Lock Repair & Replacement
Professional, non-destructive lock repair and replacement services.
Trusted MLA-qualified locksmiths with over 13 years of hands-on experience, repairing and replacing locking systems.
Non-destructive lock repairs & replacements
Fast, Secure, Lock Repairs & Replacement Solutions Near You
If your lock is jammed, sticking, or won’t turn smoothly, our expert locksmiths can repair it without damaging your property.
We specialise in restoring faulty locks using non-destructive techniques and manufacturer-approved tools.
Common lock issues we fix include:
- Jammed or seized locks
- Snapped keys and cylinder faults
- Misaligned or stiff uPVC locks
- Worn-out latch or gearbox mechanisms
Every repair is completed to a professional standard, ensuring your door is secure and functioning like new.
- Lock repair & replacementLock Upgrades Lock repair & replacement Lock repair & replacementHome SecurityResidential Locksmith Services
Immobiliser had gone on my car. Arrived promptly and sorted the issue very quickly. Would recommend.
From start to finish, the service was honestly faultless. He got my door open with absolutely no damage, which I was so relieved about. You can tell he knows exactly what he’s doing — proper professional, efficient, and clearly experienced.
The price was great, especially considering how fast and smooth the whole thing was. No messing around, no hidden charges, just solid, honest work. And on top of that, he was genuinely a good guy to deal with — polite, easy to talk to, and even smelt nice too 😂 Little things like that actually make the experience so much better when you’re stressed out.
Honestly, he was a saviour in a moment when I really needed someone reliable. If you ever end up locked out or in any kind of locksmith situation, I’d recommend Locks on Sea Locksmiths without hesitation. Top-tier service from a top-tier guy.
Sorted our lock, replaced a new locker and alignment.
Excellent service couldn’t be more happy!
Helpful, friendly, fast and very fair. Full stars!
Lock Replacement warranties
When repair isn’t possible, we supply and fit high-security lock replacements, all backed by a 12-month parts and labour warranty and locks that meet the British Standard BS 3621 or higher.
Mortice and Euro cylinder locks
Expert repair and replacement of mortice and euro cylinder locks for homes and businesses.
We use only British Standard parts for reliable, insurance-approved security. All work is covered by our full warranty.uPVC and composite door locks
Specialists in repairing and replacing uPVC and composite door locks, including multipoint systems and gearboxes.
We restore smooth, secure function using quality parts. Fitted under warranty for lasting peace of mind.Patio, gate, and garage door locks
Comprehensive repair and replacement for patio, gate, and garage door locks of all types.
From seized mechanisms to lost keys, we provide durable, warrantied solutions to keep your property secure.
onsite
key cutting services
Trusted, Qualified, and Professional Key Cutting
To complement your lock repair or replacement, we provide on-site key cutting using high-grade blanks for precise, durable results.
Our mobile workshop allows us to complete the entire service on-site to ensure new keys work perfectly first time, saving you time, hassle and money.
Why Choose Us
Your Trusted, MLA-qualified Locksmith Professionals
With over 13 years of hands-on experience, Locks on Sea is a family-run locksmith service known for reliability, speed, and care. We’re fully licensed, insured, and available 24/7 to handle lockouts, repairs, upgrades, and security checks across homes, businesses, and vehicles.
Our focus is fast response times, fair pricing, and quality workmanship every single time.
- 13+ Year Experience
- Open 24 hours a Day
- Super Fast Arrvial
- Competetive Pricing
- Locally Owned & Operated
- Accepting Credit Cards
- Quick & Honest Service
- Satisfaction Guaranteed
Locations Served
Proudly serving Southend, Leigh-on-Sea, Rochford, and surrounding areas with rapid response times.
We’re fully licensed
Every locksmith is MLA certified, insured, and trained to meet the highest UK security standards.
Top Quallity products
Every locksmith is insured, and trained to use the best industry grade tools and equipment.
24/7 Support
Real people, real locksmiths always ready when you need us, day or night.
Need a local locksmith?
Fast. Local. Available 24/7 across Essex.
Trusted by Clients Across Essex
We’ve helped thousands of customers in Southend, Leigh-on-Sea, and beyond with 5-star reviews and fast, honest service.
Have a lock issue or need urgent help? Fill out the form and we’ll get back to you right away or call us now for immediate assistance.
A+
Proven Reviews
5.0
Google Reviews
What our clients say!
Had Aaron booked in today as my
Immobiliser had gone on my car. Arrived promptly and sorted the issue very quickly. Would recommend.Very reasonable. Sorted my Audi lost key fob out in 30mins. Jay was awesome to deal with. Defo be back. Cheers.Really happy with the service, came at a time that suited me, was done quicker than I expected, will definitely use Arron again, thank youExcellent in all ways, turned up same day on the exact time given, very professional. Highly recommended!Excellent service. Both our car keys stopped working (tried changing the batteries multiple times with no luck) and Aaron came out to sort it quickly. Very friendly and much cheaper than Timpsons would have been.Couldn’t believe how fast he arrived — genuinely came out to me so quickly that I barely had time to panic. I called Locks on Sea Locksmiths expecting to be stuck for ages, but he was at my door within 20 minutes, calm, friendly, and ready to sort everything out.
