How to Quote a Plumbing Job in the UK (2026 Guide)
Getting your plumbing quotes right is the difference between a profitable business and one that's always chasing its tail. Quote too high and you lose the job. Too low and you're working for nothing.
Here's how to build accurate plumbing quotes that win work and actually make you money.
1. Calculate Your Hourly Rate
Before you quote anything, you need to know your hourly rate. In 2026, the average UK plumber charges between £40–£60 per hour, depending on location and experience. London and the South East sit at the higher end. For a full breakdown of what tradespeople are charging across all trades, see our guide to tradesman day rates in the UK for 2026.
To work out yours:
- What do you want to earn per year? (e.g. £45,000)
- Divide by working weeks (say 46, after holidays)
- Divide by hours per week (say 40)
- That's roughly £24/hr take-home - but you need to add overheads
2. Add Your Overheads
Most plumbers forget to factor in the real cost of running their business:
- Van costs (fuel, insurance, maintenance)
- Tools and equipment
- Insurance (public liability, professional indemnity)
- Gas Safe registration
- Accounting and software
- Marketing
A good rule of thumb: your charge-out rate should be roughly 2x your desired take-home rate to cover overheads and profit margin.
3. Estimate the Job Duration
Be realistic about how long a job takes. Common plumbing jobs:
- Fix a dripping tap: 30 mins–1 hour
- Replace a radiator: 1–2 hours
- Install a bathroom suite: 1–2 days
- Full central heating install: 3–5 days
- Boiler replacement: 1–2 days
Always add a buffer - 10–15% extra time for unexpected issues. Every plumber knows that "quick job" that turned into a full day.
4. Price Your Materials
Get accurate material costs from your suppliers before quoting. Don't guess.
- Use your trade account prices, not retail
- Add 10–20% markup on materials (this is standard practice)
- Account for waste - buy slightly more than you need
- If material prices are volatile, add a note that the quote is valid for 30 days
5. Factor in Travel
If the job is more than 15–20 minutes from your base, charge for travel. Options:
- Flat call-out fee (e.g. £30–£50)
- Per-mile charge (e.g. 45p/mile)
- Include it in your hourly rate for local work
6. Put It All Together
Your quote formula:
Quote = (Hourly Rate × Estimated Hours) + Materials + Travel + Contingency
Example: Bathroom radiator replacement
- Labour: £50/hr × 1.5 hours = £75
- Materials: radiator £80 + fittings £15 = £95 (+ 15% markup = £109)
- Travel: £30 call-out
- Total: £214
7. Present It Professionally
A scribbled number on the back of a receipt doesn't inspire confidence. Use proper quoting software to send professional, branded quotes that your customers can accept with a tap.
With Jobnix, you can build and send quotes from your phone in under 2 minutes. Your customer gets a clean, professional PDF with your branding, a clear breakdown, and the option to accept instantly.
Common Quoting Mistakes
- Not visiting the site first: Always look at the job before quoting if it's anything beyond a simple fix
- Forgetting VAT: If you're VAT registered, make sure your quote states whether prices include or exclude VAT
- No expiry date: Material prices change - put a 30-day validity on your quotes
- Being too vague: Break down labour, materials, and any extras. Customers trust detailed quotes
Bottom Line
Good quoting isn't just about getting the number right - it's about presenting yourself as a professional who knows their worth. Accurate, well-presented quotes win more work and lead to fewer disputes.