Table of Contents
- What Office Fit Out Companies in London Actually Do
- Office Fit Out Cost Per Square Metre: What Drives the Number
- Office Fit Out Project Timeline: From Survey to Handover
- Your Office Fit Out Checklist Before Signing Anything
- What a Proper Office Fit Out Quote Should Include
- How to Compare Office Fit Out Companies London Businesses Trust
- Frequently Asked Questions
Last Updated: October 14, 2026
What Office Fit Out Companies in London Actually Do
Office fit out is the process of transforming a bare or dated commercial space into a working environment designed around how a business actually operates. It covers everything from partitioning and ceilings to mechanical and electrical work, joinery, flooring and finishes.
At Anderston Group, we deliver design-led fit outs for workspaces, bars, restaurants and visitor experiences. The scope of a fit out is wider than most first-time buyers expect:
- Space planning and building regulations drawings
- Mechanical and electrical installation
- Partitioning, ceilings and raised floors
- Bespoke joinery and metalwork
- Flooring, decoration and final finishes
The distinction that matters most when you start comparing providers is what sits inside their own team and what gets passed to subcontractors. We carry all trades in-house, which removes the coordination gaps that cause most delays.
Fit Out vs Refurbishment: The Practical Difference
A fit out creates an interior for a new occupier or a change of use. A refurbishment upgrades a space that already functions, often while people keep working in it.
The practical test is simple. If you are changing how the space is used, that is a fit out. If you are improving what is already there, that is a refurbishment.
The distinction affects your programme, your compliance route and your budget. A change of use can trigger fresh building regulations approval, while a like-for-like refurbishment often needs far less. Get this wrong at the briefing stage and you will be pricing the wrong project.
Office Fit Out Cost Per Square Metre: What Drives the Number
There is no reliable single figure for office fit out cost per square metre. Pricing depends on specification, building condition, programme and how much of the existing services you are keeping.
Anyone who quotes you a headline rate before surveying the space is guessing. What you can do is understand the cost drivers and price each one deliberately.
| Cost Driver | What Pushes the Number Up | How to Control It |
|---|---|---|
| Specification level | Feature lighting, specialist finishes, acoustic treatment | Fix a specification tier before tender |
| Building condition | Ageing services, asbestos, structural constraints | Commission a proper survey first |
| M&E scope | New ventilation, power distribution, data infrastructure | Agree the brief in writing |
| Programme | Fast-track working, out-of-hours access | Build realistic lead times into the plan |
| Existing layout | Demolition, making good, waste removal | Price strip-out as a separate line |
Why Two Quotes for the Same Space Rarely Match
Quotes diverge because bidders interpret the brief differently, not because one contractor is overcharging.
One will price a like-for-like replacement of the services. Another will allow for a full upgrade. One has included the strip-out. Another has left it as a provisional sum.
A common mistake is comparing the bottom line without comparing the scope behind it. Before you judge any quote, check that every bidder has priced the same drawings, the same specification and the same programme. If they have not, you are comparing nothing.
Office Fit Out Project Timeline: From Survey to Handover
A typical office fit out runs from initial survey to handover across several distinct phases, and the early stages set the pace for everything after.
The sequence rarely changes, even when the dates do:
- Survey and feasibility. Measured survey, condition report, and an honest view of what the building will allow.
- Design and approvals. Layouts, specification, and building regulations submissions where required.
- Procurement. Long-lead items ordered, trades sequenced, programme locked.
- Construction. Strip-out, first fix, partitions, second fix, finishes.
- Snagging and handover. Defects closed out, documentation issued, keys handed over.
The phase that slips most often is procurement. Specialist joinery, feature lighting and mechanical plant all carry lead times, and no amount of site labour recovers a late delivery.
Your Office Fit Out Checklist Before Signing Anything
A fit out checklist exists to protect you before money changes hands. Run through it while you still have leverage.
