
Composite decking installation in the Isle of Man
Concept D designs and installs premium decking across the Isle of Man (IOM), combining carefully selected boards with engineered substructures and considered detailing. From a new garden terrace to replacing a worn timber deck, we manage the project from survey to handover.
A complete decking installation service
We assess the site, levels, access, existing structure and drainage before agreeing the scope. Our work brings together specification, procurement, subframe installation, decking boards and finishing details. Steps, balustrades and screening can be considered as part of the wider project.
Deck replacement and renewal
A new surface needs a sound structure beneath it. We inspect the existing deck and supports, identify drainage or deterioration issues, and plan the replacement around the site rather than covering over the problem.


Designed for Isle of Man conditions
Coastal exposure, moisture, drainage and access all influence how an outdoor space should be built. We consider the complete assembly, including ventilation, fixings and support, when specifying the system.
Phase 01
Site survey
Detailed review of elevation, access points, and specific architectural needs.
Phase 02
Design and scope
Defining the engineering strategy and selecting specific decking profiles.
Phase 03
Procurement
Managing the shipping and handling of specialist systems to the Island.
Phase 04
Installation
Expert building with a focus on sub-frames, water runoff, and trim work.
Phase 05
Inspection and handover
Decking questions
How much does decking installation cost?
The price depends on the deck size, access, ground conditions, subframe, board choice and details such as steps and balustrades. Send us photographs, approximate dimensions and your location so we can discuss the scope and arrange the next step.
Can you replace an existing timber deck?
Yes. We assess the existing deck and its supports before recommending what can be retained and what should be replaced.
Is composite decking maintenance-free?
No. It still needs cleaning and care in line with the chosen manufacturer guidance. We can discuss the maintenance needs of the options being considered.
Do you work across the Isle of Man?
Concept D is based in Douglas and undertakes outdoor construction projects across the Isle of Man. Contact us with your location and project details.
