Electrical services

Data cabling.

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Our services

What is data cabling and why does it matter?

In a digital-first world, your network infrastructure underpins everything your business does. Data cabling systems transfer vital electronic information between devices, servers, and systems, supporting everyday operations from communication to security. When installed correctly, they ensure fast, reliable, and compliant connectivity that keeps your business running without interruption.

At Complii, we understand that businesses need more than simple cable installation. You need dependable infrastructure that supports business continuity, meets compliance requirements, and scales with your growth. Our fully accredited engineers design, supply, and install robust data cabling systems built around your operational needs, ensuring your network performs safely, efficiently, and reliably.

We're an accredited contractor

Why choose Complii?

How we can help.

Protect your people, property, and business. Here’s why we’re the right choice for data cabling.

Reliable performance and reduced downtime

Well-designed cabling keeps your systems running smoothly, minimising failures that disrupt productivity or impact revenue.

Compliance with safety and building regulations

All installations meet relevant UK standards for fire safety, cable materials, and commercial property regulations, helping you maintain full compliance.

Scalability for future growth

We design structured cabling that supports additional users, equipment, or higher bandwidths without major disruption or rework.

Enhanced security and resilience

Secure, well-managed cabling supports your network’s integrity, reducing the risk of interference, data loss, or unauthorised access.

Improved organisation and maintenance

Our professional installation ensures clear labelling, containment, and documentation, simplifying maintenance and upgrades.

Long-term value and warranty protection

As approved installation partners, we use quality-assured materials backed by long-term warranties, giving you confidence and cost efficiency over time.

Your questions answered.

We install both copper and fibre optic cabling systems. Copper cabling, such as Cat5e, Cat6, and Cat6a, is ideal for most commercial applications, while fibre optics provide higher speeds and longer transmission distances.
Yes. We assess your current setup and design new cabling solutions that integrate seamlessly, improving performance without unnecessary disruption.
Absolutely. We deliver full structured cabling installations across campuses, industrial sites, and multi-site organisations, ensuring consistent performance and compliance throughout.
All data cabling installations comply with BS EN 50173, BS EN 50174, and other relevant UK and EU standards for safety, performance, and reliability.
Timelines depend on project scale and complexity. We’ll provide a clear programme before work begins, ensuring minimal downtime and full transparency.
Yes. Every installation is tested and certified, with detailed documentation supplied for compliance, maintenance, and warranty purposes.

News & insights

Insights / September 23, 2025

The benefits of thermographic imaging

Thermographic imaging is a powerful tool for identifying potential electrical faults before they become serious problems. By using specialist thermal cameras, engineers can detect heat patterns that indicate issues such as overloading, loose connections, or failing components.

For businesses, this proactive approach helps reduce risks, avoid costly downtime, and demonstrate compliance with electrical safety regulations.

News / September 23, 2025

PH Water and Air Technologies joins Complii

We are pleased to announce that PH Water and Air Technologies has joined Complii. This addition strengthens our water and air compliance services and further supports our mission to provide trusted, integrated compliance solutions across the built environment.

News / April 11, 2025

Sarah Dixon appointed CEO of Complii

Complii, the UK leader in integrated safety and regulatory compliance across electrical, fire, and water, has announced the appointment of Sarah Dixon as their new Chief Executive Officer.

Sarah joins Complii from Johnson Controls where she has been Managing Director of the fire and security businesses across the UK and Ireland.

See all news and insights

Compliance with confidence.

Get in touch for a tailored quotation that fits your site’s needs.