How to Quote and Run a Commercial Shop Fit-Out

What you will learn

• Why the licence to alter must run in parallel with design - not after it - to protect the client's opening date.
• How to structure a shop fit-out quote across five cost categories to avoid absorbing M&E and joinery overruns.
• What managed retail environments add to your programme and preliminary costs, and how to price for them.
• The correct trade sequence from strip out to final clean, and why sequence matters more than speed on site.
• How to manage client change requests during a live installation without losing them at final account.
• What to confirm at practical completion to protect your final account and trigger the retention release.

A commercial shop fit-out is one of the most programme-sensitive contracts a fit-out contractor can take on. The client has a lease commencement date, a trading target, and often a seasonal deadline that cannot slip. The quote has to price design uncertainty, landlord approval timelines, and out-of-hours working restrictions that only become clear mid-process. Get the quote wrong and you absorb the gap. Get the programme wrong and you hand the client a delayed opening with a cost claim attached. This guide covers how to quote a shop fit-out accurately, structure the pre-start approvals correctly, and manage the installation without losing programme or margin.

Stage 1: Initial Enquiry, Site Survey, and Design Brief

The first mistake shopfitting contractors make is treating the enquiry as a brief. Most clients who contact you for a shop fit-out quote have a vision, a location, and a budget. What they rarely have is a complete design. You are being asked to price from a description.

Run a site survey before quoting anything. For a leasehold retail unit, that means establishing the condition of the shell, the extent of any existing Cat A services infrastructure, and the specific requirements of the landlord's fit-out guide before you write a single line of your estimate.

1. Obtain the landlord's fit-out guide and the centre's tenant handbook. These govern what you can and cannot build. They vary significantly between landlords and managed centre operators, and pricing without them means pricing blind.
2. Survey the unit shell condition: ceiling height, existing services infrastructure, floor slab condition, means of escape routes, and whether a Cat A fit-out is already in place or the unit is shell-only.
3. Establish the condition of any previous fit-out. Redundant services, legacy M&E, and old data cabling left in the ceiling void are a common source of variation cost when they appear mid-programme.
4. Clarify the procurement route. Are you being asked to deliver design-and-build - single-point responsibility for both design and construction - or to work from drawings already produced by a separate designer? The answer changes how you scope the quote and where you carry risk.
5. Confirm the client's programme target. When do they need to open, and what are the seasonal constraints? A retailer missing a September opening may face a four-month wait before peak trading conditions return.

This survey stage protects you. A quote built without it prices from assumption. The cost of a revisit is always less than the cost of a dispute over what the site actually contained.

Stage 2: Building the Quote

A shop fit-out quote is not a single lump sum. It needs to be structured by cost category so that both you and the client can see where the money goes and where risk sits. A lump-sum quote is harder to defend when scope changes, harder to compare against a competitor's offer, and harder to use for your own job costing once the project is running.

Five categories every shop fit-out quote should separate:

Shopfront and entrance. This covers entrance configuration, shopfront glazing, door hardware, and any structural works at the threshold. It is often the most constrained element in the quote because the landlord's fit-out guide typically specifies where the shopfront line sits and what materials and projection tolerances are permitted. Do not price this section until you have those requirements in front of you.

Bespoke joinery and fixtures. Counters, display units, cash desks, and built-in shelving. Bespoke items typically carry lead times of six to ten weeks from design sign-off to site delivery - that is the range most contractors experience, though your suppliers will vary. Price them as a discrete package and flag the lead time explicitly in the programme. A joinery package that arrives at week nine of a ten-week programme will derail everything that follows it.

M&E services. Lighting, power distribution, data cabling, HVAC modifications, and fire alarm alterations. Industry data for commercial fit-outs indicates M&E typically accounts for 15-20% of total project cost. It is also the category most likely to encounter unforeseen conditions once the ceiling void is opened. Price M&E against a clear scope of works that identifies what is included and qualifies any areas subject to survey findings.

Finishes. Flooring, wall finishes, painting and decoration, and any internal signage within your scope. Clarify at quote stage whether external or window signage falls within your supply or is handled separately by the client's brand team.

Preliminaries and managed environment costs. If the unit is in a shopping centre or retail park, managed environment working restrictions carry costs a high-street unit would not. Centre-specific hoarding to the operator's specification, contractor pre-registration, out-of-hours access booking, and delivery restrictions all add programme time and cost that must be priced into the quote rather than discovered later.

For contingency, a commercial fit-out in a unit whose condition is fully known typically requires 8-12% of the total project value. For older units where the services condition is uncertain before the ceiling is opened, allow up to 15%.

Stage 3: Landlord Approval and Pre-Start Compliance

One of the most reliable ways for a shop fit-out to slip its opening date is to treat landlord approval as a stage that begins after the quote is accepted. It is not. Landlord approval runs in parallel with design, and the earlier you start it the less likely it is to collapse the programme.

