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Composite Front Door Repair Costs in 2025: What to Expect

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Composite Front Door Repair Costs in 2025: What to Expect

Composite doors are built for durability and longevity. However, over time regular use and extreme weather can negatively impact their performance. But what issues can arise? Can you repair them? And how much will this cost? This blog aims to answer these questions and discover whether repair or replacement is the best way forward.

Understanding Composite Front Doors: Features and Durability

What is a Composite Front Door? A Quick Overview

A composite door is made from a combination of materials. They usually have a solid timber core, surrounded by uPVC, laminate, or Glass Reinforced Plastic. This mix gives the door exceptional strength and durability while offering the beauty and style of real timber. If you're comparing a composite vs uPVC door, it's worth noting that composite doors tend to offer superior insulation and security, thanks to their solid core and layered construction.

Why Choose Composite Front Doors: Strength, Style, and Security

Composite doors are fast becoming the most popular choice of door for many homeowners. Their durability, strength, and longevity mean they will last for many years, whilst the security features, such as a full multipoint locking system featured on National Plastics composite doors, provides lasting peace of mind. They are also extremely stylish, being available in a multitude of colours and designs.

How Long Do Composite Front Doors Last? Lifespan and Maintenance

Composite doors are designed to last. For example, National Plastics composite doors come with a ten-year warranty, but we fully expect them to outlive that. They are extremely low maintenance, requiring only a wipe with a clean, damp cloth to keep them looking and performing their best.

Typical Repair Costs for Composite Front Door

Composite doors are designed to last, but accidents can happen. So what should you do if damage happens to your door?

Repairing a Faulty Lock Mechanism: Price Breakdown

The lock of your door is usually the first part to become damage, purely down to high levels of usage. It can be caused by build up of debris in the lock's internal mechanism. If this is the case, then a silicone lubricant on your door cylinder and grease lubricant for the locking mechanism should do the trick.

If this doesn't work, then you may need to consult a professional and consider a new locking mechanism. The cost of this will vary depending on location and the locksmith you choose. However, it can range from £50 to £200 with an average cost of £80 to £100.

Fixing Minor Cracks: Costs and Considerations

Minor cracks can occur if your door is subject to any damage or if it has been exposed to extreme temperatures. The good news is that if these cracks are minor, they can usually be repaired. This will cost between £60 and £150, with an average price of £110. However, again this cost will vary depending on the level of damage, where you live, and the professional you choose to work with.

What to Expect for Dropped Hinge Repairs

Even with regular maintenance, the hinges of your composite door can drop. You know if this has happened as your door will stick or not close properly. If your hinges are in good condition, you may be able to adjust them until your door is correctly fitted again. Alternatively, you can replace the hinges at a cost of between £70 and £190.

Warped or Bowed Doors: Can They Be Fixed?

The short answer, is yes, a warped or bowed composite door can be fixed, but this all depends on the extent of the damage. We would recommend consulting a professional who will be able to assess your door and advise on the best solution. It may be that the door can be repaired, in which instance the cost will be around £120 to £280. However, it may be that the door will need to be completely replaced.

Replacing Weather Seals and Fixing Drainage Issues

Two parts of your composite door which can wear over time are the weather seal and drainage channels. The weather seal helps to keep draughts out and provides insulation for your home. If this seal becomes worn, it can become ineffective. As such, we would recommend replacing it, which will cost you between £75 and £175. It's also a good idea to check the door silicones around the frame, as these can degrade over time and affect the door's weatherproofing.

If the drainage channel on your door becomes blocked, it can cause water to pool at the bottom of the door. If left, this can cause irreparable water damage. Again, as with your weather seal, we would recommend replacing your drainage channel as soon as you identify any issues. The cost for this can range from £60 to £180.

Factors That Affect Composite Door Repair Costs

The Extent of the Damage: Repair vs. Replacement

This may sound obvious, but the extent of damage will determine whether you are able to repair the door or have to replace it. Consulting a reputable professional will help to reach a decision that is good for you, your home, and your budget.

Location and Labour Rates: How Geography Influences Costs

As mentioned above, where you live will affect the cost of repairs. For example, if you live in the South, labour rates may be more expensive than if you lived in the North. However, getting several quotes before deciding on which professional to use will help you choose the best tradesperson at the right price for you.

The Role of Materials and Door Style in Repair Pricing

As with any building repair, the cost of materials will impact the price of repairs. Any professional will have to pass on increasing material prices to their customer, which will be reflected in your final bill.

When Should You Repair vs. Replace Your Composite Door?

Signs You Need a Repair: What to Look For

As mentioned above, there are several signs you need to look for which may suggest you need to repair your composite door:

  • The lock is consistently sticking, and it becomes harder to lock and unlock your door.
  • Cracks appearing in your door. If left, these can develop into larger cracks which may become irreparable.
  • Draughts coming through your door. This may be a sign that your weather seal is deteriorating and needs replacing.
  • Water pooling underneath your door. This could mean that your drainage channel is blocked and requires attention or needs replacing.
  • If you struggle to close your door or your door is out of line. This can be a sign of bowing or warping and it is advisable to inspect your hinges and adjust in you can or have them replaced.

When It's Time to Replace Your Composite Front Door

If you have spotted any of the above issues and are unable to resolve them with repair only, it is probably time to consider a new composite front door. Composite doors are now one of the most popular choices for homeowners due to their longevity, durability, and security features. Because of this, there is now a wide choice of composite doors available in a variety of colours, designs, and styles, making it easy to find the perfect door for your home.

Cost Comparison: Repairing vs. Replacing a Composite Door

Obviously repairing your composite door will be cheaper than replacing it. However, if over time more and more repairs need to be carried out, then it becomes the least cost-effective option. At this point, it may be worth considering a new door.

Expert Tips from National Plastics: Get Your Front Door Back in Shape

Whilst National Plastics do not offer a repair service, we can offer advice and guidance. Call our expert friendly team today on 0800 22 77 77.


Venture Building Plastics is a trading name of Specialist Building Products Limited, a wholly owned subsidiary of the Epwin Group Plc. Specialist Building Products Limited is registered in England & Wales. Company Registration number: 1268689. Registered Office: Friars Gate, 1011 Stratford Road, Shirley, Solihull, West Midlands B90 4BN. VAT Registration No. 864 4507 10