Common UPVC Window Problems in Cannock (And When You Need a Repair Specialist)
UPVC windows are designed to be low‑maintenance, but they don’t last forever. Over time, seals wear, locks stiffen and double glazing can mist up, especially in older Cannock and Staffordshire homes. This guide walks through the most common problems, what they mean, and when it’s worth calling a local UPVC repair specialist instead of living with the issue
Draughts and cold spots around the frame
If you feel cold air around your windows even when they’re fully closed, you’re likely dealing with failed seals or alignment issues. This can make rooms feel chilly and push your heating bills up unnecessarily.
- Check for gaps in the rubber seals around the sash and frame.
- Run your hand slowly around the frame on a windy day to feel for cold air.
- Look for visible daylight where the sash meets the frame.
When to call a pro:
If new seals or basic adjustments don’t stop the draughts, the window sash may need re‑aligning or the locking mechanism may be worn. A repair visit can usually sort this without the cost of a full new window in most cases
Stiff, jammed or loose handles and locks
Handles that need a lot of force, won’t fully close, or feel wobbly are more than just annoying. Faulty locks and hinges can compromise your home’s security and may eventually stop the window opening or closing properly. Dirt, lack of lubrication and general wear are the usual culprits.
- Try gently cleaning around the hinges and locking points.
- Use a light lubricant on moving parts (never force a stiff handle).
- If the handle spins or won’t fully engage, stop using it.
When to call a pro:
If the handle still feels stiff, the key no longer works smoothly, or the window will not lock securely, it’s time for a proper lock or hinge replacement. A specialist can swap the hardware and re‑set the alignment so the window opens and locks smoothly again.
Misted or cloudy double glazing
Condensation or a cloudy “fog” between the two panes of glass is a classic sign of a failed double‑glazed unit. When the perimeter seal breaks down, moisture gets inside the sealed gap and creates permanent misting that you can’t wipe away.
- Check whether the condensation is inside the unit (between the panes) rather than on the room side.
- Look for water marks, streaks or a constant “fogged” appearance.
- Compare with other windows in the same room.
When to call a pro:
Once the sealed unit has failed, the only long‑term fix is replacing the glass unit itself. A repair specialist can measure up, supply a new double‑glazed unit and fit it into your existing UPVC frame so you don’t pay for a full new window.
Yellowing, tired or grubby UPVC frames
Over years of sun, rain and pollution, UPVC frames can yellow, stain or collect stubborn dirt that normal cleaning won’t touch. While this doesn’t always affect performance, it can drag down the look of the whole property.
- Try a gentle UPVC cleaner and a soft cloth (avoid harsh solvents).
- Check if rubber seals are perished or loose while you’re cleaning.
- Look for cracked trims, broken end caps or missing sealant.
When to call a pro:
If regular cleaning doesn’t improve the frames, or you notice perished seals and tired handles, a UPVC “makeover” can make a big visual difference. Deep cleaning, new seals and fresh handles can modernise the look without changing the frames themselves. Find out About our Makeovers
When a repair makes more sense than replacement
Full window replacement is not always necessary. Many common issues like draughts, failed locks and misted glass can be fixed by repairing or replacing individual parts. Repair work is often faster, less disruptive and significantly cheaper than new windows, especially if the frames are still structurally sound.
If you’re in Cannock, Hednesford, Rugeley, Burntwood or Stafford and you’ve spotted any of these issues, it’s worth getting a quick quote from a local UPVC repair specialist. A short visit can usually diagnose the cause and give you clear options before you commit to anything. Contact Us for Advice
If your UPVC windows are draughty, misted or just not working as they should, Smart UPVC Repairs can help. We offer fast, friendly repairs across Cannock and the surrounding Staffordshire areas, with no pushy sales – just honest advice and quality workmanship.
Call 07963 418702 or request a free quote through our contact form to get your windows and doors working properly again.