Master Key Systems

Increase control and security

Master Key System Services in Nottingham

A master key system can be a complex, but hugely effective security method whereby a single key can open all or just one lock.

Halls Locksmiths specialise in master key systems. We design and manufacture Master Keys in-house within our workshop, ensuring a fast turn-around for additional keys without the usual lengthy delays.

We can create master key systems from many manufacturers including Assa, Abloy, Union, Abus, Grundman, Iseo, Kaba, DOM and Mul T Lock.

Want to know how Master Key Systems can keep you secure?

Master keys can be in the form of:

A traditional key

The master key holder would own the key to open multiple locks, while the sub keys below it will have the ability to open less, or a single lock.

A card, fob and mechatronic keys

Working in a similar way to the traditional key, but using cards, fobs, mechatronic keys and can be ‘networked’ to a single control point to check doors and staff access.

Master key systems can be perfect for:

  • Housing associations
  • Buildings with multiple entry points
  • Public facilities
  • Schools and universities
  • Apartments
  • Hospitals and healthcare
  • Retail, Manufacturing and Commercial

How it works

Master key systems work in a hierarchy or a ‘family tree’ arrangement and give significant flexibility in deciding who has access to what properties.

The top key is called the ‘Grand Master Key’, the next keys down are called ‘Master Keys’ and the keys underneath those are called ‘Sub Master Keys’. The bottom line of keys with the least amount of access, are the ‘User Keys’ or ‘Servant Keys’.

The Grand Master Key fits all locks, the Master and Sub-Master keys fit a smaller range of locks and the Servant key will only fit one.

This system can be replicated using electronic reading devices such as proximity readers for fobs or cards and mechatronic locks and keys. They can also be ‘networked’ to a single control point for greater monitoring.

Master Locksmiths

We are proud to design and manufacture master key systems in our workshop at the back of our Nottingham shop, to give you quick service, expert advice and ongoing maintenance for your systems.

Halls Locksmiths are members of the Master Locksmiths Association, accredited with Trading Standards ‘Buy with Confidence’ scheme and all of our staff are DBS checked.

If you’d like to find out more about master key systems and our manufacturing process, call us on 0115 9780141, we’d be happy to help.

6 security measures all small businesses should use

As a small business keeping your property and its contents secure is highly important. Ensuring your security measures are up to date and sufficient to protect your business is key in providing you with peace of mind. Any business with a physical location is exposed...

Top 5 things to know before you buy a safe

Safes are a practical way to protect your valuables from intruders and damage. Safes come in a range of different sizes, cash ratings and prices, amongst other safety benefits that are important to consider as a buyer depending on your circumstances. Whether for home...
class room

Top 6 security measures all schools need

It is highly important to protect school buildings against external intruders and to be in control of who has access to certain areas of a school internally. We have created a list of our top 6 recommended traditional and modern security measures to help keep your...

Lost your keys? Here’s what you need to know!

Have you lost your house keys or found yourself locked out of your home? Don’t worry, your local locksmiths can help. Losing your keys can seem like a huge issue, but it doesn’t have to be. What should you do if you lose your keys? Don’t worry, it happens to everyone....