Plumber Prices in South London
Transparent, honest pricing from a Gas Safe registered engineer. No hidden fees, no call-out surprises. Below you will find our standard charges for diagnostics, servicing, common repairs, and installations.
Diagnostic Visits
Every repair starts with a diagnostic visit: we come out, find the fault and give you a written price before any repair begins. The diagnostic visit is charged as its own job. It is payable once the investigation has been completed, and is not deducted from any later repair. One diagnostic visit covers every fault reported for the same property visit.
Standard
£75 +VAT
Monday to Friday, 8 am to 5 pm
We attend your property, diagnose the issue, and provide a written quote for the repair.
Complex
£150 +VAT
Monday to Friday, 8 am to 5 pm
Where the fault needs a longer investigation, for example intermittent faults, system-wide problems or more than one appliance. We tell you before we start which applies.
Boiler Servicing
Regular servicing keeps your boiler safe, efficient, and covered by the manufacturer’s warranty. All services include a Gas Safe certificate.
Safety Check
£95 +VAT
Visual inspection, flue-gas analysis, and Gas Safe certificate. Ideal for landlords who need a CP12.
Safety Plus Service
Most Popular
£140 +VAT
Everything in the Safety Check plus a hot-flush clean of the heat exchanger and system-pressure check. Our recommended annual service.
Full Strip-Down Service
£300 +VAT
Complete strip-down, individual component inspection, full clean, and rebuild. Recommended if your boiler has not been serviced for two or more years.
Common Repair Costs
These are typical price ranges for parts and labour on the most common boiler and plumbing repairs. Your exact quote is confirmed after the diagnostic visit.
| Repair | Typical Price (ex. VAT) |
| PCB (circuit board) replacement | £400 – £800 |
| Boiler fan replacement | £280 – £500 |
| Diverter valve replacement | £220 – £400 |
| Gas valve replacement | £300 – £550 |
| Expansion vessel replacement | £175 – £280 |
| System pump replacement | £280 – £450 |
| Motorised valve (2-port / 3-port) | £220 – £380 |
| Thermostatic radiator valve (TRV) | £140 – £220 |
| Radiator replacement (single) | £300 – £550 |
| Filling loop replacement | £140 – £200 |
| Toilet fill / flush valve | £150 – £250 |
| Tap cartridge replacement | £150 – £250 |
| Isolation valve replacement | £150 – £280 |
| Leaking pipe repair | £150 – £350 |
All prices exclude VAT (20%). Exact pricing confirmed after diagnostic visit.
All repairs start with a diagnostic visit.
Boiler Installations
Every installation includes: removal and safe disposal of the old boiler, supply and fit of the new boiler, full system flush, Benchmark commissioning, and Building Regulations notification.
Prices start from £2,900 +VAT for a straightforward like-for-like swap. We will survey your property and provide a fixed written quote before any work begins.
Landlord Gas Safety Record (LGSR / CP12)
A legal requirement for all rented properties. We inspect every gas appliance and flue, then issue your certificate the same day.
From £95 +VAT
Single appliance. Additional appliances charged at £30 +VAT each.
How We Price Work
Diagnose First
Fixed Quotes
No Hidden Fees
Gas Safe Registered
633735
Serving South London
Since 2019
Google Reviews
4.9 Stars
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Whether you need a diagnostic, a service, or a quote for a new boiler, we are here to help.