Timber & Composite Decking Across Perth’s Northern Suburbs

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Deck Builders Servicing Perth’s Northern Corridor

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Northern Decking Co specialises in high-quality timber and composite decking designed for durability, structural integrity and long-term performance. We don’t just install boards — we construct complete decking systems built to handle Western Australia’s heat, coastal exposure and heavy seasonal weather.

Northern Decking Co proudly servicing Perth’s northern corridor with decking including Joondalup, Wanneroo, Alkimos, Butler, Ellenbrook and Yanchep. We also service surrounding suburbs such as Mullaloo, Aveley, Ocean Reef, Hillarys, Carramar and Banksia Grove.

Don't see your suburb? Don't stress, submit and enquiry and we will let you know if we can assist.

Custom Decking Designed for Strength & Longevity

Our Services

A deck is only as strong as the structure beneath it. That’s why we prioritise proper subframe construction, correct joist spacing and secure footing systems on every project. Structural integrity is never an afterthought — it’s the foundation of everything we build.



We ensure adequate ventilation and drainage to prevent moisture build-up, allow for natural material movement and extend the life of the deck. For composite installations, we incorporate appropriate expansion allowances to accommodate thermal movement, while all fixings are selected to suit coastal conditions and resist corrosion over time.


Whether it’s a ground-level alfresco deck or a raised structure on a sloping block, we construct decking systems that are safe, stable and engineered for long-term performance.

Timber Decking

Timber decking offers a natural, warm finish that suits both modern and traditional homes. We work with treated pine and hardwood options selected for durability in WA’s climate, ensuring your deck not only looks good but performs long term.

Each timber deck we build is structurally framed for stability, installed with appropriate spacing to allow airflow, and finished in a way that reduces movement and wear over time. By focusing on correct installation methods and long-term maintainability, we create timber decks that remain strong, reliable and visually appealing for years to come.

With proper construction and ongoing care, timber decking continues to be a proven and dependable choice for outdoor living areas.

A side-by-side comparison of light, natural wood decking planks and dark, stained wood planks.

Composite Decking

Composite decking provides a low-maintenance solution ideal for busy households and coastal properties. Modern composite boards are UV-resistant, moisture-resistant and engineered to retain their colour even under harsh sun exposure.

When installing composite decking, we account for thermal movement, use hidden fixing systems where appropriate, and ensure clean, precise finishes throughout. This approach allows the deck to expand and contract naturally while maintaining a modern, streamlined appearance.

For homeowners seeking reduced upkeep without sacrificing durability or aesthetics, composite decking is often the preferred long-term solution.

An angled, close-up perspective of parallel light brown composite decking planks with a textured wood grain pattern.

Outdoor Living & Pool Decking

We design and construct decking solutions tailored to a range of outdoor applications, including alfresco areas, pool surrounds, elevated entertaining spaces, deck extensions and properties built on sloping blocks. Every project is designed to suit the layout of your home while enhancing both functionality and visual appeal.

When building decks around pools and outdoor entertaining zones, we carefully consider slip resistance, heat exposure and effective drainage. Proper spacing, material selection and structural planning ensure the finished deck performs safely and comfortably in high-use areas throughout the year.

Whether you’re creating a new entertaining space or upgrading an existing outdoor area, our focus remains on durability, structural integrity and long-term performance.

Wooden decking boards running diagonally beside a bright blue swimming pool, with leaf shadows cast on the wood.

Built for Living.

Built to Last.


A professionally built deck does more than improve appearance — it adds practical value and usable living space to your home. In Perth’s northern suburbs, where outdoor entertaining is a big part of lifestyle, decking creates a seamless transition between indoor and outdoor areas.


One of the biggest advantages of decking is the ability to expand your entertaining space without the cost of a full extension. A well-designed deck can transform an unused backyard into a functional alfresco area, ideal for hosting family gatherings, barbecues or relaxing outdoors.



Decking also increases property appeal. Modern timber and composite decks enhance street presence and backyard presentation, which can positively influence resale value.


For homes on sloping blocks, decking provides a practical solution that avoids extensive excavation or retaining walls. Elevated deck systems can create level, usable spaces where traditional paving may not be suitable.


Low-maintenance composite decking options further reduce upkeep requirements, while properly installed timber decking can be maintained and refreshed over time to retain its appearance.


When built correctly with durable materials and sound structural framing, a deck becomes a long-term investment that enhances both lifestyle and property value.

The Benefits of Installing a Quality Deck

A person kneeling on a wooden deck uses a cordless drill to fasten a plank to the joists, surrounded by construction tools.

Timber vs Composite – What’s Right for You?

Choosing between timber and composite depends on:

  • Maintenance expectations
  • Budget
  • Property style
  • Exposure to weather
  • Long-term plans


Timber offers natural warmth and can be re-oiled over time. Composite offers lower maintenance and strong colour retention.



We provide honest advice based on your property and goals — not upselling unnecessary materials.

Built for WA Conditions

Perth’s northern suburbs are exposed to intense UV radiation, coastal wind and salt air, heavy seasonal rainfall and, in some estates, expansive clay soils that can shift over time. These environmental factors place real stress on outdoor structures, particularly decking systems that are constantly exposed to the elements.


Northern Decking Co builds decks specifically engineered for these conditions. We use proper structural framing methods, corrosion-resistant fixings and carefully selected materials designed for long-term durability in WA’s climate.

We don’t cut corners.


A deck should look good — but more importantly, it should be built properly from the ground up to perform for years to come.

Why Choose Northern Decking Co?

  • Specialist timber & composite installers
  • Focused exclusively on Perth’s northern suburbs
  • Structurally sound framing and construction
  • Clean, professional finishes
  • Clear and transparent quoting
  • Fast response times


Our goal is simple: build outdoor spaces that add value to your home and stand the test of time.

Frequently asked questions

  • How much does decking cost in Joondalup?

    Decking costs vary depending on size, material selection and structural requirements. Composite decking is generally more expensive upfront but requires less maintenance over time.


    We provide detailed, obligation-free quotes based on your property.

  • Is composite decking suitable for coastal homes?

    Yes. Composite decking performs well in coastal areas like Alkimos and Mullaloo because it resists moisture, fading and insect damage.

  • Do I need council approval for a deck?

    In some cases, yes — particularly for elevated or large decks. We can advise you on local requirements in Joondalup and Wanneroo council areas.

  • How long does timber decking last?

    With proper maintenance and correct installation, timber decking can last many years. Regular oiling and inspections extend its lifespan significantly.