The Contracts Every Construction Company Needs (and How to Manage Them) (2026)

Which contracts does a construction company actually need? A construction company lives or dies by its paperwork. A single project can involve the owner, a main contractor, several subcontractors, material suppliers, equipment lessors, consultants and labour contractors, and every one of those relationships needs a contract that says who does what, who pays what, and what happens when something goes wrong. If you run or advise a construction business, these are the agreements you cannot do without. The core set: | Contract | What it does |

|---|---| | Main construction (works) contract | The master agreement between the owner and the contractor. Usually lump sum, item rate, cost plus or EPC (engineering, procurement and construction). Large projects often adapt FIDIC forms. | | Subcontractor agreement | Passes defined work down to a specialist, ideally back to back with the main contract so risk flows through. | | Supply and procurement agreement | For cement, steel, fittings and other materials, with price, delivery and quality terms. | | Labour or manpower contract | For contract labour supplied to the site, which carries its own statutory duties in India. | | Consultancy agreement | For the architect, structural engineer, project manager or quantity surveyor. | | Equipment hire or lease | For cranes, formwork and plant, with liability for damage and downtime. | | Joint venture or consortium agreement | When two firms bid or build together. | | Development or owner agreement | For developer led projects, including revenue or area sharing. | | Bank guarantees and insurance | Performance guarantees, advance payment guarantees, contractor all risk (CAR) cover and workmen cover. | This is general guidance, not legal advice. Construction contracts carry real financial and safety risk, so have a qualified professional review yours before you rely on it. ## The clauses that decide whether a project pays Most construction disputes come down to the same handful of clauses. Get these right and you avoid the arguments that stall payment and sour relationships. - Scope, drawings and specifications. Attach the bill of quantities and drawings and say which document wins if they conflict. Loose scope is the root of most variation fights.

• Price and payment schedule. Tie payment to measured milestones or stages, state the billing cycle, and define what a running account bill must contain.
• Variations and change orders. No site should change work on a verbal instruction. Require written change orders with agreed rates before the work proceeds.
• Time, programme and delay damages. Fix the completion date, the extension of time process, and liquidated damages for delay. Separate contractor delay from owner caused and neutral delay.
• Retention and defects liability. State the retention percentage, the defects liability period, and when retention is released.
• Force majeure. Define the events, the notice period and the relief. Many Indian contracts were rewritten after the pandemic to make this precise.
• Dispute resolution. Most Indian construction contracts arbitrate under the Arbitration and Conciliation Act, 1996. State the seat, the number of arbitrators and the governing law.
• Indemnity and insurance. Allocate responsibility for third party injury and property damage and require proof of live insurance. ## India compliance a construction contract has to respect Several statutes sit behind any Indian construction contract. Confirm current rates and notifications before you price or sign, because they change. - Payment to small suppliers. Under the MSMED Act, 2006, payment to a registered micro or small supplier cannot exceed 45 days where the contract fixes a period, and late payment carries statutory interest. A MSMED (Amendment) Act, 2026 has received assent but its commencement depends on a government notification, so check the current position. <!-- [VERIFY: MSMED Amendment Act 2026 commencement date not yet notified as of Oct 2026] -->
• Construction workers. The Building and Other Construction Workers Act, 1996 covers sites with ten or more workers and carries a welfare cess (commonly set in the band of one to two percent of construction cost, confirmed per state). India's four labour codes came into force in November 2025 and are being rolled out through 2026 with state rules still being notified, so track which framework applies in your state. Last verified October 2026.
• Real estate projects. For a RERA registered project under the Real Estate (Regulation and Development) Act, 2016, the developer carries a five year structural defect liability under Section 14(3), which contractors often mirror in the works contract.
• GST on works contracts. Construction and works contract services fall under SAC 9954 and generally attract 18 percent GST, though rates vary by project type (affordable housing, government works and others differ). Confirm the current CBIC notification before pricing. <!-- [VERIFY: current works contract GST rates vary; confirm CBIC notification at time of contract] -->
• Contract labour. The Contract Labour (Regulation and Abolition) Act, 1970 requires the principal employer to register and the contractor to hold a licence where 20 or more contract workers are engaged. ## Common mistakes to avoid - Starting work on a letter of intent and never signing the full contract, so the real terms are never agreed.
• Subcontracts that are not back to back with the main contract, which leaves the main contractor carrying risk it has passed on.
• No written change order process, so every variation becomes a claim.
• Vague delay and extension of time clauses, which make liquidated damages unenforceable in practice.
• Ignoring the 45 day MSME payment rule and the statutory interest it triggers. ## How to manage construction contracts without losing track The contracts are only half the job. The other half is managing dozens of live agreements across several projects at once: knowing which subcontract is unsigned, which guarantee expires next month, which bill is overdue under the 45 day rule, and which clause in the owner contract you forgot to pass down. This is the idea behind an AI contract workspace. Instead of a shared drive full of near identical Word files, your drafting, review, version history, key dates and obligations live in one place, tuned to how your company builds and contracts. You can draft a subcontract from your own standard form, see per clause risk before you sign, edit terms in plain language, and keep retention releases, guarantee expiries and renewal dates in view. A workspace such as Adira is built around that single workspace idea. The checklist above is enough to put the right contracts in place; a workspace simply makes drafting, review and tracking one connected job across a whole project portfolio.