15 Things You Don't Know About Composite Door Crack Repair

15 Things You Don't Know About Composite Door Crack Repair

How to Repair a Cracked Composite Door

Although composite doors are incredibly robust, they can still be susceptible to cracks that are caused by general wear and tear. Thankfully, these cracks are generally simple to repair.

All you need to do is use an adhesive for plastic and a uPVC friendly cleaning agent (HG uPVC powerful cleaner is a great choice). You will also require a fine or medium grit Sandpaper. The first step is to clean the crack.

Identifying the Crack

Composite doors are one of the most popular kinds of front doors available in the market due to their design and strength. Like any other door, composite doors can develop issues in time. Luckily, most of problems can be solved without calling experts.

If you hear a crackling sound every when you open or shut your door made of composite, it could be an issue with the frame. This is especially true if the crack is visible on the outside of the frame. In this case, it is possible that the door and frame weren't properly installed at first. It's worth contacting the professional installer who fitted your composite door, since they will be able to assist in solving the problem.

Incorrect alignment of hinges and latches is another common problem with composite doors. This can be caused by excessive wear and tear or excessive use, but can also be due to changes in temperature and moisture. Fortunately, this is another issue that can be solved by simply changing the screws.

It's possible that the door frame is too small for the composite door. This can happen when the frame isn't installed properly by a professional installer. If the frame is too small, it will not be strong enough to support the weight of the door. This could lead to cracking, warping and creaking.

Another reason that could cause a crack in a composite door is weather damage. Weather damage is usually caused by a damaged or damaged weather seal. This can let debris and rain get into your home, together with cold air. A damaged or missing weather seal can be easily repaired by replacing it with a new one that is designed for composite doors.

Regular cleaning is the most essential aspect of maintaining the composite front door. This will stop the surface from being scratched or marked, and it can help avoid any stains from appearing. It's recommended that you clean your composite door at least once a week with soapy water to prevent hardware pitting, and you should also lubricate the hinges every year.

Cleaning the Crack

Composite doors are a popular option for home owners thanks to their durability and low maintenance feel. However, they may face many common issues over time, including warping and cracking. Most of these problems can be solved without professional help.

A composite door is made from a solid core of timber to provide the strength and stability needed and uPVC to weatherproof it against the elements. The door is then covered with glass reinforced plastic (GRP) outer skin which is available in a variety of styles and finishes, including woodgrain effects and a smooth contemporary finish. The combination of these two materials makes composite doors extremely durable and resistant to moisture and abrasions.

The best method to ensure that your composite door remains looking good is to keep it dry and clean. You can keep your composite door looking nice by cleaning it regularly with gentle cleanser and an easy-to-clean cloth. However,  composite door replacement lock  should also clean the door after exposure to sun or rain. Avoid using products that are abrasive since they can cause damage to the surface. Always make sure to use clean water after you've finished.

Regularly cleaning the hinges and locks of your composite door is another simple way to maintain its appearance. A lubricant specifically specially designed specifically for uPVC doors and locks is ideal however be careful not to use too much as too much grease can cause the lock to become stuck or stop working altogether.

A final thing that you should do to keep your composite door is to periodically inspect the weather stripping of your door to ensure that it's in good shape and working correctly. This will reduce drafts and save money on heating bills.

Although composite doors of today are highly robust and resistant to a variety of common problems, they can still be damaged by sudden temperature fluctuations or by general wear and tear. Fortunately, it's not necessary to call in experts to repair these issues, and even large cracks can be repaired using a bit of plastic filler and sandpaper.

Filling the Crack

Composite doors are strong but are susceptible to cracks due to physical damage, such as scratches or impacts. They can also crack because of changes in humidity or temperature. These cracks are often easily repaired with an easy DIY technique.


First, you must identify the cause of the crack. It could be as simple as crackling noise that you hear when you close or open the door. However, it could be more serious, such as a visible crack or damage to the external glass panel. If the issue is serious you'll need to contact a professional.

The next step is to apply filler to the damaged area. Plastic fillers are available that are designed to be used on uPVC or composite materials. They typically consist of liquid and powder which need to be mixed and applied immediately as they become very hard. Use a putty blade to apply the filler, and make sure you apply it all the way to the other side.

After the filler has been applied, you'll have to sand the surface for smoothness. To do this, you can employ an electric sander, or a light sanding machine. After you've sanded the area, you'll have to apply a clear coat of varnish or polyurethane to protect the door and filler.

If the cracking sound is coming from the hinges of the door, you'll have to grease them to prevent them from slipping or becoming stiff with time. This will ensure the integrity of the hinges and assist to extend their life.

You can keep your composite door looking new by regularly sanding it, using a touch-up pen to fix any scratches, and reapplying paint in the same color to ensure an even appearance. Regular lubrication of any moving parts will ensure they operate smoothly and improve the durability of your composite door. This is a simple step that is often forgotten, but it can make a huge difference to the functionality of your door and appearance.

Sanding the Crack

A composite door is strong and durable, but it's not immune to the odd creak or crack. It's likely to encounter these problems with the frame, which can occur due to many reasons, including weathering and general wear and tear. If you're worried that your doors made of composite may be showing signs of aging, you can take some simple steps to fix the problem.

The first thing you have to do is clean the area around the crack and its surrounding surface. This will help to stop dirt from becoming mixed with your later repair work. To remove any grime or grit, use a uPVC safe cleaner that is fragrance-free like HG uPVC Powerful Cleaning Agent, which is available on Amazon. Dry the area completely before proceeding.

Once the crack is clean after which you can begin the repair process for your composite door. Depending on if your door is painted, you can choose between putty and filler in this step. If it's painted, go for a wood filler which can be sanded down after it has set. After you've applied the chosen filler, leave it to set. Sanding down the compound will help to smooth out the surface and make it look a little more natural.

Before you begin sanding you'll need to think about how large the crack is. A larger split will require more than filler or putty to fix. If you notice evidence of this on your door, you may need to install a wooden spline for a more durable solution.

It is recommended to place the door frame and hinges correctly to avoid a split. It is also essential to lubricate all moving parts including hinges, with the lubricant specifically designed for uPVC or composite materials. This will reduce friction, and will keep your composite door operating smoothly for many years.