What Is an Espag Window Handle?
Handles & Hinges UPVC Maintenance Ltd is a UK specialist in UPVC window and door parts. An espag (espagnolette) window handle is the common handle used on modern double-glazed UPVC windows. It has a square metal spindle on the back that turns the window’s lock gearbox to engage mushroom/roller cams around the sash.
How it works
- The handle turns a square spindle inside the sash.
- That spindle drives a gearbox on the espagnolette strip.
- The gearbox moves cams/rollers that pull the sash tight against the frame keeps.
Why espag handles are popular
- Secure — multi-point locking with mushroom/roller cams.
- Neat & universal — most are inline, so left/right windows can use the same handle.
- Easy to replace — two screws and a standard 7 mm spindle in most cases.
- Lockable — many have push-button or key-locking for extra safety.
Identifying an espag handle
- Look at the back — there’s a square metal spindle (usually 7 mm).
- Count the screws — two fixing screws in-line, hidden by caps on the front.
- Check shape — inline (straight) or cranked (offset). Inline suits left or right; cranked is handed.
Key measurements when buying
- Spindle length — from the underside of the backplate to the tip. Common lengths vary; match what you remove.
- Fixing centres — distance between the two screw holes (most are standard, but measure to be sure).
- Handing — most replacements are inline (non-handed). If yours is cranked, order the correct left/right.
- Locking — choose locking or non-locking to suit your needs/insurance requirements.
- Finish — white, chrome/satin, gold/brass, black, etc.
Espag vs. Cockspur (quick compare)
| Feature | Espag handle | Cockspur handle |
|---|---|---|
| How it fastens | Square spindle drives lock gearbox | Curved spur hooks over a frame wedge |
| Fixings | Two screws in-line | Two or three screws on backplate |
| Main measurement | Spindle length (7 mm square) | Stack height “A” (base → underside of spur) |
| Handing | Usually inline (non-handed) | Left or right hand |
FAQ
Do all espag handles use a 7 mm spindle? Yes, 7 mm square is the standard for UPVC espag gearboxes.
How do I pick spindle length? Measure your old handle from backplate underside to spindle tip and match it; if in doubt, choose the same length.
My handle is offset (cranked). Can I fit an inline one? Often yes, but a cranked handle can give better knuckle clearance on some frames—match the original style if space is tight.
Are espag handles lockable? Many are; choose key-locking for child safety or insurance preferences.