Master Key Systems
Secure, auditable and patent protected master key suites for HMO Landlords, MOD sites, airports, estates teams, facilities managers, councils, NHS sites, schools, housing providers, marine industry, and commercial buildings. We design the hierarchy, specify the correct cylinders to suit your brief, pin and test the suite, then document it so future expansion and re-orders are simple.
Clear key hierarchy, optional high security TS007 3 Star or standard cylinder attack resistance and simple process to expand and modify the suite.
See how your whole system connects
Explore your keys, groups and communal doors in a visual system map. See expected access connections, give people the keys they need, and manage orders and permissions in one secure place.
You decide who gets the keys.
An order outside someone’s access comes to you for approval. Check who is ordering, where the keys are going and exactly what they requested. Approve it when it checks out, or deny it when it doesn’t.
Pair these approvals with PREM 4, our usual patented keyway, for control over key supply as well as who can order. Every decision leaves a record in your system’s history.
Already have TSR or HMJ keys? Use the ordering page above. For another key range, contact us to find the matching product.
Grand master, block and room keys explained
See how a school, estate or multi-door building can give senior staff site-wide access while keeping day-to-day keys limited to the right rooms.
Browse the Master Key Systems cluster
Technical guidance for system design, sector-specific pages for buyers, and high-intent landing pages for quotes, expansion and urgent issues.
Restricted keys, high-security suites, hybrid access control, hierarchy design, audits and key control policies.
Sector pages built around real triggers: lost keys, refurbishments, compliance, turnover, and multi-site estates.
Quote, expand, replace lost keys, convert a building, or handle an emergency rekeying situation.
Restricted key control for master key suites
For organisations that need strong key control, we can supply a patented restricted key platform. Keys cannot be copied without your written permission. Extra keys are typically cut and shipped within 48 hours, with clear documentation for re-orders.
What is a master key system?
A master key system is a structured key hierarchy that lets the right people open the right doors, and nothing else. It’s the standard approach for multi-door environments: estates, schools, NHS sites, councils, housing and commercial buildings. We primarily use fully patent protected keys, so it prevents unauthoirsed access. We can supply 'open' systems where key control is not a major issue.
Benefits
- Clear access hierarchy (GMK/MK/CK) with audit-ready documentation. Learn the hierarchy
- Expandable as your site grows; replacements keyed back to plan. Expand your system
- Optional restricted profiles to control duplication. Restricted keys
How it works
We map doors, groups, and access levels for staff, contractors, and services.
You can just email us how you want the doors to work, or send a spreadsheet listing the various doors and how you want the key heirarchy to work
Most customers have their own installation team, but as we are a large 'Bricks and Mortar' Master Locksmithing company we can offer full installation.
Expand, replace cylinders, and order keys online 24/7 provided you are the registered keeper of the suite. Above all, you can just pick up the phone and talk to us!
Industries we design master key systems for
Sector pages built around the real triggers that create urgent work.
Schools & Colleges
Sector-specific hierarchies, key control guidance, and the most common trigger events.
Universities
Sector-specific hierarchies, key control guidance, and the most common trigger events.
Hospitals & NHS Estates
Sector-specific hierarchies, key control guidance, and the most common trigger events.
Local Authorities
Sector-specific hierarchies, key control guidance, and the most common trigger events.
M.O.D. Bases
Sector-specific hierarchies, key control guidance, and the most common trigger events.
Facilities Management Companies
Sector-specific hierarchies, key control guidance, and the most common trigger events.
Popular next steps
High-intent pages built to convert: quotes, expansion, replacement and emergencies.
Master key system design guides
Hierarchy, restricted keys, audits, hybrid systems and high-security suites.
Case studies
Real systems we’ve designed and supported
Ready to plan your master key system?
Send a door list or call us. We’ll propose a clear hierarchy, restricted key control options, and quote the hardware.
Prefer to talk?
Phone: 01296 752080
Email: info@lockandkey.co.uk