How to Write a Quote for a Plumbing Job

Plumbing quotes are often rushed because the client wants the problem fixed fast. Slowing down for two minutes to send a proper quote pays off every time.

When a tap is leaking or a geyser has burst, clients want help immediately. The temptation is to quote on the spot verbally and get to work. The problem is that verbal quotes are where disputes start. A short, clear written quote takes two minutes and protects everyone.

Even in an emergency, taking 60 seconds to send a written quote via WhatsApp before starting work is worth it. The client gets clarity, you get protection, and the job starts on the right foot.

Diagnose before you quote

A leak that looks simple from above might be a much bigger job once you open the wall. Where possible, do a brief diagnosis first and quote based on what you've actually seen. If you can't, quote a fixed amount for the diagnosis and a separate quote for the work.

Splitting diagnosis from repair is one of the most powerful protections in plumbing. The client pays for your time to investigate, you give them an honest assessment, and then you quote the actual work based on what you found. Nobody is surprised when the bill arrives.

Itemise the materials

Plumbing materials add up fast. Quote each fitting, valve, pipe length, and fixture as a separate line item, totalled in a free quote calculator. The client can see what they're paying for and you have a clear record of what was supplied.

If you're using premium parts, mention it. 'Brass fittings (10-year warranty)' is more compelling than just 'fittings'. Clients who can see why the materials cost what they do don't push back on price.

Charge for the call-out

Plumbing call-outs almost always justify a separate fee, especially if it's an emergency. List it on the quote as its own line so there's no ambiguity. After-hours and weekend call-outs should be at a premium rate, and the client should know that before you arrive.

Include a warranty statement

Plumbing work that fails can cause expensive damage. A short warranty note like '12 months on all workmanship' gives the client peace of mind and signals confidence in your work.

If you offer a longer warranty on certain types of work (like a pipe replacement or a hot water installation), say so. Warranty is often the deciding factor between you and a cheaper competitor.

Cover what could go wrong

If you suspect there might be hidden issues (corroded pipes, old fittings), add a note: 'This quote covers the visible repair. Any additional issues found during the work will be quoted separately before continuing.' This prevents nasty surprises later.

This single line is worth its weight in gold. It prevents the conversation where you've torn out a wall, found a much bigger problem, and have to choose between absorbing the cost or having an awkward conversation with an angry client.

Note water shut-off requirements

Some jobs require turning off the water main. Mention it in the quote. 'Water will need to be off for approximately 1 hour during the work.' This lets the client prepare, fill the kettle, and avoid the surprise of suddenly having no water.

Reference insurance for major work

For larger jobs (geyser replacement, pipe re-routing, full bathroom plumbing), reference your public liability insurance. Plumbing failures can cause significant water damage. Clients on bigger jobs find it reassuring to know you're properly insured.

Be realistic about timing

If the job will take a day, say so. If it might involve waiting for parts, say so. Clients accept honest estimates much better than surprises. 'Job duration: half a day, subject to no hidden issues' is much better than no estimate at all.

Make it easy to accept on the spot

Most plumbing jobs need to start quickly. The client wants the problem fixed today, not next week. A digital quote that can be accepted on a phone in seconds is perfect for plumbing because it removes any delay between agreeing the price and starting the work.

If this is your day-to-day, QuoteGenio handles quotes and invoices for plumbers and the wider plumbing and water trades. Branded PDFs, WhatsApp send, deposits, and online acceptance are built in.