Electrical Fit-Out
Get in touchAt Commercial Electrical Services, we provide complete electrical fit-out solutions for commercial offices, retail units, restaurants, schools, warehouses, and new-build premises.
Since an electrical fit-out establishes the infrastructure that powers lighting, data, power distribution, and safety systems, our work is tailored to meet the technical and regulatory demands of your business.
Whether you're moving into a new shell space or refurbishing an existing unit, our NICEIC-approved engineers deliver safe, scalable installations that are compliant with BS 7671 standards and designed for long-term performance.
Contact us today to request a free consultation and site assessment from our commercial electricians in location] today.
How Much Does an Electrical Fit-Out Cost?
The cost of an electrical fit-out ranges from £45 to £85 per square metre.
The cost depends on the scope of work, specification, and site access.
A small office fit out might cost between £3,000 and £10,000, while larger or higher-spec projects in retail, hospitality, or healthcare settings can exceed £50,000, especially where custom lighting, data cabling, or emergency systems are involved.
We provide a fixed, itemised quotation following a detailed site survey and review of architectural or design plans. All costs include materials, labour, testing, and certification.
What Does an Electrical Fit-Out Include?
A full commercial electrical fit-out includes the installation of all fixed wiring and systems necessary for the space to become operational.
This may cover mains distribution boards, socket outlets, lighting (including LED and emergency), fire alarms, access control systems, data cabling, and containment.
We also install mechanical power supplies (for HVAC or plant), structured cabling for networks, and integrate systems such as EV chargers or automated controls.
Since no two projects are alike, our team works from client specifications or architectural layouts to ensure the electrical infrastructure aligns with your operational needs and safety regulations.
What Are the Benefits of a Professionally Managed Electrical Fit Out?
A professional fit out ensures your building is powered efficiently, safely, and in line with legal requirements.
Key benefits include:
Full compliance with BS 7671 wiring regulations and Part P of the Building Regs
Integration with your layout, workflow, and energy-saving goals
Reduced risk of future failures, downtime, or retrofit costs
Enhanced safety through correctly installed fire alarms and emergency lighting
A clean, professional finish that aligns with your brand and functionality
A single point of responsibility for design, installation, testing, and certification
Do You Handle CAT A and CAT B Fit Outs?
We specialise in both CAT A and CAT B electrical fit-outs.
A CAT A fit-out includes the basic electrical infrastructure required for a landlord to lease the space—typically power distribution, lighting, fire alarm systems, and emergency lighting.
CAT B fit-outs are tenant-led and involve customisation of the space for specific usage. This includes the layout of lighting zones, data cabling, floor boxes, socket placement, access control, and audiovisual integration.
We work with developers, designers, and end-users to ensure the final fit out meets branding, technical, and comfort requirements.
Do You Provide Design and Consultation Services?
We provide electrical design and consultation for fit-outs , especially where no M&E consultant is appointed.
Since many clients require input on power layouts, cable routes, lighting levels, and energy efficiency, we can prepare electrical layouts, load calculations, and containment schematics.
This service helps avoid coordination issues with other trades and ensures full compliance with current building codes.
We also offer value engineering, where we suggest alternatives to reduce costs while maintaining quality and compliance.
Can You Coordinate With Other Contractors on Site?
We regularly collaborate with main contractors, project managers, interior designers, HVAC installers, and joiners on electrical fit-out projects.
Since fit-outs often involve tight schedules and multiple trades working simultaneously, we maintain open lines of communication and adjust our sequencing to avoid delays.
Our team is experienced in working on phased handovers, split-floor projects, and fast-track refurbishments. We attend site meetings and contribute to risk assessments, method statements, and health & safety planning.
Is All Work Certified and Compliant?
Every electrical installation for commercial fit-outs is tested and certified in accordance with BS 7671 and NICEIC regulations.
We issue Electrical Installation Certificates (EICs), Part P notifications if applicable, and relevant commissioning documents for fire alarms, emergency lighting, and network systems.
For larger projects, we also supply as-built drawings, cable test results, and O&M (operation and maintenance) manuals.
At Commercial Electrical Services, we ensure you meet legal requirements and maintain traceable records for insurance or compliance inspections.
Can You Upgrade Existing Electrical Systems During a Fit-Out?
We can upgrade or replace outdated electrical systems during a fit-out refurbishment.
