County Londonderry · Northern Ireland
Composite Doors in County Londonderry
If your back door in County Londonderry is draughty, hard to lock or letting water in, we can survey it and quote for a made-to-measure composite replacement.
- Guide from £1,295
- 5 towns covered
- Postcode areas BT
Composite doors in County Londonderry
Composite doors do not need painting. Wipe the skin and frame with warm soapy water, avoid solvents and abrasive pads, and keep the threshold drainage clear. A little light oil on the lock gearing and hinges once or twice a year keeps the door closing smoothly, and hinges can be adjusted if it drops.
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.
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.
Most composite doors use a multi-point lock: one turn of the key throws hooks, rollers or bolts into keeps along the frame. The euro cylinder is the weak point on many older doors, so look for one tested against snapping, such as a TS 007 3-star kitemarked or Sold Secure SS312 Diamond cylinder.

Towns we cover for composite doors in County Londonderry
Choose your town for local details, nearby areas and the postcode districts we cover.
What applies in County Londonderry
Technical Booklet V covers safety glazing in Northern Ireland, including glass in and around doors and low-level glazing where people could walk into it.
Technical Booklet F1 sets the energy performance that replacement windows, doors and rooflights need to meet in Northern Ireland.
County Londonderry has its own coastline, so for homes and businesses near the sea, salt air and wind-driven rain are part of the brief. 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.
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.
Guide prices
| 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 |
Choosing your composite doors
Colours and dual colour
Woodgrain-textured skins in many colours, often with a different colour inside so the door suits both the street and the hallway.
Side panels and toplights
Glazed or solid panels beside or above the door to bring light into the hallway and fill wider openings.
Low threshold
A low-profile aluminium threshold for step-free or near step-free access, used where drainage and shelter allow.
Glass designs
Clear, obscure, bevelled or decorative glass in sealed cassettes, with toughened or laminated panes for safety and security.
Composite Doors in County Londonderry: questions
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.
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.
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.
Which parts of County Londonderry do you cover for composite doors?
We cover the whole of County Londonderry, including Derry/Londonderry, Coleraine, Limavady, Magherafelt and Portstewart, and postcode areas BT. Building rules for composite doors here follow the regulations for Northern Ireland. Enter your postcode on the quote form and we will confirm cover; then a glazier will arrange a free survey before giving you a written quote.
Other glazing services in County Londonderry
- Replacement Glass in County Londonderry
- Misted Glass Repair in County Londonderry
- Emergency Glazing in County Londonderry
- Safety Glass in County Londonderry
- Window Repairs in County Londonderry
- Window Film in County Londonderry
- uPVC Windows in County Londonderry
- Aluminium Windows in County Londonderry
- Sash Windows in County Londonderry
- Bifold Doors in County Londonderry
- Sliding Doors in County Londonderry
- Secondary Glazing in County Londonderry
- Roof Lanterns in County Londonderry
- Glass Balustrades in County Londonderry
- Frameless Glass in County Londonderry
- Shower Screens in County Londonderry
- Glass Splashbacks in County Londonderry
- Bespoke Mirrors in County Londonderry
- Glass Roofs in County Londonderry
- Shopfront Glazing in County Londonderry
- Curtain Walling in County Londonderry
- Glass Partitions in County Londonderry
- Property Glazing in County Londonderry
All glazing in County Londonderry · Composite Front Doors across the UK
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