Window Hinges

Window hinges, also known as friction stays, are vital window parts for smooth operation in uPVC window installations. They allow casement windows to open and close reliably while providing adjustable friction to hold the sash in position. If you’re dealing with replacement window parts, understanding window hinges helps determine if they’re the issue behind sticking or sagging sashes.

As a local Sutton service with over 10 years’ experience and public liability insurance, Window Repairs Sutton supplies and fits these components for uPVC window repairs. Explore our full range of window parts for more options.

What It Is

Window hinges are metal mechanisms fixed to the edge of a casement window sash and the frame. They support the weight of the sash, enabling it to pivot outwards or tilt inwards where applicable.

Most commonly, these are friction hinges or friction stays in uPVC window parts. They include adjustable screws to control opening resistance, preventing the sash from slamming shut or dropping.

Unlike basic butt hinges, casement window hinges incorporate a stay arm for controlled movement and security.

How To Identify It

Spot window hinges on the side of your uPVC casement window where the sash meets the frame. Look for a long metal arm (the stay) extending from the sash edge to a pivot point on the frame.

Key identifiers include:

• Slotted screw heads for friction adjustment.
• Galvanised or stainless steel finish to resist corrosion.
• Markings like brand names (e.g., Maco, Roto) or stack heights etched on the body.

Open the window fully to reveal the hinge fully extended. If it’s a friction hinge, it holds position midway without support.

Compatibility Factors

Window hinges suit uPVC casement windows primarily, excluding sash, sliding, tilt-and-turn, or inward-opening types. Always match to your window’s design—standard outwards-opening uPVC frames.

Consider:

• Side or top-hung configuration (left, right, or top).
• Material compatibility: uPVC frames only; not wooden windows.
• Brand specifics: Common in systems like Rehau, Veka, or Smart.

Mismatched hinges lead to poor fit and alignment issues. Our DBS-checked technicians verify compatibility during assessments.

Measurements That Matter

Precise sizing ensures hinge replacement success. Key dimensions include:

• Stack height: Vertical measurement from frame edge to hinge base (common sizes: 300mm, 350mm, 400mm).
• Stay length: Overall arm length, matching sash height.
• Handing: Left or right orientation when viewed from inside.
• Screw hole centres: To align with existing frame drillings.

Measure with the window closed using a tape from the hinge edge upwards. Note any wear on pivot points, as this affects new replacement window parts.

Common Naming Confusion

Window hinges often get mixed up with friction stays—they’re the same component. People confuse them with handles (which operate locks) or keeps (frame latches).

Other mix-ups:

• Espagnolette rods: Multi-point locking bars, not hinges.
• Butt hinges: Simple pivots for doors, unsuitable for windows.
• Offset hinges: Rare in uPVC, used for restricted openings.

Search for “casement window hinges” or “friction hinges” to avoid generic listings. This clarity aids sourcing correct uPVC window parts.

Symptoms It Can Cause

Worn window hinges manifest in several ways, often linked to broken window hinge symptoms.

Common signs include:

• Sash dropping or misalignment (sash alignment issues).
• Window hard to open/close or sticks midway.
• Excessive rattling or wind-induced slamming.
• Friction fails, causing sash to swing freely.

These problems worsen over time, allowing draughts or security risks. Early identification prevents escalation to full frame distortion.

Related Repairs

Hinge replacement restores smooth operation and addresses sash alignment. Our service covers window hinge / friction stay replacement, including toe and heel adjustments for optimal performance.

We handle:

• Removal of seized hinges.
• Fitting new friction hinges with custom friction settings.
• Draught proofing integration.

For detailed booking, visit our window hinge friction stay replacement page. Contact us at 020 8138 0796 or [email protected] for a no-obligation quote.

FAQs

What are the most common types of window hinges for uPVC windows?

Friction hinges or stays dominate uPVC window parts, with stack heights from 250mm to 450mm. They suit casement styles, offering adjustable tension.

How do I know if my window hinges need replacing?

Look for sagging sashes, binding during operation, or loose pivot points. Persistent issues despite cleaning signal hinge replacement time.

Can I replace window hinges myself?

DIY suits minor adjustments, but full replacement window parts requires tools for safe removal. Professionals ensure alignment and weather sealing.

Do window hinges fit all uPVC windows?

No—compatibility hinges on frame system, handing, and size. We exclude sash or sliding windows; confirm via photos or site visit.

How long do window hinges last?

With proper maintenance, 10-15 years in moderate climates. Coastal Sutton exposure accelerates wear from salt air.

Are your technicians qualified for hinge repairs?

Yes, our team has 10+ years’ experience, DBS checked, and public liability insured for uPVC window repairs in Sutton.

For more window parts or to discuss window hinges, get in touch via /contact/.