Master Key Systems for Commercial Buildings
Commercial buildings need access that matches reality: tenants, shared areas, contractors, maintenance and managing agents. A properly designed master key suite gives you segmented access, optional restricted keys, and documentation that supports handovers, refurb phases, and incident response.
Trusted master key system support
Speak to an MLA accredited locksmith team with in-house planning, documented suite records, and practical support before and after installation.
Master locksmiths with BSI accreditation
MLA approved locksmiths, BSI certified key systems, and independently audited security standards.
Quick efficient and keys worked without any problems, and it was more economical than some online key cutting services
Peter Bainbridge
This is the third time I have used Lock and Key and each time they have been extremely helpful and always met my requirements. Once you use keyed alike you really appreciate not having to carry muliple keys around with you.
Ged McConville
Easy to navigate website and ordering if you have the information required. Packed well and fast delivery. 1st class service. Highly recommend this company.
Sandra Thorn
Common problems in commercial estates
The goal is “least privilege” access that stays maintainable: tenant segmentation, enforceable authorisation, and documentation.
Tenants, contractors, and shared access
Buildings need shared access without giving everyone the keys to the kingdom.
Refurbishments and churn
Tenants change. Doors change. The hierarchy must handle change without being redesigned every time.
Uncontrolled copying
If keys can be copied, governance collapses. Restricted keys help keep control.
Multiple stakeholders
Landlord, managing agent, FM, and tenants all need clarity on who can order keys and approve changes.
Mixed estates: mechanical + electronic
Many commercial buildings blend mechanical and electronic control. Hybrid strategies can reduce friction and improve audit.
Incident response (lost masters)
When master tiers are lost or compromised, containment must be fast and operationally realistic.
Example hierarchy (tenants + shared areas)
Tenants get their demise plus agreed shared doors. Services and plant rooms sit in separate tiers. Managing agent/FMs get controlled masters.
System pages commercial teams use most
Copy-prevention, governance, hierarchy patterns, and hybrid decisions show up constantly in commercial buildings.
Restricted key systems
Copy-prevention options for landlord/managing agent control and auditable re-orders.
Key hierarchy design explained
GMK/MK/SMK/CK patterns that map cleanly to tenants, shared areas and plant.
Key control policies
Ordering authorisation, contractor processes, issuance/returns, and auditing.
Hybrid mechanical vs electronic systems
Where electronic improves audit and convenience (and where mechanical stays better).
High-security tiers for higher-risk areas
Secure rooms, data/comms, and sensitive zones benefit from risk-led decisions.
High-intent pages (quick actions)
These are the pages that match real-world triggers: handovers, refurb phases, lost keys, and urgent containment.
Get a master key system quote
New building, replacement suite, or portfolio upgrade. Start with doors and access roles.
Convert your building to a master key system
Replace fragmented locks with a designed hierarchy and governance.
Expand an existing master key suite
Add doors, tenants, zones or refurbishment phases without drifting tiers.
Replace lost keys in an existing suite
Controlled replacement based on exposure level and operational constraints.
Emergency rekeying for master key suites
24/48 hour containment options for lost master tiers and suspected compromise.
Audit outdated or unknown key suites
Legacy estates: restore documentation and control before expansion decisions.
What we need to scope a commercial building suite
Start with tenants + shared areas. Add plant/service zones and governance. We can scope from partial info and refine via surveys.
Related industry pages
Same control problems, different estate patterns.
Facilities Management Companies
Governance, contractors, audits, and incident response.
Local Authorities
Governance, contractors, audits, and incident response.
Universities
Governance, contractors, audits, and incident response.
Build-to-Rent (BTR)
Governance, contractors, audits, and incident response.
Hospitals & NHS Estates
Governance, contractors, audits, and incident response.
Ready to segment tenants and governance properly?
Send footprint, tenant/shared areas, plant zones, and who authorises key orders. We’ll propose a hierarchy with restricted key options and audit-ready documentation.
Urgent incident?
Lost keys or master tier exposure:
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.