Call 0800 088 6248

Cardiff · South Glamorgan

Window Repairs in Cardiff

Is your uPVC door in Cardiff dragging, sticking or hard to lock? Our glaziers can adjust it or replace the gearbox, hinges or cylinder.

  • CF10
  • CF11
  • CF24
  • Guide from £65

Get your free quote

Start with your postcode. A glazier will be in touch to talk through the job, and any call-out or boarding charge is explained before booking.

By sending this form you agree we can contact you about this enquiry. See our privacy policy for how we use your details.

No obligation. Prefer to talk? Call 0800 088 6248 or WhatsApp us.

Dropped uPVC door repair for homes and businesses in Cardiff

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.

Repairs usually take a single visit when the part can be identified and is carried on the van. Unusual or discontinued parts may need ordering. The glazier then returns to fit them, and in the meantime can usually leave the window or door secure and working.

A uPVC or composite door with a multipoint lock has one central gearbox that drives hooks, rollers or bolts along the door edge. A failed gearbox can leave the door stuck locked or unable to lock. In many cases only the gearbox needs replacing, not the whole strip.

Friction stays are the hinges on most uPVC and aluminium casement windows. When the sliding shoe wears or the arms bend, the window drops, binds or will not stay open. Replacements must match the stay's length, stack height and type, which the glazier measures before ordering.

What you get

  • Written quote fixing the price for parts and work
  • Removal of old parts and packaging
  • Survey and diagnosis of the faulty part
  • Adjustment of dropped or sticking doors and sashes
Glazier replacing a worn window hinge with a cordless drill

Cardiff at a glance

Postcodes covered
CF10, CF11, CF24 and the surrounding area, including Penarth, Caerphilly and Barry
Coast
Cardiff is about 3 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 Cardiff the midwinter sun reaches about 15° above the horizon at noon, with roughly 7.6 hours of daylight, rising to about 62° and 16.4 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
In flats and terraced homes, working on upper-floor windows may need to be done from inside. Security matters on street-facing doors, so anti-snap cylinders and secure handles are worth considering. Parking near the property can affect access.
Rules in Wales
Security rules for doors and windows differ between the UK nations. For replacement doors and windows in Wales, products tested to PAS 24 are a sensible benchmark.

Guide prices in Cardiff

Guide prices inc VAT for typical jobs. Remote and island locations are quoted by arrangement. Your written quote fixes the price after measuring.
Typical jobGuide 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 is an escape route, its replacement in Wales should give at least the same escape opening as before.

Options to choose between

Handles and window restrictors

New locking handles for windows and doors, and restrictors that limit how far upper-floor windows open.

Friction stay replacement

New hinges for uPVC and aluminium casement windows, matched for length and stack height, including egress stays for escape windows.

Anti-snap euro cylinder

A cylinder tested to resist snapping, such as TS 007 3-star or Sold Secure SS312 Diamond, cut to fit your door.

Window Repairs in Cardiff: questions

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.

How do I look after window and door hardware?

Clean dirt from tracks, keeps and hinges, then apply a light machine oil or silicone spray to moving parts once or twice a year. Keep frame drainage slots clear. Do not force handles that feel stiff, as this can break gearboxes. Report a dropping door or sticking handle early, as small adjustments are easier than replacing parts.

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.

Is my euro cylinder lock secure?

Many older euro cylinders can be snapped, which lets an intruder open the door. Look for markings on the cylinder face. A TS 007 3-star mark, or certification to Sold Secure SS312 Diamond, shows the cylinder has been tested to resist snapping. The glazier can check and replace the cylinder with one cut to fit your door.

Do you cover Cardiff for window repairs?

Yes. We can quote for window repairs across Cardiff and the surrounding South Glamorgan area, including postcode districts CF10, CF11 and CF24, and nearby Penarth, Caerphilly and Barry. 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 Cardiff

Clear guide prices, any charge explained before booking, and one point of contact for every glazing job.

CallGet a quote