Sash Jammers | Home Secure™ Extra Security Locks for uPVC Doors & Windows

Enhance your window and door security with the Sash Jammer.

The Home Secure Sash Jammer has been built with quality and durability in mind. Manufactured from a high grade metal and finished with a resilient white coating. We are now offering excellent value discounts on this product, 100% satisfaction guaranteed or your money back!

• Easy to fit and operate, used on both uPVC windows and doors for extra security

• 3 different sized button spacers and packers provided to ensure a stylish fit onto different profiles

• uPVC Screws provided for use with reinforced windows

• We recommend using Jack Nuts (supplied separately) to gain a secure fit onto un-reinforced window frames

• You won't know if frame is re-inforced until you drill a pilot hole (2mm drill bit recommended) and feel tension or lack of tension
  

Fitting Advice

We provide access to online fitting instructions and installation video.

View our guide on the Sash Jammer

How many to use?

1 Sash Jammer - Small Window or Letterbox

2 Sash Jammers - Large Window / Single Door (Top & Bottom Fitting)

4 Sash Jammers - French/ Patio Doors (2 Top, 2 Bottom, on each door)

Key Features

• Prevents sash/window or door from being forced open by intruders.

• Designed for uPVC frames, but compatible with timber and composite.

• Simple to fit — DIY friendly and affordable.

• Ideal for ground floor or basement access points.

• Visual deterrent: a visible jammer makes your property less attractive to burglars.

🏠 Ideal For

• uPVC doors and windows needing extra reinforcement

• Rental properties, ground-floor flats, or homes with easy-access points

• Homeowners looking for a reliable, budget-friendly security improvement

• Adding extra peace of mind to existing locks and handles

⚙️ Technical Details

• Brand: Home Secure™

• Type: Sash jammer / extra security lock

• Finish: White

• Material: Metal with powder-coated finish

• Suitable For: uPVC, timber, and composite doors or windows

• Included: Fixings and installation guide

• Installation: Surface-mounted with screws (included)

💬 FAQ

❓ What are sash jammers and how do they work?

A sash jammer is a small lever-operated device that clamps the window or door sash against its frame. When engaged, it prevents forced entry even if the main handle or lock is compromised.

❓ Can these sash jammer locks fit uPVC doors and windows?

Yes — these sash jammers are designed for uPVC frames but can also be used on composite and timber doors. They’re especially effective for French doors, patio doors, and ground-floor windows.

❓ How many sash jammers should I install per door or window?

For single doors or small windows, one at the handle side is usually enough. For larger doors (like double French doors), fit one at the top and one at the bottom for maximum protection.

❓ Are sash jammers easy to fit?

Yes! They’re designed for simple DIY installation. Just screw into the frame, align the arm with the sash, and tighten — all fixings are included.

❓ Do sash jammers help prevent break-ins?

Absolutely — they act as a visible deterrent and a physical barrier. Even if a burglar bypasses your main lock, the engaged sash jammer stops the door or window from opening.

🛒 Shop the Home Secure™ Window & Door Security Range

Upgrade your home’s protection with more practical, easy-fit solutions from Home Secure™.

• Window & Door Security Collection