Construction and solar EPC ERP
Build smarter. Control every site.
One system of record for construction and solar EPC delivery — WBS and daily progress, procure-to-pay, stores, client billing and the general ledger, all connected.
For large contractors, EPC companies and multi-company groups
Purchase Orders
Procure-to-pay
- Purchase indentSite raises the needIndent
- RFQ and quotesProcurement compares vendorsRFQ
- Purchase orderPO/FY2627/0001Approval
- Goods receipt noteStores receives on siteGRN
- Bill and paymentAccounts posts to the ledgerLedger
Sound familiar?
The problems BuildNexa fixes.
Job costs known only after month-end close.
Live cost by project and cost code, every day. Receipts, subcontract bills and the equipment logbook book cost to the project as they post.
Site updates scattered across WhatsApp and calls.
Daily progress logged per site and activity. A daily progress report is drafted for every project each evening, ready for the site team to fill in.
Stock counted in paper registers at each site.
Multi-site stock, transfers and GRNs in one place, costed at weighted average.
RA bills assembled manually in Excel.
RA bills from contract value × % complete, drafted at month-end with retention and TDS defaults from the client master.
Subcontractor bills checked line by line.
Bills matched to work-order terms automatically: billed quantity can’t pass the certified quantity, and measurements can’t pass the work order by more than 10%.
Approvals waiting days for a signature.
Configurable approval workflows with full history. Each step is decided by a role, and approvers hear by email.
Walk through a job
Follow the work, step by step.
Pick a step to see who does it, what it creates and how everyone else finds out.
Step 1 of 7
Indent
The site’s need is raised against the project.
- Who
- Project manager, or the project’s procurement member
- Approval
- The roles named in your approval workflow
Purchase indent
PI/FY2627/0001
Moves through
- Draft
- Submitted
- Approved
Reaches people by
A day in the role
Built around who does the work.
I only find out a project is behind when the month closes.
The whole portfolio, live.
Works in
- Portfolio Overview
- Executive dashboard
- Cost to completion
- Permission matrix
- Audit log
Day to day
- Portfolio overview with progress and S-curve status
- Executive dashboard, cost to completion and aging
- Sets up companies, masters, users and approval workflows
Approves
- Purchasing, subcontract and receivables steps, where your workflow names them
- Service requisitions (org admin)
- Period close and reopen (org admin)
All roles: organisation roles Org admin, Portfolio lead, Accounts, Procurement, Stores, HR and Member, plus project roles Project manager, Engineering, Procurement, Site and Viewer.
Run the numbers
What could leakage be costing you?
Most growing contractors run on Excel, registers and WhatsApp — until margins quietly leak between the cracks.
- Estimated leakage a year
- ₹3 Cr
- You could recover
- ₹1.2 Cr
Illustrative estimate from your inputs — not a quote or guarantee. On thin construction margins, a few percent of leakage can erase a project's profit.
Get a tailored estimateModules
What's inside.
08 areas
Projects and DPR
- WBS and weightages, with WBS templates and Excel workbook import
- Engineering, materials and construction daily progress reports
- Plan vs actual, master schedule and Project 360
- Issues, delays and alerts; estimates, budgets and an equipment logbook
Procurement
- Indent, requisition, RFQ, purchase order, goods receipt, bill and payment
- Service requisitions, work orders, contractor JMRs and service bills
- Vendor advances, vendor ledger and debit notes
Inventory and stores
- Warehouses, receipts, goods issues and store returns
- Adjustments and transfers, costed at weighted average
Clients and billing
- Leads, tenders, proposals and contracts
- RA bills from cumulative progress, client advances, payments and ledger
Finance and accounting
- Chart of accounts, journals and monthly period close
- Inter-company loans, financial statements and aging
- Tally-compatible XML export
Assets, plant and production
- Asset register and depreciation, equipment and hire orders
- Weighbridge, plants and BOM, production runs and dispatches
HR and payroll
- Employees, attendance and payroll runs
Reports and governance
- Executive dashboard, financial statements, aging and cost to completion
- Agreements, statutory approvals with expiry alerts, cases and notices
Controls
- GST tax codes
- TDS for 194C, 194I, 194J and 194Q
- Approval workflows
- Document numbering by financial year
- Cancellations post reversal entries, never edits
- Nine integrity checks every night
- Closed periods reject postings
- Audit log
Works with
- Tally (XML)
- Excel workbook import
- CSV export on every table
- WhatsApp reminders
- Email approvals and alerts
- Invoice upload to fill in service bills
Getting started
Every stage hands over to the next.
