Contractor Billing & Project Costing
Estimation & Quantity Surveying • Billing Audit

Contractor Billing & Project Costing

Independent audit of running account (RA) bills, variation claims scrutiny, final billing settlements, and cost control.

Protect your financial interests during construction. We vet contractor RA bills, verify executed quantities, review extra item rates, apply statutory deductions, and issue certified payment recommendations.

NPC Rapid Response Desk

Request Contractor Billing & Project Costing

Submit your project details for technical evaluation.

Technical Scope

Comprehensive Service Breakdown

Every deliverable is handled by experienced engineers adhering to regulatory guidelines and established engineering codes.

Running Account (RA) Bill Scrutiny

Independent engineering and commercial verification of interim contractor payment claims before fund disbursement.

NPC Certified Deliverable

Contract Condition Enforcement

Applying retention money holdbacks, mobilization advance amortization, defect liability provisions, and statutory TDS/GST checks.

NPC Certified Deliverable

Extra Item & Variation Scrutiny

Rigorous engineering evaluation of contractor extra-claim requests, analyzing site justifications and formulating fair market rates.

NPC Certified Deliverable

Budget Variance & Cost Tracking

Comparing cumulative billed expenditure against initial master budget to give clients early warnings on potential overruns.

NPC Certified Deliverable

Liquidated Damages & Penalty Review

Auditing milestone delays against agreed baseline construction schedules to assess contractual penalties if applicable.

NPC Certified Deliverable

Final Bill Reconciliation & Settlement

Final measurement book audits, defect rectification clearance, snag-list resolution, and final closure certificate issuance.

NPC Certified Deliverable
Workflow

Structured Execution Methodology

Transparent, stage-wise delivery ensuring accuracy, speed, and regulatory compliance.

01

Contractor Bill Submission

Receipt of itemized invoice, supporting measurement sheets, and test certificates from the contractor.

02

Technical & Mathematical Audit

Verifying claimed quantities against approved MB records, checking applied rates, and auditing formula sums.

03

Statutory & Advance Deductions

Deducting mobilization advance recovery, 5% retention money, testing charges, and statutory tax liabilities.

04

Payment Certificate Release

Issuing the formal NPC Payment Recommendation Certificate authorized for direct disbursement by the client.

Actionable Outputs

What You Receive

Clear, authenticated engineering outputs packaged for immediate submission to municipal bodies, banks, or contractor tenders.

Certified Payment Recommendation Certificate for Each RA Bill
Detailed Deductions, Recoveries & Retention Schedule
Variation & Extra Items Rate Scrutiny Assessment Sheet
Final Bill Closure, No-Claim Dossier & Project Cost Reconciliation

Get Started with NPC

Prompt turnaround on structural & approval documentation

Send your site survey, plot dimensions or building drawings
Receive technical scrutiny and detailed scope within 24 hours
Transparent timeline, competitive consulting fee, and milestone updates

Have Questions About Contractor Billing & Project Costing?

Let our civil and structural consultants assess your site requirements and provide actionable guidance.