Plumber Day Rate UK 2026: How Much Should Plumbers Charge Per Day?

What Is a Plumber's Day Rate?

A day rate is a fixed charge for a full day's work, typically eight hours on site. Most self-employed plumbers in the UK price their work this way rather than quoting hourly, because it's simpler, harder for customers to dispute, and gives you certainty about what you'll earn before you load the van.

Day rates vary significantly depending on where you work, what kind of jobs you take on, and how long you've been trading. A first-year sole trader in the North East will charge very differently to an experienced Gas Safe engineer in London — and both can be right.

Plumber Day Rates in the UK — 2026

Here's a realistic breakdown of what plumbers are charging across the UK in 2026, based on market data and trade forum discussions:

London and South East

Standard plumbing work: £350 – £500 per day
Gas work (boiler installs, servicing): £400 – £600 per day
Emergency callouts: £100 – £200 per hour (billed separately)

Midlands and North West

Standard plumbing: £250 – £380 per day
Gas work: £300 – £450 per day

North East, Scotland and Wales

Standard plumbing: £200 – £320 per day
Gas work: £260 – £400 per day

These figures are for the plumber's labour only. Materials are almost always charged on top — either at cost, cost plus a margin, or as a separate line on the invoice.

How to Work Out Your Own Day Rate

The most reliable way to set your day rate is to work backwards from what you need to earn, not forwards from what you think the market expects.

Start with your target annual income — let's say £45,000 take-home. Add up your annual business costs: van, fuel, insurance, tools, Gas Safe registration, marketing. That might total £15,000. So you need to generate roughly £60,000 in revenue per year.

Now work out how many billable days you actually have. There are roughly 260 working days in a year. Subtract holidays (say 20 days), sick days, days spent quoting and admin, and days where you simply can't get work. A realistic figure for most sole trader plumbers is 180–200 billable days per year.

Divide £60,000 by 180 and you get £333 per day. That's your floor — the minimum you need to charge to hit your income target. Most plumbers then add a buffer of 10–20% on top to account for bad debt, slow months and rising costs.

Should You Charge a Half Day Rate?

Most plumbers do. If a job only takes three or four hours, charging a full day rate can feel difficult to justify to the customer — and it can lose you work if they feel hard done by.

A common approach is to charge 60–65% of your day rate for a half day. So if your day rate is £300, a half day might be £180–£200. Some plumbers set a minimum call-out charge instead, typically £80–£120, which covers travel and the first hour of work regardless of how small the job is.

Materials — Charge Them or Supply Them?

There's no right answer, but most experienced plumbers recommend supplying materials yourself rather than letting the customer buy them. When a customer sources their own parts, you have no control over quality, no supplier relationship to lean on if something fails, and no margin on the materials.

A typical approach is to charge materials at cost plus 15–25%. This covers your time sourcing, collecting and returning parts, and gives you a modest margin on top of your labour. Always list materials as a separate line on your invoice so the customer can see exactly what they're paying for.

When to Raise Your Day Rate

Most plumbers are chronically underpriced. If you're never losing jobs on price, you're almost certainly too cheap. A healthy win rate is roughly 60–70% of quotes — meaning you're competitive but not the cheapest option in every situation.

Signs you should raise your rate:

You're fully booked more than three weeks out
Customers rarely question your price
You haven't raised your rate in over 12 months
Your costs have gone up but your day rate hasn't

Raising your rate by 10% won't lose you most customers. The ones it does lose are usually the ones who were going to be difficult anyway.

Keeping Track of What You Earn

Whether you charge a day rate, a fixed price or a combination of both, getting the paperwork right matters. Every job should have a written quote or estimate before work starts, and a proper invoice once it's done.

Dayrates is built specifically for UK plumbers and tradespeople. You can create and send invoices from your phone in minutes, track what's been paid and what's outstanding, and manage CIS deductions automatically if you work under the Construction Industry Scheme. There's a 14-day free trial — no card required.