Custom Bespoke Composite Doors & Aluminium and UPVC Panels

Window Locks and Espags

Replacement Locks & Espags for uPVC & Double Glazed Windows

Struggling to find the right replacement window lock? We make it easy. At Double Glazing Parts & Spares, we stock a wide range of window locks and espagnolette (espag) mechanisms suitable for most uPVC, aluminium,& timber window systems – including many models that are now obsolete.

Our selection includes trusted brands such as Avocet, Chameleon, Elite, ERA, Everest, GU, Kenrick, Ideal, MACO, Mila, Nico, ProLinea, Schuco, Securistyle, Spilka, Trident, and Yale, along with a variety of universal window lock options that fit a wide range of systems.

If you’re replacing an older or discontinued window lock, we can help. With over 25 years of experience, we can often identify and supply hard-to-find or obsolete locking mechanisms – simply contact our expert team with the details or a photo of the part you need. Whether you're tackling a repair or a full window refurbishment, our wide product range and reliable support ensure you get the right lock – first time.

Can't find what you're looking for? Email our team at assist@dgpsuk.co.uk

Replacement uPVC window espag locks from brands like Yale, ERA, Avocet and more

What to Check and Measure When Replacing a Window Espag Lock
When choosing a replacement espagnolette (espag) rod, it’s important to measure the following:

  1. Rail length: Full length of the rod, end to end.
  2. Screw hole centres: Most espag rods use the industry standard of 43mm.
  3. Cam height: Height of the projecting locking cam (often a mushroom cam), interchangeable with roller cams.
  4. Backset: Distance from the front face of the gearbox to the centre of the handle’s screw holes.
  5. Rail width: Width of the rod side to side, usually 16mm.

These details will help you find the correct replacement quickly and accurately.

Roto TSL Inline Espag with Twin Mushroom Cams

Roto TSL Outward Opening Casement Window Locking SystemThe Roto TSL is a high-security outward openi..

£13.19 Ex Tax: £10.99

£13.19 Ex Tax: £10.99

Schuco Replacement Tilt and Turn Window Gearbox (23mm)

Schuco Replacement Tilt and Turn Window Gearbox (23mm)23mm refers to the distance between the 2 fixi..

£61.21 Ex Tax: £51.01

£61.21 Ex Tax: £51.01

Schuco Replacement Tilt and Turn Window Gearbox (43mm)

Schuco Replacement Tilt and Turn Window Gearbox (43mm)43mm refers to the distance between the 2 fixi..

£92.08 Ex Tax: £76.73

£92.08 Ex Tax: £76.73

SI Siegenia Window Keep (0860)

The SI Siegenia Window Keep (0860) is for use on timber windows, uPVC windows, and aluminum windows...

£4.91 Ex Tax: £4.09

£4.91 Ex Tax: £4.09

SPILKA Espagnolette Window Lock Kit

Upgrade your window security with the Replacement SPILKA Espagnolette Window Lock, designed for easy..

£60.00 Ex Tax: £50.00

£60.00 Ex Tax: £50.00

SPILKA Replacement Centre Gearbox 7mm

SPILKA Replacement Centre Gearbox 7mm (8mm also available)Ensure the smooth operation of your window..

£19.19 Ex Tax: £15.99

£19.19 Ex Tax: £15.99

SPILKA Replacement Centre Gearbox 8mm

SPILKA Replacement Centre Gearbox 8mm (7mm also available)Description: Upgrade your window mechanism..

£19.19 Ex Tax: £15.99

£19.19 Ex Tax: £15.99

SPILKA Replacement Shootbolt Rods

SPILKA Replacement Shootbolt Rods..

£22.20 Ex Tax: £18.50

£22.20 Ex Tax: £18.50

Tongue Reversible Window Lock Universal Tongue Keep

Tongue Reversible Window Lock Universal Tongue Keep1 x Tongue Reversible Window Lock Universal Tongu..

£4.33 Ex Tax: £3.61

£4.33 Ex Tax: £3.61

Trident Espag - Hook & Cam Window Locking System

A secure espagnolette window lock designed as a quick and easy to install solution for all types of ..

£34.20 Ex Tax: £28.50

£34.20 Ex Tax: £28.50

Universal Window Keep (ERKUNIM)

The Universal Window Keep (ERKUNIM) (WKMUNIT) is for use on uPVC windows, timber windows, and alumin..

£3.60 Ex Tax: £3.00

£3.60 Ex Tax: £3.00

Universal Window Lock Espagnolette

The Universal Window Lock Espagnolette system is designed to fit standard and reduced depth Eurogroo..

£7.68 Ex Tax: £6.40

£7.68 Ex Tax: £6.40

Wrap Around Gearing for Large Top Hung Casements

MACO MK2 Wrap Around Gearing Kit for Large Top Hung Casement WindowsUpgrade the security and perform..

£58.76 Ex Tax: £48.97

£58.76 Ex Tax: £48.97

Yale Flush Sash System Extension Rods

Yale High-Security Shootbolt Extension for Flush Sash Windows – With Night Vent Function Enhance you..

£3.35 Ex Tax: £2.79

£3.35 Ex Tax: £2.79

Yale Rapide - Security Window Locking System

The Yale Rapide blade window lock offers greater lock engagement for additional security as it conne..

£21.54 Ex Tax: £17.95

£21.54 Ex Tax: £17.95

AVOCET Urail Espag Rod 16mm Faceplate & 8mm Cam With 20mm Backset

This Avocet U-rail fitting espag rod has a 16mm faceplate with 8mm eccentric cams for smooth operati..

£8.20 Ex Tax: £6.83

£8.20 Ex Tax: £6.83

CHAMELEON Repair Espag Rod With Adjustable Backset And Cam

This repair espag rod is supplied with 8 mushroom cams. It is marked with croppable positions to ma..

£13.36 Ex Tax: £11.13

£13.36 Ex Tax: £11.13

Chameleon Universal All-In-One Aluminium Peg Espag Rod

This all-in-one peg or blade driven espag rod by Chameleon is a unique replacement system, it is sup..

£20.38 Ex Tax: £16.98

£20.38 Ex Tax: £16.98

ELITE Fixed Twin Espag Rod 8mm Cam 20mm Backset

This high-security espagnolette system offers robust twin cam operation and is designed to meet the ..

£11.22 Ex Tax: £9.35

£11.22 Ex Tax: £9.35

GU Espag Rod With Icam Technology 20mm

The GU SECURY casement locking system with ICAM technology offers flexibility to window system manuf..

£7.98 Ex Tax: £6.65

£7.98 Ex Tax: £6.65

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