How to Secure a Patio Door

patio door security

Whilst the majority of break-ins are through the front door, your back doors cannot be ignored. Patio door security is equally important. Back doors and patio doors are quite often overlooked by home owners when it comes to addressing property security.

As a London based burglary repairs locksmith we know that when it comes down do it burglars will gain access any way they can. In some cases there are advantages to the intruder of using the rear entrance. The back door is often less overlooked by other properties or passersby.

UPVC Patio door Security Locks

A UPVC patio door will normally have a multipoint locking mechanism. When it comes to securing a UPVC patio door you need the lock to have the following;

  • Hooks
  • Deadbolts
  • A British standard cylinder

This will make your doors much more secure than the average household.

A qualified Locksmith will be able to assess the situation with your current lock and if necessary upgrade the mechanism to a higher spec product which will improve the security of your patio doors. This would ensure that your locks are in line with insurance standards (which we explain in detail in this post) as well as giving you peace of mind.

Timber Patio Door Security

A 5 lever deadlock is ideal, however additional key operated bolts from the inside will normally be adequate if the door doesn’t have one already.

Bolts should be fitted at the top and bottom of the door to meet insurance requirements. You might want to read more info on insurance approved locks.

Hinge bolts are recommended if a patio door is outward opening. These will stop someone unpinning your hinges from the outside. They can also be fitted on inward opening doors.

A Birmingham bar is most commonly found on the front door of a property, as recommended in our post on front door security tips. A patio security bar may be suitable in some cases and can provide a higher level of security at the rear of the property.

Sliding Patio Door Security

Sliding patio doors are becoming extremely popular, particularly on modern homes and apartments. It’s easy to see why;

  • they are easy to open and shut
  • they don’t cause an obstruction from either the inside or outside of the house

My concern is sliding glass door security!

The Best Way to Secure a Sliding Glass Door

Sliding glass door security locks required differ with each individual case, a security survey will confirm the best option for a particular property.

Additional key operated locks that bolt into the top and the bottom of the door are adequate.

If this isn’t possible we would recommend a key operated sliding patio door lock on the frame that bolts through to the door itself.

A sliding door security bar isn’t something that is available.

A trustworthy local locksmith (see our guide to choosing a reliable locksmith) will be able to advise you what is needed for your specific property. It may be the case that patio security doors are not necessary for your property. A security survey with a qualified Master Locksmith is usually free and will answer this and other questions you may have relating to security.

Having the right type of locks on a patio door is so important. It is scary to see how easily some of these doors can be opened. We see a lot of patio doors in Barnet and last week I was called to an emergency in High Barnet where the patio doors had been forced open at night while the family were asleep in the house. If you need to call a Barnet locksmith at night make sure you call one that operates a 24 hour service.

The house with the best security on the street is the house that the intruder will avoid. Professional burglars recognise both good and poor security and are most likely to choose the easiest option.

Ensure you have adequate security and if you’re unsure we would welcome the opportunity to answer any questions you may have on locks or security gates for the home or to arrange a free security survey.


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Master Locksmiths Association

Master Locksmiths Association



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