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What a build of this size actually buys you.

Five projects walked through properly: the situation, what got built, what it cost, and the hard part that surfaced in week two rather than week twenty. Most case studies leave that last one out, which is precisely why nobody believes them.

Clients are described by sector rather than named, because for most of them the system is a competitive advantage. Want to speak to one of them before you commit? Ask, and an introduction gets arranged.

01Plant hire, four depots

Quoting and invoicing that matched the contracts

How the 17 weeks went

  • Getting to the truth1w
  • Shaping it2w
  • Building it10w
  • Proving it3w
  • Going live1w
Cost
£71,000
Live in
17 weeks
Used by
35 people

The situation

Two people could price a hire properly and both were on the road. Quotes waited days. Invoicing ran on a spreadsheet that rebuilt the consolidated monthly accounts for their four largest customers by hand, and the busiest month was always the month it went wrong.

What got built

  • Their real rate card, including customer-specific rates, long-hire tapers and damage waivers
  • Quotes any of the counter staff could produce in minutes, with margin shown while writing them
  • Consolidated monthly accounts across depots, produced automatically and posted to Xero
  • Chasing that stopped the moment a payment landed

The hard part, found early

Their ledger held six years of hires under three different rate regimes. Working out which regime applied to a given historic line took longer than building the pricing itself, and we said so in week two rather than week twenty.

What changed

  • Quotes out the same day instead of the same week
  • Four days a month of invoicing work gone
  • Debtor days down by a fortnight inside two quarters

02Refrigeration maintenance

Everything about a job, from the call to the invoice

How the 26 weeks went

  • Getting to the truth2w
  • Shaping it3w
  • Building it15w
  • Proving it4w
  • Going live1w
Cost
£118,000
Live in
26 weeks
Used by
40 people

The situation

A job passed through four systems and two paper forms between the customer ringing and the invoice going out. Engineers filled in sheets somebody retyped. Nobody could say what a job had actually cost until weeks afterwards, by which point the unprofitable contracts had already been renewed.

What got built

  • One record per job, with the site's full asset history on the engineer's phone
  • F-Gas records captured on site and held against the unit rather than the visit
  • Photos, readings and customer signature before the van left
  • True cost per job, per customer and per engineer, visible the same day

The hard part, found early

The engineers had been given a system before and had quietly gone back to paper. We spent the first week in vans rather than in meetings, and the result has two fewer taps per job than the paper sheet did. That is the only reason it is used.

What changed

  • Paperwork finished on site rather than on Friday
  • Two contracts renegotiated once their real cost was visible
  • Compliance evidence produced in minutes instead of days

03Professional membership body

Off a system nobody understood any more

How the 22 weeks went

  • Getting to the truth2w
  • Shaping it3w
  • Building it13w
  • Proving it3w
  • Going live1w
Cost
£94,500
Live in
22 weeks
Used by
6,800 members

The situation

Twenty-two years of membership records in a system whose supplier had been bought twice and whose last expert had retired. No support, no upgrade path, and a renewal process run on exported spreadsheets. Everyone was frightened of touching it.

What got built

  • Every record brought across, including the concessions and life memberships nobody had documented
  • Renewals, failed payments and card expiries handled without a person in the loop
  • Members managing their own details, their own corporate colleagues and their own payments
  • The old records readable afterwards without paying to keep the old system running

The hard part, found early

The export the supplier offered was missing the joining dates, which drove eligibility for three categories. Getting at those meant reading the underlying records directly, and it added five weeks. It was found during discovery, which is the only reason it did not derail the launch.

What changed

  • Renewal collection up, with nobody chasing
  • A membership figure that is right this morning rather than at the last export
  • The annual audit reduced from a fortnight to an afternoon

04Specialist recruiter

A customer system that fitted how they actually sold

How the 19 weeks went

  • Getting to the truth2w
  • Shaping it2w
  • Building it11w
  • Proving it3w
  • Going live1w
Cost
£86,000
Live in
19 weeks
Used by
55 people

The situation

They had bent a well-known CRM for six years and lost. Half the consultants kept private spreadsheets because the fields did not match what they needed to record, and the board pack took three days to build from exports nobody quite trusted.

What got built

  • Their own stages, their own compliance gates, and rules about what must be true before a placement can progress
  • Every conversation attached to the candidate and the client, surviving a consultant leaving
  • Right-to-work and certification evidence held against the person, with expiry warnings
  • The board pack produced on its own, on the first of the month

The hard part, found early

Two of the private spreadsheets turned out to contain genuinely better process than anything in the CRM. Those got built as they were rather than normalised away, which is the sort of thing that only comes out of sitting with people.

What changed

  • No private spreadsheets left, because nothing needs one
  • New consultants productive in days rather than weeks
  • One set of figures the board stopped arguing about

05Building services contractor

Reading the supplier invoices instead of keying them

How the 15 weeks went

  • Getting to the truth1w
  • Shaping it2w
  • Building it9w
  • Proving it2w
  • Going live1w
Cost
£62,000
Live in
15 weeks
Used by
12 people

The situation

One person spent most of a week keying supplier invoices and delivery notes into the accounts system. Accurate enough, until it was busy. Finding an original later took half an hour, and duplicate payments were caught by luck rather than by process.

What got built

  • Invoices read as they arrive in the inbox, with the figures extracted and coded
  • Each one checked against the purchase order and the delivery note before anything posts
  • Only the genuinely uncertain reaching a person, with the original alongside
  • Every original findable in seconds by what is in it

The hard part, found early

Accuracy on their own documents was measured during shaping and came out lower than the figure the market quotes, because a third of their delivery notes are photographs of carbon copies. The threshold was set accordingly, and the honest number was in front of them before they committed.

What changed

  • Four days a week of keying in given back
  • Duplicate payments caught before they are made, not after
  • Month end no longer waits on the invoice pile

06A pattern worth noticing

In every one of these, the thing that could have derailed it surfaced in the first fortnight rather than the last. That is not luck. It is what discovery is for, and it is why it stays in the plan however keen you are to start.

Put a date on it.

Half an hour with whoever would build it gets you the shape of the work, a figure you can take to your board, and the week it could start. No deck, no discovery fee, no follow-up sequence.