Between tenancies is the cleanest and safest time for a landlord to reset access. Once lawful possession has returned and the property is empty, old keys can be made useless, lock standards can be checked and the incoming tenant can start with a known key set.
A useful example is LocksmithLocal, where the emphasis is on qualified local locksmiths, City & Guilds and NCFE-backed training through MPL Locksmith Training, non-destructive work wherever possible and a clear explanation before parts are changed. This article uses that kind of professional process as the model for what good service should look like.
Why this service matters
Landlord locksmith work sits between practical property management and legal responsibility. Locks must keep tenants safe, keys must be controlled between tenancies, communal doors must work reliably, and repairs must be handled quickly without crossing into unlawful exclusion or harassment.
The safest rule is simple: lock changes are appropriate after lawful possession has been regained, when a tenant requests or authorises a repair, when keys are compromised and everyone with a right to occupy is protected, or when communal security requires controlled work. They are not a shortcut to possession.
The key-control problem is simple: by the end of a tenancy you rarely know how many copies exist. The outgoing tenant may have acted responsibly, but copies may still sit with partners, relatives, cleaners, carers or contractors. A cylinder change or re-key makes the history irrelevant and gives the next occupier a clean start.
First checks before you book
Before booking anyone, make the situation safer and gather the information that will help the locksmith arrive prepared. The right preparation reduces delay, avoids unnecessary damage and gives you a clearer conversation about price and method.
- Confirm the tenancy has ended and you have lawful possession before changing locks.
- Change or re-key external doors, communal access where appropriate and outbuilding locks.
- Check whether locks meet insurer requirements and are suitable for the door type.
- Record how many keys are issued to the new tenant, agent and landlord.
- Inspect window locks, patio doors and garage access during the changeover.
- Avoid using lock changes as a possession tactic while a tenant remains in occupation.
How a professional locksmith approaches the job
A landlord locksmith should clarify the property status before starting. Is the property empty between tenancies? Is the tenant still in occupation? Is the work on an individual flat door, a communal door, an HMO bedroom or an external gate? The answer affects access, key handover, record keeping and sometimes the legal risk.
- The locksmith confirms which doors and locks need resetting and whether cylinders or full locks are required.
- They fit new cylinders, re-key where suitable, or upgrade locks below standard.
- They hand over recorded keys and advise on any repairs needed for tenant safety or insurance.
The best technicians also test their own work under realistic conditions. A door should not be declared fixed only because the lock turns once while the door is open. It should be checked as the customer will use it: closed, opened, locked, unlocked and, where relevant, tested with every new key or access method.
Benefits of getting the right repair
The benefit of a trained locksmith is not limited to speed. It is the ability to solve the cause of the fault, protect the surrounding door or window, and leave the customer with a result that will keep working after the van has gone.
- Former keys stop working before the new tenancy begins.
- The landlord has a clearer key record.
- Insurance and security weaknesses are spotted during the void period.
- The tenant receives a property that feels properly prepared.
Costs depend on volume and planning. A single between-tenancy cylinder change is straightforward; a block, HMO or portfolio needs a key-control plan, records, spare-key management and consistent hardware. Spending a little more on controlled keys and reliable commercial-grade parts can reduce repeat call-outs and disputes.
Useful questions to ask before work starts
A helpful way to judge the service around landlord lock changes between tenancies: a practical uk property checklist is to listen to how clearly the locksmith explains the route from diagnosis to repair. The answer should include access checks, likely parts, whether repair is realistic, how damage will be avoided, and whether any security upgrade is optional rather than automatic. This also gives you something to compare if you speak to more than one company: the most professional answer is usually specific, calm and transparent, not a pressure sale.
- Can the fault be diagnosed before drilling or replacing parts?
- Which part is actually failing and which parts are still serviceable?
- Will the price be confirmed before work starts?
- Will the completed lock, door or window be tested from both sides where possible?
- Are the replacement parts suitable for the property type and security expectation?
Common mistakes to avoid
Most expensive locksmith problems start with a small mistake: waiting too long, forcing a part, accepting a vague quote or treating every symptom as if it has the same cause. Avoiding those mistakes protects both the property and the budget.
- Changing locks before lawful possession is regained.
- Only changing the front door while back doors, garages or gates retain old keys.
- Failing to document who received keys.
- Ignoring stiff uPVC doors and window locks between tenants, then facing repairs after move-in.
Choosing an accredited locksmith
The person working on the lock is being trusted with access, so credentials should be treated as part of the job rather than an afterthought. Ask what training the locksmith has completed, whether they are DBS checked, whether they carry insurance and whether they will explain the method before drilling or replacing parts. Those questions protect the customer as much as the door.
For customers, the practical signs are straightforward: a named person, clear identification, proof checks before entry, a fixed price before work starts, an explanation of the method, and a willingness to repair where repair is the better answer. Those signs matter more than a rushed promise to be cheap or fast.
Quick questions answered
Is a lock change legally required between every tenancy?
Not always, but it is strongly recommended for key control, tenant confidence and insurance expectations.
Can a landlord change locks during a dispute?
Not to exclude an occupying tenant. Landlords should follow the proper legal process and take legal advice where needed.
Is cylinder replacement enough?
Often yes on uPVC and composite doors if the mechanism is sound. Timber doors may need a different lock type or standard.
Final thought
A between-tenancy lock change is a small task with a large security benefit. Do it only at the lawful point, record the keys and use the opportunity to check the wider property.