- Measured survey completed, not estimated from floor plans
- Building regulations route confirmed for any change of use
- Scope of works written down line by line
- Long-lead items identified with order dates
- Programme with named milestones and dates
- Payment schedule tied to completed stages, not calendar dates
- Named point of contact for the duration of the project
- Snagging procedure and defects period agreed in writing
- Insurance and CDM responsibilities confirmed
- As-built drawings and O&M manuals included at handover
What a Proper Office Fit Out Quote Should Include
A complete office fit out quote is itemised, exclusions are stated, and every assumption is written down. Anything less leaves room for the price to move.
Check that your quote covers:
- Preliminaries. Site setup, welfare, protection, waste removal and cleaning.
- Demolition and strip-out. Priced as a defined scope, not an allowance.
- M&E. Power, lighting, ventilation, data and controls, with the specification named.
- Partitions, ceilings and floors. Systems identified by type and performance.
- Joinery and metalwork. Whether these are made in-house or bought in.
- Finishes. Decoration, flooring and any specialist treatments.
- Exclusions. What is explicitly not included, and why.
- Programme and payment terms. Milestones, stage payments and retention.
The single most useful question you can ask is who carries the risk if an assumption proves wrong. A quote that names its assumptions has already answered that.
How to Compare Office Fit Out Companies London Businesses Trust
Compare fit out companies on capability, transparency and accountability, not on headline price. The cheapest bid is rarely the cheapest project.
Four things separate a contractor worth shortlisting from one worth avoiding.
In-house capability. Ask directly which trades sit on their own payroll and which are subcontracted. Every handover between trades is a place where programmes slip.
How they manage the programme. At Anderston Group, our AI-native project management engine tracks trades, deliveries and dependencies in one place, so the joinery team and the M&E team are working from the same live schedule. That is the specific problem most clients describe from previous projects.
What they have done before. Ask for references from clients with multiple sites, not a single flagship job. Repeat clients are the strongest signal available.
How they handle the unexpected. Listed buildings and constrained structures throw up surprises. Ask what happens when they hit one, and who pays.
On price, expect good contractors to sit above the cheapest bid. What you are paying for is coordination, in-house trades and a finish that does not need redoing. For a full breakdown of how we scope and deliver projects, see Anderston Group's fit out services.
If you want to check the regulatory side before you commit, GOV.UK's building regulations guidance sets out when approval is required, and the Health and Safety Executive's guidance on construction projects explains how CDM duties are split between client and contractor.
Most fit out projects go wrong before anyone lifts a tool: the brief is vague, the scope is unpriced, and the programme ignores lead times. Anderston Group removes that risk by carrying all trades in-house, running every project through an AI-native management engine, and giving you a single point of contact from survey to handover. If you are planning a workspace, bar, restaurant or visitor experience, get started with Anderston Group and take your project from first survey to a finish you are proud to open.
Frequently Asked Questions
How do I choose an office fit out company?
Start by checking whether the contractor carries trades in-holeverage or subcontracts the majority of the work. Ask for two references from projects of a similar size and sector, then request a detailed office fit out quote that itemises M&E, joinery, and finishes separately. Confirm who holds accountability if the programme slips, and get that in writing before you sign. A contractor that answers these questions directly is usually the safer choice.
How much does an office fit out cost per square metre?
Cost per square metre depends on specification, building condition, and how much structural or M&E work is needed. A light refresh sits at the lower end, while a full Cat B fit out with new partitions, services, and bespoke joinery sits considerably higher. Becaleverage no two buildings are identical, ask each contractor to price your actual floor plan rather than quoting a headline rate.
How long does an office fit out project timeline usually run?
A straightforward single-floor fit out typically runs 8 to 12 weeks on site, with design and approvals adding 4 to 8 weeks beforehand. Larger or multi-floor projects, listed buildings, and schemes needing landlord consent take longer. The biggest overruns usually come from late design changes and gaps between the M&E contractor and the joinery team, so build those coordination points into the programme from day one.
What should an office fit out quote include?
A complete office fit out quote should break out demolition, partitions, ceilings, flooring, decoration, mechanical and electrical works, joinery, and any furniture or AV allowance. It should also list exclusions clearly, state the programme duration, confirm who handles building regulations and landlord approvals, and set out payment stages. If a quote arrives as a single lump sum with no breakdown, ask for the detail before comparing it to others.
