Switch, Socket and Transformer Installation in London
Keep your rooms nice and bright with reliable electrical solutions in London

Reliable Installation
Keep your rooms nice and bright with reliable switches installation in London. We ensure everything is connected perfectly for your comfort.
System Protection
A single faulty power strip can cause serious damage to your entire electrical system. Don’t take any chances—trust the experts.
Quick Booking
Use our online chat, easy booking form, or the GoFantastic app. Let us know what you need and we’ll be there. 07353 373753
Hourly-Based Service
Our services are hourly-based, so your final price depends on the amount of work and time the electrician spends at your property.
Time Estimates
Each task varies in complexity. We will provide you with an exact time estimate once the pros arrive on site to inspect the job.
Safety Compliance
Our experts replace or install buttons, switches, and transformers by strictly following all UK safety rules and regulations.
Getting switches, sockets and transformers wired safely
Adding a socket, fitting a new switch, or installing a low-voltage transformer for lighting all sound simple until the wiring is wrong, and a faulty connection here can affect an entire circuit. Our electricians size and connect each component correctly, test the circuit afterwards, and make sure everything complies with current UK wiring regulations.
We install and replace single and double sockets, dimmer and standard switches, and transformers for low-voltage lighting, with clean, tidy finishing around existing decor. Appointments are available across London within the M25, priced by the hour.
| APPOINTMENTS | MONDAY – FRIDAY | SATURDAY | SUNDAY | |
|---|---|---|---|---|
| 8 AM – 6 PM | 6 PM – 10 PM | 8 AM – 6 PM | 8 AM – 6 PM | |
| First Hour | £94.80Business: £79 + VAT | £102Business: £85 + VAT | £102Business: £85 + VAT | £111.60Business: £93 + VAT |
| Subsequent Half Hours | £54Business: £45 + VAT | £56.40Business: £47 + VAT | £56.40Business: £47 + VAT | £56.40Business: £47 + VAT |
Prices include VAT at 20%. Offices and companies: the business rate is shown + VAT.
Booked 3 hours, but the job took 2? No worries, you only pay for the actual time the service took.
Minimum appointment time: 1 hour. After the first hour, we will charge on a half-hour basis.
Upon your request, the technician can source additional materials from the local store. We charge £57.60 per hour inc VAT (business: £48 + VAT) to supply them and the costs for the shopping time and materials will be added separately on top of the price.
Extra If we need to go and buy materials, travel and shopping time is charged at £57.60 per hour inc VAT (business: £48 + VAT). The materials themselves are added at cost.
T&Cs and Minimum Charges apply. When we calculate the price, we also take into consideration the area’s dimensions and the time of the appointment. All prices and deals are valid for areas within M25. Deals cannot be combined with any other deals and promotions. Prices are subject to availability. Congestion charges are excluded (when applicable).
Frequently Asked Questions
What are the advantages of having a transformer?
Your home system works at 240V, but some devices like smart lights need only 12V. A transformer lowers the voltage, keeping your home well-lit and safe without any worries.
Why should I opt for a licensed electrician?
DIY electrical projects can be dangerous. A qualified specialist keeps your family safe and maintains your system in top shape, saving you money on expensive future repairs.
How much does the installation cost?
Services are hourly-based, so you only pay for the time worked. A simple switch installation will cost less than a complex transformer setup. Contact us for detailed calculations.
Are your services insured?
Yes! Every job, from light switches to telephone sockets, is covered by a reliable insurance plan. Our pros work cleanly and won’t disrupt your daily routine.
Need help today?
Urgent repairs in London
Call-outs seven days a week at the published hourly rate. These pages explain what to do first and what the visit costs.
Why Plumbery
Qualified, insured and upfront about price
Every engineer we send is registered or qualified for the trade they work in, and you can check the details before anyone starts.
Fully insuredEvery job is covered by our insurance.
Rates published in advanceOur hourly rates are on the pricing page. Nothing starts until you agree the rate.
Paperwork includedGas safety certificates and electrical records are provided on completion.
Registered companyPlumbery Ltd, company no. 11677583, registered in England and Wales.
Related services
More electrical services in London
Need something else sorted? These are the other electrical jobs our London engineers cover.
All electrical services
General electrical installations and rewiring
Fuse boxes replacement
Electrical faults finding
Dimmer switches and modules replacement
Doorbell installation and repair
Lighting fixture installation
Independent home electrical safety advice: Electrical Safety First.
