How to choose a plumber
Check three things before anybody starts: the right registration for the work (Gas Safe for gas, G3 for unvented cylinders), public liability insurance, and a written price that states whether it is fixed or hourly and what parts are included. Those three cover almost every way a plumbing job goes wrong.
Plumbing is not a licensed trade, and that matters
Anybody in England can call themselves a plumber. There is no single legal register for water-only work, which is why the checks fall to you. What is regulated are the dangerous parts: gas work requires Gas Safe registration by law, and unvented hot water cylinders require a G3 qualification. Voluntary schemes such as WaterSafe and CIPHE membership sit above that and are a reasonable proxy for someone who takes the trade seriously, but they are not compulsory, so their absence alone is not damning.
The five-minute check
- Registration where it applies: ask for the Gas Safe card and check the number on the register, or the G3 certificate for cylinder work. A genuine engineer expects the question.
- Public liability insurance: ask for the certificate and look at the sum insured. Water damage claims run into thousands quickly, so this is not a formality.
- A real trading address and history: a business name that has existed for years, a landline or a consistent mobile, and reviews that mention specific jobs rather than generic praise.
- A price in writing: even for a small job, a text or email stating the figure, whether it is fixed or hourly, and what parts are included.
- Clarity on making good: who lifts the floor, who puts it back, who replaces the tile that has to break. Agree it before, not during.
Warning signs
The pattern is consistent. Pressure to decide immediately on a job that has waited three months. A large cash deposit requested before any materials exist. Refusal to put a figure in writing. A diagnosis given without looking, particularly one that jumps straight to the most expensive answer, such as a new boiler or a full power flush before anything has been tested. And no willingness to explain what failed and why, which is often the sign of someone who does not know.
Judging the quote itself
A useful quote separates labour, parts and any making good, and says how long the work should take. It also says what happens if the job turns out to be different once the panel is off, which is common in older Teesside housing where a simple repair reveals forty-year-old pipework behind it. The right answer is not a blank cheque, it is a rule: work stops, you get a revised figure, you decide. If the quote is time and materials with no cap at all, ask for a not-to-exceed figure. Benchmarks for what things should cost are in the Teesside cost guide.
Local knowledge is worth something
A plumber who works the TS postcodes regularly knows what is behind the walls before they open them: microbore heating in the interwar semis around Billingham and Acklam, lead and early copper still lurking under solid floors in the Middlesbrough and Hartlepool terraces, push-fit plastic throughout Ingleby Barwick and Wynyard, and salt-corroded external fittings along the Redcar and Saltburn seafront. That knowledge shortens the diagnosis, which is the part of the visit you pay for. It also means the person is nearby when something needs looking at again.
After the work
Ask for a written note of what was done and what parts went in, keep it with the house paperwork, and ask what will need attention next. Then, if the job went well, use the same person again. Continuity is genuinely valuable in plumbing: the second visit to a house is always faster, because the system is already understood. The emergency page covers what happens when there is no time to choose, which is exactly the situation worth avoiding by choosing early.