Electric Shower
Installation in South Wales
NAPIT approved electricians providing safe, professional electric shower installations and replacements across Cardiff, Newport, Swansea and all of South Wales. Dedicated circuits, correct cable sizing, and full certification included.
Electric Shower Installation Services in South Wales
Electric shower installation requires specialist electrical knowledge to ensure safety and compliance. An incorrectly wired shower can be extremely dangerous, which is why it’s essential to use a qualified, registered electrician for all shower electrical work.
At Megalec Electrical Solutions, our NAPIT approved electricians install and replace electric showers of all types and power ratings. Every installation includes a dedicated circuit from the consumer unit, correctly rated cable, an appropriate isolator switch, and IP-rated connections – all compliant with the latest 18th Edition BS 7671 wiring regulations and Part P Building Regulations.
Whether you’re fitting a brand-new electric shower, upgrading to a higher kilowatt model, or replacing an old unit, we ensure the electrical supply is safe, properly rated, and fully certified. We serve homeowners across Cardiff, Newport, Swansea, Bridgend, Caerphilly, Pontypridd, Barry and the wider South Wales area.
Why Professional Shower Installation Matters
Safety, compliance, and peace of mind with every installation
Electrical Safety First
Electric showers combine water and electricity – two things that must be handled with expert care. We ensure every connection is IP-rated and safely installed.
Dedicated Circuit Required
Electric showers need their own dedicated circuit from the consumer unit with correctly rated cable and MCB protection to handle the high current draw safely.
Part P Certified
All shower installations are notifiable under Part P Building Regulations. As NAPIT approved electricians, we self-certify all work and provide full documentation.
All Power Ratings
From 7.5kW to 10.8kW and above, we install showers of all power ratings with the correct cable size and circuit protection for each unit.
Upgrades & Replacements
Upgrading to a more powerful shower? We check and upgrade the cable and circuit protection to safely handle the increased load.
Transparent Pricing
Clear, upfront quotes with no hidden costs. We explain exactly what’s needed before any work begins.
Our Shower Installation Process
Safe, efficient, and fully certified from start to finish
Assessment
We assess your existing electrical supply, consumer unit capacity, and cable route to determine the best installation approach for your shower.
Circuit Installation
A dedicated circuit is run from the consumer unit with correctly rated cable, MCB/RCBO protection, and a pull-cord or rotary isolator switch.
Shower Connection
The shower unit is connected using IP-rated fittings in the bathroom zone, ensuring all connections meet bathroom electrical safety regulations.
Test & Certify
Full electrical testing is carried out, and you receive an Electrical Installation Certificate registered with building control.
Assessment
We assess your existing electrical supply, consumer unit capacity, and cable route to determine the best installation approach for your shower.
Circuit Installation
A dedicated circuit is run from the consumer unit with correctly rated cable, MCB/RCBO protection, and a pull-cord or rotary isolator switch.
Shower Connection
The shower unit is connected using IP-rated fittings in the bathroom zone, ensuring all connections meet bathroom electrical safety regulations.
Test & Certify
Full electrical testing is carried out, and you receive an Electrical Installation Certificate registered with building control.
Why Choose Megalec for Shower Installation?
Electric shower work is one of the most safety-critical electrical jobs in any home. Our NAPIT approved electricians have extensive experience installing and replacing electric showers across South Wales, ensuring every installation is safe, compliant, and built to last.
Service Areas Across South Wales
Available throughout Cardiff, Newport, Swansea, Bridgend & surrounding areas
Frequently Asked Questions
A straightforward electric shower installation typically costs between £250–£500 including the dedicated circuit. If a new circuit needs to be run from the consumer unit, costs may be higher depending on cable route length. We provide free quotes tailored to your specific situation.
No. Electric shower installation is notifiable work under Part P of the Building Regulations and must be carried out by a qualified, registered electrician. The combination of water and high-current electricity makes this potentially lethal if done incorrectly.
Cable size depends on the shower’s power rating and the length of the cable run. A 7.5kW shower typically requires 6mm² cable, while a 9.5kW–10.8kW shower usually needs 10mm² cable. Our electricians calculate the exact requirement for your installation.
A 45A isolator switch is required for electric showers. This can be a ceiling-mounted pull-cord switch inside the bathroom or a rotary switch outside the bathroom. We advise on the best option for your setup.
Yes, but the existing cable and circuit protection must be checked and potentially upgraded to handle the increased current. Our electricians assess your current setup and upgrade everything needed for safe operation.
A standard installation with an existing circuit typically takes 2–3 hours. If a new dedicated circuit needs to be run from the consumer unit, it may take 4–6 hours depending on the cable route and property layout.
Need an Electric Shower Installed in South Wales?
Contact Megalec today for a free, no-obligation quote. Our NAPIT approved electricians ensure your shower is safely installed and fully certified.