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Window Surgery

Frequently Asked Questions about damaged handles and locks, misted or cracked windows

Some common faults you may find relating to broken or damaged door handles and window locks.

If you are experiencing any of the below problems it may be that a simple repair is required or if the handle, lock or hinges are worn due to age or excessive use it may be time for replacement parts.

What causes window handles to break?

Window handles are one of the most commonly used pieces of hardware in a home.

While they are built to withstand a lot of wear and tear, they are not indestructible.

There are several things that can cause a window handle to break, including age, improper installation, and excessive force.

Age is the most common reason for window handles to break.

Is it hard to replace cracked or smashed glass

When a window breaks, it can be hard to know what to do.

Many people think that they need to replace the entire window, but that is not always the case.

Cracked or smashed glass can usually be replaced without having to replace the entire window.

The process requires the correct measurements, like for like glass and the correct installation tools

My windows are draughty; do I need new ones?
Not necessarily. Draughts are often caused by worn-out hinges (friction stays) or perished rubber seals. By replacing the hinges or resealing the unit, we can make your windows close tightly again, eliminating gaps and cold air.
Can you replace cracked or smashed glass?
Yes. We provide a fast-response service for cracked or smashed double-glazed units to ensure your home remains safe, secure, and draught-free.
My window locks keep sticking

If you’re having trouble with your window locks sticking, you’re not alone.

Many people have this problem, and it can be frustrating.

There are a few things you can do to fix the problem. First, try cleaning the locks with a dry cloth.

If that doesn’t work, you may need to lubricate the locks with WD-40 or another lubricant. 

If none of this works perhaps there is more serious damage. Time to call the Window Surgery.

Door or window handle feels floppy

Again, a common fault. Over time the UPVC gearbox can start to wear as can the spring mechanism in the lock. That is the time to call a professional to investigate and repair/replace.

Why is there condensation inside my double glazing?

If you see moisture or “fog” between the two panes of glass, it means the perimeter seal of the window has failed (often called a “blown unit”). This allows moisture to enter the gap, which cannot be wiped away. Age, weathering, and poor initial installation are the most common causes.

Can you fix misted windows without replacing the whole frame?
Absolutely. At The Window Surgery, we specialise in replacing just the glass unit, not the entire frame. This is a much faster and more cost-effective way to restore your view and insulation without the mess or expense of a full window replacement.
Does misted glass affect my energy bills?
Yes. When a seal fails, the insulating gas (like Argon) escapes, and the window loses its thermal efficiency. Replacing the failed unit will help keep the heat in and your energy bills down.
My uPVC door won't lock when I lift the handle—do I need a new door?
No. This is usually caused by the door dropping out of alignment or a faulty “multi-point” locking gearbox. We can often realign the door or replace the internal locking mechanism for a fraction of the cost of a new door.
My window handle is floppy or won't turn. Can it be repaired?
Most likely. Over time, the internal springs or the gearbox in the handle can wear out. We stock a wide range of like-for-like handles and can usually replace them quickly to get your window secure and functional again.
Do you offer free quotes?
Yes! We provide free, no-obligation quotations for all repairs across Kent and Surrey. Simply call us at 07704 538285 or 0208 467 0889 to arrange a visit.
Do you guarantee your work

We do yes. Every replacement part comes with our standard 5-year guarantee.

Why Choose The Window Surgery?

30+ Years of Experience: We have the know-how to fix issues other companies might suggest replacing.

Cost-Effective: We only replace the parts that are broken, saving you hundreds (or thousands) on full replacements.

Local Expertise: Serving Bromley, Bexley, Croydon, and surrounding areas in Kent and Surrey.