Mayuga Construction Job Costing Platform
From three Excel workbooks per project to one live job-costing system for a Cavite design-build firm.
Impact
What changed.
Month-end speed
Variance analysis dropped from four working days to under three hours. Finance now closes the books on the second working day of the following month.
Cost recovery
Within the first two quarters, the team identified ₱4.8M in previously-untracked subcontractor and material variances that would otherwise have eaten margin silently.
Site-level autonomy
Project managers stopped calling head office for cost numbers. They now run weekly site reviews with live data on their phones and resolve overruns before they compound.
The challenge
Before
Mayuga Construction was running 14 active design-build projects across Cavite and Laguna, with each project tracked across three separate Excel workbooks — one for procurement, one for labor, one for billing. Reconciling actual cost against project estimate took a 2-person finance team four full days at month-end, and by the time variances surfaced, the cost overruns were already baked in. Project managers had no way to see live cost-to-date on their sites without calling head office.
- Three separate Excel workbooks tracking procurement, labor, and billing per project
- Month-end variance analysis taking finance team four working days
- No live cost-to-date visibility for site project managers
- Subcontractor billings reconciled manually against signed work orders
- Material requests sent over Viber with no audit trail back to purchase order
- Labor logs captured on paper time cards and entered weekly with delays
- Change orders tracked in a shared folder with no link to revised budget
- No role-based access — every workbook was edited by every team member
The solution
What we built
We built a job costing platform with 19 integrated modules tailored to Filipino design-build economics. Project budgets are captured at the BOQ line level, then linked downstream to every purchase order, delivery receipt, subcontract, and time card raised against that project. Site managers log labor and material consumption from their phones; finance sees cost-to-date refresh inside 60 seconds. The procurement module handles purchase requests, supplier quote comparison, PO issuance, and partial deliveries with automatic three-way matching against invoice and receiving report. Subcontract management tracks signed scope, progress billings, retention, and final closeout. A change-order workflow keeps the originally-approved budget intact while overlaying approved and pending revisions. Reporting includes a project P&L dashboard, AR aging by project, supplier cycle-time analysis, and a cost-variance heatmap that flags any line item drifting beyond a configurable threshold. We also built a small mobile-first portal so site engineers can request materials and approve deliveries without opening a laptop.
Core workflow connections
How the system flows.
- BOQ ImportProject BudgetCost Code MappingLive P&L
- Material RequestQuote ComparisonPOReceivingThree-way Match
- Subcontract AwardProgress BillingRetention HeldFinal Closeout
- Time Card EntryDaily Labor CostProject CostingCrew Productivity Report
- Change OrderApproval RoutingRevised Budget OverlayAudit Trail
- AR InvoiceCollection ScheduleProject Cash Position
- Supplier Cycle Time Analysis with on-time delivery scoring
- Cost-variance heatmap flagging any line drifting beyond threshold
- Mobile material request and delivery approval for site engineers
- Role-based access scoped per project, per role, per cost-code group
Process
How we built it.
BOQ Import → Project Budget → Cost Code Mapping → Live P&L
Material Request → Quote Comparison → PO → Receiving → Three-way Match
Subcontract Award → Progress Billing → Retention Held → Final Closeout
Time Card Entry → Daily Labor Cost → Project Costing → Crew Productivity Report
Change Order → Approval Routing → Revised Budget Overlay → Audit Trail
AR Invoice → Collection Schedule → Project Cash Position
Supplier Cycle Time Analysis with on-time delivery scoring
Cost-variance heatmap flagging any line drifting beyond threshold
Mobile material request and delivery approval for site engineers
Role-based access scoped per project, per role, per cost-code group
Start a project
Tired of running projects across three workbooks?
We design and build job costing systems that match how Filipino contractors actually procure, build, and bill — not a recycled US ERP module.
No retainer lock-in · Month-to-month · Full transparency
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