You can improve your home security in multiple ways, including a small and inexpensive piece of equipment – sash jammers! But what are sash jammers and are sash jammers any good? Will they make my home more secure? What are the best sash jammers? Read on to find out!
What is a Sash Jammer?
Sash jammers are small devices that can improve the security of your uPVC windows and doors. They attach near the window or door frame and pivot over the door or window securing it into place, offering another level of security that can help prevent forced entry.
Are Sash Jammers Any Good?
Sash jammers are effective in improving your home security as they add an extra boundary through which a burglar must force through when trying to break into a home. This will add time to the burglar’s efforts and will give you more time to call the police and get to a safe place if you’re home.
If you’re not home some burglars may even give up trying to break in as they aim to be in and out of your home in as little time as possible to avoid getting caught! They fit most types of uPVC windows and doors and are widely available at a cheap price.
Why Do We Recommend Sash Jammers?
There are several reasons we would use sash jammers, whether for extra window security or door security or as a temporary measure to secure a property until the correct parts can be ordered and fitted.
Pros
- They work on inward and outward opening doors
- They’re cheap and easy to supply and fit
- There are various versions such as locking or non-locking
- They also come in several different finishes, usually black, brown, or white
Cons
- Can only be used from the inside of a home
- Security could be at risk if enough aren’t fitted for the size of the window or door needed.
- Damage to the door may occur if the sash jammers aren’t fitted correctly
- Some use sash jammers as a substitute for a suitable locking device on the window or door, but this should not be the only means of security and a main more complex lock is still required.
How Can I Make My uPVC Windows or Doors More Secure?
You can make your uPVC windows more secure by getting an approved Locksmith to fit a sash jammer. Another way you can improve your window security is to upgrade the locks to anti-snap locks which prevent the burglar from being able to pick the lock or damage it and can force the window open.
What Are The Best Sash Jammers for uPVC Doors and Windows?
Sash jammers are available cheaply and ‘does what it says on the tin’. If you’re looking to buy the best of the best then look at the sash jammers that bolt through the frame and are lockable from the outside, of course, these will be more expensive than your regular sash jammer.
Any brand of sash jammer, whether Screwfix sash jammers, B&Q sash jammers, or Wickes sash jammers will all be of the same quality.
Can I Install Sash Jammer Myself?
Yes, it is relatively easy to fit a sash jammer yourself. However, if you are upgrading your doors and windows due to security concerns, perhaps you have recently been burgled then we recommend you call a professional Locksmith. Not only can our NGCL Locksmiths fit your sash jammer correctly they can also give you advice on your home security and fit more secure locks if need be.

How Many Sash Jammers Do I Need?
Depending on your door or window type and size you will typically need between 1 and 4 sash jammers.
How Many Sash Jammers Per Window?
1 x Sash jammer for a small window
How Many Sash Jammers For Doors?
2 x Sash jammer for a single door. One at the top and one at the bottom of the door.
4 x Sash jammer for patio or French doors. Two at the top and two at the bottom of each side of the door.
What Are Sash Jammer Packers?
There are two kinds of sash jammer packers. The first kind is long and rectangular usually the size of the base of the sash jammer. These sash Jammer packers are secured on the back of the sash jammer in between it and the door/window to provide a secure fit for the jammer and to ensure it can pass over the uPVC frame without issue to lock correctly.
The other kind of sash jammer packers are much smaller and go on the swinging end of the sash jammer. This allows the sash jammer to be swung over the frame without causing it to be scratched.
Sash jammer packers aren’t always needed; it depends on the depth of the window or door against the frame’s depth and the size of the gap between the sash jammer and the frame.
How Much Are Sash Jammers?
Sash jammers are a great budget option for upgrading your home security as buying the sash jammer yourself will be around £10.
Sash Jammers Should Only Be Used As Extras!
Please remember that sash jammers are to be used in conjunction with your secure, British Standard approved locks. Using a sash jammer without additional locks will not only leave your home vulnerable to break-ins it will also invalidate your home insurance.
As a Locksmith company, we mainly used sash jammers to secure a door or window when the engineer doesn’t have the lock or part to hand in their van. This temporarily secures the property until the correct part is ordered and fitted.
Need An NGCL Locksmith?
If you need a trusted local Locksmith to upgrade your home security then give us a call on 0808 164 2928 or visit our website to find a reputable Locksmith near you!
Our local Locksmith will be able to easily fit a sash jammer for extra security or as an interim to secure your property if you are waiting for another part. If you need a Locksmith, whether to add any additional home security or in an emergency such as if you were locked out of house, or if you’ve just moved in and want to change your locks for security reasons, then get in touch today. Our Locksmiths offer a wide range of services, so contact us today at 0808 164 2928 to book a Locksmith to help with your home security!