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...£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...£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£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...£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.£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...£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£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£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£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...£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£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...£24.26 Inc. VAT£20.22 Ex. VAT