Start with a safe, simple check
A window that will not close is frustrating, especially when it affects security, draughts or weather. Start by leaving the opening in the safest position you can reach without force. Keep children and pets away from the moving sash and any damaged glass. Do not lean out of an upper-floor window, remove glazing beads or take the handle apart to investigate.
Look at the symptom rather than trying to diagnose the part. Does the sash catch at one corner? Does the handle turn but fail to pull the window tight? Does the opening close until the last few millimetres? Is the handle stiff, loose or spinning? Note whether the fault happens every time or only after the window has been opened for a while. Those details are more useful than a guessed name for the mechanism.
If the window cannot lock, say so when you make contact. A window that is open but usable is a different conversation from one that cannot be secured. Key Window Care does not promise an emergency response, so describe the security position clearly and follow any immediate safety advice you receive.
- Do not force a stiff handle or lift the sash with excessive pressure.
- Keep cracked or loose glass away from people and pets.
- Record whether the window is open, shut, partly open and able to lock.
Common reasons a window will not close
The visible problem can come from more than one component. A hinge may be worn or out of adjustment, allowing the sash to drop so that it catches on the frame. A handle or locking mechanism may be worn, leaving the window apparently shut but not pulled into its seals. Debris or a damaged seal can also affect the final movement. The frame itself may have moved, or a previous repair may have left a part poorly aligned.
A window that rubs at the top or handle side can point to alignment or hinge movement. A window that closes but will not lock can involve the handle, keeps or a multipoint mechanism. If the handle will not move at all, do not force it: the mechanism may be under pressure because the sash is not sitting squarely. A misted sealed unit is a separate glazing fault; it may need glass work but it does not automatically explain a closing problem.
Key Window Care assesses existing windows and doors for repair. Confirmed services include window repairs, handles and hinges, and locks and mechanisms. The suitable route depends on the frame, hardware and condition found on the opening. A repair-led assessment helps avoid ordering a part that looks similar but is incompatible.
Checks you can make without dismantling anything
With the window stationary, look for an obvious object in the track, a loose visible screw or a seal that has pulled away. Do not remove the seal or try to adjust a hinge. If the handle moves, notice whether it reaches its normal position and whether the locking points appear to engage. Stop as soon as resistance increases. Repeatedly trying to force the handle can damage the mechanism and make the eventual repair harder.
Open the window only as far as it normally travels, if it is safe to do so. Watch whether one corner moves ahead of the other and whether the sash drops when the handle is released. For a tilt-and-turn window, do not try to operate two positions at once; if the handle has become stuck between positions, keep the sash supported and describe exactly where it stopped.
Do not use oil, expanding foam or household sealant as a shortcut. Lubricant in the wrong place can attract grit, while sealant can hide a drainage or alignment issue. A clear photograph of the whole opening and the handle side gives a repairer more useful evidence than a temporary alteration.
- Photograph the whole frame, then the handle and the area where it catches.
- Describe the handle position and whether the key or lock engages.
- Stop if the sash is unsupported, the glass is damaged or resistance increases.
Send the information that makes a quote useful
Send a straight-on photograph of the whole window, a close-up of the handle and a picture of the corner or edge where it catches. Include your postcode, a contact number and whether the opening can be secured. Say if the fault is on a ground or upper floor and mention any access restriction. Do not crop out the frame: the surrounding details can show whether the issue is alignment, hardware or glazing related.
Key Window Care is based in Bristol and covers Bristol, Bath and Weston-super-Mare within a working radius of around 35 miles, subject to the postcode. There is no call-out fee. Steven can discuss the likely repair from the description and photographs, but a final recommendation may still depend on inspecting the opening and confirming compatible parts.
The confirmed service is repair-led. If the existing frame is suitable, the work may focus on adjustment, a hinge, handle or locking mechanism. If another condition makes the requested repair unsuitable, that should be explained before work is agreed. You do not need to decide which part to order before making contact.
What to ask before the repair starts
Ask which fault the recommendation addresses and whether the work is an adjustment, a replacement part or both. Check what is included in the quote, including fitting, testing and any return visit. If a mechanism or hinge has to be identified on site, ask whether the recommendation depends on confirming its dimensions or fixing pattern.
A good repair should leave the window operating without unusual force. Ask how to use the opening while the work is being arranged and what to do if the same symptom returns. Key Window Care confirms a 10-year guarantee on new double-glazed units; that guarantee is specific to new units and does not automatically apply to every hardware repair. Ask what cover applies to your job.
After the work, operate the handle gently as instructed. Check that the window closes, locks and releases normally. If it catches again, stop forcing it and contact the repairer with a short description and photograph. Keeping the quote and guarantee details together makes that follow-up easier.
Technical reference
For general consumer information about glazing and replacement windows, the Glass and Glazing Federation and FENSA publish homeowner guidance. Their information is a general reference; the suitable repair for your opening still depends on its condition, dimensions and hardware.
