Larne · County Antrim
Window Repairs in Larne
Is your uPVC door in Larne dragging, sticking or hard to lock? Our glaziers can adjust it or replace the gearbox, hinges or cylinder.
- BT40
- Guide from £65
Dropped uPVC door repair in Larne: what to know
Most modern windows use an espagnolette lock: a metal bar in the sash edge that moves locking cams into keeps on the frame when the handle turns. If the handle feels stiff or spins freely, the gearbox or bar may be worn, rather than the handle itself.
Window restrictors limit how far a window opens, which can help reduce the risk of falls from upper floors. Many restrictors can be released by an adult, so the window can still be opened fully for escape or cleaning. They can usually be fitted to existing windows.
The cost of a window or door repair depends on the part needed, whether it is a standard or discontinued design, how easy it is to identify the make, the number of windows or doors, and access. Discontinued hardware sometimes needs a modern equivalent and adaptation to fit.
Euro cylinders are the key barrels in most uPVC and composite doors. Standard cylinders can be vulnerable to lock snapping. Cylinders tested to TS 007 with a 3-star rating, or certified to Sold Secure SS312 Diamond, are designed to resist this type of attack.
What a typical job includes
- Survey and diagnosis of the faulty part
- Written quote fixing the price for parts and work
- Matched replacement hinges, stays, handles or locks
- Adjustment of dropped or sticking doors and sashes

Working in Larne
- Postcodes covered
- BT40 and the surrounding area, including Carrickfergus, Ballyclare and Newtownabbey
- Coast
- Larne is about 1 km from the coast or a tidal estuary, so salt air and wind-driven rain are worth planning for. Near the coast, salt air corrodes window and door hardware more quickly, especially hinges, keeps and lock mechanisms. Stainless steel friction stays and corrosion-resistant hardware last longer, and regular cleaning and lubrication help keep moving parts free.
- Daylight and sun
- In Larne the midwinter sun reaches about 12° above the horizon at noon, with roughly 6.9 hours of daylight, rising to about 59° and 17.1 hours in midsummer. Windows and doors on sunny elevations expand and contract more with temperature, which can make them stick in summer and catch the frame. Dark-coloured doors absorb more heat, so hinge adjustment may be needed after hot spells.
- Access and setting
- Older rural homes may have timber casements, sash windows or doors with discontinued hardware, so parts may need matching or adapting. Exposed sites put more strain on hinges and seals, and outbuildings often benefit from upgraded locks.
- Rules in Northern Ireland
- For replacement doors and windows in Northern Ireland, PAS 24 products are a sensible choice for security.
Guide prices in Larne
| Typical job | Guide price inc VAT |
|---|---|
| Replace a pair of window hinges | £95 – £145 |
| Replace a window locking mechanism | £125 – £195 |
| Replace a door multipoint lock | £195 – £325 |
| Fit an anti-snap cylinder | £65 – £115 |
Get a guide price for your size
Where a window provides an escape route, its replacement in Northern Ireland should give at least the same escape opening as before.
Options to choose between
Friction stay replacement
New hinges for uPVC and aluminium casement windows, matched for length and stack height, including egress stays for escape windows.
Multipoint door lock
A new gearbox or full locking strip for uPVC and composite doors that stick, will not lock or have a loose handle.
Handles and window restrictors
New locking handles for windows and doors, and restrictors that limit how far upper-floor windows open.
Window Repairs in Larne: questions
Can you repair a uPVC window that will not close properly?
Usually, yes. Windows that will not close are most often caused by worn or bent friction stays, a sash that has dropped, or a locking cam catching the keep. The glazier identifies the fault, then replaces the hinges, adjusts the keeps or repacks the sash so it closes and locks properly again, keeping the existing frame and glass.
What does it cost to replace a window hinge or door lock?
The cost depends on the part, whether it is standard or discontinued, how many windows or doors need work, and access. Gearboxes and full multipoint strips cost more than a single handle or cylinder. See the guide prices for typical repairs, then get a written quote once the glazier has identified the exact part needed.
Why has my uPVC door dropped and can it be fixed?
Doors drop when hinges wear or loosen, or when the glass or panel slips inside the door and stops supporting it square. Signs include dragging on the threshold and needing to lift the handle hard to lock. Most dropped doors can be fixed by adjusting the hinges and repacking the glass or panel, without replacing the door.
My door handle spins and the door will not lock. What is wrong?
A handle that spins without moving the lock usually means the gearbox inside the door has failed, or the spindle connecting handle and gearbox has broken. The gearbox can often be replaced on its own. If the door is stuck locked, the glazier can usually open it without damaging the frame before fitting the new part.
Do you cover Larne for window repairs?
Yes. We can quote for window repairs across Larne and the surrounding County Antrim area, including postcode districts BT40, and nearby Carrickfergus, Ballyclare and Newtownabbey. Start with your postcode on the quote form and a glazier will talk through the job, explain any charge before booking and give you a written quote.
Get a written quote in Larne
Clear guide prices, any charge explained before booking, and one point of contact for every glazing job.