Change orders and contracts

How to read a construction contract before signing

Read a construction contract in a set order: what you are building, how and when you get paid, how changes and delays are handled, what risk you are taking on, and how the deal ends. Mark every deadline and every clause that shifts risk to you.

A contractor and plan reviewer discuss drawings and permit paperwork across an office desk.
Keep plans, permit requirements and approvals together when preparing construction work. AI-generated illustration.

To read a construction contract before signing, go through it in this order: the documents that make up the contract, the scope, the price and payment terms, changes, schedule and delay, risk transfer (indemnity, insurance, warranties), disputes, and termination. Write down every deadline and every clause that moves risk onto you. Then decide what you need changed, what you can price in, and what makes the job a pass. Do not skip the exhibits and the general conditions, because that is where the surprises live.

Most contractors read the price and the start date and sign. That is how a $60,000 profit becomes a $20,000 loss on a job that went fine in the field. The clauses below do not matter until something goes wrong. On a construction job, something always goes wrong.

Before you start: get the whole contract

A subcontract that says "Subcontractor is bound to the prime contract" just pulled in a document you have not seen. Ask for every document listed in the contract documents section: the agreement, general and supplemental conditions, drawings and specs by date, addenda, exhibits, and the prime contract if it flows down. If they will not give you the prime contract, at least get the sections that bind you.

A step-by-step review order

1. Scope and order of precedence

Compare the scope description to your bid line by line. Check that your exclusions and clarifications made it into the contract, not just your proposal. Find the order of precedence clause: when the drawings and specs conflict, which wins? Some contracts say the more expensive requirement always governs, which is a hidden cost.

2. Price, payment, and retainage

Look at when pay applications are due, how many days the owner or GC has to pay, the retainage rate, and what triggers release. On subcontracts, find out whether payment is conditioned on the GC being paid. A pay-if-paid clause can shift the owner's credit risk to you; a pay-when-paid clause usually just sets timing. State law treats these differently, so check your state's prompt payment rules. On federal jobs, the FAR prompt payment clause for construction requires the prime to pay subs for satisfactory work within 7 days of being paid, and that requirement flows down every tier.

3. Changes

Who can order a change, what form it must take, how fast you must give notice of a claimed change, and how changes are priced. Watch for markup caps and for language saying you waive anything not submitted within a short window.

4. Schedule, delays, and liquidated damages

Find the completion date, the delay notice deadline, and the daily liquidated damages rate. Look for a no damages for delay clause, which may give you time but no money when the owner causes delay.

5. Indemnity and insurance

Read the hold harmless clause closely. A broad form can require you to cover losses caused by others' negligence; many states limit that by statute, but not all, and not on every type of job. Then compare the insurance exhibit to your actual policies: limits, additional insured endorsements, waiver of subrogation, and primary and noncontributory wording. Send the exhibit to your agent before you sign.

6. Warranty and closeout

How long is the warranty, when does it start, and what closeout documents are needed for final payment? A warranty that starts at owner occupancy instead of your substantial completion can run years longer for an early trade.

7. Disputes and termination

Check the venue, whether disputes go to court or arbitration, and whether you must keep working during a dispute. Then read both termination clauses: termination for default (what counts as default, how long you have to cure) and termination for convenience (what you get paid if the owner walks away).

8. Build a one-page contract summary

Finish the review by writing a single page the field team will actually read: contract value, retainage rate, pay app due date, who approves changes, every notice deadline in days, the liquidated damages rate, insurance requirements, warranty start, and closeout documents. Attach it to the job file. The person who read the contract is rarely the person who runs the job, and the clauses only protect you if the PM and super know they exist.

Worked example: a $640,000 framing subcontract

Here is an example review. A framing sub gets a $640,000 subcontract for a 40-unit apartment building. The bid assumed 10 percent retainage, net 30 payment, and no liquidated damages. The review turns up five issues.

Example review findings and responses
Clause foundRiskResponse
Pay-if-paid on all progress paymentsNot paid if the owner does not pay the GCAsk for pay-when-paid with an outside date
Liquidated damages of $1,500 per day, flowed downOne slow week costs $10,500Ask for a cap and pass-through only when sub-caused
7-day notice for any claimEasy to missAsk for 21 days; calendar it either way
Broad form indemnityCovering the GC's own negligenceLimit to sub's negligence; check with insurer
Warranty starts at final owner acceptanceCould add a year or moreTie start to completion of framing scope

The GC agrees to three of the five. The sub prices the remaining liquidated damages exposure into its contingency and signs with a clear view of the risk. That is a good outcome. The goal is not a perfect contract. It is no surprises.

Mistakes to avoid

  • Signing the contract before reading the exhibits. Insurance, scope, and schedule exhibits often carry more risk than the main agreement.
  • Assuming your proposal is part of the contract. If it is not listed in the contract documents, your exclusions may not count.
  • Not calendaring notice deadlines. A 7-day claim window is meaningless if nobody knows it exists.
  • Redlining everything. Pick the clauses that matter. A 60-comment markup tells the GC you are hard to work with. Five targeted asks get answered.
  • Handing the contract to the field without a summary. The PM and super need a one-page sheet with notice deadlines, approvers, and key dates.

Tools and next steps

Subcontractors should also read how to read a general contractor subcontract and construction contract clauses that hurt subcontractors. When the contract is signed, load the key dates and the schedule of values into your system at handoff, as covered in how to hand off a job from estimating to operations. Smart Business Automator stores the contract summary, key dates, and insurance requirements on the job record so the field team sees them, and its document data extraction can pull dates and amounts from the contract file. See estimate to project handoff automation.

Frequently asked questions

How long should a contract review take?

For a typical subcontract, plan on one to three hours for a careful read and summary by someone who knows your operations, plus attorney time for anything unusual. Large prime contracts take longer.

Can I ask a general contractor to change their subcontract?

Yes. Many GCs expect a short list of requested changes. Focus on payment, liquidated damages, indemnity, and notice periods. You will get further with a few reasonable asks than with a full rewrite.

What is the most dangerous clause in a construction contract?

It depends on the job, but pay-if-paid, broad indemnity, uncapped liquidated damages, and short claim notice windows cause the most losses. Each can turn a normal problem into an unrecoverable cost.

Do standard AIA or ConsensusDocs forms need review?

Yes. Standard forms are a good starting point, but owners and GCs often modify them with supplemental conditions or riders. Read the changes, not just the base form.

Sources

  1. Acquisition.gov: FAR 52.232-27 Prompt Payment for Construction Contracts
Written and edited by

Maurice Francois writes and edits construction operations guides for Smart Business Automator. More from Maurice on the Scaling Legends podcast.

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