Services Door Repairs & Lock Replacement

Door Repairs & Lock Replacement

At Drummond Security we stock a wide range security products to cater for every situation. As a family-run business with over fifty years’ experience we are experts in our field at changing door locks and replacing keys.

Our shop in Potters Bar provides a range of security products from door locks to key cutting and safes. Our engineers are happy to come out to your property in Hertfordshire and the surrounding area including Welwyn Garden City, Stevenage, Brookmans Park, Cuffley, Hatfield, Knebworth and St Albans.

Change Locks After Moving House

If you have recently moved into a new home, you might like to consider changing your door locks. You do not know who previously had a key to the property: estate agents, tradesmen, cleaners, neighbours, or if a key had previously been lost. Give yourself peace of mind by changing locks and check the whole house’s security at the same time.

Replace Door Locks After a Burglary

A burglary is an invasion of your home and your private space. It can leave you very upset, not just at the loss of your belongings but the loss of the feeling of security in your own home.

We can come out to your home to replace locks broken in a burglary and offer advice on improving the security of your whole property so that you can be reassured that your home is now fully protected.

As professional locksmiths, we have many years’ experience dealing with this sort of difficult circumstance.

Fit Bathroom Locks

We don’t just replace external locks, at Drummond Security we are also there for the smaller jobs such as fitting locks to bathroom and bedroom doors.

Improving Security in Your Home

If you are looking to improve security in your home Drummond Security can come to your property and assess your existing door and window locks. We are the only ABS Elite centre in Hertfordshire, and as such, we are able to offer the high security sold secure three star diamond ABS cylinder locks. Many standard Euro cylinder locks are no longer a challenge for today’s burglars, who can gain access in under a minute by simply snapping the lock. The Avocet ABS door lock provides the additional security that you need to keep your home and family safe. In addition to stocking the ABS cylinder we are also one one the only locksmiths in Hertfordshire that are able to cut the ABS keys, either while you wait or via telephone orders providing you have the security card that comes with the cylinder.

 Brisant Ultion

Brisant Secure have spent thousands of hours in design and research in developing an anti-snap cylinder that not only matches but actually exceeds all the requirements needed to pass the rigorous BSI testing. In addition to the TS007 3* accreditation, The Ultion has achieved the coveted MLA Sold Secure Diamond Standard which means that you can be assured that not only are you fitting a lock that burglars would find extremely hard to defeat but also most locksmiths would too.  

uPVC Door Lock Repairs

uPVC door locks can break if mistreated or badly maintained. We cover the whole of Hertfordshire repairing and replacing uPVC door locks where required. For more information see uPVC door lock repairs.

Whether you need to upgrade your security to conform with the latest insurance approved British Standard or you just need a simple toilet lock fitted we are the locksmiths to contact on 01707 644454


There is no quick answer to this question as it all depends on how the door is constructed. Wooden doors tend to be structurally stronger than uPVC doors but they only lock at one or two points, whereas uPVC doors utilise a multi point locking mechanism that locks in at least three different places simultaneously. In our opinion a good wooden door fitted a multi point mechanism and using a high quality anti-snap cylinder such as the Brisant Ultion would provide a high level of security.
Not only can we repair any of the moving parts (locks, hinges, letter box and door knockers) but we can also re-glaze/re-panel uPVC doors. Many customers have taken advantage of our cat flap installation or removal service too.

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 Office Location : 44 The Broadway, Darkes Lane, Potters Bar, Herts, EN6 2HW - 01707 644454

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