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🔐 Lock in safety, unlock peace of mind.
This 4 Pack Sash Jammer Blocker set features durable, powder-coated solid zinc alloy locks designed for PVC/uPVC and wood windows and doors. Easy to install with just 2 screws each, these locks enhance home security by preventing unauthorized entry and protecting children and pets. Ideal for vertical sliding, single-hung, and double-hung windows, they combine robust performance with sleek white aesthetics for lasting peace of mind.
| ASIN | B08ML9N52S |
| Batteries Required? | No |
| Batteries included? | No |
| Best Sellers Rank | 3,079 in DIY & Tools ( See Top 100 in DIY & Tools ) 4 in Window Locks & Latches |
| Colour | White |
| Customer Reviews | 4.5 4.5 out of 5 stars (1,207) |
| Date First Available | 3 Nov. 2020 |
| Included Components | 4 Pack Sash Jammer Blocker |
| Item Package Quantity | 1 |
| Item Weight | 250 g |
| Item model number | Sandiyago |
| Manufacturer | Sandiyago |
| Product Dimensions | 2 x 2 x 1.99 cm; 250 g |
W**N
These are great!
These are very easy to fit and very easy to use. Just 2 screws per sash jammer. These add extra security to your home which also gives you extra peace of mind. The quality is really good. Very strong too. The performance of this product is great. I will be buying more of these for my mum who lives on her own. Great value for money and a great service from the seller. Thank you 😊.
L**Y
Great added home security
Great price , great item. Fitted very easily and quickly on my French doors for extra security. Nicely made and look good. Highly recommended
J**E
Security
Great for extra security.
L**K
Solid, cheap extra layer of security
Product is simple and efficient. Very cost effective way to add sturdy security to doors and windows
C**Y
Good quality
Delivered quickly. Seem very sturdy would recommed.
P**E
Very happy
A lot sturdier than I expected and the lever is nice and tight, very easy to install. Not sure how well they will fair against someone trying to get through my door, but I'm at least hoping if anyone tried they will make enough noise to wake me up.
C**E
Some okay, some really stiff
Comes as a pack of 4. 2 were usable on doors we open and close several times a day. 2 were really stiff, to the point I wouldn’t actually feel safe using them on a main exit door. I guess they would be fine if you didn’t really use that door/window but not the point. The 2 that were okay, one was fit into a UPVC door frame and if my toddler tried to open the door against it locked, I’m not sure it would actually hold up, so going to have to use no more nails underneath it and refix it. The opening a wooden frame is okay.
A**R
Secure and easy to instal
Needed to urgently secure a upvc back door where the lock had broken. These were easy to fit with self tapping screws (no need to drill) and provided a great, secure solution. How task took less than 20 minutes. Would definitely recommend and would buy again if needed elsewhere. The only downside is, of course, you can now only unlock the door from the inside so will eventually have to get it replaced but at least it’s secure for now.
Trustpilot
1 day ago
2 months ago