Faded uPVC Door: Restore or Replace? Cost Comparison
A faded but structurally sound uPVC or composite door can be restored for under £20 in about an hour; replacement typically costs £800–£2,000+ fitted. Restore when the problem is cosmetic — UV fading, chalking, dullness. Replace only when the door has failed structurally: warping, dropped hinges, blown seals or rot in the frame.
Why doors fade (and why it isn't "wear")
uPVC and composite door skins contain pigments and stabilisers that degrade under UV light. South- and west-facing doors take the biggest hit, developing the classic symptoms: colour turning chalky and pale, dark doors greying, and a surface that feels slightly powdery to the touch. That's photodegradation of the surface layer — a few microns deep. The door underneath is usually fine, which is why restoration works so well.
The restore option: what's involved
A colour-restoring treatment like Houseproud Door Restore re-saturates the faded surface, reviving the original colour and sheen on composite, uPVC, vinyl and PVC surfaces — doors, frames, window panels and garage trim. The process:
- Wash the door with warm soapy water to remove dirt and chalky residue; rinse and dry fully.
- Mask glazing and hardware — or work carefully with a cloth around them.
- Apply Door Restore with a lint-free cloth in even strokes, working panel by panel.
- Buff lightly once touch-dry for an even sheen. Deep fade may take a second coat.
One 250ml bottle covers a standard door with product to spare for the frame and windowsills. Our quick-restore guide has more application detail.
The numbers
| Restore | Replace (composite) | |
|---|---|---|
| Cost | Under £20 | £800–£2,000+ fitted |
| Time | ~1 hour DIY | Survey + fitting, weeks of lead time |
| Disruption | None | A day without a front door |
| Fixes | Fading, chalking, dullness, light scratches | Everything, including structural faults |
Which? and the Federation of Master Builders (fmb.org.uk) both put composite door replacement comfortably into four figures once fitting is included — worth it for a failed door, hard to justify for a faded one.
When replacement IS the right call
Be honest about these: the door has warped so it no longer seals (draughts, whistling, daylight at edges), the locking mechanism or hinges have failed beyond adjustment, there's rot or corrosion in the frame itself, or the glazing units have blown (misted between panes). No surface treatment fixes mechanics. Energy efficiency matters too — if your door predates modern standards, guidance at GOV.UK's energy efficiency hub can help you judge whether an upgrade pays back.
Prep mistakes that ruin the result
Restoration is genuinely easy, but four shortcuts spoil it. Skipping the wash: applying restorer over chalky residue seals the chalk in, giving a patchy finish — wash until a white cloth wiped across the door comes away clean. Working in direct sun: the product flashes off too fast and leaves lap marks; pick a shaded hour or an overcast day. Soaking rather than wiping: a thin, even coat buffed in beats a wet one every time — more thin coats, not one thick one. Forgetting the frame: a revived door in a faded frame looks odd; do the frame, sill and any side panels in the same session while the cloth is loaded. Allow the door to cure per the label before heavy rain hits it, and it's done.
One bottle, a whole house of faded plastic
UV fade doesn't stop at the front door, and neither does the restorer. The same 250ml bottle of Door Restore handles uPVC window frames and sills, garage door trim, conservatory frames, black guttering and downpipes gone grey, garden furniture, wheelie bins that have chalked in the sun, and even faded bumpers and exterior trim on caravans and motorhomes. Work through them on the same afternoon and the whole frontage lifts together — which is where the restore-vs-replace maths becomes absurd: one bottle under £20 versus replacement windows, doors and guttering that would run into five figures. For the front-of-house effect specifically, pair a restored door with clean windows and swept paths; estate agents consistently rank doors and windows among the highest-impact kerb appeal factors when valuing a home.
Frequently asked questions
Can a faded composite door be restored?
Yes — UV fading is surface-level. A colour restorer re-saturates the pigment layer and revives sheen in around an hour.
How long does door restorer last?
Expect a season or more depending on sun exposure; south-facing doors may want an annual refresh. It's a 10-minute top-up once the door is clean.
Does painting a uPVC door work instead?
Specialist uPVC paints exist but need thorough prep, change the door's look permanently, and can flake if applied badly. Restoration keeps the original finish.
Why has my dark door faded faster than my neighbour's white one?
Dark surfaces absorb more UV and heat, so pigment degradation shows sooner — especially on south- and west-facing elevations.
Sources: Federation of Master Builders; GOV.UK — improving energy efficiency.