What happens on site, management knows the same day.
BIW is the job-site control system for construction companies: daily progress with photos, chapter-by-chapter budgets, subcontractor progress billing and site payroll, with every approval recorded under the name of whoever gave it.
Built for Colombian operations: AIU or full-VAT contracts, advance payments and retention, statutory benefits and public holidays.
BIW Up to date
Budget control by chapter
Project
Residential building · Tower 2
As of
Sep 30, 2026
Sample figures
| Chapter | Budget | Spent | % spent |
|---|---|---|---|
| 01Foundations | $640,000,000 | $505,600,000 | 79 % |
| 02Structure | $1,920,000,000 | $1,574,400,000 | 82 % 80 % alert |
| 03Masonry | $410,000,000 | $168,100,000 | 41 % |
| 04Plumbing | $365,000,000 | $401,500,000 | 110 % Locked |
| 05Finishes | $1,150,000,000 | $92,000,000 | 8 % |
| Total | $4,485,000,000 | $2,741,600,000 | 61 % |
Past 110 % the chapter stays locked until the director approves it.
01Day to day
What today depends on a spreadsheet and someone's memory
BIW doesn't invent a new process for your team. It takes the one you already run and adds the checks that today depend on someone reviewing in time.
Today
With BIW
- Site progress
- TodayEvery site engineer sends a spreadsheet on Friday and someone at the office merges them by hand.
- With BIWThe site engineer logs the day's progress per activity, with a photo. The running total calculates itself against the schedule; if the delay passes 5 %, the project director hears about it.
- Budget
- TodayA chapter's overrun shows up once the money is already spent.
- With BIWEvery chapter warns at 80 % executed and locks at 110 % until someone with authority approves it.
- Subcontractor billing
- TodayQuantities that exceed the contract are discovered when the contract is closed out.
- With BIWA progress bill can't include quantities beyond the contract without a request approved by the director. Advance and retention are deducted automatically.
- Approvals
- TodayPayment orders get approved over WhatsApp, and later nobody knows who said yes.
- With BIWFinance files it, the director approves it, and management steps in above the threshold. Who, what and when stay on record.
- Crew and payroll
- TodayAttendance lives on a paper sheet and site payroll on a different spreadsheet.
- With BIWClock-in and clock-out with the time, overtime that's paid only once the director approves it, and site payroll calculated from that attendance.
- Drawings and documents
- TodayThe current drawing is in someone's inbox, and nobody is sure which version is the latest.
- With BIWEvery document keeps its versions by project and discipline. The previous one is archived, never deleted.
Control, in one curve
Planned against actual, month by month. What the site engineer logs today moves the curve today, and the gap shows before it becomes a problem.
BIW
S-curve · cumulative progress
Project
Tower 2 · structure
As of
Month 7 / 12
Sample figures
Actual progress comes from the site's daily logs; nobody types it into the curve. Past 5 % delay the director is alerted; past 10 % the alert turns red.
Thirteen modules, end to end on the job site
02Platform
Everything on the job site, in one system
Thirteen modules that talk to each other: what the site engineer logs is the same thing finance pays and management reviews.
1Site
- 1.1
Progress and schedule
Daily log per activity and work front, actual-vs-planned Gantt and delay alerts.
- 1.2
Site log and evidence
Photos on every entry and PDF and Excel reports ready for the site meeting.
- 1.3
Incidents
Reports with evidence, response times by severity and the director's decision.
- 1.4
Weather and stoppages
Daily record of rain and work stoppages, with the man-days lost.
2Money
- 2.1
Budget and unit-price analysis
Chapters, line items and unit-price breakdowns, with alerts at 80 % and a lock at 110 %.
- 2.2
Contracts and progress billing
Contracts with AIU or full VAT, change orders, progress bills and close-out.
- 2.3
Owner billing
What's been billed to the project owner, item by item, with the running total.
- 2.4
Purchasing and payment orders
Purchase orders, invoices and payments with their approval route.
3People
- 3.1
Crew and attendance
One record per worker across the company; clock-in and clock-out on each site.
- 3.2
Site and office payroll
Calculated from attendance, with statutory benefits, the director's review and pay stubs.
4Records
- 4.1
Documents and drawings
Folders per project, versions by discipline and expiry alerts.
- 4.2
Official letters
Numbered per project and per year, with the PDF ready to file.
- 4.3
Equipment and rentals
Inventory, transfers between sites and alerts for rentals about to expire.
03Progress billing
A subcontractor progress bill the way your team does it, without the hand math
The document is the one your site engineer and director already know. The difference is what BIW checks before it reaches payment.
BIWStructural detail · typical frame
Not to scale · what bill no. 04 charges for
BIW
Progress bill no. 04
Sample figures
Subcontractor
Estructuras del Norte S.A.S.