- 1
Organisation setup
Companies, chart of accounts, tax codes, numbering and approval workflows.
- 2
Client & project
Client with GSTIN and retention defaults, then the project and its contract value.
- 3
WBS & weightages
Engineering, Procurement and Construction items whose weightages drive % complete.
- 4
Procure & build
POs, GRNs, work orders and JMRs post straight into the DPR.
- 5
Bill & collect
RA bills on cumulative % complete, client payments and the client ledger.
- 6
Close & audit
Period close, financial statements and a Tally export for your auditor.
Your data
Comes in easily. Goes out cleanly.
Bring in
Imports and uploads
- Excel DPR workbooks: WBS, engineering, materials and construction status, plan vs actual, Gantt, issues and resources. Re-running updates rows instead of duplicating them.
- WBS templates from the Setup Library, including a Solar EPC template that scales with plant size
- Contractor invoices as PDF or photo, read into service bills for you to check
Take out
Exports and documents
- Tally-compatible XML of posted vouchers for any date range
- CSV export on every table
- Reports in Excel and PDF, with saved filters and schedules: trial balance, P&L, balance sheet, aging, cost to completion and more
Share and notify
How people hear
- Email when an approval is waiting or decided
- Bills drafted from receipts and measurements, sent to accounts
- Morning alerts for overdue items, escalated from the project manager to admins
- WhatsApp and email reminders, including TDS on the 5th of each month
Where it runs
Built for how you work.
Web app
Works on desktop, tablet and phone screens.
Multi-company
Companies and branches as masters, with inter-company loans in the ledger.
Made for India
GST tax codes, TDS sections, Indian financial-year numbering and Tally export.
Built for
- General contractors
- Real estate developers
- Infrastructure
- Solar EPC
- Engineering firms
- Subcontractors
- Industrial projects
- Multi-company groups
Is it right for you?
BuildNexa fits when…
- You run several projects, sites or group companies at once
- Progress is tracked against a WBS with weightages, and client billing follows % complete
- You need procure-to-pay with stores, goods receipts and three-way matching
- Subcontractors are paid on measured, certified quantities
- Your accountants want a double-entry ledger, GST, TDS and Tally export
Look at Sitera instead if
- You’re a growing contractor that wants leads, estimates and projects in one simple flow
- Clients and vendors should log in to approve and quote
- Your site team wants an Android app
FAQ
Questions, answered.
Yes. Workbook Import reads your .xlsx — WBS items, scope quantities and dates — and reports what it created sheet by sheet. Running it again updates rows instead of duplicating them. WBS templates are also available from the Setup Library.
Yes. Ledger & Tally Export exports the period’s vouchers as Tally-compatible XML for your statutory auditor.
At project level: contract value × cumulative % complete, less what has already been billed. Retention and TDS defaults come from the client master, so nobody re-types them.
Cancel it. The cancel guard first checks that nothing downstream still depends on it, then posts a reversal entry (never an edit), reverses any stock movement and recomputes the linked DPR quantities.
Each user has one organisation role — Org admin, Portfolio lead, Accounts, Procurement, Stores, HR or Member — plus project roles such as Project manager, Engineering, Procurement, Site or Viewer.
No. BuildNexa started with solar EPC delivery, and the same WBS, procurement, inventory and finance modules run building, infrastructure and other construction projects.
BuildNexa is a web app that works on desktop, tablet and phone screens. There is no separate native app.
See BuildNexa in action.
We'll walk you through BuildNexa with your own workflow in mind, then set it up for your team.