Electrical services

Electrical installation services.

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Our services

What are electrical installation services?

Electrical installation services cover the design, supply, and integration of systems that power your operations safely and efficiently. From lighting and data cabling to fire and security systems, every installation must meet strict UK standards to ensure reliability, performance, and compliance.

At Complii, we deliver comprehensive electrical installation services tailored to the needs of commercial, industrial, and institutional clients across the Midlands. Our accredited engineers design and install systems that enhance safety, improve energy efficiency, and future-proof your facilities for sustainable growth.

Whether you’re upgrading existing infrastructure or developing a new site, our focus is on delivering long-term value, not short-term fixes.

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 electrical installation services.

Complete compliance and safety assurance

All installations are carried out by NICEIC-approved engineers and tested to BS 7671 standards, ensuring your electrical systems are safe, reliable, and fully compliant.

Energy-efficient performance

We design systems that optimise load distribution and reduce wasted energy, helping to cut operational costs and support sustainability goals.

Reduced downtime and disruption

Our installations are planned and delivered with precision, keeping projects on schedule and minimising disruption to daily operations.

Seamless integration

From power distribution and lighting to data and control cabling, we ensure every system integrates smoothly for a cohesive and efficient electrical network.

Scalable infrastructure

Our installations are built for the future, with capacity and flexibility to accommodate new technology and business growth.

Trusted, accredited expertise

With a track record across multiple sectors and compliance with all relevant regulations, you can depend on Complii for expert guidance and lasting results.

Your questions answered.

We design and install a wide range of systems, including power distribution, lighting, fire alarms, security systems, data cabling, and control systems for commercial and industrial sites.
Yes. Every installation is tested, verified, and certified in accordance with BS 7671 and all applicable building regulations, giving you full compliance documentation.
Absolutely. We provide full design and consultation services, ensuring your installation meets your operational requirements and future capacity needs.
Yes. Our engineers are experienced in working safely within active environments, planning works carefully to avoid disruption.
We work across commercial, industrial, educational, healthcare, and public sector environments, tailoring solutions to each site’s unique demands.
Yes. We provide ongoing inspection, testing, and maintenance programmes to keep your electrical systems safe, compliant, and performing efficiently.

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.

Compliance with confidence.

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