How to find a reliable plumber
Short answerTo find a reliable plumber, start with a personal recommendation or the WaterSafe register of approved plumbers, check Gas Safe registration on the official register for any gas or boiler work, and get a written, itemised quote before work starts. Ask about insurance, guarantees and who will actually do the job; Checkatrade's 2026 average plumber rate is around £50 an hour.
Most of us only go looking for a plumber when something's already leaking, which is the worst time to choose. This guide sets out how to find a reliable plumber calmly: where to look, what to check, the questions to ask a plumber before you agree anything, and the warning signs to walk away from. It works whether you're in Market Harborough or anywhere else in the UK.
Step 1: Know what kind of plumber you need
Plumbers cover a wide range. Before you start, be clear whether your job involves:
- Water only: leaks, taps, toilets, radiators, bathrooms, outside taps
- Gas: boilers, gas hobs, gas fires. This must be done by a Gas Safe registered engineer.
- Unvented hot water cylinders: need an installer with an unvented hot water qualification, and the job is notifiable to building control
- Drainage: blocked drains and sewers are often a specialist drainage company's job
Our guide plumber or gas engineer: which do I need goes through this in detail.
Step 2: Where to look
Personal recommendations
A neighbour, friend or family member who has used someone recently and would use them again is still the best starting point. Ask what the job was, whether it came in on price, and how they dealt with any problems. A recommendation for a boiler engineer doesn't automatically mean they're the right person for a bathroom refit.
The WaterSafe register
WaterSafe is the national register of approved plumbers, backed by the UK water industry and recommended by the Drinking Water Inspectorate. Businesses on it belong to approved contractors' schemes such as APHC and CIPHE. Approved plumbers carry a WaterSafe ID badge, and can issue a certificate showing work meets the Water Fittings Regulations, which can protect you if a water company later questions an installation. You can search by postcode.
The Gas Safe Register
For gas work, search the official Gas Safe Register, or call 0800 408 5500. Every registered engineer has an ID card showing the categories of gas work they're qualified for.
Online directories
Directories and review sites are useful for spotting patterns in reviews and checking someone exists. They work differently from a personal recommendation: you're seeing many businesses, rated by people you don't know. Our guide to directory vs personal recommendation explains the trade-offs.
Step 3: The checks that matter
- Registration: Gas Safe for any gas work (check the card and the register), WaterSafe or a scheme membership for water work.
- Insurance: ask whether they have public liability insurance. A reliable plumber will tell you without hesitation.
- A real address and landline or business details, not just a mobile number.
- Recent, specific references: ideally a similar job, nearby, in the last year.
- A written quote: itemised, with what's included and excluded.
- Guarantee: how long their workmanship is guaranteed for, and what manufacturer warranties come with any parts or boiler.
Questions to ask a plumber
Before you agree anything, ask:
- Have you done this exact job before? How often?
- Are you Gas Safe registered, and for which categories? (if any gas is involved)
- Are you a member of WaterSafe or an approved contractors' scheme?
- Do you have public liability insurance?
- Is this a fixed quote or an estimate? What could change it?
- Is VAT included?
- Do you charge a call-out fee, and is it deducted from the job?
- Who will actually do the work: you, or someone else?
- When can you start, and how long will it take?
- Will you need to turn the water or heating off, and for how long?
- What guarantee do you give on your work?
- Will you take away old parts and leave the area clean?
How they answer matters as much as what they say. Clear, unbothered answers are a good sign. Vague answers to straightforward questions aren't.
Red flags
- Pressure to decide on the spot, or "today only" prices
- Asking for a large payment in cash up front (a deposit for expensive parts can be reasonable; ask for a receipt)
- No written quote, or a quote with no breakdown
- No fixed address or business name
- Can't or won't show a Gas Safe card for gas work
- Turning up unsolicited to say your pipes, boiler or roof need urgent work
What does a reliable plumber charge?
Being reliable doesn't mean being the most expensive. Checkatrade's 2026 guide puts the UK average plumber hourly rate at about £50, with emergency rates of roughly £75 to £150 an hour plus a call-out fee of around £100 to £120. One 2026 study found most emergency plumber websites it looked at published no prices, so always ask for the price before work starts.
Typical job prices are in our guides to plumber hourly rates, leak repair, toilet replacement, radiator replacement and bathroom installation. The exact figure always comes from the plumber's written quote. For comparing quotes, see how to get a good quote from a tradesperson.
Find one before you need one
The best time to find a plumber is before an emergency. Save a number in your phone now, find your stopcock (see what to do if a pipe bursts), and you'll be in a much better position when something goes wrong.
Our recommendation in Market Harborough
We can pass your enquiry straight to the plumber we used and trust. We're not paid for recommendations. We just pass you to people we trust.
Message us about a plumberFree. We pass you straight to the tradesperson we trust.
More about our plumber, or for urgent leaks see our emergency plumber page. If you live in hard water LE16, our guide to hard water in Market Harborough is worth a read too.
Typical prices
| Job | Typical range | Notes |
|---|---|---|
| Plumber hourly rate | £40–£60 per hour | Checkatrade 2026 UK average about £50 |
| Emergency call-out fee | £100–£120 per job | Checkatrade 2026, on top of labour |
| Emergency plumber hourly rate | £75–£150 per hour | Checkatrade 2026 |
Frequently asked questions
How do I find a trustworthy plumber?
Start with a recent personal recommendation from someone you know, or search the WaterSafe register of approved plumbers by postcode. For anything involving gas, check the engineer on the Gas Safe Register. Then get a written, itemised quote, ask about insurance and guarantees, and confirm who will actually do the work.
What questions should I ask a plumber before hiring?
Ask whether they have done this job before, whether they are Gas Safe registered if gas is involved, whether they belong to WaterSafe or an approved scheme, and whether they have public liability insurance. Ask if the price is a fixed quote or an estimate, whether VAT is included, who does the work, and what guarantee they give.
Does a plumber need to be registered?
For water-only work there is no legal registration requirement, although approved contractor schemes and the WaterSafe register show a plumber has been vetted. For any gas work, including boilers and gas hobs, the engineer must by law be on the Gas Safe Register and qualified for that category of work.
How much should a plumber charge per hour?
Checkatrade's 2026 guide gives a UK average of about £50 an hour for standard plumbing work. Emergency and out-of-hours rates are higher, at roughly £75 to £150 an hour, usually with a call-out fee of around £100 to £120. Many jobs are priced as a fixed sum instead, so ask for a written quote.
Should I pay a plumber up front?
Paying the full amount before work starts is a red flag. A deposit to cover expensive parts, such as a boiler or bathroom suite, can be reasonable on larger jobs, but get a written quote and a receipt, and ideally pay by card or bank transfer so there is a record. Pay the balance once the job is finished.