Electric Shower Installation — SW11
Electric shower installation SW11
Part P registered electricians installing and replacing electric showers across the SW11 postcode — Battersea & Clapham Junction, London. From £350 for replacement, £550 for new installation with cable run. Same-day available.
Why electric showers suit SW11 properties
Independent of your boiler — ideal for Battersea & Clapham Junction flats
Electric showers draw cold water directly from the mains and heat it on demand — no stored hot water, no reliance on the boiler. For SW11 flats and converted properties where a combi boiler cannot sustain multiple simultaneous hot water draws, an electric shower eliminates the contention entirely.
The installation requires only a cold water supply connection and a new dedicated circuit from the consumer unit. We size the cable to the unit: 6mm twin-and-earth for 8.5kW and 9.5kW models, 10mm for 10.8kW. RCD or RCBO protection is fitted on every circuit, and we handle Part P Building Regs notification to your local authority. You receive an electrical installation certificate and a Building Regs completion notice.
Thermostatic electric showers are the recommended choice for SW11 mansion blocks and high-rises where shared mains risers cause pressure variation. A thermostatically controlled unit maintains a stable outlet temperature regardless of fluctuations elsewhere in the building — eliminating the scalding or cold surge risk of standard single-control models.
What we install
Electric shower services
8.5kW standard shower
Entry-level electric shower ideal for properties with lower mains pressure. Suitable for older London flats where a 6mm supply cable is already present. Reliable flow for everyday use.
9.5kW mid-range shower
The most popular choice for London households. Improved flow rate over 8.5kW units, operates independently of the boiler, and typically runs on a 6mm cable from a dedicated 40A MCB.
10.8kW high-power shower
Maximum flow rate for electric showers. Requires a 10mm supply cable and 45A RCD-protected circuit. Recommended for family homes and properties with good mains pressure.
Like-for-like replacement
Swap an existing electric shower unit onto the current supply cable and circuit without new cabling. Fastest and most cost-effective option where the existing wiring meets current regs.
New circuit installation
Full installation including new dedicated circuit from consumer unit, correctly sized cable run (6mm or 10mm), RCD protection, and Part P Building Regs notification to your local authority.
Thermostatic electric shower
Thermostatic models maintain a constant outlet temperature regardless of mains pressure fluctuations — ideal for London flats where pressure can vary. Prevents scalding and cold surges.
Transparent pricing
Electric shower installation cost
Like-for-like replacement
from £350
- Swap existing unit on current cabling
- Part P compliance check
- RCD protection verified
- Test certificate issued
- Building Regs notification if required
New installation with cable run
from £550
- New dedicated circuit from consumer unit
- 6mm or 10mm cable sized to kW load
- RCD-protected 40A or 45A MCB
- Part P Building Regs notification
- NICEIC electrical installation certificate
Prices include labour, standard fittings, and Part P notification. Supply of shower unit quoted separately or installer-supplied units available. Final price confirmed before work starts.
Book today in the SW11 area
Electric shower installation in the SW11 area
Part P registered electricians. Same-day slots available. All work fully notified to Building Control.
Get a quote for the SW11 areaCommon questions
Electric shower installation SW11: frequently asked
Does an electric shower installation need Building Regs in SW11?
Yes. Electric shower installation is Part P notifiable work in the SW11 area (Battersea & Clapham Junction). A new or replacement bathroom circuit must be carried out by a registered competent person. Our electricians self-certify and notify Building Control — you receive a completion certificate automatically.
What kW electric shower do I need in SW11?
For most SW11 properties, a 9.5kW unit provides the best balance of flow and installation cost. It runs on a 6mm supply cable with a 40A MCB. If your mains pressure is high and you want maximum flow, a 10.8kW unit on a 10mm cable is the upgrade. We assess your existing consumer unit and cable routes before recommending a rating.
Do you install electric showers in the SW11 area?
Yes — we cover the SW11 (Battersea & Clapham Junction) postcode for electric shower installation and replacement. Same-day appointments are available. All installations include Part P notification, RCD protection, and an electrical installation certificate.
How long does electric shower installation take in SW11?
A like-for-like replacement in the SW11 area typically takes 2 to 3 hours. A new installation with a cable run from the consumer unit takes 4 to 6 hours. Most jobs complete in a single visit so the shower is working the same day.