Clear instructions
Connect communication to your procedures
Official guidance includes communication alongside evacuation, invacuation and lockdown. Build the coverage review around the places where staff carry out those procedures.
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Mobile coverage for Martyn’s Law & venue communication.
Get clear information to the people who need it.
Bring staff rooms, public areas and coordination points into your communication plan. Help teams receive information, acknowledge instructions and keep a shared picture of an unfolding situation.
Seneca designs cellular coverage around your people, premises and working devices, from suitable repeaters to distributed antenna systems (DAS).
Why better coverage matters
Make the connection count.
Prepared teams
Make the plan work across the premises
Guidance focuses on appropriate procedures and people being able to implement them. Use practical exercises to find where information gets delayed or fails to reach a colleague.
Defined responsibility
Invest against a real requirement
Scope and duties depend on the premises and statutory criteria. Establish what applies before selecting communications improvements and documenting the work.
Around your operation
Get clear information to the people who need it.
Preparedness depends on people knowing what to do and being able to communicate across the premises. A supervisor in a basement, a receptionist at the entrance and a manager in the office need practical ways to pass information through the channels chosen for the venue.
Design for the places that matter
We assess mobile coverage alongside the venue’s public-protection procedures, staff radios, public-address systems and other communication routes. The starting point is the agreed plan: who communicates, from where, using which devices and with what fallback.
The proposal identifies the networks, services and areas included, with a practical acceptance check built around the devices your people actually use.
In everyday use
Put the connection to work.
Get the duty manager’s instruction to every agreed post
During a venue exercise, the duty manager sends an instruction through the approved staff communication application. Colleagues at reception, a lower-ground service area and an upper-floor event room receive the message on their managed phones and acknowledge it. The manager can see which posts have responded and follow up through the agreed alternative channel.
The team records the gaps identified during the exercise and adjusts the communication plan. Indoor cellular coverage supports the mobile element, while radios, public announcements and face-to-face responsibilities remain part of the venue’s procedures. The useful outcome is a plan that reflects how people work across the building, with clear ownership of the actions that follow.
The opportunity: clearer acknowledgements and fewer untested assumptions about who can receive instructions.
Bring a useful report into the coordination room
A member of staff notices an unattended item during routine opening checks and follows the venue’s established reporting procedure. Through an approved application, they pass the location and relevant observations to the duty manager from the area where they are standing. Coverage helps the report reach the people responsible without the member of staff searching for reception.
The manager follows the site’s response procedure, records decisions and uses the designated channels to coordinate colleagues. Information remains controlled and relevant to each role. The mobile connection supports that exchange; decisions about evacuation, lockdown or contact with emergency services remain with the trained people and procedures responsible for them.
The opportunity: more complete initial reports and a clearer record of decisions and follow-up.
Close the communication gaps revealed by a venue exercise
A venue runs an exercise involving staff at an upper-floor event room, a lower-ground service area and the reception desk. Each person uses the communication channels specified in the venue’s procedures to receive instructions and report their position. An observer records where mobile calls fail or messages arrive late, linking each issue to a location and supported operator.
The coverage work targets those locations, and the team repeats the exercise with the same devices and roles. Managers can see whether the mobile part of the communication plan now works in the places staff occupy. The record captures the result and any remaining action, giving the next briefing a practical basis and helping staff understand the agreed alternative channels when they need them.
The opportunity: fewer hidden communication gaps and clearer evidence that staff can use the agreed channels.
The right design for the job
Start with the service you need.
Signal, distribution and demand
A cellular repeater receives an available mobile service and retransmits it into an agreed area. A DAS distributes a suitable cellular source through antennas placed around a larger estate. These approaches can work together; the source and operator arrangements determine the available services and capacity.
We assess mobile coverage alongside the venue’s public-protection procedures, staff radios, public-address systems and other communication routes. The starting point is the agreed plan: who communicates, from where, using which devices and with what fallback.
Coverage within your preparedness plan
Martyn’s Law does not impose a blanket DAS or repeater requirement, and an installation is not proof of compliance. As of 17 September 2026, the regulator expects commencement in spring 2027, with the exact date to be confirmed. Applicability and duties must be checked against current official guidance. Commercial mobile coverage is also separate from Airwave and ESN requirements.
Planning & costs
We help turn the opportunity into a working solution.
We assess reception, the people using the service and the areas where calls or mobile tasks break down. We recommend the signal source and distribution system and explain the installation and ongoing support costs.
We handle the technical assessment and help connect the investment to useful results. The first conversation starts with what you want to achieve.
One area or the whole estate.
Start with a focused deployment and expand, or move ahead with a full programme. We shape delivery around your priorities and readiness, and coordinate installation with your operation.
Talk to our teamStraight answers
Planning mobile coverage for Martyn’s Law & venue communication.
Will people keep their existing phones and SIMs?
The aim is to support existing subscriptions and compatible devices on the networks included in the design. We confirm operator support, frequency bands and the actual equipment before choosing the system.
Can you cover more than one mobile network?
Yes, suitable designs support several operators. The signal sources, equipment and authorisation arrangements determine which networks are included. The proposal lists these explicitly.
Does this replace Wi-Fi or a private network?
These services do different jobs. Public mobile coverage connects supported cellular devices to their operators. Wi-Fi and private networks serve their own local devices and applications. The coverage design identifies which connection each service uses.
How do we scope the project?
Start with the communication points in your venue procedures. Tell us where reception is getting in the way. We assess the estate and help build the business case, then manage the installation and support around your operation.
How is coverage matched to our site?
We match coverage to the building, the mobile operators your people use and the available signal and capacity. Survey percentages describe the problem people experience; they are not installation improvement figures.
Make mobile coverage work for your operation.
Bring staff rooms, public areas and coordination points into your communication plan. Help teams receive information, acknowledge instructions and keep a shared picture of an unfolding situation.