One bar of signal
Capture queues on the phone and syncs when the signal comes back. Nothing is lost, nothing waits.
Construction software development — senior UK teamConstruction software
Construction software
that runs the whole job.
Timesheet on site → approval → valuation → CIS payroll. One unbroken chain instead of Excel, WhatsApp and paper — built by the team that runs its own construction platform, VALEGRID FLOW, in production.
VALEGRID Flow— the platform your subscription runs onFrom £29/mo
Subscription — no five-figure build cost
CIS-correct
HMRC-aligned to the penny
Field-proven
Running on live sites now
How the product works
From a photo on site to a figure on a payslip.
Every step references the one before it — one audit trail, no double entry, no end-of-month scramble.
01Capture on site
Hours + photos, ten seconds, gloves on
02Approve
Manager signs off, record locks
03Valuation
Approved time rolls up automatically
04Invoice & CIS payroll
Deductions computed to the penny
Sound familiar?
The patchwork is costing you every week.
Today — Excel, WhatsApp & paper
- The same hours keyed in three times — site, office, payroll
- Photos of finished work buried in a WhatsApp group
- CIS deductions worked out by hand, hoping HMRC agrees
- No idea if the job is still making money until it's finished
- CSCS cards and insurance lapse — you find out from the auditor
With one connected system
- Entered once on site, flows everywhere it's needed
- Every photo tied to a project, a plot, and a date — searchable
- CIS calculated automatically: verified, unverified, gross status
- Labour cost and margin per project, live, at a glance
- Expiring documents flagged weeks before they bite
CIS, done properly
CIS is where generic software quietly breaks.
Get the rate or the rounding wrong and you have an HMRC problem, not a spreadsheet problem. We compute deductions in integer pence with HMRC's own rounding convention, track verification status, and tie every deduction to the timesheet that produced it.
That's the difference between software that looks right in a demo and software that survives a compliance check.
30%Unverified20%Verified0%Gross status
CIS calculation
Verified — 20%- Labour
- £1,000.00
- Materials
- £150.00
- CIS @ 20% of labour
- −£200.00
- Net payment
- £950.00
Integer-pence arithmetic, HMRC-aligned rounding — linked to source timesheet
Built for the field
Designed for a half-built floor, not a desk.
Software that isn't used is worse than no software. So we design for the person actually entering the data.
Gloves-on UX
Big touch targets, fast forms. A new subcontractor submits their first timesheet on day one, untrained.
Ten seconds, done
Site teams give you ten seconds, not ten minutes. The app takes what it needs and gets out of the way.
What we build
The operational spine, end to end.
Site & project operations
Projects, assignments, daily logs, and work areas modelled around how site teams actually work — not a generic CRM bent into shape.
Timesheets & approvals
Mobile timesheet capture, manager approval workflows, and locked records that feed straight into payroll and valuations.
CIS & payroll
Construction Industry Scheme deductions handled correctly — verified vs unverified rates, integer-pence arithmetic, HMRC-aligned rounding.
Compliance tracking
Document expiry tracking for certifications, insurance, and method statements — flagged before they lapse, not after.
How we execute
Working software in weeks — proven on your sites.
- 01
Discovery on site
We spend time with the people who will actually use the tool — on site and in the office — to map how work really flows, not how an org chart says it should.
- 02
Model your operations
We model your projects, crews, subcontractors, rates and CIS rules precisely, so the software fits your operation instead of forcing your operation to fit it.
- 03
Build the core
We build the operational spine first — capture, approval, valuation, payroll — in iterative cycles with working software you can try at every stage.
- 04
Roll out to crews
We roll out to real crews with onboarding designed for non-office staff, fix the friction we find, and only then layer on reporting and integrations.
- 05
Run, support & improve
You go live on a simple monthly subscription — we host it, support it, and keep improving it, so every upgrade lands in your account without a project or an invoice.
What you get
Outcomes, not just output.
- Hours of weekly admin removed from site managers and the back office
- Labour cost and margin visible per project, in real time
- An auditable record for HMRC, clients, and due diligence
- One predictable monthly subscription — hosting, support, and every upgrade included
For the detail-minded
The engineering deep dive.
Everything above, argued properly — why construction runs on spreadsheets, what it costs, and how we build the replacement.
Why construction runs on spreadsheets — and what it actually costs
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.
CIS is where generic software quietly breaks
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.
Built for the field, not the office
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.
From timesheet to valuation to payment — one unbroken chain
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.
Compliance and document control that defends you
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.
Questions
Frequently asked.
Can it handle CIS deductions correctly?
Yes. CIS is a first-class concern, not a bolt-on. We model verified (20%), unverified (30%) and gross-payment subcontractors, calculate deductions in integer pence with HMRC-aligned rounding, and keep an immutable record of every deduction tied to its source timesheet.
Will it work on site with poor signal?
We design construction tools mobile-first and connectivity-tolerant: fast forms, photo capture that queues and syncs when signal returns, and a UX simple enough to use with gloves on. The data structure lives in the office; the capture experience lives on site.
How much does it cost?
A monthly subscription instead of a five-figure build project. Sole traders get a flat Solo package at £29/month with a 14-day free trial. For companies, pricing is agreed individually around your team, sites, and how much you lean on the AI — book a call and we'll give you a clear price.
Do we own the software and the data?
Your data is yours completely — export it whenever you like, and take it with you if you ever leave. The software itself is provided as a subscription rather than a one-off build you buy outright: you skip the huge upfront cost, and hosting, maintenance, and every improvement we ship are included in the monthly price.
Can it integrate with our accounting software?
Yes. We routinely integrate with Xero, QuickBooks and Sage, and can export payroll and valuation data in whatever format your accountant or bureau needs.
How is this different from generic project-management tools?
Generic tools have never heard of a subcontractor, a retention, or a CIS return. We model construction operations specifically — informed by running our own construction platform, FLOW, in production.
How long until our crews are actually using it?
We build the operational core first and roll it out to real crews early, rather than disappearing for a year. You see working software in weeks, and we iterate on the friction we find in the field.
Replacing spreadsheets for site management?
Book a 30-minute scoping call with a senior engineer who has actually built construction software. We'll map the fastest route from your current chaos to a system that runs itself — and give you a clear monthly price for your size of operation.