Plumber Cost in London 2026 -- What You'll Pay and Why
Hourly rates, call-out fees, emergency surcharges and fixed prices for 25 common plumbing jobs in London
At a Glance
London Plumber Rates -- 2026 Summary
Standard hourly rate
£60-90/hr
Most London plumbers, Mon-Fri 8am-6pm
Emergency (out-of-hours)
£100-150/hr
Evenings, weekends and bank holidays
Call-out fee
£60-80
Waived on longer jobs at many firms
London vs National
How London Rates Compare to the Rest of the UK
Full Price List
Fixed Prices for 25 Common Plumbing Jobs in London
All prices include labour. Parts are additional unless stated. Prices reflect standard London rates for 2026 -- call for a fixed quote specific to your job.
| Job | Typical Cost (parts + labour) | Duration |
|---|---|---|
| Dripping tap (washer replacement) | £60-120 | 30-60 min |
| Tap replacement | £100-200 | 1-2 hrs |
| Toilet cistern mechanism | £80-150 | 30-60 min |
| Toilet replacement | £150-300 | 2-3 hrs |
| Radiator bleed + pressure check | £60-100 | 30 min |
| Radiator replacement | £200-400 | 2-4 hrs |
| TRV valve replacement | £60-120 | 30-60 min |
| Leak repair (accessible) | £80-200 | 30-90 min |
| Pipe section replacement | £150-400 | 1-3 hrs |
| Stopcock replacement | £80-180 | 1 hr |
| Outside tap installation | £150-300 | 2-3 hrs |
| Blocked drain clearance | £80-200 | 30-90 min |
| CCTV drain survey | £150-300 | 1-2 hrs |
| Power flush | £350-600 | 4-8 hrs |
| Boiler service | £80-120 | 45-90 min |
| Boiler repair (minor) | £80-200 | 1-2 hrs |
| Boiler repair (major) | £300-800 | 2-4 hrs |
| Boiler replacement (combi) | £2,200-3,800 | 1-2 days |
| Gas safety certificate (CP12) | £75-120 | 30-75 min |
| Bathroom installation | £2,000-5,000 | 3-7 days |
| Kitchen sink replacement | £150-350 | 2-4 hrs |
| Immersion heater replacement | £150-250 | 1-2 hrs |
| Shower installation | £400-800 | 1 day |
| Underfloor heating (per room) | £600-1,500 | 1-2 days |
| Emergency call-out (incl. 1hr) | £100-200 | Varies |
Prices are typical London market ranges for 2026 and include VAT. Exact price depends on your location, access and parts chosen. Get a fixed quote before authorising any work.
Price Factors
What Affects the Price of a London Plumber
The same job can cost 40-60% more depending on these five variables. Understanding them helps you budget accurately and push back on inflated quotes.
Zone and location
Zone 1-2 adds 20-40 pounds per job vs outer London. Parking permits in central zones cost plumbers 20-60 pounds per day -- that cost passes to you. The congestion charge (15 pounds/day for vans) applies inside the central London zone.
Access difficulty
Basement flats, high-rise buildings with no lift, narrow Victorian terraces and properties with no nearby parking add 50-150 pounds to most jobs. A simple tap replacement that takes 45 minutes in a house with a driveway can take 2 hours in a fourth-floor walkup flat with restricted access.
Time of day
Standard hours (Mon-Fri, 8am-6pm): base rate. Evening and weekend work adds a 30-50% premium. Bank holidays typically add 50-100%. Out-of-hours rates are unavoidable for genuine emergencies -- check what threshold triggers the uplift when you book.
Parts quality
Mid-range vs premium fixtures can double the material cost. A standard tap costs 30-80 pounds in parts; a premium designer tap runs 150-500 pounds. Ask your plumber to itemise parts separately from labour so you can make an informed choice.
Boiler age
Boilers over 12 years old often need parts that are no longer held in stock. Special-order components add 2-5 days to the repair and sometimes a premium of 30-80 pounds over standard part prices. This is especially common with older Worcester Bosch, Baxi and Vaillant models.
Fixed Price
When Fixed Price is Better
Fixed price is the right choice for most standard plumbing jobs. You know the total cost before any work starts, so there are no surprises on the invoice.
Tap replacement, toilet installation, radiator swap -- all standard duration
Boiler service -- defined scope, known time
Outside tap installation -- fixed materials and method
Any job where the problem is already diagnosed
Best practice
Always ask for a fixed written quote before authorising work. A reputable plumber will not start without one.
Hourly Rate
When Hourly Rate is Better
Hourly billing makes sense when the full scope of work cannot be determined until investigation starts.
Leak tracing -- the source may be behind a wall and unknown until opened up
Drain diagnosis -- blockage location determines the repair method
Intermittent boiler faults -- may need test running time to trigger the fault
Investigation-only visits where a diagnosis is the output
Red flags
A plumber who refuses to give a fixed price for a standard job, or who starts work before quoting -- these are warning signs. Walk away.
Qualification Checks
How to Check a Plumber is Qualified in London
Unlike gas work, standard plumbing has no statutory licence in the UK -- which means anyone can call themselves a plumber. Here is how to verify you are hiring someone who knows what they are doing.
Gas work (boilers, gas fires, cookers)
Must be Gas Safe registered -- it is illegal in the UK for an unregistered person to carry out gas work
How to check: Verify at gassaferegister.co.uk using the engineer's registration number or name
Plumbing (non-gas)
No statutory licence required in the UK, but look for professional body membership as a quality signal
How to check: WaterSafe approved, CIPHE membership, NAPIT registration
Unvented hot water cylinders
Must hold a current G3 unvented qualification -- working on these without it is illegal
How to check: Ask for their G3 certificate reference number
Always ask for
Public liability insurance (minimum 1m pounds)
Written quote before work starts
Completion certificate or job sheet
Gas Safe card (for any gas work)
VAT receipt if applicable
Checklist
How to Get a Fair Quote from a London Plumber
Common Questions
Frequently Asked Questions
Get a Transparent Fixed Quote
No hidden fees, fixed price before work starts. Call now for a same-day quote -- most standard jobs can be booked for the next available slot in your area of London.
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