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The Top 6 Composite Door Problems + How to Solve Them

Composite doors have become the most popular option among homeowners for several reasons. They are durable, reliable, practical, and quite attractive. However, does that mean composite doors are perfect? Not at all. Just like any other kind of door (timber, uPVC, or wooden doors), this type requires some care and maintenance to be kept in excellent condition. Today, we are revealing the top 6 composite door problems and giving you hints on how to solve them.

1. Swelling/Warping

Any type of door, not just composite, is prone to swelling during the summer. On a hot summer day, when the sun shines directly into your composite door, it will start expanding and you’ll maybe have difficulties closing the door properly.

In case you’ve already had your composite door installed, make sure to always pull the handle up when closing the door. This way, you’ll prevent further warping and fully engage the locks so no one can break through the door.

On the other hand, if you still haven’t, but plan on installing a composite door, consult a professional before making a purchase. They should measure the door properly before installing it. The main reason for swelling is going for the oversized door. Also, keep this on top of your mind if your home is south-facing.

2. Sticky Locks

If your locks are sticky, you’ll be unable to shut off the doors completely, which could be a security issue. To prevent this, use silicone or graphite-based lubricants on your composite doors every 6 months to ensure the locks are functioning properly. Do not use oil and grease-based lubricants because they can make your locks even stickier.

3. Poor Drainage in a Door Track

Drainage systems within the frame of every composite door keep your home nice and dry. However, once the system gets blocked with either dust or debris, excess rainwater will start overflowing into your premises. Make sure to flush and clean drainage slots every 6 months using a screwdriver or any other tool with a narrow tip.

4. Worn Weather Seals/Gaskets

Similarly to the composite door problem we’ve elaborated on in the previous section, rainwater can leak into your home through worn or improperly positioned weather seals/gaskets. To fix this problem, push the seal back into its place.

5. Dropped/Poorly Adjusted Hinges

After some time of use, hinges on your composite doors may start dropping, which can make the door snag. To re-adjust a composite door hinge, use a hex key, flathead screwdriver, and a Phillips-head screwdriver. Also, it would be great if you applied a lithium-based lubricant to your door hinges every 6 months.

6. Staining

Normally, composite doors tend to get stained with time. Whether it be dirty handprints or muddy paws, not cleaning these stains off your composite doors will probably damage their finish long-term. Once your composite doors get dirty, wipe those stains off using a mild detergent, warm water, and a cloth. If you’re dealing with stubborn stains, use a stronger agent safe for use on composite doors.


Composite doors are energy-efficient, built to last, provide a high level of security, and come in a wide range of styles, colours, and finishes. Although they generally require less maintenance than other types of doors, you should still take care of your composite doors. Today, we talked about the top 6 composite door problems and how to solve them the easiest way possible.

Thinking about investing in composite doors? Design your dream door here and get a free no-obligation quote in the shortest time possible. Have any additional composite doors-related questions? Contact us right away!

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