The Site Diary App That Works Straight from WhatsApp
BRCKS is a site diary app built for the way UK construction sites already operate — through WhatsApp. Every site manager, foreman, subcontractor and trade you work with already has WhatsApp on their phone. They already use it to send photos, voice notes and updates from site, every hour of every day. BRCKS turns those messages into a proper construction site diary automatically — dated, photographed, timestamped and filed against the right project — without anyone on site having to download, install or learn a new app.
The result is a daily site diary that actually gets written, every day, by the people on site — because they aren't doing anything different. They're sending the WhatsApp message they were going to send anyway. BRCKS captures it, structures it, files it against the right project, attaches the weather and labour for that day, and produces a clean dated record you can search, export and hand to a client, an insurer or the Building Safety Regulator. Built in the UK for residential builders, principal contractors and site managers tired of reconstructing what happened on site from a six-month-old WhatsApp scroll.
What Is a Site Diary App?
A site diary is the daily record of works on a construction project — the lads on site, the hours worked, the trades present, the weather, the deliveries that arrived, the visitors that turned up, the instructions given, the decisions made and the delays encountered. It is the single most important document on a construction project after the contract itself. It is also the document that is most consistently not written up properly.
A paper site diary fails for the same reason a paper snag list fails: nobody fills it in at the end of a long, wet, twelve-hour day on site. The book gets left in the cabin. The pages get damp. The site manager promises to "catch up on it at the weekend" and then doesn't. Two months later, when a variation lands, a delay is disputed or a defect surfaces, you are trying to reconstruct what happened on a Tuesday in April from a WhatsApp scroll, a stack of unread emails and a vague memory.
A digital site diary app fixes this by removing the friction. A good site diary app captures the day's events as they happen — from the device the team already carries — and files them into a structured, dated, searchable record without anyone sitting down to "do the paperwork". BRCKS goes one step further: instead of asking your team to fill in fields in yet another app, it captures the diary entry from the WhatsApp message they were going to send anyway. That single design decision is why BRCKS site diaries get written, and most standalone site diary apps don't.
Why UK Builders Keep a Site Diary
The site diary is not paperwork for paperwork's sake. It is the legal and commercial backbone of a construction project. Under UK construction practice, a contemporaneous site diary is the primary evidence used to defend — or pursue — a wide range of claims and disputes. If it isn't written down at the time, it didn't happen.
Evidence for delay and variation claims. When a client instructs a change, when bad weather stops work, when a delivery turns up late or a sub fails to show, those events feed directly into extension-of-time claims and variation pricing. Without a dated site diary entry, those claims are almost impossible to defend. With one, they are routine.
Defects and dispute protection. The defects liability period typically runs for 12 months after practical completion. If a defect emerges in month 10, the question is always the same: what did the diary say? Was the work inspected? Was a sign-off recorded? Was an instruction given? A clean site diary closes those questions. A missing one opens them.
Contemporaneous records for the Building Safety Act. For projects in scope of the Building Safety Act 2022, the "golden thread" of information demands accurate, dated, retrievable records of decisions made on site. A site diary app that produces a defensible audit trail isn't a nice-to-have any more — for principal contractors, it is becoming the baseline.
Supporting documentation for insurers and warranty providers. NHBC, LABC, structural warranty providers and project insurers all expect contemporaneous documentation of work as it is carried out. BRCKS produces the exact format of dated, photographed evidence they ask for — without anyone on site doing more work than they already do.
How BRCKS Site Diary Works (from WhatsApp)
- Post updates and photos in WhatsApp as the day happens. The site manager takes a photo of the slab pour, the foreman messages the labour count, the joiner sends through the kitchen sign-off photo. They drop them into the project's BRCKS WhatsApp number with a short caption — "Riverside, 6 lads on site, slab pour finished by lunch". That's all that's required from anyone on site.
- BRCKS timestamps and files them automatically. Every message is captured against the right project, dated, time-stamped and attached to the correct site diary entry for that day. Photos are stored full-resolution. Captions are parsed for project, plot, trade and decision keywords. No manual filing, no end-of-day catch-up, no "I'll do the diary at the weekend".
- Weather, labour and decisions are captured in a structured, searchable record. Each daily entry pulls in the weather for that location, the labour on site, the deliveries logged, the visitors who attended and the decisions made. Everything sits inside the same construction project management record, searchable by date, project, plot, trade or keyword. Need to know what happened on Plot 4 on the 12th of March? Two clicks.
