London Marylebone Security Key Holding

Imperial Security provides professional key holding for businesses across Marylebone, giving retailers on Marylebone High Street, offices near Baker Street and period buildings around Wigmore Street a licensed guard who stores their keys securely and responds in person whenever an alarm activates out of hours.

Our guards attend the premises, check for signs of forced entry or damage, secure the building and liaise with the police where needed, so a manager or director never has to leave home for a false alert or a genuine break-in. It suits retail units, consulting rooms, managed offices and residential blocks that need someone available around the clock without keeping their own staff on call.

Much of Marylebone Village is owned and managed by the Howard de Walden Estate, which has kept a large share of the area's shops, restaurants and consulting rooms inside period buildings rather than modern retail units. That matters for key holding because access to these properties often involves older locks, shared entrances and estate-specific procedures that a guard needs to know in advance, not work out at two in the morning during an alarm callout.

Around Baker Street and Gloucester Place, the mix shifts towards serviced offices and larger retail units, including newer developments such as Loxton Walk, where multiple businesses share a building and staggered closing times increase the number of after-hours callouts. Our key holding service is built around this variety, with the same secure storage and response standard whether the property is a boutique on the high street or a multi-let office block.

7 Day Rolling Contract

No hidden fees, hassle free, Flexible. Not locked into a long-term contract. Easy to scale up or down

Sector Specific Experience

Each security guard is selected based on experience relevant to that specific sector

Street Wise & Vigilant

Local, street-smart expertly trained to protect & deter threats. Confident & observant

We also support restaurants, galleries and multi-let retail schemes such as Loxton Walk with the same key holding standard.

Marylebone's mix of period conversions, shared entrances and later commercial builds each raise different key holding questions, and most enquiries come down to one of the following.

No one available to attend an alarm

Many Marylebone businesses are owner-run or staffed by a small team who cannot leave home every time an alarm sounds. We hold the keys and attend in their place, so the business is checked without anyone losing sleep over a false trigger.

Older locks and unfamiliar access points

Period buildings across the area sometimes have original ironmongery or awkward rear access that a guard attending for the first time could struggle with. We record access notes for each site in advance so a callout is not the moment we learn how to get in.

Shared entrances in multi-let buildings

Offices and retail units sharing a single street entrance can mean confusion over which tenant has triggered an alarm. We confirm the correct unit before entry, protecting neighbouring businesses from an unnecessary disturbance.

Keys held informally by staff

Passing spare keys between employees creates a weak point that is hard to track. Our controlled storage replaces that arrangement with a logged, accountable system that keeps the business owner in control of who can access the premises.