Composite Decking in Belfast

2 listed firms covering Belfast name composite boards on their own sites. Fitted, composite runs £100 to £220 per m² on published UK price lists; Belfast sits inside that band.

Composite Decking NI

Based in Belfast

No prices published

Fits: Composite

Website live, checked in the last fortnight
Decking service on its own website
No scheme or membership stated

Unclaimed listing

Full listing Firm's website

Decking NI

Based in Belfast · also Lisburn, Newry

No prices published

Fits: Composite

Website live, checked in the last fortnight
Decking service on its own website
No scheme or membership stated

Unclaimed listing

Full listing Firm's website

Every decking firm in Belfast, timber included: Decking installers in Belfast.

Composite in Belfast

Belfast's gardens in the Malone, Stranmillis and Castlereagh suburbs slope towards the Lagan, while the terraces off the Falls and Shankill are tight. Northern Ireland has its own permitted development order; planning is handled by the council.

Fitted prices

Composite, per m²: £100 to £220
15 m² composite deck: £1,500 to £3,300
20 m² raised composite: £3,500 to £7,500
Balustrade, per m: £90 to £200

UK ranges from published price guides, October 2026. A guide, not a quote. The cost guide.

Ask the fitter

Which board and range, and is it capped?
Timber, aluminium or steel subframe?
Joist centres and expansion gaps to the maker's guide?
Who registers the warranty?

Composite or timber: which should you buy?

Composite installers nearby

Lisburn · Newry · Paisley · East Kilbride · Glasgow

All of Northern Ireland · Every composite town