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MCIA LOCKSMITH

Master Key and Keyed Alike Systems

Keyed Alike Systems

Master key and keyed alike systems

Master Key and Keyed Alike Systems in Cricklewood, Brent Cross and North West London


Tired of carrying a bunch of keys for every door? MCIA Locksmith designs, supplies, and installs master key systems and keyed-alike locks for homes, landlords, and businesses across Cricklewood, Brent Cross, and the surrounding areas. One key can open several doors, and each person only has access to the areas they need.

Book your free master key assessment or call 07918 404983.

What Is a Keyed Alike System?

A keyed alike system means several locks use cylinders that all work with the same key. Each lock opens with that one key, so you don’t need a different key for every door.

It’s a practical choice for:

  • Front and back doors at home
  • Shops and offices
  • Rental properties and HMOs
  • Gates, garages and outbuildings
  • Several buildings under one owner

Benefits of Keyed Alike Locks

  • Fewer keys to carry and lose
  • Quicker access for staff, tenants and family members
  • Lower long-term costs, with fewer keys to cut and replace
  • Easy to expand, as new locks can be added to the same system later

What Is a Master Key System and How Does It Work?

A master key system gives each person access only to the doors they need, while one authorised master key opens every door in the system.

For example, a tenant’s key opens only their flat, while the landlord’s master key opens every flat and the communal areas. Each user’s key works only on their own lock, but the master key overrides all of them.

Who Needs a Master Key System?

MCIA Locksmith designs and installs master key systems for:

  • Offices and commercial premises
  • Landlords and property managers
  • Schools and care facilities
  • Hotels and apartment blocks
  • Warehouses and industrial units

Keyed Alike vs Master Key: Which Do You Need?

Keyed Alike

How it works

  • One key opens every lock.
  • You carry one key instead of a bunch, which keeps things simple.

Best for

  • Homes
  • Small shops
  • Garages

Access control

  • Everyone with a key can open every lock.
  • There are no separate access levels.

Typical user

  • Homeowners
  • Small businesses

Master Key System

How it works

  • Each lock has its own individual key.
  • One master key opens every lock in the system.

Best for

  • Landlords
  • Offices
  • Schools
  • Multi-tenant buildings

Access control

  • Each user has a different access level.
  • Individual keys open only their own doors, while the master key gives those in charge full access.

Typical user

  • Property managers
  • Larger organisations

Not Sure Which Suits You?

We’ll recommend the right option during your free assessment.

Why Choose MCIA Locksmith?

A System Designed Around Your Property

Every building is different. We assess your doors, users and security needs, then design a system to match, rather than offering a one-size-fits-all package.

New Locks Fitted or Existing Locks Reused

Where practical, we incorporate your existing locks into the system to help keep costs down.

High-Security Cylinder Upgrades

We can upgrade to high-security cylinders for extra protection against lock snapping, bumping and picking. Ask us about options that meet recognised standards such as British Standard BS 3621 and the TS 007 kitemark.

Individual Access Levels for Every User

Give tenants, staff and contractors exactly the access they need and nothing more.

Replacement and Spare Keys Always Available

Lost a key or need more? We can supply replacements and extra keys, and advise you on key control to prevent unauthorised copying.

Experienced Local Locksmith

We’re based at 1 Sheldon Road, NW2 3AL, so we’re close to the areas we serve. Find out more about us.

Areas We Cover

We install master key and keyed alike systems across Brent Cross, Cricklewood and nearby areas, including:

  • Colindale
  • Edgware
  • Kilburn
  • West Hampstead
  • Dollis Hill
  • Willesden Green
  • Hendon
  • Finchley

If you’re nearby but don’t see your area listed, get in touch, and we’ll let you know if we can help.

Frequently Asked Questions

How much does a master key system cost in London?

The cost depends on the number of doors, the cylinder type, and the level of security you need. We provide a free, no-obligation quotation after assessing your property.

Can you make my existing locks keyed alike?

In many cases, yes. If your existing cylinders are suitable, we can re-pin or replace them so they work with the same key. We’ll tell you honestly if replacing them would be better value or more secure.

Is a master key system secure?

Yes, when it’s designed and managed properly. Using quality cylinders, controlling who holds the master key and keeping a record of key holders all help keep the system secure.

Can landlords use master key systems for rental properties?

Yes. Landlords and property managers often use them so that tenants can access only their own property. In contrast, the landlord or agent can access every unit when needed, within the tenancy agreement and legal requirements.

How long does installation take?

We can complete most small installations in a single visit. Larger commercial or multi-building systems may take longer, and we’ll give you a clear timescale in your quotation.

Can I add more doors to the system later?

Usually, yes. A well-planned system can be extended, so it’s worth telling us about any plans during the assessment.

Do you supply spare and replacement keys?

Yes. We can supply additional keys for your system. For added security, ask us about restricted key systems that prevent unauthorised copying.

Security and Safety Considerations

When planning a system for a business or shared building, remember that fire exits must remain easy to open from the inside in an emergency. Read the government’s guidance on workplace fire safety responsibilities. For wider advice on securing your premises, see Secured by Design, the police-backed crime prevention initiative.

Get Your Free Master Key Assessment

Speak to MCIA Locksmith today for a free assessment and quotation tailored to your property’s doors, users and security requirements.

  • Call: 07918 404983
  • Email: contact@mcialocksmith.co.uk
  • Visit: 1 Sheldon Road, NW2 3AL
  • Contact us online

Related reading: More locksmith advice on our blog

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