginning your project to avoid costly issues later.
Most professional deck builders in the Puget Sound region charge between $60 and $100 per hour, depending on experience, certifications, and project complexity. While small repairs may take just a few hours, full replacements or multi-level decks can extend over several days. Complex designs, premium materials like TimberTech or Aspire Pavers, and tight site access can all increase labor time and cost.
A qualified contractor will manage every stage of your deck replacement — from the initial site inspection and permit coordination to demolition, framing, installation, and final cleanup. Beyond the build itself, experienced teams also ensure your deck meets all local safety standards and drainage requirements for long-term performance in Washington’s wet climate.
Ready to get started? Partner with a trusted deck replacement contractor
at Orca Roofing & Exteriors to design a deck built for Northwest living — durable, stylish, and built to last.
Additional Costs to Consider
Beyond materials and size, several hidden expenses can influence your deck replacement cost — especially across Washington’s varied terrain and coastal weather conditions. Here are key factors to review before finalizing your budget:
Railing Replacement
Railings are a major contributor to overall pricing and safety. Whether you’re rebuilding an elevated deck or refreshing a ground-level design, expect the following averages per linear foot:
| Deck Railing Material | Average Cost (Per Linear Foot) |
|---|---|
| Wood | $40–$60 |
| Metal | $55–$85 |
| Composite | $80–$165 |
| Glass | $140–$210 |
Choosing the right railing material impacts both safety and long-term maintenance. Composite and metal systems cost more upfront but resist corrosion and moisture better in the Pacific Northwest climate.
Permits and Inspections
Most Washington cities — including Bellevue, Tacoma, and Seattle — require a permit for new decks or replacements that alter height or footprint. Fees typically range from $200 to $600, depending on deck size, elevation, and engineering requirements. Always confirm with your local building department before work begins to avoid costly delays.
Seasonal Pricing and Labor Demand
In the Pacific Northwest, deck builders book out quickly during late spring and summer. Labor rates are often 10–20% higher during these peak months. Planning your replacement during fall or early winter (weather permitting) can help lower costs and secure a faster build schedule.
Demolition and Disposal
Removing an existing deck usually costs $5–$15 per square foot, including demolition and debris removal. If you handle disposal yourself, you can save several hundred dollars — but make sure to follow city guidelines for wood waste or treated lumber disposal.
Site Conditions and Access
Sloped yards, limited truck access, or tight spaces can increase labor time and cost. On steep or waterfront properties common in Gig Harbor and Kirkland, additional framing, grading, or erosion control may be needed to stabilize the new structure safely.
Prep Work and Surface Treatments
Projects involving resurfacing, restaining, or sealing add extra steps — and costs. Professional deck staining or sealing runs between $550 and $1,250, depending on deck size and finish type. These treatments protect against moss and moisture damage — crucial for decks in Washington’s rainy climate.
Design Customizations
Upgrades like built-in seating, planters, lighting, or pergolas enhance function but increase material and labor costs. Custom features typically add 15–30% to your total deck replacement price. While optional, these upgrades often deliver strong ROI through comfort and curb appeal.
Site Evaluation Fees
Some contractors charge a small evaluation or design consultation fee, especially for large or complex projects. These fees are often waived or credited once you sign a contract, but always ask during the initial quote.
Insurance and Protection
Standard homeowner’s insurance usually doesn’t cover wear, rot, or aging materials. Consider extended workmanship or manufacturer warranties — especially for composite and PVC decks — to safeguard your investment over time.
For a complete cost breakdown and design ideas, explore our How to Prepare for a Deck Replacement guide.
How to Reduce Your Deck Replacement Cost
You don’t always need to spend top dollar to get a long-lasting, beautiful deck. With a few smart choices and some hands-on work, you can significantly lower your overall project cost without sacrificing quality. Here are practical ways to save money on your next deck replacement in Washington:
- Buy your own materials. Ask your contractor for a full materials list and source the decking boards, fasteners, or rail components yourself from local suppliers. Many lumberyards and home centers offer seasonal discounts on bulk purchases.
- Tackle small prep tasks. If you’re comfortable with tools, you can handle minor jobs like cleaning, sealing, or removing old boards before the build begins. This reduces labor hours and keeps the project on schedule.
