Do You Need a Certificate for Plumbing Work? (2025 Guide)

Thinking about fixing a leaky faucet or tackling a bigger plumbing project? You’re not alone—but before you grab your wrench, you might be wondering: do you need a certificate for plumbing work? The answer isn’t always simple. While simple DIY fixes at home are usually fine, professional plumbing—especially for pay or in commercial settings—often requires…