Front & back doors
Composite doors in Oxford & Oxfordshire
Solid, secure and made to suit your home – from cottage-style shiplap to sleek contemporary designs. Choose from more than 90 door styles and 25 colours, supplied and fitted by our own team.
Why choose a composite door?
A composite door gives you the look of a painted timber door with far more strength and stability. The doors we now fit are built around a 48mm cross-laminated solid timber core – no foam fill or timber sub-frame – and finished with a tough, woodgrain-textured outer skin.
That solid construction is what gives the door its weight. It’s up to 40% heavier and up to 10% thicker than many other composite doors, which helps it keep its shape, hold in heat and cut down outside noise.
Whether you’re replacing a tired front door in central Oxford or need a back door for a Cotswold stone cottage, we’ll help you choose a style that suits the property and fit it with care.
What goes into every door
The details that make the difference over years of everyday use.
100% solid timber core
48mm cross-laminated timber resists bending and twisting, so the door stays true in its frame.
Heat-reflective skin
CoolSkin® reflects up to 95% of the sun’s rays, guarding against cracking, bowing and delamination – even on south-facing doors.
Moisture barrier
A concealed barrier at the foot of the door protects the core from water, preventing swelling and sticking.
Toughened, argon-filled glass
Decorative glazing is thermally toughened or laminated as standard, with argon-filled units for better insulation.
Colour-matched frames
Strong, secure frames finished to match your door in most colours for a neat, uniform look.
Warmer & quieter
The solid core helps keep heat in and reduces the noise reaching your hallway from the street.
Composite door styles
Four collections covering period, cottage and modern homes. We’ll bring samples and brochures when we visit.
Classic
Traditional panelled designs inspired by Georgian and Victorian front doors, plus new 1930s-style designs with characterful glazing.
Including Etna, Snowdon, Lyell & Pentland
Country
Authentic shiplap detailing with a hand-made feel. Lovely on stone cottages, especially in softer shades like Sage, Claystone or Pearl Grey.
Including Tyree, Malvern, Mardale & Sanford
Urban
Clean lines and minimal detailing for modern homes and new builds, often paired with a long pull handle.
Including Fuji, Kyo, Pen & Kuppe
Avantal
Ultra-modern doors with a silky smooth, matte finish inspired by aluminium. Five exclusive colours with a Crystal White interior.
Antares, Celeste, Rigel, Sirius & Vega
Side panels, double doors & stable doors
Add a fully glazed sidelight or toplight to bring more light into the hallway, or a matching solid panel for privacy.
Available in a wide range of styles and finishes, with some designs also offered as offset double doors.
Open the top half for fresh air and light. Two separate locks, keyed alike so one key opens both.
Composite door colours
Choose from 25 colours, with the option of a different colour on the inside. Most people go for white internally, but it’s entirely up to you.
Matching frames are available in most colours. Colours on screen are a guide only – we’ll show you real samples so you can see them against your brick or render.
Glazing options
From clear glass that floods the hallway with light to obscure and decorative designs for privacy. Every glass design is thermally toughened or laminated, and many are available triple glazed.
You can also pair a clear front pane with a textured backing glass – a simple look that still keeps your hallway private.
Handles, knockers & hardware
Eight hardware colours across a wide choice of handles, letterplates and knockers – all covered by a 10-year hardware warranty.
Also available: ERA TouchKey keyless entry (fingerprint, app or Bluetooth with key override) and an easy-grip DDA thumbturn that needs 40% less force to turn.
Composite door security
Lock snapping is now one of the most common ways burglars break in. Every door we fit comes with the Ultimate high-security cylinder, tested to Sold Secure Diamond Grade.
If it detects an attack, an inner mechanism locks the cylinder down. A sacrificial cut means only the tip snaps off, leaving the locking mechanism protected.
If your home is broken into by snapping the cylinder, the manufacturer offers £2,000 compensation. Terms and conditions apply.
Multi-point locking
Choose from Guardian5 and QuadHook+ five-point locks, tested to PAS 24 security standards.
Automatic locking
AV2 and AV4 locks secure the door every time it’s closed firmly – ideal with pull handles. Heritage versions place the cylinder higher for a traditional look.
Copy-protected keys
Five high-security dimple keys as standard. Copies can only be made by quoting your unique key reference.
Independently tested
Tested for weather resistance, sound insulation, strength and thermal performance, and to PAS 24:2022 when ordered to Secured by Design specification.
Composite door brochure
Every door style, colour, glass design and hardware option in one place (PDF).
Composite doors we’ve fitted
A selection of recent front and back doors installed by our team.
Swipe to see more →
Composite doors: frequently asked questions
What is a composite door?
A door made from more than one material. The doors we fit have a 48mm solid timber core, rather than foam or a timber sub-frame, finished with a heat-reflective, woodgrain-textured skin.
What is the difference between composite and uPVC doors?
A composite door is solid and heavy, with a realistic timber look. Ours are up to 40% heavier than many other composite doors, which helps with security, warmth and noise reduction. We fit both, so we can talk you through which suits your home and budget.
How secure are composite doors?
Every door comes with a Sold Secure Diamond Grade cylinder and multi-point locking tested to PAS 24, backed by a £2,000 security guarantee against cylinder snapping (terms apply).
Can I have a different colour inside and out?
Yes. You can choose any of the 25 colours for each side. Most people pick white for the inside.
Are composite doors energy efficient?
The solid timber core and argon-filled, toughened glazing help keep heat in. The doors are tested for thermal performance as well as weather resistance.
How do I get a quote?
Send us a photo of your current door, call 01869 343434 or book a free home visit. There’s no charge and no obligation.
Get a quote for a new composite door
We fit composite doors across Oxford and Oxfordshire. Tell us what you have in mind and we’ll talk you through the options – no hard sell, no charge, no obligation.
- 1Send a photo of your current door for a quick, free estimate.
- 2Book a home visit – we’ll measure up and bring samples.
- 3Call or email on 01869 343434 or sales@isiswindows.co.uk.
