Grand Keys Auto · Residential locksmith services

Home lock changes & replacement

Grand Keys Auto carries out euro-cylinder replacements for domestic doors, whether you are moving home, have missing keys or need to replace a worn cylinder. Send your postcode and lock details for a quote. Got a different lock type? Just ask.

Identify what you want to change

A cylinder, a mortice lock and a complete multipoint mechanism are not the same component. Say whether you want old keys to stop working, have a worn keyhole or are dealing with a door that will not close correctly. Replacing the wrong component may not address the symptom.

List the doors involved and whether the property has shared or landlord-managed locks. We'll talk you through the options for every door.

Keep security requirements specific

If your insurer or landlord requires a particular lock specification, have the written requirement ready. Ask about a proposed product's exact model and documentation, and we'll match the product to it.

For rented or shared accommodation, establish permission before changing a lock and discuss who needs replacement keys. If a break-in has damaged the frame or door, say so: lock replacement alone may not make the opening secure.

Confirm compatibility and the quote

Send your postcode, door material and whether the door currently opens and secures. A safely taken photograph of visible markings can help the initial conversation, but it does not establish a final diagnosis.

Ask which parts and labour are included, how many keys would be supplied and what happens if additional door work is needed. We confirm your price before we set off.

Your questions

Can all my locks use one key?

That depends on the existing locks and available compatible products. Tell us about your doors and we'll advise on keyed-alike options.

Can a new lock fix a sticking door?

Not always. Alignment or mechanism faults can also cause sticking. Tell us whether the lock operates differently with the door open, if you already know this safely.

Home Locksmith quote

Let’s talk about your door.

Send your postcode, the issue and how urgent it is. Add the door or lock type if you know it; we’ll confirm a price before we set off.

If anyone is in immediate danger, contact emergency services. Call us — open 7 days, late callouts until midnight.

Tap to call · Open 7 days · late callouts until midnight07876 629522

Photos stay on your device. Attach the photo yourself in WhatsApp after it opens; this form sends text only. Avoid keys, personal documents and access codes in photos.

Review and send the message in WhatsApp. Details are not stored here. We’ll let you know when we can be with you.