In Building Cellular Networks Icon

In-Building Mobile Connectivity Solutions.

Watch Video to Learn More   View Our Work

Solve poor in-building mobile coverage problems with Simpli-Fi's approved intelligent mobile signal boosting solutions.

At Simpli-Fi, we deliver bespoke indoor mobile coverage solutions that eliminate signal black spots in even the most challenging environments. Whether you’re managing an office, warehouse, retail destination, or multi-dwelling property, we ensure strong, reliable mobile connectivity—across all major UK networks. 

Contact us to book your free consultation and site survey. 

We provide an In-building mobile signal-boosting proof of concept (POC) so you can see the difference it can make to your business.

Download brochure

What challenges do we solve?

Lost Opportunities

Staff Welfare

Faster Payments

Smart Devices (IOT)

Staff/Customer Retention

Seamless System Interaction

Inconsistent Communications

Public Safety

Enhanced Customer Experience

Wiredscore Ratings for Landlords

In-Building Mobile

Boost Signal. Power Performance.

Modern workplaces rely on mobile coverage for day-to-day communications, operational efficiency, and customer experience. But materials like concrete, glass, and steel often disrupt mobile signals—causing dropped calls, slow data, and poor user experience. 

Our engineered systems provide complete in-building mobile coverage using: 

  • Indoor LTE signal boosters for stable 4G coverage 
  • 5G signal boosters to prepare your site for future needs 
  • Commercial cellular signal boosters for small offices to large venues 
  • Office signal boosters for open-plan spaces or listed buildings 
  • Industrial signal boosters for warehouses and distribution centres 
  • Metal building boosters to counter heavy material interference 
  • Private 5G networks for secure, site-specific mobile performance 

Learn more about our Private 5G Solutions.

Key Benefits

All systems are designed with full Ofcom compliance, easy scaling across multi-site properties, support for smart building technology and integration with Private 5G networks.

Simpli-Fi provides fully managed infrastructure, not just one-off boosters. Our solutions grow with your business and prepare you for the next wave of mobile innovation.

Eliminate mobile dead zones

Private 5G

Boost indoor 4G and 5G performance

Improve voice call clarity and reduce dropouts

Support staff mobility and BYOD policies

Enable smart building services and IoT applications

Enhance operational efficiency and customer satisfaction

Our systems are fully compliant with Ofcom requirements. It is rapidly installed, set up and configured by certified installers.

How Our Signal Boosting Solutions Work.

We start with a free site survey to assess your building’s layout and coverage. Our team then designs a tailored solution using: 

  • Distributed Antenna Systems (DAS) 
  • High-gain external antennas 
  • Internal repeaters and amplifiers 
  • Cloud-managed control systems

If you frequently experience dropped calls, slow uploads, or dead zones, it’s time to upgrade your mobile infrastructure. We support sectors including:

  • Property Developments 
  • Facilities Management
  • Warehouse & Loghistics
  • Corporate Real Estate
  • Housing & Multi-Dwelling Units

All installations are Ofcom-compliant, carrier-approved, and handled by certified engineers. We work with minimal disruption to live environments, including retrofits and new builds. 

Book your free survey

End To End Support From Simpli-Fi

Survey

Our expert project managers and telecommunication engineers will consult with your team, survey your premises and recommend the best solution for your business.

Design

Our specialists will then work with surveyors' recommendations to design a mobile phone signal booster solution to optimise connectivity, whether you are centrally or remotely located.

Installation

From installation to on-going support, our team of engineers offers UK-wide coverage, ensuring we will reach you whatever the site location and delivering expert, reliable service to keep you connected.

Support

Once installed, we provide bespoke, ongoing managed services and digital performance monitoring and apply automatic updates to support continual network changes in your area.

Request a design Survey

Find out how we can help you improve your business communication through mobile signal boosting.

Our Partners and Vendors

We have been working with trusted vendors for decades. These valued partnerships allow us to exchange views and support innovation, ensuring our clients always receive the right solution at the best price.

Request a Design Survey

We appreciate your interest in Simpli-Fi’s services. We require a few details from you in the first instance to steer you to the right team member. Alternatively, book a call to discuss your requirements.
Drag & Drop Files, Choose Files to Upload