- Hire the right level of help. For small fixes or partial resurfacing, a licensed handyperson may be more affordable than a full decking crew. Save the pros for structural work, framing, and code-required tasks.
- Handle cleanup and disposal. Removing and hauling away debris yourself can save several hundred dollars, especially if your city offers free or low-cost bulk pickup.
- Maintain regularly. Once your new deck is installed, clean and reseal it every two to three years (or as recommended for your material). Proper maintenance extends the lifespan of your deck and prevents costly future repairs.
By planning strategically and taking on manageable tasks, homeowners can keep deck replacement costs reasonable while still ensuring a safe, durable structure built for Washington’s wet climate.
Permits, Tools & Timeline — What to Expect in Washington State
Before starting your deck replacement, it’s important to understand the regional requirements and typical timeline. In Washington and across the Pacific Northwest, weather, slope, and local code standards all play a role in how your project unfolds.
Permits & Inspections
Most cities and counties in the PNW require a building permit for deck replacement, especially if the structure is elevated or attached to your home. Permit fees generally range from $200 to $500, depending on your location and project size. Expect at least one or two inspections — typically after framing and before final approval — to ensure the deck meets local safety and structural standards.
Timeline
A typical deck replacement takes one to two weeks, depending on design complexity and weather conditions.
- Demolition & Prep: 1–2 days
- Framing: 2–4 days
- Decking & Rail Installation: 2–4 days
- Final Inspection & Clean-up: 1 day
Projects with custom railings, lighting, or multi-level layouts may take longer, particularly during the rainy season.
Tools & Professional Standards
Professional deck builders in Washington follow strict construction codes to ensure safety and longevity. This includes:
- Hidden fastener systems for a clean finish
- Stainless steel or coated hardware for corrosion resistance
- Proper footing depth and drainage suited for PNW soil conditions
- Flashing and ledger installation to code, preventing moisture intrusion and rot
Using the right materials and installation methods ensures your deck remains stable, safe, and low-maintenance for years to come.
Repair vs Replacement — How to Decide
If your deck is showing signs of wear, deciding between deck repair or full replacement comes down to its age, structure, and overall condition. Making the right call can save you thousands — and ensure your outdoor space stays safe and beautiful for years.
When to Repair Your Deck:
Sometimes, a simple repair is all that’s needed. You can likely stick with repairs if:
- The frame is still structurally sound and free of major rot.
- Damage is limited to one area, such as loose boards or a single railing section.
- Your deck is under 15 years old and made from durable materials like composite or PVC.
In these cases, resurfacing, replacing damaged boards, or tightening fasteners can restore your deck’s look and function without a full rebuild.
When to Replace Your Deck:
A full replacement may be necessary when the structure has aged beyond repair. Consider replacing if:
- The frame shows signs of rot, sagging, or pest damage.
- There are multiple failures in boards, rails, or stairs.
- Your deck is 20+ years old or built with pressure-treated lumber that’s deteriorating.
- You’re planning a layout upgrade or material switch, such as upgrading from wood to low-maintenance composite, PVC, TimberTech, or Aspire Pavers.
In these cases, starting fresh ensures safety, compliance with modern codes, and improved long-term value.
| When to Repair Your Deck | When to Replace Your Deck |
|---|---|
| Minor surface wear like small cracks, scratches, or discoloration | Widespread structural damage such as sagging beams or rotted joists |
| Frame remains solid with no signs of rot or pest infestation | Frame is compromised by moisture, rot, or termite damage |
| Only a few boards or railings are loose, warped, or broken | Multiple sections (boards, rails, stairs) are deteriorating or unsafe |
| Deck is under 15 years old and built with long-lasting materials like composite or PVC | Deck is 20+ years old or made from pressure-treated wood that’s breaking down |
| You want to refresh your deck’s look with cleaning, sealing, or resurfacing | You’re planning to upgrade materials or redesign your layout for better functionality |
| Cost of repair is low compared to a full rebuild | Repair costs are frequent or close to the price of a new deck |
Washington / Puget Sound Pricing Notes
Deck replacement costs in the Puget Sound region can vary slightly from national averages due to our unique Pacific Northwest climate and terrain. Here are a few regional factors that directly impact pricing and performance:
- Rain & Moss Climates Favor Composite and PVC: Because of Washington’s year-round moisture, composite, PVC, and TimberTech materials offer the best long-term value. While cedar and wood decks may look great initially, they require frequent sealing and can rot or grow moss over time—raising lifetime costs.
