Where do I need fire doors?

Integral garage to house, all doors in HMOs, doors leading to escape stair in flats above ground level, doors in 3+ storey homes (Part B). FD30 minimum; FD60 in some flats.

Can I keep old doors and just change ironmongery?

Yes — strip, sand and re-paint plus new ironmongery £80–£140 per door. Often best value on character heritage doors.

Pocket door vs hinged?

Pocket saves ~1m² floor space and is excellent for tight openings (en-suite, study, utility). Costs 2–3× hinged. Hinged doors are simpler and more reliable.

Does Builderr supply and fit?

Yes — full door schedule, frames, ironmongery and architrave installed as part of renovation packages.

Quick Answer

How Much Do Internal Doors Cost in London?

London internal door costs (supplied and fitted per opening including frame, ironmongery and architrave): primed white panelled £180–£320, oak veneer £280–£550, solid oak £450–£800, fire-rated FD30 £300–£600 and pocket/sliding £650–£1,400. A typical 4-bedroom Victorian whole-house door change (8 internal doors) runs £2,800–£5,500.

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Door types

Flush (smooth-face) doors — modern minimalist, cheapest. Panelled doors — 4-panel, 6-panel, Victorian shaker; standard heritage spec. Glazed doors — half-glass or full-glass French/double doors for lounge or garden access; toughened safety glass required at low level. Fire doors — FD30 (30-min) required between integral garage and house, between flats, and on escape routes in HMOs/converted flats. Solid-core doors — heavier, better acoustic, premium feel.

Frame, ironmongery and architrave

Linings/frames £45–£120 per opening. Architrave (chamfered, ogee, Victorian profile) £25–£65 per opening. Ironmongery: lever handle + latch £35–£90; round knob + mortice £55–£140; magnetic catches; thumbturns for bathrooms; FD30 fire-rated intumescent + closer £60–£180. Hinges: 3 per door standard, 4 on FD30.

Pocket doors and special hardware

Pocket doors (slide into wall cavity) free up floor space — popular in kitchen-utility, en-suite and study openings. Frame kit £350–£700, fitting +£300–£700. Sliding barn doors £400–£900 supplied. Heritage skirting/architrave matching for period homes adds £40–£80 per opening.

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Senior consultant call within one business hour. Free desk-based planning assessment. Fixed-scope quote — no provisional sums, no day-rate creep.