Your front door lock is one of the most important parts of your home's security. If your door currently has a standard 3-lever or 5-lever mortise lock, upgrading to a BS3621 or BS8621-compliant mortise lock can provide improved protection and greater peace of mind.
At A.L.S Locksmith, we provide professional mortise lock upgrades for homeowners across Paisley, Glasgow and the surrounding areas, ensuring your new lock is correctly fitted and suited to your door.
Why Upgrade Your Existing Mortise Lock?
Many older properties still have traditional 3-lever or 5-lever mortise locks fitted to their wooden front doors. While these locks can provide basic security, not all offer the level of protection expected from modern insurance-approved locking systems.
Upgrading to a suitable BS3621 or BS8621 mortise lock can improve your door security and help you meet the requirements of your home insurance policy.
A professional assessment will establish whether your existing lock needs replacing and which upgrade is most appropriate for your door.
What Is a BS3621 Mortise Lock?
BS3621 is a British Standard for thief-resistant locks designed for use on external doors. A suitable BS3621 mortise deadlock incorporates security features intended to resist common methods of forced entry and manipulation.
These locks are commonly recommended for wooden external doors and are frequently specified by home insurance providers.
When upgrading from a basic 3-lever or 5-lever lock, choosing a compliant BS3621 lock can provide a significant improvement in security.
What Is a BS8621 Mortise Lock?
BS8621 is a British Standard covering thief-resistant locks designed to allow the door to be opened from the inside without a key, while retaining key-operated access from the outside.
This can be particularly useful where a keyless internal escape facility is required or preferred.
The correct choice between BS3621 and BS8621 depends on the door, the occupants' needs and any applicable insurance requirements. Always check your policy conditions before selecting a replacement lock.
Why Professional Fitting Matters
Choosing a quality lock is only part of the job. Correct installation is essential to ensure the lock operates reliably and provides the intended level of security.
At A.L.S Locksmith, our mortise lock upgrade service includes:
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Assessing your existing lock and door.
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Recommending a suitable replacement.
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Removing the old 3-lever or 5-lever lock.
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Professionally fitting the new BS3621 or BS8621 mortise lock.
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Checking the alignment of the lock, keep and door.
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Testing the locking mechanism and ensuring smooth operation.
Where necessary, adjustments can be made to help the lock engage correctly and operate as intended.
Upgrade Your Door Security with A.L.S Locksmith
If your wooden front door still relies on an older 3-lever or 5-lever mortise lock, now is a good time to consider an upgrade.
A professionally fitted, standards-compliant mortise lock can help strengthen your home's security, improve everyday reliability and provide reassurance that your door is fitted with a suitable locking system.
A.L.S Locksmith provides professional lock upgrades across Paisley, Glasgow, Renfrew, Johnstone, Bearsden, Milngavie and surrounding areas.
Protect your home with the right lock, professionally fitted.
