Dorchester · Dorset
Composite Doors in Dorchester
Timber doors in Dorchester that swell, stick or need repainting can be replaced with low-maintenance composite doors that look like painted timber.
- DT1
- Guide from £1,295
About composite back doors in Dorchester
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.
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.
In England, replacing a glazed external door is notifiable building work, and whether a mostly solid door counts depends on how much of it is glazed, so the installer confirms what applies. Where notification is needed, an installer registered with a competent person scheme can self-certify the work; otherwise building control approves it.
Replacing a front door usually takes a day on site. The old door and frame are cut out, the new frame is fixed, packed and squared, the slab is hung and adjusted, and the frame is sealed outside and trimmed inside. Plaster around older frames sometimes needs making good afterwards.
Included as standard
- Made-to-measure composite doorset in your chosen colour
- Removal and disposal of the old door and frame
- Written guarantee terms and advice on building regulations sign-off
- Survey, measuring and threshold check
Local details for Dorchester
- Postcodes covered
- DT1 and the surrounding area, including Weymouth, Bridport and Yeovil
- Coast
- Dorchester sits roughly 8 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 Dorchester the midwinter sun reaches about 16° above the horizon at noon, with roughly 7.7 hours of daylight, rising to about 63° and 16.3 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 England
- Approved Document K requires safety glass in critical locations in England: glazing in doors and in side panels within 300 mm of a door, up to 1500 mm above floor level, and any glazing in walls or partitions up to 800 mm above floor level.
Guide prices in Dorchester
| 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
If the glass sits in a fire-resisting door or screen, such as a flat entrance door or a commercial corridor screen, it must be replaced with fire-rated glazing tested as part of that system. Ordinary toughened glass is not a substitute.
What you can choose
Insulated foam core
A lighter slab with a high-density foam core, offering good thermal performance and a wide range of styles.
Hardware finishes
Handles, knockers, letterplates and numerals in chrome, satin, gold, black or graphite, chosen to match the door style.
Solid timber core
A heavier slab with a timber core under the composite skin, giving a solid feel and sound when the door closes.
Composite Doors in Dorchester: questions
Will a composite door fade or need painting?
Composite doors do not need painting, and the coloured skins are designed to resist fading, although any surface colour can change slightly over many years in strong sun. Clean the door with warm soapy water and a soft cloth, and avoid solvents or abrasive pads. Manufacturer guarantees apply to the finish, and the terms are confirmed in writing.
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.
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.
How long does it take to fit a composite door?
Fitting a composite front or back door usually takes a day on site, including removing the old door and frame, fitting and adjusting the new doorset and sealing around it. Doors are made to order first, and the manufacturing lead time depends on the style and colour; it is confirmed in writing when you accept the quote.
Do you cover Dorchester for composite doors?
Yes. We can quote for composite doors across Dorchester and the surrounding Dorset area, including postcode districts DT1, and nearby Weymouth, Bridport and Yeovil. 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 Dorchester
Free survey for new glazing, clear guide prices and one point of contact for every glazing job.