The patchwork
Photos on phones, drawings in drives, CIS in a spreadsheet. Fine until something goes wrong.
About SiteOS
“A job file should survive the person who left site on Friday.”
Photos, decisions and money trails stay on the project, not in private chats that leave with the person.
1
price per company
Unlimited people & jobs
UK
CIS & retention
Built in, not bolted on
90
day free trial
Full product, no card
Why we built it
UK builders deserve better than patchwork tools
Most yards already have the pieces, a diary somewhere, drawings somewhere else, CIS in a spreadsheet. It works until a variation is disputed, an insurer asks for evidence, or retention falls out of sync with the site.
We built one job file so site and office work from the same record: evidence on the ground, compliance in the middle, and commercial close-out at the end. UK practice is assumed, not bolted on as an afterthought.
The problem we solve
When the person who held the evidence leaves site, the job should not fall apart. SiteOS keeps diary, drawings, commercial and compliance on the project.
See how it worksHow we got here
From patchwork to one job file
Most teams do not start from zero. They start from tools that almost work, until one job proves they do not.
The break
A disputed variation, an insurer asking for evidence, or retention that does not match the site.
The job file
One record for site and office, evidence, compliance and commercial close-out together.
Who builds SiteOS
Built in the UK for site and office
SiteOS team
UK product · construction software
We have run sites and month-end close-outs. SiteOS exists because patchwork tools fail when evidence, compliance and commercial records need to stay on the job - not in private chats that leave with the person.
Who we build for
Built for UK builders
- Extension specialistsLofts, wraps & refurb
- Main contractorsPackages & new build
- Fit-out teamsLight commercial
- Renovation yardsHeritage & period
What we believe
Principles behind the product
One job, one file
Diary, drawings, snags, CIS and invoices should hang off the same project, not three folders and a group chat.
UK rules in the product
CIS, retention and Construction Act payment notices are not nice-to-have add-ons for British builders.
Site and office together
Software that only works in the office fails on Monday morning. Software that only works on site fails at month-end.
Next step
See the job file on a live demo
Walk the Oak Road extension with diary, snags, CIS and invoices pre-loaded, or start a 90-day free trial on your own company.