Composite fire doors for Dorset buildings
We provide composite fire doors across Dorset, covering 4 towns and 37 postcode districts, including Bournemouth, Poole and Weymouth.
For deck-access blocks in and around Dorset, we specify composite doors certified for external use, with the right threshold detail. We only fit composite doors in Dorset in configurations covered by the product's certification.
Fire door work in Dorset spans housing providers with large estates, individual landlords, businesses and homeowners. We price every job from a survey, never from a list price alone, because the condition of the frames and the hardware makes a real difference.
What to check before you buy
Composite doors vary widely. The certification must cover the whole doorset as supplied: the core, skin, frame, glazing, letterplate, viewer and every item of hardware. Ask to see the certificate and the installation instructions, and check that the door's configuration, such as a side panel or glazed panel, is actually covered. BS 8214:2026 now includes maintenance guidance for composite and metal doors, reflecting how common they have become.
Rules and responsibilities in Dorset
England's framework applies in Dorset. Approved Document B guides the fire performance of new and replacement doors under the Building Regulations 2010. Day-to-day duties sit with the responsible person under the Fire Safety Order 2005, and for multi-occupied residential buildings, the Fire Safety (England) Regulations 2022 add duties such as giving residents information about fire doors.
For blocks over 11 metres in Dorset, those regulations require communal fire door checks at least every three months and best-endeavours flat entrance door checks each year. In higher-risk buildings, building work is overseen by the Building Safety Regulator, so we check whether approval is needed before starting.
From enquiry to handover in Dorset
- Survey opening, threshold and exposure
- Agree colour, glazing and hardware within the certified range
- Order doorset to measure
- Remove existing door and frame
- Install, seal and adjust to the manufacturer's instructions
- Test closer and locks and hand over evidence
What does composite fire doors cost in Dorset?
As a guide, budget £1,400–£2,600 per composite flat entrance doorset supplied and fitted, ex VAT for composite fire doors. The figure for your Dorset building depends on the number of doors, the rating, the condition of the frames, finishes, hardware and access. We confirm a fixed price after the free survey.
Common questions
Do you provide composite fire doors across Dorset?
Yes. We cover all of Dorset, including Bournemouth and Poole. Surveys and written quotes are free.
Can I add a letterbox to a composite fire door?
Only if the letterplate is part of the certified doorset. Cutting one in afterwards would compromise the door's fire performance.
Do composite fire doors need a closer?
Yes, as flat entrance doors they need a self-closing device that closes and latches them. This can be overhead or concealed, depending on the certified options.

