15 Critical Questions to Ask a Builder Before Hiring in India: 2026 Due Diligence Checklist

Building a residential house or custom villa is often the largest single financial investment of a lifetime. Yet, thousands of homeowners across India hire builders and contractors based solely on verbal promises, glossy brochures, or a vague square-foot rate.

Within months, many find themselves dealing with substandard cement mixes, delayed slabs, unauthorized cost escalations, and uncontactable contractors.

Before you sign a contract or hand over a single rupee of advance payment, ask your prospective builder these 15 critical due-diligence questions.

Part 1: Structural Integrity & Material Quality Diligence

Question 1: Which primary brands and grades of TMT steel and cement will you use?

*What to look for:* Never accept "good quality steel" or "standard grade cement" in your contract. Insist on named primary producers: Tata Tiscon, Jindal Panther, or SAIL Fe550D for rebar, and UltraTech, ACC, or Ambuja OPC 53/PPC for concrete. Secondary re-rolled steel bars have inconsistent yield strength and rust prematurely in humid UP ground soil.

Question 2: Will you provide 7-day and 28-day concrete cube compressive strength test reports?

*What to look for:* A professional engineering contractor routinely casts standard concrete test cubes during every major slab, column, and foundation pour. These cubes are tested at an accredited civil engineering laboratory to verify M20 or M25 compressive strength. If a builder hesitates to commit to lab test reports, walk away.

Question 3: How do you protect the foundation against Lucknow's high water table and termites?

*What to look for:* A reputable builder must specify a 3-stage chemical anti-termite treatment (using Chlorpyrifos or Imidacloprid) applied to the trench bottom, masonry sides, and plinth backfill. Furthermore, in areas near the Gomti basin or Shaheed Path, plinth beams must feature a monolithic Damp Proof Course (DPC) and crystalline waterproofing injection.

Question 4: Do you conduct a Standard Penetration Test (SPT) and soil bearing capacity test before designing footings?

*What to look for:* Foundation design cannot be guessed. Lucknow's sandy-clay alluvial loam requires calculated footing depths and raft dimensions based on actual Geotechnical soil data.

Part 2: Legal Compliance, RERA & Builder-Buyer Contract Clauses

Question 5: Can you provide a detailed, itemized Bill of Quantities (BOQ) with brand specifications?

*What to look for:* Refuse lump-sum square-foot contracts without an attached material specification sheet. The BOQ must explicitly detail brick quality (Class-I red clay vs AAC blocks), plumbing pipe brands (Astral/Ashirvad CPVC), electrical wiring (Polycab/Havells FRLS fire-retardant), and tile allowances (Kajaria/Somany vitrified).

Question 6: Is the contract price locked, or can you charge escalation if cement and steel prices rise?

*What to look for:* Unethical contractors lure homeowners with an artificially low quote (e.g. ₹1,400/sq.ft) and later issue massive escalation bills halfway through brickwork. Demand a Firm Fixed-Price Clause where the builder absorbs raw material price fluctuations.

Question 7: What is the milestone-based payment schedule?

*What to look for:* Safe payment structures link disbursements directly to physically verified site milestones: - 10% Foundation Completion - 15% Ground Floor Slab Casting - 15% First Floor Slab Casting - 20% Brickwork & Electrical Conduit Chasing - 20% Plastering & Flooring - 10% Sanitary, Painting & Fixtures - 10% Final Snag-List Handover *Red Flag:* Any contractor asking for 30% to 50% upfront before foundation excavation.

Question 8: What penalty clause applies if the project is delayed beyond the agreed completion date?

*What to look for:* Contracts must include a defined delay liquidated damages clause (typically ₹500 to ₹1,000 per day of unexcused delay) to ensure project timelines remain strictly on schedule.

Part 3: Supervision, Transparency & Project Management

Question 9: Will a qualified civil engineer supervise my site daily, or just a labor supervisor (thekedar)?

*What to look for:* Ask for the qualification of the on-site supervisor. A diploma or B.Tech civil engineer understands water-cement ratios, rebar cover blocks, and curing intervals; an untrained thekedar often skips critical curing days to finish early.

Question 10: How will I track daily progress if I am at work or living outside Lucknow?

*What to look for:* Modern builders provide live CCTV access, daily WhatsApp photo logs, and weekly drone/video updates. This is essential for NRI or working professionals building homes in Lucknow.

Question 11: Who bears legal liability for laborer accidents or injuries on site?

*What to look for:* The builder must hold active Workmen's Compensation Insurance and provide an indemnity clause protecting you as the landowner from third-party liabilities during construction.

Part 4: Warranty, Handover & Snagging Audits

Question 12: Do you provide a written, legally binding structural warranty?

*What to look for:* Standard industry practice under RERA mandates a 5-year structural defect liability period. Swastik Home provides a written 5-year structural bond covering concrete foundation integrity, slab seepage, and structural cracks.

Question 13: Can I visit 2 active construction sites and speak directly with past clients?

*What to look for:* Don't rely solely on finished project photos. Request to see an ongoing site during RCC slab casting or brickwork to inspect material cleanliness, shuttering quality, and worker safety protocols.

Question 14: What happens if I want to make changes or upgrades during construction?

*What to look for:* Transparent variation orders. The contract should clearly state how changes (e.g. adding an extra electrical point or upgrading tile finishes) are priced and approved in writing prior to execution.

Question 15: What documentation will you hand over upon project completion?

*What to look for:* Complete as-built architectural drawings, plumbing pipeline schematics, electrical circuit conduit layouts, appliance/fitting warranty cards, and municipal completion certificates.

Summary Due Diligence Scorecard

Protect your investment by partnering with Lucknow's gold-standard turnkey construction team. Schedule an engineering consultation at our Sushant Golf City office by calling +91 91514 68657 or request a free quote through our online enquiry portal.