Espag type window mechanisms
These are an older style of UPVC window lock but still incredibly popular today. While a few models have been made obsolete over time, we can usually offer a close match that’ll work with just a touch of adjustment.
Getting the right size is key: You’ll need to know the backset, overall length, and whether your lock is inline or offset. Click here to view our step-by-step measuring guide – it’ll walk you through exactly what to measure so you get it right first time.
Matching things up properly makes fitting easier and ensures the new lock lines up clean with your window handle. No bodging required. We stock mechanisms from top brands like Maco, Avocet, Coldseal, and Trojan – ready to drop in or tweak as needed.
Still not sure? Give us a bell and we’ll help you sort it before you’ve even opened your toolbox.
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Offset Window Locking Mechanisms by Maco
Maco
£12.31 Inc. VAT£10.26 Ex. VATMACO offset mushroom bolt espagnolettes for outward opening double glazing windows incorporate all the benefits of safety and security expected of modern window technology in today´s environment. Available with 20mm or 25mm backset...£12.31 Inc. VAT£10.26 Ex. VAT -
Offset Window Locking Mechanisms by Maco - longer length
Maco
£16.63 Inc. VAT£13.86 Ex. VATMACO offset mushroom bolt espagnolettes for outward opening double glazing windows incorporate all the benefits of safety and security expected of modern window technology in today´s environment. PLEASE NOTE: Due to postage contraints...£16.63 Inc. VAT£13.86 Ex. VAT -
Inline Window Espag by Maco
Maco
£13.68 Inc. VAT£11.40 Ex. VATInline espag locking system for use in upvc windows MACO mushroom bolt espagnolettes window locking mechanism for outward opening double glazing windows incorporate all the benefits of safety and security expected of modern window technology...£13.68 Inc. VAT£11.40 Ex. VAT -
Inline Window Espag by Maco - longer length
Maco
£19.44 Inc. VAT£16.20 Ex. VATINLINE ESPAG LOCKING SYSTEM FOR USE IN UPVC WINDOWS - Longer Lengths MACO mushroom bolt espagnolettes window locking mechanism for outward opening double glazing windows incorporate all the benefits of safety and security expected of modern...£19.44 Inc. VAT£16.20 Ex. VAT -
R.A.I.L. Reverse Action INLINE Window Espag by Maco
Maco
£13.81 Inc. VAT£11.51 Ex. VATRAIL Reverse Action In-line Locking Security Espagnolette In-line security espagnolette locking system. Available with 20mm or 22mm backset (Click here if you are unsure how to measure the backset) 200mm Inline - 20 or 22mm...£13.81 Inc. VAT£11.51 Ex. VAT -
R.A.I.L. Reverse Action INLINE Window Espag by Maco - Longer Lengths
Maco
£19.18 Inc. VAT£15.98 Ex. VATRAIL Reverse Action In-line Locking Security Espagnolette by MACO In-line security espagnolette locking system.PLEASE NOTE: Due to postage contraints the 800mm, 1000mm and 1200mm can only be sent via courier and not through the normal mail. Available...£19.18 Inc. VAT£15.98 Ex. VAT -
Trojan Stallion 2 Window Locking Shoot Bolt Mechanism
Trojan
£15.44 Inc. VAT£12.87 Ex. VATTrojan Stallion 2 double glazing window locking shoot bolt mechanism - Fast-fit telescopic design. Features Quick-fit telescopic shootbolt for eurogroove systems. Unique clip-in positioning in eurogroove - fits into existing...£15.44 Inc. VAT£12.87 Ex. VAT -
WMS Avocet U-Rail Window Locking Mechanisms
Avocet
£18.79 Inc. VAT£15.66 Ex. VATWMS Avocet U-Rail Window Locking Mechanisms Available with 20mm or 25mm backset 310mm 400mm 600mm PLEASE NOTE: Due to postage contraints the 800mm, 1000mm, 1200mm can only be sent via courier and not through the normal mail - click here to...£18.79 Inc. VAT£15.66 Ex. VAT -
WMS Avocet U-Rail Window Locking Mechanisms - Longer Lengths
Avocet
£24.29 Inc. VAT£20.24 Ex. VATWMS Avocet U-Rail Window Locking Mechanisms Available with 20mm or 25mm backset PLEASE NOTE: Due to postage contraints the 800mm, 1000mm, 1200mm can only be sent via courier and not through the normal mail. 800mm 1000mm 1200mm - No Longer...£24.29 Inc. VAT£20.24 Ex. VAT -
Coldseal Tallon Replacement Window Lock KIT - 400mm
Maco
£17.39 Inc. VAT£14.49 Ex. VATThis kit is a REPLACEMENT/WORK AROUND for the Tallon window lock that was fitted by Coldseal windows. The original lock is no longer made and this kit has been put together through trial and error by our own Service Engineer and will fit most Coldseal...£17.39 Inc. VAT£14.49 Ex. VAT -
Coldseal Tallon Replacement Window Lock KIT - 600mm
Maco
£21.52 Inc. VAT£17.93 Ex. VATThis kit is a REPLACEMENT / WORK AROUND for the Tallon window lock that was fitted by Coldseal windows. The original lock is no longer made and this kit has been put together through trial and error by our own Service Engineer and will fit...£21.52 Inc. VAT£17.93 Ex. VAT -
Coldseal Tallon Replacement Window Lock KIT - 800mm
Maco
£24.26 Inc. VAT£20.22 Ex. VATThis kit is a REPLACEMENT / WORK AROUND for the Tallon window lock that was fitted by Coldseal windows. The original lock is no longer made and this kit has been put together through trial and error by our own Service Engineer and will fit most Coldseal...£24.26 Inc. VAT£20.22 Ex. VAT