Moving into a new property is the most straightforward case. No matter how amicable the handover, previous owners cannot account for every key that has been cut over the years. Contractors, estate agents with access during the sale, family members, previous tenants in rental properties: any of them may have a copy that was never returned. A full cylinder change on all external doors takes less than an hour and eliminates that uncertainty from day one.
Security upgrades are the second most common reason for a lock installation appointment. If your existing locks are standard euro cylinders without anti-snap protection, fitting upgraded cylinders is one of the most cost-effective security improvements available. The method used to defeat standard cylinders, known as lock snapping, requires no specialist skill and can be done in seconds. Anti-snap cylinders are specifically designed to deny that attack, and the difference in protection is significant for a relatively modest outlay.
Landlords arranging lock changes between tenancies are a regular part of the workload, and the service is set up to accommodate the scheduling pressures that come with that. Post-burglary installations can be combined with an upgrade visit so the repair and the improvement happen at the same time.
The right lock depends on the door. uPVC and composite doors use euro cylinders, and the upgrade path from a standard cylinder to an anti-snap, anti-drill, anti-pick cylinder is straightforward and does not require any modification to the door. The cylinder simply needs to match the profile length of the existing fitting.
Older timber doors typically use mortice locks, and British Standard mortice deadlocks to BS3621 are the standard recommendation for any door where insurance compliance matters. A five-lever mortice deadlock correctly fitted provides substantial resistance to both picking and physical attack, and most insurers will accept it as meeting their lock requirements.
Multi-point locking systems on uPVC and composite doors are a different category again. The gearbox, which is the central mechanism that drives the multi-point bolts, is the component that fails most often. Replacing the gearbox rather than the entire door furniture is usually the right call when the mechanism becomes stiff or fails to throw the bolts fully.
High-security locks, smart lock systems, and keyless entry are also available for customers who want more than a standard cylinder replacement. Smart locks have become a practical option for landlords and homeowners who want to manage access without physical key distribution.
If you want an honest assessment of likely cost before Max leaves to attend, a phone call is enough. The nature of the problem, your door type, and your approximate location give enough information to provide a realistic figure.
It is worth checking what your home insurance policy actually requires before assuming your current locks are compliant. Many policies specify locks to BS3621 on final exit doors, and some extend that requirement to accessible windows or patio doors. A lock that does not meet the specified standard may affect a claim outcome, even if the rest of the policy is in good standing.
Max can advise on whether your current locks meet that standard and install compliant alternatives where they do not. The conversation takes a few minutes and could save a significant amount if it prevents a claim complication later.
A lock installation visit starts with checking the existing door and frame before anything is removed. The door alignment, the condition of the keep, and any existing wear in the frame all affect which lock is most appropriate and how it should be fitted. This assessment takes a few minutes and avoids the situation where a new cylinder goes in only to find that the door has dropped slightly and the locking points are not engaging properly.
The old cylinder or mechanism is removed, the new one is fitted, and the operation is tested in both directions before the visit is complete. If anything about the door or frame needs attention alongside the lock fitting, that is flagged at the time. The warranty on all parts and labour runs to twelve months.
Can you change multiple locks in one visit?
Yes. Multi-lock visits are common, particularly for new homeowners wanting to change all external doors at once. A visit covering three or four cylinders is typically completed within ninety minutes.
