Historic Lock Restoration, Antique Keys & Sensitive Security Upgrades
At NKT Security, restoring historic locks is more than a service — it is a craft and a passion. We specialise in the repair, restoration and sympathetic upgrading of traditional locks, antique locking systems and period ironmongery across Edinburgh and Scotland.
From Georgian townhouses and Victorian villas to churches, listed buildings, estate properties and historic commercial premises, we help preserve original character while returning locks to safe and reliable working order.
Whether your lock is seized, worn, missing keys, damaged, or simply neglected through age, we can often restore original mechanisms that others would replace.
Specialist Heritage Lock Services
Antique Lock Restoration
Careful dismantling, cleaning, repair and recommissioning of traditional locks including:
- Mortice locks
- Rim locks
- Cabinet locks
- Cupboard locks
- Church and hall locks
- Gate and outbuilding locks
- Large lever locks
- Decorative iron locks
Our goal is always to preserve as much original material as possible.
Key Cutting & Key Creation for Old Locks
Lost keys are common with older properties. We can often:
- Hand-fit replacement keys
- Cut keys for antique locks
- Create keys from lock internals where no original exists
- Supply duplicates where patterns are available
- Repair bent or worn original keys
Many historic locks require skill and patience rather than simply ordering a modern blank.
Listed Buildings & Period Properties
We regularly assist owners and caretakers of:
- Listed buildings
- Georgian and Victorian homes
- Churches and chapels
- Estates and country houses
- Historic offices and commercial premises
- Traditional tenements
- Museums and heritage sites
We understand the importance of protecting original doors, finishes and fittings.
Sympathetic Security Upgrades
Sometimes old locks need improved security, but replacing original hardware can damage character.
We can advise on discreet upgrades such as:
- Reinforcing existing locks
- Secondary hidden security measures
- Insurance-compliant supplementary locks
- Improved strike plates and keeps
- Keyed alike systems where suitable
- Internal strengthening while retaining original appearance
The aim is modern protection without losing period charm.
Why Choose NKT Security?
Genuine Interest in Historic Locks
Restoring old locks is something we truly enjoy. Many modern locksmiths prefer replacement; we prefer repair whenever practical.
Respect for Original Craftsmanship
Historic locks were often beautifully made and designed to last generations. We treat them accordingly.
Honest Advice
If restoration is worthwhile, we’ll say so. If replacement is the safer or more economical option, we’ll explain clearly.
Local & Independent
Based in Edinburgh and serving surrounding areas across Scotland.
Common Heritage Lock Problems We Solve
- Lock stiff or seized through age
- Key lost or broken
- Door difficult to secure
- Mechanism slipping or misaligning
- Rust or corrosion damage
- Internal spring failure
- Worn wards or levers
- Antique key no longer turning
- Historic lock missing parts
Areas Covered
Edinburgh, Lothians, Fife, Borders and wider Scotland by arrangement.
If you have a significant heritage property or specialist restoration project, please get in touch.
Request Advice or a Quote
If you have an old or unusual lock, photographs are often helpful. We can advise whether restoration, key making or discreet upgrading is the best route.
Call NKT Security today to discuss your heritage lock project.
Preserve the character. Restore the function. Improve the security where needed.