Popular Sectors
Organisations We've Worked With
Testimonials
Happily recommend CEL-FI!
— Simon Reynolds, Head of Voice at University Hospitals of Burton and Derby"Installing a CEL-FI solution has had two folds benefit, improving local coverage for staff, and reducing pressure on the local networks as patients and visitors could continue to ..." Read more
Zero signal to full coverage!
— Stephen Day, IT Manager, Pure Offices"We were recommended to use one of the CEL-FI solutions around the building. This improved the signal from zero to full coverage, resulting in positive feedback from our customers..." Read more
It's been a life saver for us!
— Pete Evans, Infrastructure Technician, Hywel Dda University Health Board"CEL-FI QUATRA mobile signal booster solution resolved the EE mobile coverage issues in the existing and new wing of our hospital. Since the system was fitted, the mobile signal..." Read more
Installation done in just 3 weeks!
— Jayne Southall, CEO, Lincolnshire Agricultural Society"We only had a limited time to solve the mobile signal problem, so we not only needed a system that worked, but we needed it fast. Colin and his team did not let us down. They implemented..." Read more
The solution working really well!
— Jordan Smith, Professional European Golfer"The CEL-FI solution is working really well. We are able to hotspot phones and watch Netflix on the TV. Voice calls are all good as well. Thank you!"
The team have been amazing!
"From start to finish the team have been extremely helpful in providing sound advice and guidance. Especially Joe Rogers who kept in regular contact to ensure ..." Read more
Supports Voice & Data
Across 4G & 5G
Scalable Solutions
From small offices to large multi-zone buildings
Fast Installs Available
Subject to site survey
Advanced Design Systems
For more complex sites
Ofcom Compliant & Network Safe
Monitoring & Support Available
The Technology Behind Our Commercial Solutions
We use Ofcom-compliant CEL-FI systems as part of professionally designed mobile signal solutions for offices, warehouses, healthcare sites and public buildings.
From smaller premises to larger and more complex buildings, we recommend the right setup based on your site, the networks required and the level of coverage needed. That can mean a single-network solution for a specific use case, or a more advanced multi-network system for broader commercial coverage.
We support the whole process, from survey and design to installation, testing and aftercare. The result is a legal, network-safe and scalable solution designed around your building, rather than an off-the-shelf product.
Reliable Indoor Mobile Coverage for Commercial Buildings
Poor indoor signal affects calls, data, staff productivity and day-to-day operations. Our in-building mobile signal solutions are designed to improve reliable 4G and 5G coverage inside offices, warehouses, healthcare environments and public buildings.
Using Ofcom-compliant CEL-FI technology, we design systems around your site, the networks required and the level of coverage needed. That means a solution can be tailored for anything from a smaller building with a specific problem area to a larger or more complex site needing broader coverage.
The result is stronger indoor voice and data performance, fewer dropped calls and a more dependable mobile experience for staff, visitors and connected devices.
Recent Case Studies
Real-world examples of how we solve indoor mobile signal problems across different sectors.