- Disposal & Access Challenges: Many local homes sit on tight or sloped lots, which can make demolition and disposal more complex. Limited access for hauling equipment or materials often increases labor time and overall project costs.
- Moisture Management Is Non-Negotiable: Proper ventilation, flashing, and spacing are essential for deck longevity in the PNW. Skipping these steps leads to trapped moisture and premature rot—even on high-end materials. Working with a contractor familiar with local building codes and best practices ensures your investment lasts.
Credentials, Warranties & Why Contractor Choice Changes Cost
Choosing the right deck contractor in Washington isn’t just about price—it’s about protection, performance, and peace of mind.
Licensing, Bonding & Insurance
Always confirm that your contractor is licensed, bonded, and insured in Washington State. This ensures your project complies with safety regulations and protects you from liability if an accident or damage occurs.
Manufacturer Certifications Matter
Certified installers—such as TimberTech or Brava-certified contractors—receive factory training on product-specific installation techniques. This certification often unlocks extended manufacturer warranties and guarantees that your deck performs as intended for decades.
Workmanship Warranty Standards
A reputable builder should back their craftsmanship with a minimum one-year warranty, while premium contractors like Orca Roofing & Exteriors go further, offering multi-year workmanship guarantees for added confidence.
By choosing a qualified, certified team, you’re not just paying for materials—you’re investing in lasting value, fewer repairs, and better protection against Washington’s tough weather.
Ready to get started? Schedule a free estimate with our licensed and certified team today.
Final Thoughts — Investing Wisely in Your Deck Replacement
Replacing your deck is more than just an aesthetic upgrade — it’s an investment in your home’s comfort, safety, and long-term value. While the deck replacement cost in Washington can range widely depending on size, material, and design, choosing the right materials and contractor will determine how well your deck stands up to the Pacific Northwest’s wet, moss-prone climate.
Whether you’re upgrading from cedar to composite, switching to PVC or TimberTech for low-maintenance living, or exploring modern alternatives like Aspire Pavers, the key is balancing upfront cost with lifetime performance. A professionally built deck not only enhances curb appeal but can also deliver one of the highest returns on investment of any home improvement project.
At the end of the day, the best deck is one that fits your home, your lifestyle, and your budget — built to handle Washington’s weather for decades to come.
Ready to get started? Contact Orca Roofing & Exteriors today for a personalized quote and expert guidance on your next deck replacement.
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Cost to Replace a Deck FAQs
What’s the average cost to replace a deck?
In Washington, most homeowners spend between $7,000 and $30,000 for a full deck replacement. Smaller projects start around $3,000, while large custom builds with premium materials can exceed $40,000.
How much is deck replacement per square foot in Washington?
Expect to pay $30–$60 per square foot installed, depending on materials, framing, and design complexity. Labor costs are generally higher in the Puget Sound area due to local permitting and terrain challenges.
Is composite or PVC cheaper long term?
Yes — while composite and PVC decks cost more upfront than wood, they require little to no maintenance and can last 30–50 years. That means fewer repairs, no staining or sealing, and better overall ROI.
Can I reuse my existing frame? How do I know if it’s safe?
You can reuse your frame if it’s structurally sound, free of rot, and meets current building codes. A licensed deck contractor will inspect joists, beams, and posts before confirming whether the frame can safely support new boards.
Do I need a permit to replace my deck?
In most Washington cities, yes. Any structural work, framing changes, or deck expansions typically require a building permit and inspection. Your contractor should handle this process and include fees in your estimate.
How long does a deck replacement take?
A standard deck replacement takes one to two weeks, depending on size and weather. Demolition and framing usually take 3–4 days, with decking, railing, and finishing work taking another 4–7 days.
What adds the most cost — railing, stairs, or lighting?
All three can increase project costs, but custom railings and multi-level stairs typically have the biggest impact. Integrated lighting, pergolas, and seating upgrades also raise labor time and complexity.
