Composite doors are the most popular front door choice in the UK — durable, thermally efficient and low maintenance. But despite their toughness, composite doors can be chipped, scratched, scuffed or cracked, particularly around the edges, lock areas, and letter plates. When this happens, the question is always the same: repair or replace? In most cases, specialist repair is the right answer.
What Is a Composite Door Made Of?
Modern composite doors typically have a glass-reinforced plastic (GRP) outer skin with a solid timber or polyurethane foam core. The GRP skin is finished with a smooth or textured surface — woodgrain effect, smooth, or grained — and factory-applied paint in a wide range of RAL colours. Understanding this construction is key to understanding how repairs work.
Common Composite Door Damage
- Surface chips and gouges — from impact with keys, stones, bikes or tools
- Edge chips — particularly on leading edges and around the lock
- Deep scratches through the colour coat — revealing the GRP beneath
- Scuffs and abrasion marks — often caused by ladders or furniture being moved past the door
- Fading or discolouration — typically around the top of the door from UV exposure
- Cracks in the GRP skin — from significant impact or settling
Can Composite Door Chips Be Repaired?
Yes. The GRP outer skin of composite doors is an ideal candidate for specialist surface repair. The process involves:
- Cleaning and preparing the damaged area
- Filling any chip or gouge with a compatible flexible filler
- Sanding back to a smooth profile
- Colour-matching using the manufacturer’s RAL code where possible, or by eye
- Applying colour in fine coats using a spray or brush system
- Texture-matching the surface to replicate woodgrain or smooth finishes
- Clear lacquering to protect the repair
What About Matching the Colour?
Colour-matching is one of the most important — and most challenging — aspects of composite door repair. Popular colours like anthracite grey, chartwell green and Farrow & Ball-inspired shades can be tricky to replicate exactly. An experienced technician will blend the repair on-site to match the weathered colour of the existing door, not just the factory paint code.
Is It Better to Repair or Replace?
A replacement composite door costs £800–£2,500 installed. A professional chip repair typically costs a fraction of that — often under £200 for a single damaged area. Unless the structural integrity of the door is compromised, repair is almost always the better option financially and environmentally.
Get a Composite Door Repair Quote
Shazam Repairs provides specialist composite door chip, scratch and scuff repair across the UK. Send us a photo of the damage for a free quote — most composite door repairs are completed in under two hours with no need to remove the door.
