Every estate has one: the CCTV nobody can log into, the alarm that cries wolf, the access system whose installer stopped answering. Gemini AMPM takes over poorly maintained security systems and makes them compliant — surveyed, documented, repaired and certificated, not ripped out for the sake of it.
Security systems get orphaned. Installers go bust, engineers move on, documentation was never written, and the maintenance visits quietly stop. The system limps along — half the cameras recording, one alarm zone bypassed since 2022, an access database full of people who left years ago. Sound familiar? We adopt systems like these. First a survey that documents what actually exists, then fault rectification that fixes root causes rather than resetting symptoms, then a maintenance regime that keeps it honest.
The takeover ends with testing — every detector walked, every camera checked, every door cycled — and a document set your next contractor would thank you for. You keep the hardware that earns its place. You lose the mystery. And you finally get one number to call: a named engineer, 24 hours a day.
Remedial work is usually triggered by a letter — an insurer tightening requirements, a broker asking awkward questions after a claim, a risk survey nobody enjoyed. The demands are standard: an alarm at the right grade, certificated maintenance, monitored signalling, evidence. We translate the wording into a costed uplift plan, do the work and issue NSI Gold certification that underwriters recognise on sight, because that is precisely what the approval exists for.
We also make good properly. Security cabling punches holes through fire-rated walls and floors, and a remedial job that leaves them open trades one liability for another — so every penetration is sealed as passive fire protection, not decorating. Compliance that only covers one risk register is not compliance. It is luck.
Yes — takeovers are a core service, not a favour. We survey and document the installation, test every device, recover or rebuild programming where the original installer left nothing behind, and bring the system under our NSI Gold maintenance. Most manufacturers’ equipment can be supported; where something is genuinely obsolete, we say so and price the replacement honestly. You do not need the original paperwork, and you do not need the engineer codes.
Send us the wording. Insurer requirements usually resolve to a handful of specifics — an intruder alarm grade under BS EN 50131, monitored signalling, police response, maintenance by an inspectorate-approved contractor — and we audit your existing systems against exactly that list. You get a gap report and a costed plan, we carry out the uplift, and the NSI Gold certification we issue is the evidence your insurer is actually asking for.
Rarely. Most poorly maintained systems fail through neglect, not bad hardware — cabling is often sound, and much equipment recovers with firmware, reprogramming and honest recommissioning. Our surveys separate what performs from what pretends: keep the first, replace the second, and spend the budget where the risk actually lives. A takeover that reuses seventy per cent of an installation is a normal outcome. Wholesale rip-outs are for systems that were wrong on day one.
A named engineer, not a call centre, comes back within 24 hours. Tell us the building and what you’re dealing with, and we’ll scope it properly.