Pick composite if…
- It's the front door and kerb appeal matters
- The house is south-facing and you've had UV fade on the last door
- You're staying in the house 10+ years
- Security is a genuine concern (rear alley, ground-floor flat, corner plot)
Composite vs uPVC Doors — Which is Best?
Straight comparison from a Leicester installer that fits both — no marketing fluff. Composite wins on security, insulation and kerb appeal; uPVC wins on price and is often the right call for back and side doors. Here's how they stack up.
Side-by-side comparison
| Feature | Composite | uPVC | Winner |
|---|---|---|---|
| Starting price (fully fitted, Leicester) | £1,099 | £799 | uPVC |
| Security (PAS 24 as standard) | Yes | Available as upgrade | Composite |
| Thermal U-value (typical) | 1.0–1.4 W/m²K | 1.6–1.8 W/m²K | Composite |
| Panel thickness | 44–48mm solid core | 24–28mm foam-filled | Composite |
| Colour options | 18 standard + 200 RAL, dual colour | 12 standard + RAL foil | Composite |
| Realistic lifespan | 30+ years | 15–20 years | Composite |
| Weight / feel when you close it | Heavy, thunk-shut | Lighter, more hollow | Composite |
| Best use case | Front door, high-security back door | Back door, side door, rental units | Depends |
| Weather resistance | GRP skin — no warp, no fade | Can discolour over time on south-facing | Composite |
| Value for money | Best for front-of-house | Best £-per-door | Depends |
Pick uPVC if…
- It's a back or side door out of public view
- It's a rental property and you want a low-maintenance long-life door
- Budget is the deciding factor
- You don't need the extra 0.4 W/m²K of insulation on that opening
Our honest Leicester recommendation
Nine times out of ten, we fit a composite front door and a uPVC back door on the same house. The front door is the one guests see, insurers ask about and estate agents photograph — that's where the composite premium earns its keep. The back door is a workhorse; uPVC does the job.
Where we'd flip that: HMO landlords, corner plots with alley access, and any house where the back door has already been targeted. In those cases the back door gets the composite treatment too.
Everything above is written by installers who fit both weekly across Leicester and Leicestershire. Book a free measured survey and we'll tell you honestly which is right for your opening.