Construction software development, built by people who've shipped it.

Construction is one of the least digitised industries in the UK, and it is not because the people in it are behind the times. It is because the software built for them is either a £200-per-seat enterprise behemoth designed for a national contractor, or a generic project-management tool that has never heard of a subcontractor, a retention, or a CIS deduction. So firms do the rational thing: they fall back on Excel, WhatsApp, and a filing cabinet.

The cost of that patchwork is invisible until you add it up. The same timesheet data is keyed in three times — once on a paper sheet on site, once into a spreadsheet in the office, once into payroll. Photos of completed work sit in a WhatsApp group that nobody can search. A quantity surveyor spends a full day every week assembling a valuation from messages and memory. And because the data lives in five places, nobody can answer the one question that matters: are we still making money on this job?

Custom software does not just digitise the paperwork. It removes the double entry, makes the data searchable and auditable, and surfaces margin in real time — so the answer to that question is a glance, not a day of detective work.

The Construction Industry Scheme is the fault line that separates software built for construction from software bent to fit it. Under CIS, a contractor must deduct tax at source when paying a subcontractor — 20% for a verified subcontractor, 30% for an unverified one, and 0% for those with gross-payment status — then file a monthly return to HMRC. Get the rate wrong, or the rounding, and you have an HMRC problem, not a spreadsheet problem.

Generic tools treat this as an afterthought, if they handle it at all. We treat it as a first-class concern, because we had to: FLOW computes CIS deductions in integer pence using Math.floor rounding to match HMRC's own convention, tracks subcontractor verification status, and keeps an immutable record of every deduction tied to the timesheet that produced it. That is the difference between software that looks right in a demo and software that survives a compliance check.

When we build for you, this rigour is the baseline. We model your actual payment flows — verified and unverified subcontractors, retentions, reverse-charge VAT — rather than forcing your operation into a generic invoicing screen.

The person entering the data is standing on a half-built floor with one bar of signal and gloves on. If your software assumes a desktop, a stable connection, and an accountant's patience, it will not get used — and software that is not used is worse than no software, because now your data is half in the system and half in someone's head.

We design construction tools mobile-first and tolerant of bad connectivity: fast forms, large touch targets, photo capture that queues and syncs when signal returns, and a UX simple enough that a new subcontractor can submit a timesheet on day one without training. The office gets structure and auditability; the site gets something that takes ten seconds and then gets out of the way.

The value of a construction platform is not any single feature; it is that the operational chain finally connects. A worker submits hours and photos on site. A manager approves them. Approved time locks and flows into a weekly valuation. The valuation becomes an invoice and a payroll run, with CIS already calculated. Every step references the one before it, so there is a single audit trail from a photo on site to a figure on an invoice.

That chain is what kills the double entry and the end-of-month scramble. It is also what gives you, the owner, real-time labour cost and margin per project — because the numbers are a by-product of work already being recorded, not a separate reporting exercise you have to chase.

Construction lives or dies by documents that expire: CSCS cards, insurance certificates, RAMS, method statements, plant certifications. Tracking them in a spreadsheet means finding out they have lapsed when an auditor or a client asks — exactly the wrong moment. We build expiry tracking that flags documents before they lapse, ties them to the worker, project, or piece of plant they belong to, and keeps an audit trail you can hand to a client, an insurer, or HMRC without a week of preparation.