10 Reasons Homeowners in Cornwall Are Choosing Composite Doors Over uPVC

For two decades, uPVC was the default front-door replacement across Cornwall. It was cheap, low-maintenance and infinitely better than the rotting softwood doors it replaced. But in 2026, the majority of Cornwall homeowners upgrading a front door are choosing composite over uPVC — and the reasons are practical, not cosmetic. 1. SECURITY A modern composite door is up to five times stronger than an equivalent uPVC door. The laminated core resists impact that would flex or shatter a uPVC panel, and factory-fitted PAS24:2022 hardware meets police-approved Secured by Design standards straight out of the box. 2. THERMAL PERFORMANCE Composite door slabs typically achieve U-values around 1.0 W/m²K — half the heat loss of a mid-market uPVC door. In a Cornish winter that translates into a measurably warmer hallway and a lower heating bill. 3. WEATHER RESISTANCE The GRP outer skin doesn't chalk, fade or warp in salt air. uPVC yellows over 10-15 years, especially in south-facing coastal exposures. Composite holds its factory colour for 25 years and beyond. 4. NO SAGGING OR DROPPING uPVC doors sag over time — the frame flexes under repeated door weight and slam cycles, and the door starts to catch on the threshold or drop out of the multi-point lock. A composite door with a solid core stays true. 5. LOOKS LIKE TIMBER Woodgrain-embossed GRP skins in colours like chartwell green, French navy and painswick give the appearance of a hand-painted timber door without the maintenance. A uPVC door always looks like a uPVC door. 6. QUIETER The dense laminated core damps sound transmission far better than the hollow-chamber construction of a uPVC panel. Homes on main roads or near coastal footpaths notice the difference immediately. 7. BETTER GUARANTEES Composite door manufacturers routinely offer 10-year written guarantees on the slab and hardware. Most uPVC door guarantees are 5 years and exclude colour fade, warping and hardware failure. 8. KERB APPEAL AND PROPERTY VALUE A well-chosen composite door lifts kerb appeal in a way uPVC simply doesn't. Estate agents across Cornwall consistently report that a smart front door is one of the highest-return cosmetic upgrades before listing. 9. WIDER STYLE AND COLOUR CHOICE Composite doors are available in 20+ factory colours, dozens of glazing designs and multiple slab styles (contemporary flush, traditional cottage, stable, arched). uPVC ranges are considerably narrower. 10. FUTURE-PROOFING Composite is the current premium standard. When you sell in 8-10 years, buyers will still see a composite door as a plus. A uPVC door fitted today will look dated within a decade. The upfront cost of composite is higher — typically £1,600-£2,800 fully installed against £900-£1,400 for uPVC. But averaged across a 25-year lifespan, composite works out at similar per-year cost, with significantly better performance every one of those years.