Llantrisant · Mid Glamorgan
Composite Doors in Llantrisant
A new composite front door in Llantrisant can stop draughts, upgrade your locks and refresh the front of your home, with every door made to the measured opening.
- CF72
- CF38
- Guide from £1,295
About composite back doors in Llantrisant
A composite door slab usually combines a glass-reinforced plastic (GRP) outer skin, moulded with a woodgrain texture, over an insulated core. Some cores are high-density foam, others solid timber. Timber-cored slabs tend to feel heavier and more solid when closed, while foam cores are lighter and insulate well.
Composite door prices depend on the door style, core type, colour, glass design, side panels or toplights, hardware finish and lock specification. Removing an old frame from a deep or uneven opening, or fitting a new threshold, adds labour. See the guide prices for typical ranges; the written quote fixes the figure.
A flat's entrance door that opens onto a shared stairwell or corridor is normally a fire door, so it should not be swapped for a standard composite door. Certified fire-rated composite doorsets are made for this purpose, and the freeholder or managing agent will usually need to agree the replacement.
Letterplates can be a security weak spot, because tools can be fed through to reach the inside handle or keys. A letterplate with an internal cowl or restrictor, or a door with no letterplate and a wall-mounted post box, reduces that risk. Keys should be kept away from the door.
Included as standard
- Fitting, adjusting, sealing and finishing around the frame
- Made-to-measure composite doorset in your chosen colour
- Survey, measuring and threshold check
- Multi-point lock with anti-snap cylinder

Working in Llantrisant
- Postcodes covered
- CF72, CF38 and the surrounding area, including Tonyrefail, Pontypridd and Pencoed
- Coast
- Llantrisant sits roughly 17 km from the nearest coastline, close enough that exposure on open or high ground is worth considering. Near the sea, salt air corrodes plated door furniture and lock parts more quickly, so marine-grade or stainless hardware is worth considering. Exposed doors also face wind-driven rain, so a well-sealed frame, weatherbar and threshold drainage matter more than usual.
- Daylight and sun
- In Llantrisant the midwinter sun reaches about 15° above the horizon at noon, with roughly 7.6 hours of daylight, rising to about 62° and 16.4 hours in midsummer. Dark-coloured doors in direct sun get much hotter than pale ones, so follow the manufacturer's guidance on colour for south and west-facing entrances. Glazed panels and side lights bring daylight into dark hallways, especially on north-facing elevations.
- Access and setting
- Rural doors often face open fields, driving rain and sometimes mud and animals, so robust weather seals and threshold drainage matter. Older cottages may have low or irregular openings, so doors are measured carefully and frames sized to suit.
- Rules in Wales
- In Wales, Approved Document N covers safety glazing: safety glass is needed in and around doors and in low-level glazing where people could walk into it.
Guide prices in Llantrisant
| Typical job | Guide price inc VAT |
|---|---|
| Composite front door, supplied and fitted | £1,295 – £1,795 |
| Door with one side panel | £1,695 – £2,295 |
| Door, side panel and top light | £1,895 – £2,595 |
Get a guide price for your size
Security rules for doors and windows differ between the UK nations. For replacement doors and windows in Wales, products tested to PAS 24 are a sensible benchmark.
Specification choices
Solid timber core
A heavier slab with a timber core under the composite skin, giving a solid feel and sound when the door closes.
Insulated foam core
A lighter slab with a high-density foam core, offering good thermal performance and a wide range of styles.
Glass designs
Clear, obscure, bevelled or decorative glass in sealed cassettes, with toughened or laminated panes for safety and security.
Composite Doors in Llantrisant: questions
How much does a composite front door cost?
The cost of a composite door depends on the style, core type, colour, glass, side panels or toplights, hardware and lock specification, plus the condition of the opening. A plain door in a standard colour sits at the lower end, while doors with glazed side panels and premium hardware cost more. See the guide prices; the written quote fixes your price.
What glass can I have in a composite door?
Composite door glass comes in sealed cassettes with clear, obscure, bevelled, leaded-effect or decorative designs. Any glass within 1500mm of the floor in a door should be safety glass, and laminated glass adds security because it stays together when struck. Obscure designs give privacy in hallways while still letting daylight in.
What guarantee comes with a composite door?
Manufacturer guarantees apply to the door slab, frame, glass and locking hardware, and the terms are confirmed in writing. Guarantee terms for the installation are set out in writing with your quote, so you know what is covered before you go ahead. Keep the paperwork with your building regulations certificate for when you sell the property.
Are composite doors more secure than uPVC doors?
A well-specified composite door is usually stiffer and harder to force than an older uPVC panel door, but security depends mostly on the lock, cylinder, hinges and glass. Look for a multi-point lock, an anti-snap cylinder such as TS 007 3-star or SS312 Diamond, laminated glass and a door tested to PAS 24.
Do you cover Llantrisant for composite doors?
Yes. We can quote for composite doors across Llantrisant and the surrounding Mid Glamorgan area, including postcode districts CF72 and CF38, and nearby Tonyrefail, Pontypridd and Pencoed. Start with your postcode on the quote form and a glazier will arrange a free survey before giving you a written quote.
Get a written quote in Llantrisant
Free survey for new glazing, clear guide prices and one point of contact for every glazing job.