BBC News
By Clodagh Rice
Published
image captionBuilders say the demand for work is "phenomenal"
A global supply shortage has driven up supply costs and caused delays for Northern Ireland's construction sector.
Builders have seen a rise in demand as the pandemic spurs people to spend money on their homes they would normally spend on holidays.
But timber, steel and plastic have become much harder to get, and have risen in price considerably.
An industry body said uncertainty about rising supply prices made it difficult for builders to cost projects.
image captionGavin McGuire says prices rises have been across the board