energy efficiency

A The Complete Guide To Window Repairs From Start To Finish

7 min read

UPVC Window Repairs

Upvc windows are energy efficient and help reduce heating costs. As they get older, however, issues may develop that need to be addressed. This can be due to damaged handles, hinges, Window Doctor or locks.

DIY enthusiasts can fix wooden windows relatively easily. It can also be much less expensive than a brand new replacement window.


Cracks and fractures in uPVC windows could be a serious issue. Unrepaired windows can cause water intrusion, less effective barriers to cold weather, and can cause structural damage. It is essential to locate an experienced local repair or builder who specializes in the repair of uPVC frames and who has the experience, skills and tools needed to produce the best results. This will ensure that the crack is repaired before it worsens and you don’t have to replace your window glass or unit.

There are a variety of home solutions that can be utilized to repair small cracks in the glass. Superglue and masking tape are two of the most popular solutions to hold glass damaged in position for a short duration. For deeper cracks, tape may require to be extended on both sides.

Alternatively, two-part epoxy can be used to fix broken or cracked glass. Hardware stores typically sell this product for around $10. Make sure your work area is properly prepared before mixing the epoxy. Also, ensure that you have all the equipment needed to complete the task.

If your upper or lower sash is difficult to raise it’s most likely because the cords that connect the sash weights are damaged. This is a simple fix that can be accomplished with a ladder and a flathead screwdriver. Replacing a damaged drip cap is a second repair that can be done at home. Rot-free drip caps are readily available at many home centers and can be nailed or caulked in place with ease. Lastly, if you have a double glazing or triple-pane window, make certain to ensure that one of the panes is not broken. The reason is because the gasses in the space between the windows are responsible for enhancing the efficiency of the window. This must not escape.

Water Leaks

If your uPVC window is leaking, this can ruin your interior and result in costly repairs. Water leaks can also damage the structure of your home and lead to the growth of mold. It is important to fix any problems caused by leaking windows right away to minimize damage.

One common cause of window leaks is the damage to the sealant around the frame. Silicone caulking can restore the seal to its original state and stop leakage. It is also essential to look for gaps and cracks around the frame as well as in the stone or brick walls surrounding your windows.

A blocked drainage hole or an issue with flashing are also common causes of leaking windows. Make sure that the drainage holes have not been blocked or blocked, especially after heavy rain. It is also important to look at the window’s flashing to ensure that it is well-sealed.

It is also important to make sure that your drip cap isn’t damaged or rotten. A damaged or damaged drip cap can let water in the window from above, causing damage to the structure of your home. Replacing drip caps isn’t a complicated job, and it’s generally a simple process of purchasing an entirely new one and putting it in the right spot.

A professional can also test your windows for watertightness. They can utilize a special tool to measure the water-tightness and strength of your windows and make sure they are in line with industry standards. If your windows don’t pass the test, you will have to replace them. This is a costly fix but it’s worth it for the comfort and security of your family.


If your windows do not close properly, it could result in a myriad of issues, such as condensation, drafts and a rise in your energy bills. It can also be a sign that the windows weren’t well installed or the sealant has stopped working. There are a few things you can do to resolve the problem.

In order to repair your window properly it is necessary to set up a workspace with ample natural light. Start by laying down newspaper or a blanket to shield the flooring from any splinters or drips from the windows while you work.

You will also want to use a white cloth that has been submerged in a solution containing water and detergent. This will prevent any stains of color appearing on your windows. Mark the the hinge channel on your uPVC window when you are ready to begin working. Unscrew the channel and fill the screw holes inside the frame using epoxy (for uPVC frames) or wood filler. Make sure you smooth the hole before it sets.

Install the hinge channel once the holes are filled. Be sure to place it on the window jamb and drill the screw holes about a quarter-inch away from the original locations.

Next, measure the length of the spindle that protrudes from underside of the handle. You can then order an alternative online or bring the old one to a hardware store for matching. Then, pull out the setscrew that was on the operator shaft and smooth it out so that the set screw will secure itself to the shaft (photo). Now, your uPVC windows should close smoothly.

Broken Hinges

If your uPVC window hinges are damaged or aren’t functioning properly then you’ll find it difficult to open or close the window. This could cause a security problem and prevent your home from staying cool or warm. It is easy to get a new hinge for your uPVC window. However, it’s important to ensure you have the right type of hinge for your windows.

The hinges need to be the same size to fit in the frame of the window. The most popular type of hinge used in windows made of uPVC is an 18mm or 15mm UPVC window hinge. There are also specialised hinges for wooden frames. Getting the correct type of window hinge for your windows will aid in avoiding typical issues that homeowners have with their windows, like not closing properly.

There are several reasons why the hinges on your windows have become stiff or loose. The hinges may not be sufficiently tightened. You can test this by using a screwdriver to locate the friction screw at the end of the hinge and loosen it. Then, you can adjust it by twisting it in any direction until you achieve the desired result.

Contact Preston Glass Fix if your UPVC Window Doctor‘s hinges don’t work correctly. We can offer an immediate solution. Our technicians will inspect the condition of your hinges and offer you suggestions on the best solution. We can replace window hinges, retension them or install new locking mechanisms to ensure that your UPVC windows are safe and secure.

Locks that aren’t working

UPVC window mechanisms and locks are an essential component of security for your home. They make it difficult to open a window without breaking into the house. It can be a frustrating experience when a lock malfunctions, but you don’t need to replace the entire window.

It is often a minor issue that could have been easily prevented with regular maintenance. We recommend that you have your uPVC window serviced regularly as part of our yearly maintenance program to minimize the chance of any problems.

Modern uPVC windows are equipped with espagnolette locks. They work by pushing the nose of the handle over the block with a wedge, and then turning it to close the lock. They are very efficient in keeping the window closed, however over time, they could begin to fail if they are not properly maintained – we recommend using WD-40 for lubrication a couple of times per year.

If you notice your uPVC window isn’t opening and closing as smoothly as it used to or if the lock doesn’t work correctly, it could be an issue with the locking gearboxes inside the frame. The process of removing this gearbox can be difficult as it requires the removing of seals around the frame and the removal of the handle (be cautious not to damage the seals).

A locksmith that specializes in UPVC repairs has the knowledge to quickly identify the issue and will then be able to replace the failed locking gearbox with a exact replacement. This is a quick and simple repair that can save you hundreds of pounds by cutting out the need to purchase new windows.

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