For Offices & Workplaces
Office Fit-Outs Your Team Actually Wants to Come In For.
Cat A and Cat B fit-outs. M&E upgrades. Acoustic partitions. Breakout spaces. Delivered out-of-hours and on programme — so your business keeps moving while we build.
Why Office Fit-Outs Go Over Budget and Underperform
Office fit-outs are where vague briefs and underspecified M&E cost the most money. A partition layout that ignores the existing HVAC zone plan means the meeting rooms are either freezing or stifling and nobody books them. A Cat B fit-out that cuts corners on acoustic partitioning means every call from a glass-walled meeting room echoes across the open plan. Lighting that was never redesigned for the new layout leaves half the floor dim and the other half glaring. Most contractors win the job on a low Cat B number and then hit the tenant with VOs every other week as the real brief emerges. The result is a fit-out that goes over budget, overruns the programme and sends staff back to hybrid working because the office is not worth the commute.
RCB exists to be the contractor who reads the M&E before drawing the partition layout — and prices the real brief, not the lowest number that wins the tender.
What RCB Delivers for Offices
An office fit-out is a design project, an M&E project, a programme project and a people project at once — coordinated under one contractor who understands how the building works before the partition layout is drawn.
Cat A & Cat B Fit-Outs
- Cat A base-build works: ceilings, raised floors, M&E first-fix, WCs and core finishes
- Cat B occupier fit-out: partitions, breakout areas, reception, meeting rooms and finishes
- Strip-out and make-good of existing occupier fit-outs to landlord base-build standard
- Landlord and tenant coordination, schedule of condition and reinstatement planning
M&E Upgrades & Sustainability
- Electrical distribution, lighting design and LED upgrades across open-plan and cellular offices
- HVAC upgrades and comfort cooling for modern working densities
- Data and comms infrastructure: server rooms, cable management and patch panels
- EPC improvement works and sustainability upgrades including solar-ready infrastructure
Structural & Layout Changes
- Structural openings and steel frames to open up floor plates or create atrium connections
- Mezzanine floors for additional office area within high-ceilinged commercial space
- Acoustic partitioning and glazed screens for meeting rooms and focus areas
- DDA Part M accessible access, lifts, WCs and reception upgrades
Delivered Around Your Business
- Out-of-hours and weekend working to minimise disruption to trading occupiers
- Phased fit-out so floor-by-floor occupation can proceed on a rolling basis
- Fixed programme with weekly reporting — you always know where the project stands
- Snagging and compliance documentation complete before handover
Three Reasons Businesses Choose RCB
You do not buy a fit-out contractor. You buy a workplace your team performs in and your business grows from.
Solutions
We solve the problems that make office fit-outs expensive after the contract is signed — HVAC zoning, acoustic partition specifications, lighting redesign, data infrastructure and accessible access — under one accountable roof instead of leaving the tenant to discover the gaps.
Convenience
One contractor manages Cat A coordination, Cat B fit-out, M&E, AV, furniture delivery and Building Regulations. Out-of-hours and phased working keeps your business trading. One programme, one point of contact, weekly written updates.
Experience
The result is a workplace your team actually comes in for — well-lit, acoustically controlled, comfortable, practical and ready to use on the day the lease starts, not six weeks after it.
How Your Fit-Out Works
Four stages. One programme. You always know where you are — and when the team moves in.
Brief & Base-Build Review
We review the Cat A base-build, existing M&E, structural drawings and lease obligations. You get a programme and a price based on the real brief — not assumptions about what the space might need.
Design Development
Partition layouts, M&E zoning, acoustic strategy, lighting design and joinery details developed with your workplace designer or by our team. Building Regulations, CDM and fire strategy coordinated from the start.
Fit-Out Delivery
Structural works, partitions, ceilings, flooring, M&E, data infrastructure, joinery, reception, breakout areas and accessible access delivered to programme. Out-of-hours and phased where the building or occupiers require it.
Handover & Occupation-Ready
Full snagging complete, O&M manuals issued, Building Control sign-off in hand and the space ready for occupation on the programme date. No outstanding punchlist on your first morning in the office.
Why Businesses Choose RCB
Accreditations matter to your landlord, your insurer and your board. Here is what we hold.
Independently Verified
All 114 reviews on Checkatrade are from verified clients, and our 9.96/10 rating is independently audited — not self-reported. With 60+ years of combined experience behind the team, you appoint a track record, not a pitch.
Office Fit-Out FAQs
What is the difference between a Cat A and Cat B fit-out and can you do both?
A Cat A fit-out is the landlord base-build — ceilings, raised floors, M&E first-fix, core WCs and basic finishes that leave the space ready for a tenant to fit out. A Cat B fit-out is the occupier layer — partitions, meeting rooms, reception, breakout areas, kitchen, data and finishes specific to the occupier. We deliver both, and we coordinate between landlord and tenant obligations so the Cat B is built on a base-build we have reviewed and understand.
Can you work out of hours to avoid disrupting our team?
Yes. Out-of-hours and weekend working is a standard part of how we deliver occupied office projects. We plan the programme around your trading hours so noisy, dusty or disruptive works happen when the building is empty, and quieter fit-out works can proceed during the day. We coordinate access with building management and give you written weekly updates so there are no surprises.
Can you handle M&E upgrades in an existing tenanted office building?
Yes. M&E upgrades in occupied buildings require careful coordination with building management, existing tenants and the landlord. We isolate services zone by zone, maintain temporary provisions where needed, and manage the programme so other occupiers are not affected. All M&E works are designed, specified and certified to the standards the building insurer and landlord require.
Can you improve the acoustic performance of an existing open-plan office?
Yes. Acoustic performance in open-plan offices is one of the most common complaints and one of the most fixable with the right specification. We assess the existing ceiling, floor and partition system, identify the weak points, and design acoustic treatment — ceiling baffles, acoustic wall panels, partitioning upgrades and glazing specifications — that brings the space to a standard where focus work and calls are actually possible.
Plan Your Office Fit-Out
Tell us about your space, your team size and your occupation date. We will give you an honest view of what it takes to deliver a workplace your business can grow from.