The Master Plumbers Association (MPA) of NSW has warned that tradies and small construction businesses are being left exposed as global supply disruptions drive massive price increases in critical building materials, threatening new home construction across the country.

MPA NSW chief executive Nathaniel Smith says that the latest surge in PVC and plastics pricing is another blow to an industry already under pressure, and governments cannot afford to sit on their hands.

“Let’s call this for what it is, another cost hit that will land squarely on the shoulders of tradies and small businesses,” he says.

“PVC pipe is not optional. It’s essential for every home build. When prices jump by 25 to 35% overnight, and supply becomes uncertain, the entire construction sector feels it immediately.”

Major suppliers have flagged sharp increases from mid-April, alongside warnings of limited availability, shorter quote windows and supply constraints driven by global instability.

“When plumbers can’t get materials, builders can’t build. When builders stop, every trade on that site stops. This doesn’t just slow the market, it chokes it,” Nathaniel explains.

“You cannot talk about building more homes while ignoring the reality on the ground. Costs are rising, supply is tightening and tradies are being squeezed from every angle.”

The biggest concern is small operators locked into fixed-price contracts who now face absorbing massive cost increases without the ability to pass them on.

“These are hardworking small business operators who signed contracts in good faith months ago. Now they’re being hit with price hikes they can’t recover,” Nathaniel says.

“And where is the support? Nowhere to be seen.”

Nathaniel calls on both the Federal and State Governments to urgently step in with targeted hardship support for tradies and construction businesses: “This is exactly the type of shock where governments should be stepping up, not stepping back.”

“We need immediate, practical support for tradies on fixed contracts who are being crushed by these increases. Without it, we risk seeing businesses go under and projects collapse.”

He also warns that ongoing supply disruptions will continue to erode productivity and confidence across the sector: “This is becoming a pattern, shortages, price spikes, delays, and it’s tradies who are expected to bear the cost every time.”

“If governments are serious about housing, they need to start backing the people who actually build the homes.”

MPA NSW will continue to push for urgent action and support measures as the situation unfolds.