Prolec Electrical and Compliance Solutions
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Commercial Electrical Installation

As an experienced commercial electrical contractor, Prolec supports main contractors, facilities teams and commercial organisations with installations, alterations and upgrades across London and the South East.

We combine technical expertise with careful planning, responsive support and clear communication, particularly where work needs to be delivered around live operations, restricted access or complex site requirements.

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What is electrical installation?

Commercial electrical installation covers the electrical systems and infrastructure needed to power and support a commercial building. This can include new installations, alterations to existing systems and upgrades to meet changing operational requirements.

Whether you’re refurbishing a workspace, expanding an existing installation or upgrading ageing infrastructure, the work needs to be carefully planned, installed and tested to meet relevant electrical safety standards.

What our commercial electrical installation includes

We provide a range of commercial electrical installation services, including:

  • Power distribution and electrical wiring: Installation, alteration and upgrading of electrical circuits and distribution systems.
  • Lighting installations: New lighting systems and upgrades to existing commercial lighting.
  • Power and data cabling: Electrical and data cabling installations to support workplace and operational requirements.
  • Electrical alterations and upgrades: Adapting existing installations to accommodate new equipment, layouts or building requirements.
  • Emergency lighting and associated systems: Installation and upgrading of emergency lighting and other agreed electrical systems.
  • Testing and certification: Appropriate inspection, testing and documentation following installation work.

We also undertake commercial electrical fit outs, LED lighting upgrades and EV charging installations.

Why Prolec

Experienced commercial engineers

Our qualified engineers bring technical expertise and experience across a wide range of commercial electrical installations. Prolec is an NICEIC Approved Contractor, and we take pride in delivering work to the required standards.

Planned around your operations

We take time to understand the site, the programme and the practical requirements before work begins. From coordinating with other trades to working around occupied areas and restricted access, we plan the work to minimise unnecessary disruption.

Responsive and easy to work with

We understand that programmes change and unexpected requirements arise. Our team responds quickly, communicates clearly and works closely with clients and main contractors to keep projects moving.

Quality through to handover

Getting the job done properly means more than a good installation. We pay close attention to testing, certification and the accuracy of the documentation provided, giving clients clear records of the work completed.

FAQs

Straight answers to the most common questions about commercial electrical installation.

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What types of commercial electrical installation work does Prolec undertake?

We carry out a range of commercial electrical installations, including power distribution, electrical wiring, lighting, power and data cabling, alterations and upgrades to existing systems.

We also provide specialist services such as commercial electrical fit outs, LED lighting upgrades and EV charging installations.

Can you carry out electrical installations in occupied buildings?

Yes. Our engineers are experienced in working in live and occupied commercial environments. We plan access, isolations and working arrangements around the building’s operational requirements, coordinating with clients and other contractors as needed.

Do you provide testing and certification following installation?

Yes. We carry out appropriate inspection and testing and provide the relevant electrical certification and documentation for the work completed.

What areas do you cover?

Based in Coulsdon, South London, Prolec provides commercial electrical installation services across Greater London and the South East, including Croydon, Crawley, Guildford, Redhill, Reigate and surrounding areas.

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Our accreditations

We're proud to hold several important certifications that demonstrate our commitment to quality and safety. Every accreditation is independently verified and kept current.