Temporary lighting and site power, installed and inspected.
Every job starts with power. SEG sets up temporary supplies, distribution and lighting for construction sites, installed to the relevant standards, inspected regularly and removed when you are done.

Who it’s for
- Main contractors needing a site electrician to get a job started and keep it running.
- Developers with phased builds and changing supply needs.
- Event and venue organisers needing temporary distribution.
What’s included
- Temporary supply connections and metering liaison
- Distribution boards, site cabins and welfare power
- Task and perimeter lighting, including emergency lighting on site
- Periodic inspection and testing of temporary installations
- Removal or conversion to permanent supplies

How it works
We agree load, layout and programme.
Distribution and lighting are installed and tested.
Regular inspection throughout the job.
Removal, or conversion to the permanent supply.
Site set-up & temporary power: the detail
Temporary Power, Lighting & Security for Construction Sites
What Is Temporary Lighting for Construction Sites?
Temporary lighting for construction sites in St Albans and Hertfordshire provides the essential lighting needed to ensure safety and functionality at construction sites. It’s critical for illuminating work areas, ensuring that workers can complete tasks safely even during evening hours or in poorly lit areas. Temporary lighting systems are installed to comply with health and safety regulations, helping to create a safe working environment for all on-site personnel.
Temporary lighting can include floodlights, task lighting, and emergency lights, all of which ensure visibility and safety on-site. SEGplc offers complete temporary lighting solutions, tailored to meet the specific needs of your construction project.
Why Temporary Lighting for Construction Sites is Important
When it comes to temporary lighting for construction sites in Hertfordshire, it’s essential to ensure that your site is properly lit for both safety and productivity. Construction work often takes place during early mornings, evenings, or even at night, and proper lighting is crucial to prevent accidents and allow work to continue smoothly.
In addition to providing illumination for work areas, temporary lighting also plays a key role in security. Well-lit areas deter criminal activity, and during the construction process, it’s important to ensure that workers and materials are protected.
Electrics for a site set-up
Getting the electrics set up correctly at a site setup is critical; having power on-site allows people to work on computers and ensures that all containers used for facilities on site have lighting. Since a site will require essential parts to complete work on-site, CCTV will typically be installed during the site set-up to look over the materials. A site that will be set up for an extended period of time will necessitate the use of electricity.
Temporary Lighting Installation at The Specialist Electrical Group Ltd
At SEGplc, we specialise in temporary lighting for construction sites in Hertfordshire, providing complete electrical setups for all types of construction projects. Whether you’re setting up a temporary office or welfare unit, or you need general site lighting, we have the experience and equipment to deliver a reliable solution.
We work closely with contractors to ensure that lighting systems are installed efficiently and meet all regulatory standards. Our engineers handle everything from the initial installation of lights to ensuring that all systems are fully functional, compliant, and ready for use.
Benefits of Temporary Lighting for Construction Sites
There are many advantages to using temporary lighting for construction sites in Hertfordshire, including:
- Enhanced Safety : Proper lighting reduces the risk of accidents by ensuring that all work areas are well lit, allowing workers to perform their tasks safely.
- Increased Productivity : Adequate lighting allows work to continue in the early morning, late evening, or at night, improving overall productivity and keeping projects on schedule.
- Security : Well-lit construction sites are less likely to experience theft or vandalism, providing greater security for materials and equipment.
- Regulatory Compliance : Temporary lighting ensures compliance with health and safety regulations, helping to avoid fines or penalties related to inadequate site lighting.
Why Choose SEGplc for Your Temporary Lighting for Construction Sites in Hertfordshire?
For over 20 years, SEGplc has been providing high-quality electrical services, including temporary lighting for construction sites in Hertfordshire. Our team of qualified engineers is experienced in providing temporary power, lighting, and security solutions for a wide range of construction projects.
We are fully accredited by NICEIC, CHAS, and other leading industry bodies, guaranteeing that all our installations meet the highest safety standards. As a local business, we are committed to providing fast, reliable, and tailored solutions to meet the unique needs of every construction site.
Call 0345 3 822 833 or enquire online to get a quote and arrange your site set-up.
Book Your Temporary Lighting for Construction Sites in Hertfordshire Today
Ensure your construction site is well-lit and compliant with temporary lighting for construction sites in Hertfordshire from SEGplc. Contact us today for a free, no-obligation quote and let our expert team design a lighting solution that meets your needs.
Call 0345 3 822 833 or enquire online to get a quote and arrange your site set-up.
Temporary lighting and site power
A site needs light before it needs anything else: safe routes in, lit work areas, a lit perimeter and escape routes that stay lit when the power fails. We install and inspect temporary lighting and distribution for construction sites, refurbishments and events in St Albans and across Hertfordshire.
- Task and area lighting where the work is, with fittings suited to a site environment.
- Perimeter and access lighting for security and safe entry and exit.
- Escape lighting that keeps working if the temporary supply drops out.
- Distribution and welfare power for cabins, tools and equipment.
Temporary installations on construction sites have their own rules, in BS 7671 Section 704 and BS 7375. Reduced-voltage 110V supplies are standard for portable tools, and RCD protection is used on the rest. The installation is tested before use and inspected regularly while the work goes on. Tell us the site address, start date, load and layout and we will say what is possible. See also supply upgrades and emergency lighting.
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, Harpenden, Hemel Hempstead and Watford.
Questions we’re asked
Do you provide a certificate for temporary installations?
Yes. We test and certify the installation and carry out periodic inspection while it is in use.
Can you arrange the supply connection?
We coordinate the application with the network operator, and the lead time depends on them.
Do you cover short events?
Yes, subject to scale. Call us with the date, location and load and we will say what is possible.
Can you install temporary lighting for a building site in St Albans or Hertfordshire?
Yes. We install temporary lighting and distribution for construction sites, refurbishments and events, then test and inspect it while it is in use. Call with the address, start date and what you need lit.
What voltage is used for temporary site power?
Reduced-voltage 110V is standard for portable tools on UK construction sites. Fixed items such as welfare cabins are normally supplied at 230V with RCD protection. We design the split to suit your site.
How often is a temporary installation inspected?
Regularly while it is in use. Periodic inspection of site installations is commonly carried out at around three-monthly intervals, though the interval depends on the site and should be set at design stage.
Need it done by a date?
Tell us the deadline. We’ll tell you honestly whether we can hit it — and we usually can.