- Export a dated site diary report any time. Generate a clean PDF site diary for any date range, any project — for a client handover pack, for an insurer, for a delay claim, for the Building Safety Regulator. Every entry is dated, photographed and traceable back to the original WhatsApp message that produced it.
Site Diary App Features
Good site diary software isn't about having every field in the brochure — it's about having the few features your site team will actually use, every day, without being chased. Here's what comes with the BRCKS site diary app:
- Daily logs from WhatsApp. Every message, photo and voice note becomes a structured site diary entry against the right project. No forms, no dropdowns, no fields to fill in.
- Photo capture with full resolution storage. Site photos are stored at full quality and attached to the day's entry — not compressed into oblivion the way WhatsApp's own gallery handles them.
- Automatic date and time stamping. Every entry carries the exact date and time of the original message. Contemporaneous by default — exactly what insurers, warranty providers and the courts expect.
- Weather and labour records. Daily weather for the site location is captured automatically. Labour and trades on site are logged from the WhatsApp updates the team is already sending.
- Searchable project history. Filter the diary by date, project, plot, trade, weather or keyword. Find what happened on any day, on any plot, in seconds.
- Exportable PDF reports. Generate a clean dated PDF site diary for any date range — handover packs, delay claims, insurance evidence, Building Safety Regulator requests.
- No app to install — works from WhatsApp. The site team uses what they already have on their phone. Zero downloads, zero logins, zero training. This is why the BRCKS site diary actually gets written.
- Whole-team access. Office staff, PMs and directors view and manage the diary from the BRCKS dashboard. Site teams and subs work from WhatsApp. Everyone sees the same dated record.
Site Diary vs Snagging — and How They Connect
A site diary is the daily record of what happened on site. A snag list is the running record of defects and unfinished items captured during the build and at handover. They are different documents — one is a chronological log, the other is a status list — but they draw from exactly the same source: the photos, messages and updates your team is already posting in WhatsApp.
BRCKS does both. A WhatsApp photo of a hairline crack above a kitchen door becomes a snag against Plot 4 in the BRCKS snagging app — assigned to the decorator, tracked through to close-out, exportable as a handover pack. The same photo also becomes a dated entry in the project's site diary for that day. One message, two records. No double entry, no extra work for the site team.
This matters because the day-to-day events on a construction project and the defects on it are deeply linked. A delay on a slab pour shows up in the site diary; the resulting snag (mis-aligned formwork, surface defect) shows up in the snag list. Having both in one platform, drawing from one source of truth, is what produces a defensible record at handover instead of three half-written spreadsheets.
Frequently Asked Questions
What is a site diary app?
A site diary app is software that captures the daily record of works on a construction project — labour on site, weather, deliveries, visitors, decisions, instructions and progress — and stores it as a dated, structured, searchable record. BRCKS is a WhatsApp-first site diary app: your team posts updates and photos in WhatsApp as the day happens, and BRCKS turns them into structured diary entries automatically.
Is BRCKS a free site diary app?
BRCKS offers a 14-day free trial with no credit card required. After that it's a per-seat subscription for your core office team — subcontractors, trades and clients are always free, with no limit on how many you invite. Full pricing is on our pricing page.
Do I need to install an app?
No. The site team uses WhatsApp — which they already have on their phone. There is no app to download, no account to create, no password to remember and no training day for the lads. Office staff use the BRCKS dashboard in a browser.
Can I export my site diary?
Yes. Every project produces a dated, photographed site diary that exports as a clean PDF for any date range. Use it for client handover packs, delay or variation claims, insurance evidence, NHBC or LABC inspections, and Building Safety Regulator requests.
Does it work for UK residential construction?
Yes — BRCKS is built specifically for UK residential builders, principal contractors and site managers. It supports plot-by-plot diaries on developments, project-level diaries on extensions and refurbishments, and produces an audit trail aligned with NHBC, LABC and Building Safety Act expectations. Built in the UK, used by UK construction teams. Book a demo to see it on your projects.
See BRCKS Site Diary in Action
Stop reconstructing what happened on site from six-month-old WhatsApp scrolls. Start writing the diary as the day happens — without anyone on site doing more work than they already do.
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