Separating doors
Doors between the commercial unit and a residential stair or lobby, such as a rear stockroom door opening onto the flats' route.
Commercial Below, Residential Above
Fire Doors for Mixed-Use Buildings: Shops and Offices with Flats Above
Where a shop, office, café or other business shares a building with flats, the most important fire doors are often the ones between the two uses and on the routes both share. Parsec Fire Doors repairs, replaces and installs those doors, working from the building's fire risk assessment or a specialist fire door report, and planning around both the business and the residents.
Where The Two Uses Meet
A typical high-street building has a commercial ground floor and flats above, reached by a stair that may be shared, separate or partly shared. The doors that matter at the interface depend on the fire strategy and the assessment, not on a standard layout.
Shared stair and lobby doors
Doors on a stair used by residents and, in some buildings, by staff or customers of the business below.
Store, meter and plant doors
Cupboards and plant rooms that open onto a shared route, often serving both uses.
Flat entrance doors
Individual flat doors onto the shared stair. These are covered in detail on our flat entrance door page; here they are considered as part of the overall sequence.
Split Responsibilities Shape The Job
Mixed-use buildings often have several parties involved: a freeholder, a commercial tenant, residential landlords or leaseholders and sometimes a managing agent. Each may instruct, approve or pay for different doors.
Before pricing, we ask the client to confirm who is instructing each door and who must approve access. That keeps the quotation tied to the right party and avoids work stalling because one party was not consulted. We do not give legal advice on who holds which duty.
For wholly commercial multi-let buildings without flats, our page on fire doors for commercial landlords covers the same split between landlord and occupier doors.
- Door list split by the party instructing and paying for each opening
- Named access contacts for the commercial unit and for residents
- Agreed point of contact for approvals and variations
- Completion record sent to every party that needs it
Illustrative Example
Illustrative only, not a completed job: a building has a takeaway on the ground floor and two flats above, reached by a rear stair. A fire risk assessment action list identifies the door from the takeaway's back room onto the stair as damaged and not self-closing, and the flat doors as having worn seals.
A sensible scope separates the two. The separating door is assessed for repair or replacement and programmed outside trading hours, with the stair kept usable. The flat door seal work is arranged through the residential landlord with the residents. Each line in the quotation names who instructed it.
Repair Or Replacement At The Interface
Separating and shared-route doors in older buildings have often been altered: new locks for security, letter plates, removed closers or panels changed during a shopfit. Where the doorset is sound and its construction can be established, these defects can often be put right through repair.
Replacement is more likely where the leaf or frame is badly damaged, alterations cannot be supported, the construction cannot be established for the required performance, or the opening has been changed in a way repair cannot reasonably restore. Security needs of the business are considered within the doorset's supported specification, not by adding unsuitable hardware.
Sequencing Around Trading And Residents
- Residents keep a usable route in and out throughout the works
- Noisy or disruptive work scheduled to suit trading hours where possible
- Commercial security maintained when a separating door is out of service
- Each opening checked for closing, latching and security before handback
- Any opening not completed is reported with the agreed next step
Quotation Input Checklist
Documents
What exists already
Fire risk assessment action list or specialist fire door report, and any previous works or product records.
Layout
Which door serves which use
A sketch or plan showing the commercial unit, the residential parts and the shared routes, with door references.
Parties
Who instructs and approves
Freeholder, commercial tenant, residential landlord, leaseholders or managing agent, and who pays for which door.
Access
Times that work for both uses
Trading hours, deliveries, resident access needs and any key or security arrangements.
Related Pages
Related services and guidance for buildings with more than one use.
Frequently Asked Questions
Plan Fire Door Works In A Mixed-Use Building
Send the action list or report, a note of which doors serve which use, photographs and who is instructing each door. We will provide a written repair and replacement quotation.