Doors

Guides to energy-efficient doors for UK homes. Composite, timber, and uPVC door costs, security ratings, and thermal performance compared.

147 articles

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Doors

Can you drill composite doors?

Drilling a composite door is possible but risks cracking the GRP skin. Use an HSS bit at 400–600 rpm and check your warranty before you start.

2 min · 11 May 2026
Doors

Can you cut composite doors?

Cutting a composite door voids the 10-year warranty and risks warping or delamination. Here is why adjusting the frame is the only safe fix.

2 min · 11 May 2026
Doors

Can composite doors open outwards?

Yes, composite doors can open outwards, though fewer than 10% of UK installations use this option. Learn about costs, frames and regulations.

2 min · 11 May 2026
Doors

Can composite doors be repaired?

Composite door repairs typically cost £50 to £300. Find out which faults, warping, seals, hinges, are fixable and when you need a full replacement.

2 min · 11 May 2026
Doors

Can composite doors be repainted?

Composite doors can be repainted for £100–£250 in materials, but only with specialist GRP primers. Here's how to do it without voiding your warranty.

2 min · 11 May 2026
Doors

Can composite doors be painted?

Composite doors can be painted, but using the wrong primer on a GRP skin causes peeling within months. Check your warranty before you start, Solidor voids it.

2 min · 11 May 2026
Doors

Can composite doors be made to any size?

Yes, composite doors can be made to almost any size, but standard widths max at 1,200mm. Learn about bespoke options and costs for your UK home.

2 min · 11 May 2026
Doors

Can composite doors be cut to size?

Composite doors cannot be cut to size beyond 3–5mm without voiding the warranty. Find out why, and how to order a custom door that fits perfectly.

2 min · 11 May 2026
Doors

Can composite doors be cut down?

Composite doors cannot be cut down without voiding the warranty and damaging the foam core. Here is what to order instead for a perfect fit.

2 min · 11 May 2026
Doors

Are composite doors worth the money?

Yes, composite doors are worth the money for most UK homes, with 5–7 year payback via energy savings. Learn the costs, savings, and security benefits.

4 min · 11 May 2026
Doors

Are composite doors worth it?

Yes, composite doors are worth it for most UK homes. They offer 30+ year lifespan, 40% better heat retention, and top security. Compare costs and savings.

2 min · 11 May 2026
Doors

Are composite doors upvc?

Composite doors are not uPVC. Compare materials, thermal performance, and installed costs of £800–£1,500 vs £400–£900 to choose the right front door.

2 min · 11 May 2026
Doors

Are composite doors solid?

Composite doors have a solid timber core and GRP skin, giving a lifespan exceeding 30 years. Here is how they compare to uPVC and timber on security.

2 min · 11 May 2026
Doors

Are composite doors secure?

Yes, composite doors are secure when fitted with correct hardware. They meet PAS 24:2022 and resist attack for 5-10 minutes. Learn what to check before buying.

2 min · 11 May 2026
Doors

Are composite doors fire rated?

Most UK composite doors meet FD30 under BS 476-22, giving 30 minutes of fire resistance. Check UKAS-accredited certification to satisfy Building Regulations.

3 min · 11 May 2026
Doors

Are composite doors expensive?

Composite doors cost £1,200–£2,500 installed in 2026. Learn if they are expensive compared to uPVC and timber, plus long-term savings. Compare quotes.

2 min · 11 May 2026
Doors

Do composite doors fade in the sun?

No, certified composite doors rarely fade in UK sun, with a colour-fastness rating of 7 or 8 and a lifespan of 10–15 years. Lower-quality doors can fade in 3–5 years,…

4 min · 5 May 2026
Doors

Are composite doors hard to break into?

Yes, composite doors are hard to break into. A properly specified door with PAS 24:2022 certification and a TS 007 3-star lock cylinder resists forced entry for 5 to 10…

5 min · 5 May 2026

Doors Glossary

Composite door
A door made from a combination of materials (foam core, GRP skin, timber frame) offering superior insulation, security, and weather resistance compared to solid timber or uPVC.
Multipoint locking
A door locking system with multiple bolts that engage at several points along the frame, providing significantly better security than a single deadbolt.
Threshold
The bottom section of a door frame. Low-threshold options improve accessibility while maintaining weather sealing and thermal performance.

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Doors

Energy efficient front doors UK (2026)

The most energy efficient front doors are composite doors achieving U-values of 0.8-1.2 W/m²K, costing £800-£2,000 installed. They outperform uPVC, timber, and aluminium on thermal performance while providing excellent security.

2 min · 8 Mar 2026
Doors

Bifold doors cost, types and fitting guide

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Doors

Front Door Costs, A UK Buyer’s Guide

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Doors

Patio doors cost and installation guide

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16 min · 30 Mar 2026
Doors

Composite vs uPVC front doors compared 2026

Composite doors cost £1,200–£2,200 and uPVC doors £500–£1,200 installed in 2026. Composite offers better insulation (U-value 1.2 vs 1.6 W/m²K), saving £50–£90 yearly on heating, with a payback period of…

5 min · 4 May 2026
Doors

Door Draught Seals and Weatherstripping, A UK Guide

Door draught seals cost £15-£30 per door for DIY materials and save £25-£40 per year on heating bills, according to the Energy Saving Trust. They are one of the cheapest…

5 min · 4 May 2026