Call us free for help identifying your uPVC door lock on 0800 197 6885




Availability: In stock


We can have this item with you the very next business day by Fedex!

Not sure? Call us now on 0800 197 6885 to answer any questions!

No quibble returns policy if you accidentally order the wrong part!

Additional Information

Additional Information

SKU MPLSashJammer_W

Product Description


10 x Premium, Robust Sash Jammer

Upgrade your uPVC window and door security - Fit in 5 minutes!

By fitting Sash Jammers you can add additional security to your uPVC doors and windows. You can fit these strong, versatile Sash Jammers to doors or windows that open in or out. Easy to operate by just flicking the sash jammer over to lock, and back to unlock - it doesn't get much easier!

Advantages & Features

  • Easy to use - just flick on and off!
  • Easy to fit - just 5 minutes!
  • Recommended by insurance companies
  • Strong cast iron manufacture
  • Durable finish
  • Additional peace of mind

Every Sash Jammer MPL sell includes:

Sash Jammers Sash Jammer Packers Sash Jammer Button Paclers Sash Jammer Screws Sash Jammer Screw Caps

How many Sash Jammers should I fit?

When fitting these to customer's houses we usually work on the following guidelines:

  • Single uPVC Door - 2 Sash Jammers
  • Double uPVC Doors / French Doors - 4 Sash Jammers
  • Small Top Opening uPVC Window - 1 Sash Jammer
  • Large Side Opening uPVC Window - 2 Sash Jammers
  • Purchase by 3pm and we'll dispatch the very same day!

    In Stock! Buy It Now!

Sash Jammers from MPL

Buy from a trusted, reliable supplier with MPL

Company Number: 04867098

VAT Reg: 828341132

Payment Methods

We prefer Paypal payment to ensure your order is dispatched quickly, but we also accept cheque, postal order and credit/debit card. Cheques are subject to clearing before any goods are dispatched. To pay by credit or debit card please call our sales team on 01924 360444 - Monday to Friday, 8am to 5pm.

Can I collect my order?

Of course. Please make sure you let us know so that we don't dispatch your item by calling us on 01924 360444 or emailing us on Our trade counter is open from 8am to 5pm Monday to Friday and 9am to 12 noon on Saturday. We can be found at MPL, 29 Westgate End, Wakefield, WF2 9RG.

What if my order is wrong?

We comply fully with the Distance Selling Regulations. If your order is incorrect, faulty, or you have changed your mind please do not hesitate to let us know where we can cancel / refund or replace the order. Please make sure that you let us know you wish to return the goods by email within 7 days of delivery. You must ensure that you return any goods within 28 days. Unless the goods received are faulty / incorrect we regret that we cannot refund return postage - this must be met by the buyer.

Order Delivery

Where the items are in stock we endeavour to dispatch all orders the same day if received and paid for by 3pm, Monday to Friday. Any orders received throguhout the weekend will be dispatched on Monday. Where possible, unless you opt for an upgraded service at additional cost in order to keep our costs low, we send everything by 2nd Class Royal Mail post.

Who are MPL?

MPL are a large locksmithing and uPVC repair company based primarily in Wakefield, West Yorkshire. The MPL Group contains a number of companies - the largest being a specialist supplier of uPVC Door Locks. We stock over 250 different types of uPVC door locks, and replace many broken and obsolete mechanisms throughout the country on a day to day basis. We are a large stockist of locksmith supplies and uPVC spares including locksmith tools, uPVC door lock mechanisms, cylinders, mortice locks and much more. If you would like to talk to us about our full product range please call us on 01924 360444

Common Questions

uPVC Door Locks

How do you know which hand of mechanism to send me?
Unless otherwise stated all mechanisms are reversible usually by simply removing 1 screw. If you are unsure how to swap the handing when you receive the lock simply give us a call on 01924 360444 and we'll be able to help.

My door is XXXXmm tall, will this mechanism fit?
All of our full length mechanisms come oversized to suit any height of door - you simply chop the top and bottoms off to suit using a hacksaw.

uPVC Door Handles

Do I get both sides of the handle?
Yes, our handles are supplied as pairs (both an inside and outside). Our handles are also reversible / un-handed. Please note that this does not apply to tilt and turn handles in which case only 1 handle is supplied.

Do I get spindles and screws?
Yes, all of our handles are supplied complete with new spindles and screws.

Got another question? Call us on 01924 360444

Delivery & Returns


Our delivery charges are based on the weight and size of them item. We also now offer free delivery on orders over £100 (net).

Item Weight / Size Delivery Charge
Up to 5kg £4.90 - DPD Expresspak Next Working Day Service
£11.00 - DPD Expresspak Saturday Service
5kg to 10kg £5.50 - DPD Expresspak Next Working Day Service
£11.50 - DPD Expresspak Saturday Service
10kg to 20kg £6.50 - DPD Parcel Next Working Day Service
£12.50 - DPD Parcel Saturday Service
Oversized Parcels / Tubes (i.e Door Mechanisms) £10.75- Next Working Day Oversized Service or £26.00 - Saturday Oversized Parcel Service
£100 + Free Next Day Delivery

The above prices apply to mainland UK deliveries only and are exclusive of VAT.

Please note that we have a cut off time of 3pm for all next day deliveries

Delivery Surcharges - Highlands and Scottish Isles

Please note that for the below postcodes we can only offer a 2 - 3 Day service priced at £15.50 for items up to 20kg, or £32.50 for oversized items or items over 20kg

  • AB31 - AB56
  • FK18, FK19
  • HS1 - HS9
  • IV1 - IV56, IV63
  • KA27, KA28
  • KW1 - KW17
  • PA20 - PA78, PA87, PA88
  • PH17 - PH50
  • PO30 - PO41
  • ZE1 - ZE3

Overseas Delivery Charges

Please note that for the below areas we can only offer a 2 - 3 Day service priced at £15.50 for items up to 20kg, or £32.50 for oversized items or items over 20kg

  • Northern Ireland & ROI
  • Isle of Wight
  • Channel Islands
  • Isle of Man

If you have any questions regarding our delivery charges please do not hesitate to call us on 01924 360444.