100%
of projects delivered on time and on budget
across every brief to date
Box3 is a London-based Fit out contractor working across workplace, retail, hospitality and education.
Most of our work comes from clients we've delivered for before. We've kept it that way on purpose: we'd rather build deeper relationships across fewer projects than chase volume.
What we do
- 01Office fit-out (Cat B)Integrating partitions, joinery, lighting, flooring and furniture into a complete workplace after the Cat A shell is in place.
- 02Office refurb (Cat A)Foundational landlord finish — the blank canvas. Tier 1 subcontractors and a tight schedule so tenants can occupy quickly.
- 03Design & BuildSingle-team delivery from brief to hand-over. One contract, one point of accountability, fewer hand-offs.
- 04Refurb in occupationPhased works inside live, occupied buildings — segregation, hoardings, and out-of-hours scheduling so the day job keeps running.
Track record
90%
of new work comes from clients we've delivered for before
calendar year 2025
180+
years of combined fit-out experience across the senior team
leadership + project leads
£10m
project ceiling, with PI / EL / PL insurance to match
London + South East
100%
of projects delivered on time and on budget
across every brief to date
90%
of new work comes from clients we've delivered for before
calendar year 2025
180+
years of combined fit-out experience across the senior team
leadership + project leads
£10m
project ceiling, with PI / EL / PL insurance to match
London + South East
Process
01
Meet
We start with a conversation. The brief gets shaped in the room — what the space needs to do, what the building allows, what the budget really means. No prepared decks; we'd rather understand the problem first.
02
Design
A simple working model of the project — drawings, key materials, a clear spec. Enough detail to talk seriously with the supply chain, light enough to keep changing as the brief tightens.
03
Estimate
An honest cost and programme forecast. Tendered against vetted subcontractors, with the trade-offs called out where they matter. Contract signed before any work starts on site.
04
Construction
A senior project manager on site, every day. Quality controlled against the spec, programme tracked against the contract. Weekly updates so the client never has to chase for status.
05
Close out
Soft-landing handover — full documentation, warranties, snag-list cleared. We stay reachable for the first months of occupation; what gets logged on day one shapes how the space holds up at year five.
01
Meet
We start with a conversation. The brief gets shaped in the room — what the space needs to do, what the building allows, what the budget really means. No prepared decks; we'd rather understand the problem first.
02
Design
A simple working model of the project — drawings, key materials, a clear spec. Enough detail to talk seriously with the supply chain, light enough to keep changing as the brief tightens.
03
Estimate
An honest cost and programme forecast. Tendered against vetted subcontractors, with the trade-offs called out where they matter. Contract signed before any work starts on site.
04
Construction
A senior project manager on site, every day. Quality controlled against the spec, programme tracked against the contract. Weekly updates so the client never has to chase for status.
05
Close out
Soft-landing handover — full documentation, warranties, snag-list cleared. We stay reachable for the first months of occupation; what gets logged on day one shapes how the space holds up at year five.