Commercial Plumber London
24/7 commercial plumbing for London offices, restaurants, shops, pubs and small businesses. Fixed quotes, monthly accounts, zero call-out fee on scheduled work.
60-minute target response across zones 1-3. Engineers Gas Safe, NICEIC and WaterSafe registered. Keep your business trading.
07456 975436Commercial plumbing for London businesses means the pipework, appliances and compliance obligations you encounter in offices, restaurants, shops, pubs, salons, clinics, hotels and schools — not the same problems a domestic plumber deals with. We provide 24/7 emergency response, fixed-price repairs, scheduled PPM and monthly account billing across all 32 London boroughs, with a 60-minute target response inside zones 1-3.
Why commercial plumbing is different
Commercial plumbing is not domestic plumbing at a bigger scale. The pipework runs at higher pressure (typically 3 to 5 bar on a commercial mains feed versus 1 to 2 bar in a house), the bore is larger (32mm and 42mm common where a house runs 15mm and 22mm), and the materials cope with loads that would overwhelm residential fittings. A commercial kitchen grease trap sees in a week what a domestic sink sees in a decade. An industrial water softener on a hotel rising main has to regenerate every 48 hours to keep up with bathroom demand.
The trading-hours pressure is the second big difference. A house can go three days without a working tap and the family manages. A restaurant cannot close for three days without losing its week's revenue and half its weekly repeat customers. Every commercial plumbing decision is shaped by the question of how fast the business can be back to trading, which is why our engineers carry the parts that fit the common commercial fit-out suppliers, why we price in writing before we start, and why we run a 24/7 rota so the timing of a failure does not dictate the timing of the repair.
Commercial legal duties are the third. The Water Industry Act 1991 sets obligations for how a non-domestic property connects to and discharges into the mains water and sewer system. The Workplace (Health, Safety and Welfare) Regulations 1992 require suitable and sufficient sanitary conveniences and washing facilities for every employee. Beyond that, sector-specific rules apply: the HSE Approved Code of Practice L8 on legionella (HSG 274 in practice) requires hot water storage above 60°C and cold water delivery below 20°C at the outlet; commercial gas work falls under CP42 rather than CP12; and food-service sites face Environmental Health inspection against grease-trap, backflow and water-quality standards that domestic plumbers rarely encounter. We work to all of these as standard, and the paperwork we issue matches the format EHOs and facilities auditors expect.
Sectors we cover
Eight commercial sectors make up the bulk of our London account work. Each has its own recurring plumbing issues, its own compliance expectations and its own trading-hours constraints. We run engineers trained on the specifics of each — a restaurant grease trap is not a hair salon backwash is not a school WC is not a hotel en-suite. The summaries below cover what we see most often on site.
Offices and shared workspaces
Small to medium offices, shared workspaces and serviced office buildings from Clerkenwell to Canary Wharf. We cover washroom taps and cisterns, kitchenette sink and dishwasher feeds, water coolers and chilled drinking taps, and the urinal flush systems that fail quietly until the cubicle floods. Typical repeat calls are failed float valves on mains-fed cisterns, kitchenette drain smells caused by dried-out bottle traps in rarely-used sinks, and blocked urinals from limescale build-up on 10mm flush pipes. Out-of-hours response means we attend before the morning commute so staff arrive to a working washroom.
Restaurants and cafés
Full-service restaurants, cafés, takeaways and dark kitchens across Soho, Shoreditch, Borough Market and Canary Wharf. Grease trap blockages are the single biggest callout — a trap left past its empty schedule solidifies the outflow line in days. We also handle dishwasher waste trap failures, combi-oven steam feed pressure drops, pot-wash sink leaks and cellar drainage backups. Weekend and overnight slots are standard so we can work between service windows. Every visit is logged against a job reference your head office can reconcile against the property file.
Retail and shops
Single-unit shops, chain retail and shopping-parade units. For retail, a failed staff toilet or a leaking shopfront tap means customers leave and revenue stops — response matters more than almost any other sector. We attend to WC and urinal breakdowns, hand-wash station compliance (a legal requirement under the Workplace Regulations 1992), stockroom sink leaks, and the frost-prone external tap lines that crack in January. Our fixed-price repairs cover most walk-in situations inside two hours, and we carry the parts that fit the common retail fit-out suppliers.
Pubs and bars
Pubs, wine bars, cocktail bars and late-night venues. Cellar drainage is the defining plumbing issue: a blocked cellar floor gulley turns a wet clean into a flood within minutes of wash-down. We clear cellar drains, repair beer-line leaks where the copper feed meets the coupler, replace cellar cooler water-supply solenoids, and service the mains-fed pre-rinse taps at the glasswash. For the upstairs side we handle hotel-style en-suites in pub accommodation and the kitchen plumbing that runs off the same rising main as the bar.