From start to finish, the service was honestly faultless. He got my door open with absolutely no damage, which I was so relieved about. You can tell he knows exactly what he’s doing — proper professional, efficient, and clearly experienced.
The price was great, especially considering how fast and smooth the whole thing was. No messing around, no hidden charges, just solid, honest work. And on top of that, he was genuinely a good guy to deal with — polite, easy to talk to, and even smelt nice too 😂 Little things like that actually make the experience so much better when you’re stressed out.
Honestly, he was a saviour in a moment when I really needed someone reliable. If you ever end up locked out or in any kind of locksmith situation, I’d recommend Locks on Sea Locksmiths without hesitation. Top-tier service from a top-tier guy.Aaron was excellent! Really helpful before he came over and was able to come the same week.
Sorted our lock, replaced a new locker and alignment.
Excellent service couldn’t be more happy!By far the best company I’ve used. When I rang and told them the situation I was in, they were very quick and efficient. Very professional in there job. They came out quite late in the evening too and still determined to get the job done. Highly recommendExcellent service. Keys ordered and came to the house within 3 days and sorted new car and van keys. Will definitely use againGreat service from Aaron today! I lost my car key - Aaron came out and quickly rescued me. He replaced the key and re-coded it. Very professional, friendly and reasonably priced too.Got me out of tight spot when my car key was broken. Fast efficient and friendly. Thanks a lot!Aaron was an absolute star got to us in quick time about 20-30mins from when we called and had the lock sorted and us back in our flat in minutes of him arrivign and looking at the lock,would highly recommend his services,also very amicable and friendly customer service will definitely use again in future if have any lock problemsCalled last night, was at my house by 9am the next day! Great service, very fast and efficient, thankyou so much!Unbelievable service! Little one locked himself in the car and Aaron was there within 15 mins and we were back in the car within 10. Couldn’t be happier and really great value!Fab service from Aaron today - turned up when promised to cut some spare keys. Professional, polite and reasonably priced. I can't recommend highly enough!Great friendly service, really quick to respond and sort out all issues we had we locks. Thanks very much for all your help.Friendly staff on the phone and quick response on getting to the address. Entered the property without damage very quickly. Fantastic service that I'll be using again.Aaron was very professional and provided a great service. He came out to fix my door lock very quickly at the weekend even though it wasn't an emergency. Highly recommend!Was very efficient and kind and polite quick response. Overall very good service. Happy customer.Great service, quick to respond to my request for new locks on kitchen windows. All completed and really happy with the result and competitive price. Would definitely recommendThank you for such a great service and support.
Helpful, friendly, fast and very fair. Full stars!Brilliant quick efficient service by Aaron Came round straightaway and fixed my lock thanks again would definitely recommend.Amazing service, came out to me and fixed in under 30mins incredible life saverVery pleased with the work carried out. A very reliable locksmith. Arrived on time and cracked on with the job straight away.I have just moved into a rented property snd locked myself out of my house. I called Aaron and he came very quickly and fixed the lock and also fixed my door as well! Could not recommend him enough!!!Excellent service , locked car keys in car was at mine in 20 min , car opened in 5 min. Very friendly . Highly recommendGreat service, great price, really impressed, saved me a fortune & really knowledgeable and fair, highly recommend.Great service. 2 locks replaced and was able to do same day for reasonable price, explaining the locks and what was needed.Great service. Aaron is super quick, efficient and friendly. Great service 😁I was very impressed with the service I received from locks on sea. Aaron came to look at my windows that had been stuck fast for several years - he measured up and quoted for me the same day. As soon as the parts that he needed were in he came and fixed my windows, it’s so nice to be able to open them again especially now the weather is so hot. Thanks locks on sea 👍🏻Great service done by Aaron, fast response with very reasonable prices. Changed a lock and got me back inside when i was desperate. Thankyou so much, would highly recommend 👍🏼Needed a couple of new keys cutting, called locks on sea and they was able to come to my address within the hour to cut a new set all done on the van no need to go to a shop great service would recommend A*
Lock repair & replacement fAQ's
If you need some quick assistance, here are a few common industry queries we get frequently asked.
Can a locksmith repair a lock without replacing it?
Yes, most damaged locks can be repaired non-destructively using professional locksmithing tools and techniques. Replacement is only needed if the lock is unsafe or beyond repair.
How long does a lock replacement take?
A standard door lock replacement typically takes 20-40 minutes, depending on the type and door condition.
Are your lock replacements covered by warranty?
Yes! Every new lock we install comes with a 12-month parts and labour warranty for complete peace of mind.
Can you cut new keys for my lock on-site?
Absolutely. We offer on-site key cutting for new and existing locks. Fully tested and in guaranteed working order before we leave.