Where contractors hide your money
These are the most common "extras" that appear after you sign a per-sq.ft contract.
* Based on Buildogram's analysis of 100+ contractor quotes in Chennai & Tamil Nadu
8 critical areas we audit in your quote
Steel Quantity & Grade
Verify the exact tonnage, dia and grade of steel matches your structural drawing. Most contractors under-specify by 15–25%.
Cement Bags & Grade
Confirm the correct OPC/PPC grade and bag count per cubic metre of concrete. Grade substitution is the oldest trick.
Excavation & Foundation
Check if foundation depth, footing size, and PCC thickness match the soil report. Underpriced excavation blows up later.
Plumbing Spec
CPVC vs PVC vs GI — brands, wall thickness, and fitting counts that dramatically affect durability and cost.
Electrical & Wiring
Wire gauge, number of points, switch brand, DB box specification — cheap contractors cut all of these silently.
Plastering & Painting
M-sand vs river sand, plaster thickness, number of coats, and primer layers — each one affects finish quality.
Rate Inflation Check
We cross-check every line item rate against current market rates for Chennai. Overpricing of 10–30% is common.
Missing Scope Items
Compound wall, septic tank, rainwater harvesting, grills — contractors leave these out then demand extras mid-project.
4-step BOQ Audit process
Share Your Quote
Submit the contractor BOQ or quote (even a verbal estimate). Share drawings if available.
Engineer Review
Our structural engineers analyse every line item against Chennai market rates and standard specs.
Audit Report
You receive a detailed report: what's fair, what's inflated, what's missing, and what to negotiate.
Negotiation Support
Optional: We help you negotiate with the contractor or prepare a proper counter-BOQ.
Request Your Free BOQ Audit
Share your contractor quote (even a verbal one). Our engineers will review it and identify every discrepancy before you sign.
Or call us directly: +91 90000 00000