Hair salons and beauty
Hair salons, barbers and beauty clinics from Notting Hill to Islington. Backwash basin drainage is the recurring problem — long hair combined with conditioner builds a near-solid plug in the trap that plunging cannot shift. We clear basin traps, replace quick-boil under-counter water heaters when the thermostat fails, service thermostatic mixing valves on the basin taps (required under HSG 274 where staff and clients share), and repair the pumped-waste systems many salons fit because the basin runs below drain level. Response target 90 minutes so a Saturday client chair is not lost.
Dental and medical practices
Dental surgeries, GP practices, private clinics and minor cosmetic surgery rooms. Specialist waste traps, amalgam separators and thermostatic mixing valves on clinical hand-wash basins all have manufacturer-specified service intervals. We service amalgam separators to the ISO 11143 schedule, repair chair suction drainage, and carry out the annual TMV service required to maintain HTM 04-01 compliance. Gas-related work (autoclave gas feeds, medical-grade air lines) is coordinated with our Gas Safe side. All paperwork issued matches the CQC inspection format your practice manager files against.
Hotels and B&Bs
Boutique hotels, B&Bs, serviced apartments and small hotel chains. En-suite clusters on a single riser create complex balancing problems — a hot-water ring main that is 10 seconds too slow to deliver at the top floor turns into a bad review. We rebalance ring mains, trace and repair en-suite leaks between floors, repair bath overflow and shower tray waste failures (the most common cause of ceiling damage to the room below), and replace worn-out mixer cartridges in bulk so a 40-room refurb runs to schedule. Overnight attendance standard so guest rooms are back in use by check-in.
Schools and nurseries
Primary and secondary schools, independent schools, nurseries and sixth-form colleges. High-use children's WCs, low-level basins, non-concussive tap sets and anti-vandal cistern fittings all have a specification separate from adult commercial fit-outs. We service flush-valve cisterns, replace push-button tap cartridges with timed models, carry out the statutory legionella checks required under HSG 274 on shower rooms and changing rooms, and handle the out-of-hours work that must happen during term breaks. All engineers on school work hold enhanced DBS clearance.
Our commercial plumbing services
Ten core services cover almost every commercial plumbing call we take. For anything outside this list — specialist medical gas lines, industrial steam systems, large-scale boiler plant — we will either quote the work directly or introduce a specialist we work with. See also our blocked drains, leak detection and CCTV drain survey pages for full-depth detail on those services.
24/7 emergency repair
Dispatch within minutes of the call, target 60 minutes inside zones 1-3 and 90 minutes to zones 4-6. Engineers carry isolation gear, burst-pipe repair stock, WC spares and drain-clearance tools so most emergencies are made safe on the first visit. Fixed first-hour price quoted before the engineer sets off.
Commercial drain clearance
Rodding, hand-augering and high-pressure jetting of commercial foul and surface-water drains. Restaurant grease-line blockages, retail WC soil-pipe blockages, pub cellar gulley backups all handled same-visit where access permits. For persistent failures we follow up with CCTV and root-cutting.
Leak detection
Non-destructive leak detection on commercial pipework using acoustic correlation, thermal imaging and tracer gas. Suitable for concealed leaks in suspended ceilings, raised floors, and behind tiled walls where exploratory cutting would close the business for days. Full report issued for insurance trace-and-access claims.
Tap and cistern replacement
Commercial-grade tap and cistern replacement for high-use washrooms. We fit non-concussive taps, sensor taps, timed-flow push-button taps, low-flush concealed cisterns and urinal flush controllers from the approved Water Regulations Scheme (WRAS) range. Parts stocked from the main commercial fit-out suppliers.
Tap and shower installation
New tap set and shower installations for washroom refurbishments, kitchenette fit-outs and hotel en-suite projects. All work carried out to WRAS and BS EN 1717 backflow prevention requirements. Thermostatic mixing valve commissioning certificates issued where the specification requires.
Commercial water heater install
Under-counter and wall-mounted water heater installation for kitchenettes, staff kitchens and pantry areas. Point-of-use heaters from 10 to 100 litres, instant boiling-water taps and quick-boil units. Flow rates, electrical supply and discharge arrangements specified to match the use case.
Pipework alteration
Pipework alteration and re-routing during tenant fit-outs, refurbishments and extensions. Copper, MDPE, plastic push-fit and stainless steel as specified. Isolation and re-commissioning coordinated with the building management so water-down periods fall outside trading hours.
Commercial unblocking
Commercial WC, basin, sink and urinal unblocking. Sanitary waste, paper towel blockages and fatty food debris handled with the correct tools — electric eel for 50mm to 100mm lines, high-pressure jetting for 100mm-plus foul runs. Most unblocking jobs completed within the first-hour rate.
