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Decking & outdoor timber work in Cardiff

We design and build decking and outdoor timber structures that turn gardens into usable, enjoyable spaces. From small decks to complete outdoor areas, we work across Cardiff and surrounding areas.

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  • "Prompt and reliable - less than a week from first contact to job completed."

Newly installed gray composite decking on a backyard patio with a wooden privacy fence on one side and a brick house with large glass doors on the other.

What We Offer

  • Custom timber or composite decking tailored to your space, budget and lifestyle.

    At Fortress Group Cardiff we design and install durable, attractive decking—timber for a natural look or low‑maintenance composite. We’ll advise on materials, layouts and finishes to suit your garden.

  • Strong frames are vital for lasting decking. Fortress Group Cardiff repairs decks to restore strength and extend life.

Thinking about a new deck?

Get in touch for friendly advice and a free quote.

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Construction of a new wooden deck in the backyard of a brick house, with stacked lumber, tools, and materials nearby.

Our Other Services

A shield-shaped logo with a black background and an orange outline. Inside the shield, there is an orange castle tower with three battlements.

Fencing

High-quality fencing installations, repairs and replacements.

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Gardening

Grass cutting, hedge trimming, tidy-ups and ongoing care.

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Patios

Patio laying, repair and sealing.
Jet washing to remove moss, weeds and debris.

LET'S LAY SOME STONE