Plumbing is one of the more straightforward trades to go solo in — demand is fairly constant year-round — but a few things matter early on that do not apply to every trade.
Get your certifications sorted before you take your first job
Plumbing carries more regulatory requirements than many trades — depending on where you work, this can include water regulations, gas safety registration if you do gas work, or other local licensing. Confirm exactly what is required in your area before advertising, not after a customer asks.
Decide how you'll price call-outs
Unlike many trades, plumbers get a steady stream of urgent and emergency work. Decide your call-out fee and any out-of-hours premium in advance, rather than making it up on the phone under pressure — a clear standard rate stops you either underselling stressful work or looking like you are improvising.
Stock your van deliberately, not gradually
A plumber without the right fitting on the van turns a 30-minute job into a second visit. Build a core stock list before your first week of jobs rather than discovering gaps case by case.
Keep a simple running list of "parts I didn't have" after each job for the first month. It becomes your actual restocking list — more accurate than guessing in advance.
Insurance matters more here than in many trades
Water damage claims can be expensive, and plumbing work often happens inside occupied homes. Public liability cover is close to essential for this trade specifically, not just a nice-to-have.
Look professional before your first job, not after a few
A clean quote with parts and labour itemised separately builds trust fast, especially for bigger jobs like bathroom refits where customers are comparing several quotes side by side.
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