Jet-Vac drain cleaning
High-pressure Jet-Vac cleaning for blocked main sewers, interceptors and commercial grease lines. The combined jetter-and-vacuum approach lifts debris in the same pass rather than pushing it downstream. Booked as one-off emergency attendance or on a scheduled preventative cycle. See our full tanker service below.
Annual compliance check
Annual commercial plumbing compliance audit covering legionella temperature monitoring (HSG 274), backflow prevention tests, WRAS fittings verification, thermostatic mixing valve service, and water quality sampling where relevant. Full written report issued against your compliance file, suitable for EHO inspection.
24/7 emergency commercial response
When commercial plumbing fails, the cost of downtime is almost always higher than the cost of the repair. A flooded retail unit loses a day of trading; a restaurant with a broken grease trap loses evening service; an office with no working washroom sends staff home. Our response model is built around getting to site fast and making the business safe to carry on trading while the repair is completed.
Response targets are measured, not advertised. Across 2,400 emergency jobs last year we averaged 58 minutes arrival inside zones 1-3 (Westminster, City of London, Kensington and Chelsea, Camden, Islington, Hackney, Tower Hamlets, Southwark, Lambeth, Wandsworth, Hammersmith and Fulham) and 84 minutes across zones 4-6 (Ealing, Haringey, Greenwich, Lewisham, Brent, Merton, Barnet, Bromley, Croydon, Enfield, Harrow). The dispatcher confirms an arrival window before the call ends, and updates by text if traffic changes the ETA.
While you wait, the single most useful thing you can do is isolate the water. Every commercial unit has an internal stopcock — usually in the plant room, under the kitchen sink, or in the meter cupboard — and closing it stops further damage while we travel. If the leak is on a hot feed, isolate the cylinder or combi-boiler supply at the gate valve on the cold mains into the unit. If electrics are affected, isolate at the consumer unit. Photograph the scene if the damage is significant enough that your insurance may get involved; timestamped photos strengthen any future trace-and-access claim.
On arrival, the engineer's first job is to minimise downtime. For a split pipe that means a push-fit isolation and a scheduled come-back to rebuild properly. For a blocked drain during service hours that means a temporary clear and an overnight Jet-Vac to finish the job. For a failed cistern in a single-WC retail unit it means a same-visit replacement with a WRAS-approved unit from van stock. Every decision is made with the trading-hours question in mind.
| Zone | Target Response | Boroughs |
|---|---|---|
| Zones 1–3 | 60 minutes | Westminster, City of London, Kensington & Chelsea, Camden, Islington, Hackney, Tower Hamlets, Southwark, Lambeth, Wandsworth, Hammersmith & Fulham |
| Zones 4–6 | 90 minutes | Ealing, Haringey, Greenwich, Lewisham, Brent, Merton, Barnet, Bromley, Croydon, Enfield, Harrow |
Pricing — transparent for commercial clients
Commercial clients buy certainty, not the lowest hourly rate. The table below shows the ranges we quote in writing before any work starts. Monthly account holders pay no call-out fee on scheduled work — the labour rate starts from when the engineer arrives on site, which typically saves 20 to 35 per cent against ad-hoc bookings across a year of repairs. See our published pricing page for the underlying hourly rates and common-job flat fees.
| Service | Typical Cost | Notes |
|---|---|---|
| Emergency call-out (24/7) | £120–£180 | First hour, London-wide, same rate day/night/weekend |
| Day rate (standard hours, on account) | £75–£95/hour | Mon–Fri 08:00–18:00, minimum 1 hour |
| Fixed-price repair (most jobs) | £150–£450 | Quote confirmed in writing before work starts |
| Monthly account minimum | £200/month | Opens 30-day account billing, PO-backed invoicing |
| Scheduled PPM (on account) | From £0 call-out | No call-out fee on scheduled work, fixed labour rate |
| Out-of-hours non-emergency | £95–£125/hour | Planned after-hours work for trading-hours sensitive sites |
Prices exclude VAT. Monthly account holders pay no call-out fee on scheduled non-emergency work. Fixed price confirmed in writing before work begins.
Monthly account billing for London businesses
A monthly account replaces the cycle of paying, chasing receipts and reconciling individual job invoices with a single itemised invoice on the first working day of each month. Each line on the invoice carries your purchase order, job reference and property address in whatever format your finance team imports into Xero, QuickBooks, Sage, FreeAgent, Qube or MRI. For multi-site businesses we group lines by cost centre so the finance team can allocate recharges without a manual split.
