Commercial plumbing in London
Most shops, office floors and restaurants cannot shut for the day just so a plumber can work. So we plan each visit around your opening hours and your tenants, not the other way round. Once the job is finished, we report to the manager, agent or freeholder who has to sign it off.
- Fully insured and Gas Safe registered
- Engineers DBS-checked
- 24/7 emergency callouts
- Price agreed before we start
- Workmanship guaranteed
Monday – Sunday, 7:00 AM – 10:00 PM · Out-of-hours emergency? Call 020 3576 5825
Get a price for commercial plumbing
Name, phone and postcode are all we need to start. Everything else can wait.
Thank you — your enquiry is in
Expect a call back on the number you entered. For anything urgent, there is no need to wait: ring 020 3576 5825.
Included in the job
- Washrooms fitted, repaired and maintained
- Boiling taps, tea points and office kitchens
- Plumbing for commercial kitchens
- Fit-outs and shopfront washrooms for retail units
- Drain clearance and CCTV surveys on commercial sites
- Reactive repairs on behalf of landlords and managing agents
- Communal systems across blocks of flats
- Overnight and out-of-hours visits
Premises we look after
Office washrooms and kitchens
Boiling taps, tea points, dishwashers and the washrooms the whole building relies on. The hard part is rarely the plumbing itself; it is getting access. So we come in early, late or at the weekend, and a floor of desks does not sit empty while a tap is swapped.
Commercial kitchens
Grease traps, hot water that keeps up with heavy demand, dishwasher and glasswasher connections, and drainage sized for volume, not for a sink at home. If the kitchen cannot open, you lose a service. We book these jobs around your covers and bring along the parts most likely to fail.
Retail units
Fit-outs, customer WCs and staff washrooms, plus the reactive jobs that come from sharing a stack in a parade or shopping centre. If the landlord or centre management must approve the work, we supply the paperwork they ask for, so you are not left chasing it.
Read this before you ring
You may find you can sort some of this yourself, without calling us. We are fine with that, and would rather you knew it.
Your trading hours come first
In restaurants and shops this tends to mean early mornings, evenings or overnight. Give us your trading pattern when you first get in touch, and we will plan the work to fit it, not cut across it.
Records for whoever signs the job off
A verbal all-clear is rarely enough for managing agents, freeholders or landlords. Tell us which person needs which records, and our engineer will note the job to suit while on site.
Shared stacks in blocks of flats
One flat may report the blockage, but the cause often sits in the shared stack, and several flats can be affected at once, not only the one that rang. Most of the job is getting into the right flats on the first visit. Miss one, and a second trip is needed for work that should have been finished the first time.
Commercial jobs are part of our normal week
Every week Ninja Plumbers works in offices, restaurants, shops and blocks of flats as well as homes. Fitting around opening hours, tenants and managing agents is something we already know how to do, not something we work out when we arrive.
What changes the price
Commercial work is priced on the job and the conditions around it. The same repair can cost more overnight, around a kitchen that reopens for breakfast, than on an ordinary weekday, and it helps to know why.
When the work can happen
Early mornings, evenings, overnight and weekend slots keep your business trading, but they can cost more than working through a normal weekday. Where part of the job can be done during the day without disrupting anyone, we can look at splitting it to keep the price down.
Building access and sign-in
Managed buildings often mean signing in with security, booking a loading bay or goods lift, waiting for a keyholder, or working under a permit. None of it is difficult, but it all takes time on site, and that time is part of the price.
Paperwork before and after
Some sites need risk assessments and method statements before an engineer can start, and a written report, photos or sign-off sheets afterwards for the managing agent or landlord. Tell us what is required at the start, so it is priced in rather than added later.
Commercial fittings and repeat work
Sensor taps, urinal flush controls, boiling water units and heavy-duty commercial fittings cost more than domestic equivalents. On the other hand, replacing the same fitting across several washrooms or floors in one programme is usually cheaper per item than piecemeal callouts.
We agree the price with you before any work begins, and accept both card and cash.
Questions we often get
Can the work happen outside our opening hours?
Yes. In restaurants, shops and offices it is often the only sensible option, so we plan around your trading instead of working through it.
Do you offer ongoing maintenance?
Yes. Call the management line to discuss reactive and planned cover for one property or a whole portfolio.
Do you carry out work for managing agents?
Often, including reactive repairs in managed blocks and work on communal drainage.
Which of your numbers should I ring?
Ring the booking line for a quick one-off repair. Ongoing, commercial or account work goes best through the management line, which reaches someone with the authority to agree terms.
Can you keep some of the washrooms open while you work?
Usually, if the pipework allows it. The question is how the building’s water is split up: a modern fit-out often has isolation valves for each washroom or floor, while an older building may have one valve that shuts off everything. We check what can be isolated before the job is planned, so you know in advance which facilities will be out of use and for how long.
Our site has children or vulnerable residents. Who will you send?
Ninja Plumbers engineers are directly employed rather than subcontracted, and they are DBS-checked, so the person who arrives works for us, not for a third party. If you have your own rules — signing in at reception, wearing a visitor badge, being accompanied in certain areas, or working only outside school or care hours — tell us when booking and the engineer will follow them.
Other plumbing jobs we do
-
Emergency Plumbing
For burst pipes, serious leaks or a house with no water. The phone is answered at any hour and an engineer is sent out.
Read about Emergency Plumbing -
General Plumbing
Radiators, pipework, taps and toilets: the small jobs that keep getting put off.
Read about General Plumbing -
Leaking Ceiling
Water dripping or pouring through a ceiling. What to do first, then the source found and stopped — in your home or the flat above.
Read about Leaking Ceiling -
Leak Repair
Leaks you can see — dripping joints, weeping valves, perished hoses, overflows running outside — isolated, repaired and checked properly afterwards.
Read about Leak Repair -
Leak Detection
Acoustic and thermal equipment to trace hidden leaks before any floor is lifted.
Read about Leak Detection -
Toilet Repair
Toilets that will not flush, keep running, fill slowly or leak onto the floor. Usually one worn part, replaced without needing a new toilet.
Read about Toilet Repair -
Tap Repair and Replacement
Dripping, stiff and leaking taps repaired, and tired ones swapped for new.
Read about Tap Repair and Replacement -
Pipe Repair
Burst, split, frozen and corroded pipework repaired — or replaced where patching it would be pointless.
Read about Pipe Repair -
Low Water Pressure
Weak taps and showers diagnosed by testing, not by swapping parts and hoping.
Read about Low Water Pressure -
Lead Pipe Replacement
Old lead supply pipes replaced with new, from the boundary into the house.
Read about Lead Pipe Replacement -
Gas Safety Certificates
Your landlord gas safety certificate, checked and issued by a Gas Safe registered engineer and emailed over the same day.
Read about Gas Safety Certificates -
TMV Servicing & Testing
Thermostatic mixing valves tested, cleaned and reset, with a record for every valve, for schools, nurseries, care and business premises.
Read about TMV Servicing & Testing
Small business plumbing
The plumbing in most small premises is much like a home’s, only it works harder and can less afford to be out of action. Choose your type of business to see what we do for places like yours. For toilet and changing-room refits, see commercial washroom refurbishment.
Food and drink
Shops and local services
Hair and beauty
Health and care
Fitness, dance and the arts
Offices and workplaces
Property and places to stay
Education and community
Looking for commercial plumbing in London?
Tell us what is wrong and where you are, and you will have the price before any work begins.