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Grantham · Lincolnshire

Window Repairs in Grantham

Windows in Grantham that will not open, close or lock can usually be repaired by replacing the hinge, handle or lock rather than the whole window.

  • NG31
  • Guide from £65

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Door lock repair in Grantham: what to know

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.

Draught seals and gaskets compress and shrink over time, letting in cold air and noise. Replacing them with a matching profile restores the seal without changing the window. The glazier checks the gasket type, as frames from different makers often use different profiles.

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.

A door that drags on the threshold, catches the frame or needs lifting to lock has usually dropped. Doors can often be adjusted using the hinges and by repacking the glass or panel so the door sits square again. Adjustment is usually tried before replacing parts.

What a typical job includes

  • Check that windows and doors lock and seal
  • Removal of old parts and packaging
  • Survey and diagnosis of the faulty part
  • Written quote fixing the price for parts and work
Glazier replacing a worn window hinge with a cordless drill

Local details for Grantham

Postcodes covered
NG31 and the surrounding area, including Sleaford, Newark-on-Trent and Melton Mowbray
Coast
Grantham is well inland, around 44 km from the nearest coast, so salt exposure is not usually a factor.
Daylight and sun
In Grantham the midwinter sun reaches about 14° above the horizon at noon, with roughly 7.3 hours of daylight, rising to about 60° and 16.7 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 England
Approved Document Q applies to new homes in England, where doors and windows are expected to meet PAS 24 or an equivalent standard. It does not apply to replacements in existing homes, but PAS 24 products are still a sensible choice.

Guide prices in Grantham

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

Approved Document B covers escape windows. Where an existing window is an escape route, typically in first-floor bedrooms, its replacement should give at least the same escape opening as before.

Options to choose between

Espagnolette lock and gearbox

Replacement locking bar or gearbox for windows that will not lock, have a spinning handle or feel stiff to operate.

Gaskets and draught seals

Replacement seals matched to the frame profile to stop draughts, rattles and noise around opening windows and doors.

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 Grantham: questions

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.

How can I stop draughts from my existing windows?

Draughts often come from worn gaskets, a sash that has dropped or keeps that no longer pull the sash tight. Replacing the gaskets with a matching profile and adjusting the keeps or hinges usually fixes the problem. If draughts come through the frame or glass seals, the glazier will say what else needs attention.

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 replacement window hinges need to allow escape in a fire?

In England, upper-floor bedroom windows are often relied on as escape windows. Replacement hinges should not reduce the opening below what the window gave before. Egress friction stays open wider than standard stays to give a clear opening, so the glazier checks the room and window before choosing the hinge type.

Do you cover Grantham for window repairs?

Yes. We can quote for window repairs across Grantham and the surrounding Lincolnshire area, including postcode districts NG31, and nearby Sleaford, Newark-on-Trent and Melton Mowbray. 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 Grantham

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

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