Opening an account takes a short credit check (Experian commercial) and a completed account application form. 30-day terms are standard; 60-day terms available for established portfolios trading with us more than 12 months. VAT breakdowns appear on every line, with the VAT-inclusive and VAT-exclusive totals shown at the foot of the invoice. Consolidated invoicing saves 4 to 6 hours of finance-team time per month on a 20-site portfolio, based on figures reported by our larger account holders.
For landlords, letting agents and block managers specifically, our property manager account page explains the full portfolio-level terms, including named account manager, compliance calendar and zero call-out fee on scheduled PPM work. For landlords with a single investment property rather than a portfolio, see our landlord service page. PPM contracts across portfolios are priced on our PPM contracts London page.
Scheduled PPM for commercial clients
Planned preventative maintenance catches 60 to 80 per cent of what would otherwise be an emergency call-out. A grease trap emptied on the 4-weekly schedule never backs up into the kitchen. A legionella temperature log audited quarterly keeps you compliant with HSG 274 and defensible at Environmental Health inspection. A backflow prevention device tested annually is not the cause of a boil-water notice at your site.
All scheduled PPM work below is delivered with zero call-out fee when booked ahead on a monthly account. You pay only the fixed labour rate plus parts — the same rate as an office-hours attendance.
- Annual water quality check and temperature monitoring logbook
- Biannual high-pressure drain jetting for restaurant and pub kitchens
- Monthly grease trap empty and FOG waste consignment note
- Quarterly legionella temperature log audit under HSG 274
- Annual backflow prevention test (double check valve and RPZ)
- Annual commercial boiler service and CP42 certificate where applicable
- Annual thermostatic mixing valve service on clinical and hospitality sites
- Pre-winter lagging and frost-stat check on exposed pipework
For commercial gas appliances — commercial boilers, catering gas ranges, laundry gas dryers — see our gas safety certificate page which covers CP42 commercial certification. For statutory electrical inspection on commercial premises see our EICR London page.
Areas covered — commercial plumbing across London
All 32 London boroughs, with a 60-minute target response across zones 1-3 and 90 minutes to zones 4-6. Commercial density is highest in Westminster (hotels, restaurants, government), Hackney (restaurants, retail, creative studios), Southwark (Borough Market, London Bridge hotels, riverside offices), Tower Hamlets (Canary Wharf financial district, Shoreditch bars), and Kensington and Chelsea (hotels, clinics, high-end retail).
For commercial plumbing in outer boroughs — Ealing, Croydon, Greenwich, Hammersmith and Fulham, Haringey, Islington, Camden, Lambeth and Wandsworth — we run the same 24/7 dispatch and monthly account structure. Outer borough response is closer to 90 minutes on emergencies due to travel distance rather than crew availability.
Why choose us for commercial work
Response time guarantee
Target 60 minutes zones 1-3, 90 minutes zones 4-6, measured against actual arrival times across 2,400+ jobs a year. If we miss the target on an emergency account-holder call, the first hour is waived.
NICEIC, Gas Safe and WaterSafe registered
Every engineer is registered against the correct trade body for the work they do. Gas Safe for gas appliances, NICEIC for electrical work, WaterSafe for cold and hot water installation. Registration numbers on every job pack.
£10m commercial liability insurance
Full £10m public liability and £10m employer's liability, with documentation available to your insurance broker or facilities team on request. Cover matches the threshold most managed-block freeholders and commercial landlords require in contractor schedules.
DBS-checked engineers
Every engineer on school, nursery, care home and healthcare work holds an enhanced DBS check. Certificates provided on request and re-verified every three years. Important for any site with children, vulnerable adults or restricted-access clinical areas.
Fixed price before work starts
Every job priced in writing before the engineer starts. Whether that is a first-hour emergency rate or a £4,500 washroom refurbishment, you know the figure before you commit. No discovery charges, no end-of-job surprises, no unapproved overtime.
Frequently asked questions
Short answers to the questions we hear most often from commercial clients opening accounts. Anything not covered, call 07456 975436. For related services see our emergency plumber page and tanker services page.
Do you work with small businesses or only large companies?
What's your commercial call-out fee?
Can you open a monthly account for my office?
Do you cover weekends and bank holidays?
Are your engineers DBS checked?
Can you quote for a refit or extension?
Do you do commercial drain jetting?
What's your SLA for food-service clients (restaurants, pubs)?
Do you provide annual compliance paperwork?
Can you invoice my accounts software directly (Xero, QuickBooks)?
Need a commercial plumber now?
24/7 dispatch across every London borough. 60-minute target response zones 1-3. Fixed quote in writing before work starts.
Monthly account available after a short credit check. No call-out fee on scheduled work.
Landline: 0207 046 1363 · 70 Gracechurch Street, London EC3V 0HR