Since many older premises contain legacy wiring, outdated fuse boards, or inefficient lighting, a fit-out offers the ideal opportunity to modernise these systems.
We conduct surveys of existing infrastructure and advise on partial or full upgrades, often replacing halogen lighting with LED, upgrading to RCBO or AFDD protection, or increasing socket capacity to suit modern tech-heavy environments.
All upgrades are carried out with minimal disruption to other trades.
Can You Work Alongside Other Trades During the Fit-Out?
We routinely coordinate with other contractors and trades during electrical fit-outs, including joiners, HVAC engineers, interior designers, ceiling installers, and IT vendors.
Since most commercial fit outs involve multiple teams working simultaneously on tight schedules, collaboration is essential to avoid delays, rework, or clashes in service routes.
We work from a central programme of works, attend site meetings, and sequence our installation to ensure lighting, power, data, and fire systems are installed without disrupting other trades.
This coordinated approach allows the entire project to progress smoothly, with efficient handovers between disciplines.
What Electrical Regulations Must a Commercial Fit-Out Comply With?
All electrical fit out projects must comply with the UK Wiring Regulations (BS 7671) and relevant Building Regulations, particularly Part P (Electrical Safety) and Part B (Fire Safety).
Since commercial properties also require additional compliance under the Electricity at Work Regulations 1989, we ensure installations are safe for ongoing use and maintenance.
Emergency lighting must meet BS 5266, while fire detection systems must follow BS 5839.
We install all electrical systems to current standards and issue NICEIC certification, ensuring you meet the requirements of insurers, landlords, and local authorities.
We protect you from legal liability and avoids costly rework later on.
Do You Offer Energy-Efficient Electrical Solutions?
We incorporate energy-efficient systems into our electrical fit outs, including LED lighting, motion sensor controls, daylight dimming, and smart building technology.
Since businesses are increasingly focused on reducing operational energy use and meeting sustainability goals, we design systems that use less power without sacrificing functionality.
Lighting systems can be zoned with PIR occupancy sensors, time-controlled switching, or integrated BMS (building management system) controls.
We also advise on low-loss cable selections and recommend energy-efficient distribution solutions, such as voltage optimisation where appropriate.
These features reduce electricity bills and can contribute to BREEAM or WELL certification targets.
Can You Install Emergency Lighting and Fire Alarm Systems?
We supply and install emergency lighting and fire alarm systems as part of your fit out, ensuring compliance with UK fire safety legislation.
Emergency lighting is positioned to illuminate escape routes and critical exits in the event of power failure and is tested to meet BS 5266 standards.
Fire alarms are designed and installed in accordance with BS 5839, with system types specified according to the building size, layout, and use.
We also provide commissioning certificates and maintenance guidance post-installation.
These systems are critical not only for occupant safety but also to meet the requirements of fire risk assessments and workplace regulations.
Can You Provide Ongoing Maintenance After the Fit Out?
Once your electrical fit-out is complete, we offer planned maintenance services to keep your systems compliant and operational.
Since electrical systems degrade over time due to load demands, environmental conditions, or mechanical wear, routine inspections are essential for long-term safety and performance.
We offer custom maintenance packages that include EICR testing, emergency lighting checks, PAT testing, and distribution board servicing.
This proactive approach reduces the risk of faults and ensures your installation remains legally compliant year after year.
Why Choose Us for Your Electrical Fit Out?
You should choose us because we bring experience, technical accuracy, and project reliability to every commercial electrical fit out.
We’re a NICEIC-approved contractor with a strong track record of delivering on time and to specification across a range of sectors.
Our team takes responsibility for design, installation, testing, and certification, ensuring that your space is not only functional but future-ready and fully compliant.
From shell-and-core spaces to high-end tenant fit-outs, we deliver solutions that are scalable, safe, and tailored to your business operations.
Book a Commercial Electrical Fit-Out
Whether you’re preparing a new commercial space, upgrading your current facility, or managing a full property refurbishment, we provide expert electrical fit-out services tailored to your sector, timeline, and budget.
Contact Commercial Electrical Services today to arrange a site visit or request a detailed quote for your commercial or office electrical fit-out.
Other Services We Offer
At Commercial Electrical Services, we offer a wide range of services; some of these include:
Office Data Cabling
Emergency Electrical Service