A pair of silver UPVC window hinges with friction stays, displayed against a white background.
Diagram of UPVC window hinges (friction stays) with labeled dimensions showing standard opening, width (18mm), and stack height (13mm).
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A pair of silver UPVC window hinges with friction stays, displayed against a white background.Diagram of UPVC window hinges (friction stays) with labeled dimensions showing standard opening, width (18mm), and stack height (13mm).

UPVC Window Hinges Friction Stays. Standard Opening. 12" – Replacement uPVC Window Hinge

AvocetSKU: HS3956
Price:
£6.99

Key benefits

  • Standard opening friction stay - stiffens with age replace as a pair
  • Sized 8" to 24" - match your existing hinge length
  • Direct replacement - fits most uPVC casement windows

100% SECURE PAYMENTS

HASSLE FREE RETURNS

FULLY TRACKED DELIVERY

Description

These hinges are designed to stay in any open position by means of friction and are common on top-hung and side-hung windows of uPVC or aluminium.

Sold in pairs (1 left, 1 right). Supplied with 13mm (standard) stack height. Hinge packers can be purchased separately to increase depth to 17mm.

Features & Benefits

* Enhanced weather sealing - enclosed end caps, asymmetric location system and profiled vent are all help 
* Long life expectancy - uses Thermoplastic components and tested to 30,000 cycles 
* Smooth operation - patented lipped slider 
* Easy friction adjustment - without metal-to-metal contact 

Common symptoms of failing friction hinges

* Difficulty opening and closing the window? 
* Window not closing tightly into frame? 
* Draughts through closed window despite gaskets in place? 
* Window fails to stay in position when partially open?

If you experience any of the above then you should consider repairing or replacing the hinges, before the situation gets worse and also becomes a security risk.

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Frequently Asked Questions

12-inch uPVC window friction stays are made to support and guide the opening and closing movement of casement windows. They help ensure reliable window operation whilst maintaining stability and alignment in standard uPVC double glazed window systems.

These standard opening friction stays are suitable for a wide range of side-hung and top-hung uPVC casement windows. To ensure the correct fit, it is best to compare the size and specifications with your current window hinges before purchasing.

You may need new friction stays if your window becomes difficult to operate, does not close properly, creates draughts, drops at the corner, or shows signs of corrosion and wear around the hinges.

Yes, many homeowners can replace uPVC window friction stays using standard household tools. If you need assistance identifying the right replacement hinge, please visit our Contact Us page.

Installing new friction stays can help improve window function, increase security, minimise draughts, and maintain proper window alignment, helping your uPVC windows perform more effectively for longer.

About the Brand - Avocet ABS

Avocet ABS is one of the UK’s leading names in high-security door hardware, trusted by homeowners, locksmiths, and security professionals for its proven protection against modern burglary techniques. Known for its ABS 3-Star Euro Cylinder, Avocet has built a reputation for developing advanced, police-approved security solutions that combine innovative engineering with long-lasting durability.

Every Avocet ABS product is designed to exceed the highest industry standards, offering anti-snap, anti-pick, and anti-drill protection to keep homes secure. The brand’s commitment to quality and continuous improvement has made it a top choice for upgrading uPVC, composite, and wooden doors with reliable, insurance-approved security.

Choosing Avocet ABS means choosing trusted technology, exceptional build quality, and maximum home protection—making it a standout brand for homeowners who demand the best in door security.

Explore Avocet ABS