A licence to alter is a legal document, drafted by solicitors and executed by both parties before structural works can begin. Four to eight weeks from full submission is a realistic planning assumption. Landlord concept approval on the layout and shopfront design takes two to six weeks on a straightforward unit - longer where a managed centre reviews shopfronts through a design panel. Starting either process after the client has accepted your quote adds weeks to the critical path before you have broken ground.

1. Obtain the licence to alter documentation from the landlord's solicitors and confirm which elements of the works require formal consent and which fall within permitted alterations under the lease.
2. Submit for centre concept approval and confirm the drawing format the landlord requires. Common rejection reasons include shopfront zone line breaches, illuminated signage exceeding the centre's permitted lux levels, fire strategy alterations not shown in the submitted drawings, and missing structural sign-off for any suspended elements.
3. Confirm building regulations requirements. Structural alterations, fire alarm modifications, and electrical works each carry their own notification obligations.
4. Agree out-of-hours working arrangements with the centre management team. Managed centres restrict noisy and dusty work to specific overnight windows. Book these slots as early as your programme allows - they fill up, particularly in the weeks before key retail trading periods.
5. Confirm that RAMS have been reviewed and accepted by the centre before any works start on site.

Stage 4: Programme, Trade Coordination, and On-Site Delivery

A shop fit-out programme is a compressed sequence of trades working in a small space, often overnight. It is not a schedule of when work will happen - it is a constraint map showing what needs to be complete before the next trade enters, and how the client's lease commencement date drives every decision in it.

Sequence matters more than speed. The failure mode is a trade starting before the preceding work is complete, or bespoke joinery arriving before the first fix electrics are done. Both produce the same outcome: a hold, a programme slip, and a client with staff inductions booked for a shop that is not ready.

The typical shopfit trade sequence:

• Strip out and demolition of any existing fit-out, confirmed in writing against the landlord's requirements for what must be removed and what must remain
• First fix M&E: containment, cabling, pipework, and conduit before ceilings and walls are closed
• Partitioning and drylining where required by the design
• Shopfront installation, which often requires overnight delivery and hoisting equipment
• Ceiling installation, which closes out first fix M&E
• Bespoke joinery and fixture installation - allow a full day for transport and installation of anything manufactured off site
• Flooring, which must follow joinery to avoid damage during installation
• Second fix M&E: luminaires, socket plates, data outlets, and commissioning
• Signage installation, typically requiring shopfront access and working at height
• Decoration and final finishing works
• Final clean and handover inspection

For managed retail environments, each trade entry may require a contractor induction with the centre management team. Build induction time into the programme from the start.

Stage 5: Snagging, Practical Completion, and Final Account

A shop fit-out's practical completion is more consequential than most other construction contracts. The client's opening date depends on it. The landlord's licence to alter conditions reference it. The moment practical completion is certified, the defects liability period begins and the retention clock starts.

Carry out your own internal snagging walk before you invite the client. A contractor-completed snag list, resolved before the handover walk, produces fewer disputes and a cleaner handover than a list built jointly with the client at the final inspection.

1. Issue your completed snag list to the client in writing ahead of the handover walk. Any items the client adds at the walk should be assessed against the original scope before acceptance - items that fall outside the agreed scope are variations, not defects.
2. Confirm that M&E commissioning records and any required electrical certification are ready to hand over. The landlord's licence to alter conditions will typically require these documents before the licence is discharged.
3. Confirm that all variation orders agreed during the works are documented and signed off. Works carried out at the client's verbal request but not confirmed in writing are difficult to invoice for after practical completion is signed.
4. Issue the final invoice once practical completion is formally confirmed. A retention of 3-5% of the contract value is typical in commercial fit-out contracts, held until the defects liability period expires - usually six to twelve months after practical completion.
5. Retain as-built drawings and any O&M documentation required by the licence to alter conditions. These are part of your handover obligation, and withholding the retention release pending their delivery is a standard landlord response when they are missing.

A commercial shop fit-out rewards contractors who do the planning work before the programme starts. The contractors who lose margin on these jobs typically quoted before the survey was complete, started without landlord approval in place, or agreed changes verbally and could not recover them at final account. The process set out here does not remove the complexity of shopfitting - it gives you a structure for managing it without absorbing cost that should belong to someone else. For fit-out contractors looking to manage quotes, variation orders, and job costs from one place, Zigaflow supports the full process from initial quote through to final account.

Sources

• Commercial Fit-Out Cost Breakdown - A Real UK Office RefurbishmentRapidQS UK · accessed 2026-08-23
• Specialist Costs: Retail Fit-OutBuilding (Davis Langdon / Neal Kalita) · accessed 2026-08-23
• Landlord Approval for Retail Fit-Outs: A Practical GuideOllywood Services · accessed 2026-08-23

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