How Amit Patel cut material wastage from 14% to 8.4% — saving ₹4.7 lakh every month

Ahmedabad-based civil contractor with 12 active mazdoor crews across residential and small-commercial sites. Wastage on cement and steel was eating his margin. Site Setu changed the game.

📅 5 min read 📍 Ahmedabad, Gujarat 🏗️ Civil contractor
Amit Patel
Patel Constructions · Ahmedabad
[hero photo placeholder]
14%→8.4%
wastage cut (40% reduction)
₹4.7L
monthly savings
12
active mazdoor crews
2 days
RA bill processing (was 11)

The Challenge

Amit Patel runs Patel Constructions, a 9-year-old civil contracting firm based in Ahmedabad. He sub-contracts to four mid-size builders — handling structural concrete, brickwork and plaster across roughly 12 mazdoor crews spread between Ahmedabad, Gandhinagar and the SG Highway corridor. By 2024, his business was steady — but his margin wasn't growing despite top-line growth.

The reason became obvious once he sat down with his accountant in early 2024: material wastage. Cement reconciliation showed 14% loss against the BOQ-allowed norm of 2–3%. Steel was 11–12%. On a project consuming ₹38 lakh of cement and steel per month, that gap was ₹4–5 lakh leaking — every single month.

The other pain was billing. Amit's RA bills to the principal contractor took 11 days on average — engineer measured, supervisor verified, accounts cross-checked, the principal's QS reviewed, all over WhatsApp and printed sheets. By the time the bill was approved, the next billing cycle had already started. Cash-flow was permanently 30 days behind work-on-ground.

"

I knew wastage was happening. I just couldn't prove which crew, which week, which item. By the time the month-end report was ready, the leak had already happened.

— Amit Patel, Patel Constructions, Ahmedabad

The Solution

Amit moved to Site Setu in March 2024 on the Professional plan. The two modules he leaned on hardest were Material Tracking and BOQ-driven RA Bills. The Site Setu onboarding team set up wastage thresholds per BOQ item — cement 3%, steel 2%, sand 5%, aggregate 5%. Anything beyond the threshold triggered a real-time WhatsApp alert to Amit and the relevant supervisor.

The first month was an eye-opener. Three of his 12 crews showed wastage 4–6% above the threshold. One crew was over-ordering cement on Friday and "losing" 8–10 bags by Monday. Another was using inferior aggregate ratio in mixing. With names, dates and items now visible on the dashboard, Amit could have direct conversations with each mukadam — within a week, two of three offenders were within norm.

[Site photo: Patel Constructions material yard · Ahmedabad]

On RA bills, the BOQ was already in Site Setu so the engineer's monthly task became: open the bill, mark work-done % per item, attach the linked DPRs, and send for principal contractor approval. The system calculated retention, GST, advance recovery — none of it manual. The principal's QS started clearing bills in 2 days instead of 11.

Amit also turned on the labour module. With supervisor-verified attendance, mukadam-level wage padding stopped overnight. Weekly wages went from cash-handouts to UPI auto-payouts every Saturday morning at 10 am — workers stopped chasing for advances mid-week.

"

Two days for an RA bill instead of eleven. That changed our cash-flow more than any bank facility ever did.

— Amit Patel

The Results

  • Material wastage cut from 14% to 8.4% — a 40% reduction across cement, steel, sand and aggregate.
  • ₹4.7 lakh saved per month on cement and steel alone. Annualised: over ₹56 lakh — straight to margin.
  • RA bill processing time: 11 days → 2 days — cash-flow accelerated by 9 days each cycle.
  • 3 underperforming crews identified in the first month — two corrected, one replaced.
  • Mazdoor wage padding eliminated — 100% UPI payouts on Saturday mornings.
  • Audit trail for every cement bag — when the principal contractor's QS asks, Amit has photo + DC + consumption log linked.
[Site photo: Slab pour at Gandhinagar site · 12-crew operation]
"

For what we pay on Site Setu's Professional plan I'm saving ₹4.7 lakh a month. The math is embarrassing — I should have done this two years ago.

— Amit Patel

What's next

With the wastage and billing pain solved, Amit is now using Site Setu's analytics to bid more aggressively on tenders. With trustworthy unit costs in hand, he can quote tighter rates without burning his margin. Patel Constructions is targeting 15 active crews and direct-builder relationships in the next financial year.

📖 Related

→ Site Setu Pricing → For Contractors → Material wastage guide → RA Bill Format

Cut Wastage Like Amit

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