Contract
CTR-0012
Period
Sep 1 – 30, 2026
| Item | Description | Unit | Contracted | Previous | This bill | To date | Amount |
|---|---|---|---|---|---|---|---|
| 2.01 | Column concrete 4000 psi | m³ | 120.00 | 64.50 | 18.20 | 82.70 | $20,930,000 |
| 2.02 | Reinforcing steel 60,000 psi | kg | 38,000.00 | 21,400.00 | 6,850.00 | 28,250.00 | $42,470,000 |
| 2.03 | Waffle slab, 0.40 m | m² | 1,800.00 | 720.00 | 410.00 | 1,130.00 | $76,260,000 |
| 2.04 | Beam concreteOver contract by 3.00 m³ | m³ | 85.00 | 79.00 | 9.00 | 88.00 | Held |
- Work subtotal
- $139,660,000
- Administration 8 %
- $11,172,800
- Contingency 2 %
- $2,793,200
- Profit 5 %
- $6,983,000
- VAT on profit 19 %
- $1,326,770
- Gross total
- $161,935,770
- Advance repayment 30 %
- − $48,580,731
- Retention 5 %
- − $8,096,789
- Net payable
- $105,258,250
Approval route
Draft
Site engineer
In review
Evidence attached
Approval
ApprovedPendingProject director
Against the contract
Each item shows what has been executed against the agreed total, bill after bill.
Overruns don't get through
If the running total exceeds the contract, the amount is held until the director approves a quantity request.
AIU from the contract
Administration, contingency and profit come from the contract. If it's a full-VAT contract, it's billed that way. Nobody recalculates it.
Deductions on their own
The advance is repaid and retention is withheld on every bill, with no side spreadsheets.
Named sign-offs
The bill moves from draft to review to approved, and every step is recorded under the name of whoever gave it.
04Who it's for
Everyone in the company has their place
Everyone works on the same information, but each person sees and approves only their part.
| Role | What they do in BIW | What they see |
|---|---|---|
| Management | Approves scope and budget changes, and payment orders above the threshold. | What they see:Every project: progress, spend and margin. |
| Project director | Approves progress bills, payment orders, overtime and payroll for their projects. | What they see:The projects they run. |
| Site engineer | Logs the day's progress with photos, incidents, weather and stoppages. | What they see:Their project. |
| Finance | Runs the budget, invoices, payment orders, payments and costs. | What they see:Every project, to pay and to cost it. |
| Human resources | Keeps each worker's record, their contracts, and office and site payroll. | What they see:Everyone on the company's staff. |
| Subcontractor | Checks their contracts, their progress bills and the status of their payments. | What they see:Only their own. Never another subcontractor's. |
05Onboarding
How we start with a construction company
No months-long projects or endless consultants. One project first, with its team, then the rest.
- 01
A conversation about your operation
You tell us how you control your projects today: which files you use, who approves what, and where information gets lost.
- 02
Loading what you already have
We bring your budget, subcontractors and staff into BIW from the files you already keep. Nobody re-types everything.
- 03
Roles and approvals that fit you
We set who approves a progress bill, from what amount management steps in, and what each person sees, following your org chart.
- 04
A pilot on one project
We start with one project and its team, and stay close to the site engineer and the director in their first weeks.
- 05
The rest of your projects
Once the pilot is running, we add your other projects and the office team: finance, human resources and management.
06Security
Your company's information, kept in its place
- Your own address
- Your team signs in at yourcompany.usebiw.com. Your data is kept apart from every other company's, inside the database too.
- Everyone sees only their part
- A site engineer sees their project and a subcontractor only their own contracts. The assigned role decides it, not anyone's good will.
- Everything stays on record
- Who approved, what changed and when. Documents are versioned and never deleted.
- Protected access
- Two-step verification, lockout after repeated attempts, and automatic backups of your information.
07Questions
Frequently asked questions
How much does BIW cost, and can we start with a pilot?
Pricing depends on the number of active projects and users. The usual path is a pilot on one project, extended to the rest of the operation once it works. Write to us and we'll put it together with you.
Can we bring in what we already have in spreadsheets?
Yes. During onboarding we load budgets, schedules, subcontractors and staff from your files, so the project starts in BIW with its history.
Does it handle both AIU contracts and full-VAT contracts?
Yes. Each contract is set up one way or the other, and progress bills, owner billing and reports all follow that same rule. Nobody has to recalculate AIU by hand.
Is our information mixed with other builders'?
No. Each company has its own address (yourcompany.usebiw.com) and its data is isolated from everyone else's in the database. If an inspector or a subcontractor works with several companies, they hold a separate account in each one.
What if there's no signal on site?
BIW runs in the browser and needs a connection to log progress and upload photos. It has no offline mode today. Most teams log the day from the site office, or whenever the work front has coverage.
What support do we get after go-live?
We help you set up roles, chapters and subcontractors, stay close to the pilot project's team, and keep a direct WhatsApp and email channel open for day-to-day questions.
08Contact
Let's talk about your projects
Tell us how many projects you run and how you control them today. We'll get back to you to show BIW on a case close to yours.