Don't Stop! 15 Things About Composite Door Crack Repair We're Sick Of Hearing

· 6 min read
Don't Stop! 15 Things About Composite Door Crack Repair We're Sick Of Hearing

How to Repair a Composite Door Crack

Composite doors are becoming more popular due to their durability, strength, and insulation properties. However, just like any other door, they are prone to damage.

If you hear creaking noises from your front door, it's likely that the weather seal is getting worn out. This is a simple fix.

Seal the Crack

Composite doors are a favorite choice for many homeowners thanks to their strength, low maintenance feel and contemporary appearance. However, like most doors they are prone to some problems that can arise in time. The positive side is that many of these issues can be easily resolved without the need for expensive repairs or replacements by an expert.

Most often, cracks form in a composite door due to physical damage or changes in humidity or temperature. Fortunately, these issues can be addressed with repair kits for composite doors and filler, if the crack is not too serious.

Tea staining can also be an issue for composite doors. This is often caused by high levels of moisture as well as exposure to sunlight and poor ventilation. In the majority of instances, a thorough clean using a professional composite door cleaner, such as Polytrol will remove the discolouration and restore the shine and appearance.

Then your composite door could start to show signs of draughts over time due to gaps between the door and frame or damaged gaskets and weather seals. This is a fairly simple issue that can be solved by removing the old gaskets and weather seals and replacing them with lubricant made of silicone.

Your composite door will also often experience drafts as a result of the natural expansion and contraction of its uPVC components during changing temperatures. In the majority of cases, this will not cause any major issues, but you will find that the door becomes difficult to close or open over time. If this is the case, it's worth checking your hinges to determine whether they've fallen off, in which case you can adjust the screws on the hinges.

You can also use wood spline or filler to repair large cracks on your composite door. This will need to be sanded once the spline or filler is dry to ensure that it is level with the rest of the surface of your door and then paint or stain the area to match the color of the panel.

Fill in the Crack

If you've noticed your composite door cracking, there are a few options you can take to fix the issue and prevent it from getting worse. One option is to apply wood filler. It dries hard and can be sanded away, leaving a smooth surface that isn't visible to the naked eye. Apply a small amount of the filler to the inside of the ridges, and then add more as required. Scrape off any excess filler off the surface. Then, allow the filler to completely dry before moving on to the next step.

Applying a small amount epoxy adhesive directly on the crack is another method to repair small cracks in your composite door. The glue expands as dries, filling the crack and creating an extremely strong bond. This is an easy and quick remedy to small cracks appearing on the surface of your composite doors.

For larger cracks, a more permanent fix could be needed. This could mean inserting a wood spline inside the split. This will not only repair the crack, but also strengthen the entire composite door section.


Weather conditions can have an impact on the durability and life span of your composite door. It is crucial to check it regularly and repair any damage as soon as you can. If you're worried about the state of your composite door, speak with a specialist to learn more about how you can keep it in good shape and safeguard it from damage in the future.

If your composite door squeaks or creaks, the hinges or locking mechanisms are not aligned properly. Try tightening the screws to align them by loosening them and then putting longer screws in their place. This will stop the squeaks and allow your composite door to lock and close properly again.

A frame that is too tight can result in squeaking and cracking. This can occur when the door is installed for the first time, but it can be caused by changes in temperature and humidity over time.  replacement lock for composite door www.repairmywindowsanddoors.co.uk  can be fixed by adding space to the frame with a frame shim.

Paint the Crack

When you walk through your front door and through other doors around the house every day, it's not uncommon for marks to begin to appear. As time passes scratches and dents can appear. However, with the proper preparation and tools, you can repair these cracks and marks.

Before you begin to repair a damaged composite door it is important to clean the area. Make use of a little sugar soap or another similar cleaner to clean any dirt, grime, or oil that may be stuck to the surface of your door. This will help the paint stick to the surface more easily. Sandpaper can be used to smooth any rough spots that could appear on your door. You don't want to go overboard with this however, you'll probably just require a very fine-grit sandpaper to smooth any areas that have some unevenness.

It's also a good idea to use a lubricant that is specifically designed for UPVC or composite doors in order to prevent the door from becoming stiff or difficult to open. These lubricants are available in a majority of hardware stores.

The next step is to fill the cracks with putty or filler. Filler should be the same color as your composite door or a lighter one to create shadows. Be sure to follow the instructions on the packaging carefully. Once the filler is dry you can sand the surface until it's flat.

You can then repaint your door with a color that is in keeping with the original style. It is best to apply two coats of paint making sure that each coat has time to dry completely before applying the next. You may also need to apply a primer based on the type you select. It's not necessary to use a primer, however it is advisable to do this in order to achieve the best paint job.

Refinish the Crack

Composite doors are made to withstand moisture, however prolonged exposure can cause them to expand or break. To prevent this, clean the surface regularly and avoid putting things on it. You can apply a waterproof sealant on the surface to keep it looking new. If you do notice that the door is swelling or cracked, it's essential to repair it as soon as possible. This will stop the issue from getting worse and will save you money in the long term.

Composite door cracks can be caused by a variety of causes, including the effects of climate change and expansion and contraction of materials inside the door or damage caused by fixtures or furniture. These issues are easy and inexpensively repaired, so it is worth taking the time to fix them properly.

If you're dealing with a tiny crack, it's a straightforward procedure of covering the crack and then applying a thin layer of putty on the inside ridges of the crack. This will fill in the gap and make it look like the crack never existed there.

The larger cracks can be more difficult to repair. Instead of using wood putty, you'll need to use a filler that is able to be sanded and compatible with the material your door is made from. Life Calk is a good quality product. Spread a small amount using a putty knife on the cracked area. Once the filler has dried, sand it to smooth the surface. This will ensure that the crack doesn't appear when the door is shut.

It's also important to remember to raise the handle before shutting the door. This will ensure the latch is in place, and provide more support to stop stretching. Finally, be sure to clean the area around the crack frequently to prevent dirt and grit from getting trapped and hindering the repairs you're making. If you follow these steps you can restore your composite door back to its former splendor in a matter of minutes.