New circuits, consumer units and lighting, by our own electricians.
Whether it is an extra socket in a St Albans kitchen or the power and lighting for a new unit, SEG’s employed, NICEIC-registered electricians do the work, test it and certify it.
Who it’s for
- Homeowners adding circuits, lighting, extensions, garden power or a new consumer unit.
- Landlords and agents upgrading properties between tenancies.
- Businesses fitting out offices, shops, surgeries and industrial units.
What’s included
- Consumer unit replacement with RCD protection to the current Wiring Regulations
- New circuits for kitchens, extensions, outbuildings, EV charging and heat pumps
- LED lighting design and installation, including emergency and external lighting
- Small power, data containment and distribution for commercial fit-outs
- Part P notification handled for domestic work, with installation certificates issued
How it works
We look at the job, ask what you want to do with the space and quote clearly.
A start date, an engineer’s name and a realistic duration are agreed.
Work is carried out and tested circuit by circuit.
You receive the certificate, and where required Building Control notification is made for you.
Electrical installations: the detail
Expert Installation for Homes, Businesses & Tenanted Properties
Safe & Compliant Electrical Installations in St Albans and Hertfordshire
Electrical installations in Hertfordshire are crucial for ensuring the safety and functionality of your home or business. Whether you’re installing lighting, adding new sockets, or upgrading your entire electrical system, our team makes sure that every installation is carried out to the highest safety standards.
We understand the importance of complying with the latest regulations, and as an accredited contractor, SEGplc guarantees that all our installations meet or exceed current building and electrical safety standards.
Our Electrical Installation Services
At SEGplc, we offer a broad range of electrical installations in Hertfordshire for both residential and commercial properties. Some of the services we provide include:
- Interior and exterior lighting : We can design and install lighting solutions that enhance your space while ensuring energy efficiency and safety.
- Electrical sockets and switches : Whether you’re installing new power points or upgrading existing sockets, we ensure that your electrics are safely installed and functional.
- Bathroom fans : Proper ventilation is crucial for safety and comfort. We install high-quality extractor fans to ensure your bathroom remains dry and mould-free.
- Ground wire installation : Essential for safety, grounding ensures that your electrical system is properly earthed, preventing potential electric shocks.
- Security systems : We provide the installation of security systems, including CCTV and alarm systems, to enhance the protection of your property.
Electrical Installations at The Specialist Electrical Group Ltd
At SEGplc, we’ve been providing electrical installations in Hertfordshire for both domestic and commercial properties for over 20 years. We work on a variety of projects, from upgrading homes to installing complete electrical systems in large-scale developments. We’ve worked with multiple councils in Hertfordshire and surrounding areas, completing thousands of installations, including emergency lighting, containment, handsets, and door entry systems.
On the domestic front, we’ve handled everything from rewiring new homes to responding to emergency calls for electrical inspections and repairs. Our team of qualified engineers is equipped to handle any electrical installation, no matter how big or small, ensuring that all work is completed to the highest standards.
Why Choose SEGplc for Your Electrical Installations in Hertfordshire?
For over two decades, SEGplc has been a trusted provider of electrical installations in Hertfordshire. We are proud of our reputation for delivering high-quality, safe, and compliant installations. Our customers trust us because we prioritise their needs and always ensure the job is completed on time, within budget, and to the highest standards.
We are fully certified by industry bodies such as NICEIC, CHAS, and SafeContractor, ensuring that all of our electrical work meets the latest safety regulations. Our friendly, professional team is committed to providing the best customer service and ensuring that every installation is carried out to perfection.
Book Your Electrical Installation in Hertfordshire Today
If you’re looking for electrical installations in Hertfordshire, contact SEGplc today. We offer free consultations and competitive quotes for all types of electrical work. Our experienced engineers are ready to provide you with the best solution to meet your needs.
Call 01727 238 999 or enquire online to discuss your project or request a quote.
Where we provide this
SEG’s head office and van base is in Chiswell Green, St Albans. We provide this service for homes and businesses across Hertfordshire, Bedfordshire, Buckinghamshire and North and West London, with the closest and most frequent work around St Albans (see our electricians in St Albans page), Harpenden, Hemel Hempstead and Watford.
- USB-C sockets, downlights, a new fan and a safer bedroom circuit (St Albans, June 2026)
Distribution boards we have fitted
Three-phase boards, labelled circuit by circuit, with surge protection and the test schedule kept with the board.
Questions we’re asked
Do you do small jobs?
Yes. Small domestic jobs are a regular part of our week. Larger jobs are scheduled with the same engineers.
Will I get a certificate?
Yes. Every new circuit or consumer unit is tested and certified, and notifiable domestic work is registered under our competent person scheme.
Can you work around the school run or the working day?
We agree access with you in advance and, for commercial customers, can often work out of hours.
Need it done by a date?
Tell us the deadline. We’ll tell you honestly whether we can hit it — and we usually can.