Leak detection and tracing
Hidden leaks traced in walls, floors and ceilings, with a written report and photos for your insurer if you need one.
Find out more about leak detection and tracingHomes and businesses · London
Plumbing, heating, bathroom, leak detection and urgent repairs across North, West, East and Central London.

Our services
Pick a service to find out more, or book it straight away.
Hidden leaks traced in walls, floors and ceilings, with a written report and photos for your insurer if you need one.
Find out more about leak detection and tracingEmergency call-outs for burst pipes, leaks and no water, 8am to 11pm. We aim to arrive within 1 to 1.5 hours.
Find out more about urgent repairsNew radiators fitted or swapped, plus bleeding and balancing so every room heats up.
Find out more about central heating and radiatorsSludge flushed out of your heating system to help your radiators heat evenly.
Find out more about power flushingTaps, toilets, showers and everyday fixes, done properly the first time.
Find out more about repairs and maintenanceAll the plumbing for your bathroom refurbishment, planned with you before we start.
Find out more about bathroom plumbingWhole-property pipework, unvented hot water cylinders and complicated systems, surveyed, quoted & job done.
Find out more about re-piping and complex installsReactive plumbing for facilities management companies, managing agents and landlords, plus subcontract work for contractors and builders.
Find out more about commercial plumbing
Why JZ
Evenings and weekends included. For urgent jobs we aim to arrive within 1 to 1.5 hours.
Everything we do and every part we use, shown to you.
Your full price, including parts, is confirmed before any work starts.
What we found, where it was and what we fixed, with photos for your insurer. Just ask before the job starts.
How booking works
Pick the job, your postcode and a day and time that suit you.
We ring you to confirm the time, and the price if we can give it over the phone. Nothing is booked until then.
We’ll be in touch immediately, 8am–11pmAt the time we agree, or within 1 to 1.5 hours if it’s urgent.
We test the repair and show you what we did. Need a written report? Tell us before the job starts.
About JZ
We’re a trusted London plumbing company, here for the last 6 years. We know first-hand how we’d want a tradesperson to come into our own home: clear prices, no hassle and one point of contact.
We’re a close, professional team of qualified plumbing engineers, many of them in-house. Eesa is your one point of contact, from the first call to the final invoice.
We’ve served 2,300+ customers across North, West, East and Central London, homes and businesses alike.
Leak detection and leak tracing
We always use non-invasive methods first, and only dismantle if needed. Then we fix the leak and, if you need it, write up what we found.
Ready to send to your insurer, landlord or managing agent.
Commercial
We work closely with facilities management companies and take on subcontract plumbing for contractors and builders, across North, West, East and Central London.

Schematic map, not to scale.
Areas we cover
Every postcode in N, NW, W, WC, EC and E, plus SW1, SW3, SW5, SW6, SW7 and SW10, including:
South of the river: we take urgent jobs there. Call to check we can reach you.
Reviews
Guides
Emergencies
Usually under the kitchen sink, but not always. How to find it and turn it off fast.
Leaks
A water bill that jumps, a damp patch that spreads, or pressure that drops. What to check before you call.
Winter
Lag exposed pipes, protect the outside tap and know what to do if a pipe freezes.
Insurance
The insurance cover that pays to find a leak, and how our written report helps your claim.
Questions
Pick the job, a day and a time that suit you, then send the request. We’ll be in touch immediately, 8am to 11pm, to confirm the time, and the price if we can give it over the phone. Nothing is booked until we’ve spoken.
For urgent jobs we aim to arrive within 1 to 1.5 hours, 8am to 11pm, 7 days a week. Planned jobs happen at the time we agree with you.
We can often give you a quote over the phone. If the job is urgent, or we can’t price it over the phone, we’ll quote when we visit. There’s no VAT to add.
We understand some customers may struggle with the cost. At our discretion, we can offer a discount where possible once we’ve given you a price. Please talk to us about this before any site visit or work is carried out, with proof such as your state pension or benefits. We’ll do our best to lower the cost for customers who need extra help.
Yes. If you need one for your insurer, let us know before the job starts.
By card, bank transfer or cash.
North, West, East and Central London: every postcode in N, NW, W, WC, EC and E, plus SW1, SW3, SW5, SW6, SW7 and SW10. South of the river, we take urgent jobs. Call to check we can reach you.
Book online or call us, 8am to 11pm, 7 days a week.