Window locks for UPVC

Window locks for UPVC

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UK Leading Supplier of Window Locks for Double Glazing

  • ✅ Gearboxes available from many suppliers such as Saracen, Maco, Mila and more
  • ✅ UPVC window gearboxes are the main lock part – usually replaced on their own, with rods rarely needed.
  • ✅ Full length window locks are older but still popular – check backset, length and offset for the right fit.
Not sure which size? Our Window Lock Guide makes it simple – check it out here.

The main two types of window lock handle that go on double glazing click below to get information on which lock you need and how it will fit your window.

? Window Lock Info — quick guide

Gearboxes for UPVC Windows

UPVC window gearboxes are the central part of a 3-piece lock and can usually be replaced on their own. Rods or shootbolts rarely need changing, but we stock them if required. The lock is secured with retaining screws and the handle bolts, which must be removed to take it out.

Full Length Window Locks

Older but still popular. Some espag locks are obsolete, though alternatives are available with minor adjustment. Check backset, overall length, and whether it’s offset or inline. See the measuring guide.

Keeps & Screws

All the extras to fit your espag lock or gearbox. Missing screws/keeps can slow the job down. If you’re replacing an obsolete lock, you may need extra keeps/screws to make the alternative fit. Need help? Call 01204 652211.

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  • Saracen FM Window Lock Gearbox for UPVC Windows - 05058 or 05060

    Saracen FM Window Lock Gearbox for UPVC Windows - 05058 or 05060

    Saracen

    £9.42 Inc. VAT
    £7.85 Ex. VAT
    The Saracen FM deadlock gearboxes are often found with the code 05060 or 05058 on the shootbolt extension sockets. Click Here for Video 3D Drawing available here click drawing above     Gearbox mechanism only. Shootbolt extension...
    £9.42 Inc. VAT
    £7.85 Ex. VAT
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  • Saracen Deadlock Window Lock Gearbox for UPVC Windows

    Saracen Deadlock Window Lock Gearbox for UPVC Windows

    Saracen

    £9.36 Inc. VAT
    £7.80 Ex. VAT
    Saracen Deadlock Gearbox for upvc windows. Please note: this is for the Gearbox Mechanism Only - shootbolts can be bought separately by clicking here   3d Drawing available here Deadlock mechanism systems consist of shootbolts and a unique...
    £9.36 Inc. VAT
    £7.80 Ex. VAT
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  • Offset Window Locking Mechanisms by Maco 20mm Backset - longer length

    Offset Window Locking Mechanisms by Maco

    Maco

    £12.31 Inc. VAT
    £10.26 Ex. VAT
    MACO 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
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    £12.31 Inc. VAT
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  • Inline Window Espag by Maco 20mm Backset

    Inline Window Espag by Maco

    Maco

    £13.68 Inc. VAT
    £11.40 Ex. VAT
    Inline 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
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  • Trojan Stallion 2 Window Locking Shoot Bolt Mechanism

    Trojan Stallion 2 Window Locking Shoot Bolt Mechanism

    Trojan

    £15.44 Inc. VAT
    £12.87 Ex. VAT
    Trojan 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
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  • Inline Window Espag by Maco 20mm Backset - longer length

    Inline Window Espag by Maco - longer length

    Maco

    £19.44 Inc. VAT
    £16.20 Ex. VAT
    INLINE 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
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  • Saracen Shootbolt Rods for Deadlock Gearbox

    Saracen Shootbolt Rods for Deadlock Gearbox

    Saracen

    £9.24 Inc. VAT
    £7.70 Ex. VAT
    These are the shootbolt rods to suit the Saracen deadlock gearbox system.   CLICK HERE FOR THE ACTUAL GEARBOX  Shootbolts only, supplied as a pair   (Gearboxes can be bought separately). Deadlock systems consist of shootbolts and a...
    £9.24 Inc. VAT
    £7.70 Ex. VAT
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  • Offset Window Locking Mechanisms by Maco 20mm Backset - longer length

    Offset Window Locking Mechanisms by Maco - longer length

    Maco

    £16.63 Inc. VAT
    £13.86 Ex. VAT
    MACO 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
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  • Saracen Roller Window Lock Gearbox for UPVC Windows

    Saracen Roller Window Lock Gearbox for UPVC Windows

    Saracen

    £13.94 Inc. VAT
    £11.62 Ex. VAT
    The Saracen Roller lock mechanism is often found in older type double glazing windows with shootbolt technology.The rod in this gearbox mechanism has a long thread all the way up the shaft. Gearbox Mechanism Only (rods and end guides can be bought...
    £13.94 Inc. VAT
    £11.62 Ex. VAT
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  • 19mm self tapping screws, pack of 10

    19mm Self-tapping Super Screws - pack of 10

    Handles & Hinges

    £1.40 Inc. VAT
    £1.17 Ex. VAT
    19mm self-tapping screws, ideal for fitting double glazing window hinges and letterboxes Pack of 10 screws
    £1.40 Inc. VAT
    £1.17 Ex. VAT
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    £1.40 Inc. VAT
    £1.17 Ex. VAT
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  • Vitawin Vita Espag Window Lock

    Vitawin Vita Espag Window Lock

    Vitawin

    £8.00 Inc. VAT
    £6.67 Ex. VAT
    Vitawin Espag Window lock. The Vitawin espag window lock is a great replacment for all of the Vitawin espag range. They are available in 20mm and 22mm backsets. PLEASE NOTE: Due to postage contraints the 800mm, 1000mm and 1200mm can only be sent via...
    £8.00 Inc. VAT
    £6.67 Ex. VAT
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    £8.00 Inc. VAT
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  • Coldseal/ProLinea Shootbolt Espag Window Locking System with 8mm Mushrooms

    Coldseal/ProLinea Shootbolt Espag Window Locking System with 8mm Mushrooms

    Mila

    £12.23 Inc. VAT
    £10.19 Ex. VAT
    Mila ProLinea Shootbolt Espag This locking mechanism is called the ProLinea Series 8.  It is often used as a replacement for the Coldseal window lock that was fitted in Coldseal double glazed windows many years ago.   20mm or 22mm...
    £12.23 Inc. VAT
    £10.19 Ex. VAT
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