What Every Contractor Should Know Before Signing a Construction Contract
- Aletheia
- Aug 12
- 13 min read
A construction contract is much more than an agreement to complete a project. It defines your responsibilities, allocates risk, establishes payment procedures, and determines how disagreements will be handled if something goes wrong. A single clause that seems insignificant during negotiations can have a major financial impact months later, affecting everything from change orders and delay claims to warranties and liability. Before putting your signature on any contract, you should understand not only what work you're expected to perform, but also the obligations, deadlines, notice requirements, and documentation standards that follow throughout the project. Taking the time to review these details before construction begins is one of the most effective ways to protect your business, preserve profitability, and reduce the likelihood of costly disputes. Construction law guidance also emphasizes carefully reviewing notice clauses, complying with them exactly, and keeping proof that contractual notices were delivered.
Why the Contract You Sign Matters More Than the Price You Win
Before You Sign, Make Sure the Scope of Work Leaves No Room for Assumptions
The Contract Clauses That Transfer More Risk Than You Realize
The Contract Clauses That Transfer More Risk Than You Realize
Why Every Contractor Should Understand the Change Order Process Before Work Begins
Why the Contract You Sign Matters More Than the Price You Win
A Profitable Project Can Become an Unprofitable Contract
Winning a competitive bid is only the beginning. Your profit is ultimately determined by the obligations hidden inside the agreement you sign. Two contractors can perform the same work for the same price and finish on the same day, yet one earns a healthy margin while the other ends up involved in costly disputes because of clauses related to change orders, delays, notice requirements, or liability. Before focusing on project execution, make sure you fully understand the commercial risks you've agreed to accept.
Every Clause Transfers Risk
Construction contracts are designed to allocate responsibility between the parties. Payment terms, scheduling obligations, insurance requirements, warranties, dispute resolution procedures, and notice provisions all determine who bears the financial consequences when unexpected events occur. Reading every clause carefully before signing is one of the simplest ways to reduce avoidable disputes and protect your business throughout the project lifecycle.
Before You Sign, Make Sure the Scope of Work Leaves No Room for Assumptions
A Clear Scope Prevents Expensive Misunderstandings
The scope of work is one of the first sections many contractors review, yet it is often one of the least scrutinized. Broad language, incomplete specifications, conflicting drawings, or vague responsibilities can create disagreements long after construction begins. Before signing, confirm exactly what work is included, what is excluded, and which documents take precedence if inconsistencies arise. Clarifying these details early is far easier than negotiating them after work is underway.
Every Supporting Document Matters
A construction contract is rarely limited to the agreement itself. Specifications, drawings, schedules, addenda, site instructions, and technical standards may all become part of the contractual obligations. Reviewing these documents together helps identify conflicts before they develop into claims. Effective claims management depends heavily on understanding how project documentation supports contractual responsibilities throughout the project lifecycle.
Payment Terms Can Protect or Destroy Your Profit Margin
Understanding Progress Payments
The payment schedule in a construction contract deserves just as much attention as the contract price itself. Winning a project at the right price means very little if your payment terms create unnecessary cash flow problems throughout construction. Progress payments are designed to compensate contractors as work is completed rather than waiting until the entire project is finished, allowing you to cover labour, materials, equipment, subcontractors, and other operating costs while work continues. Before signing, review how payment applications are submitted, what supporting documentation is required, who certifies the work, and how long the owner has to release payment after approval. A clear payment process reduces misunderstandings and gives everyone a common expectation from the beginning of the project.
Holdbacks, Retainage, and Payment Deadlines
Many contractors pay close attention to the contract value but overlook how much of each payment may actually be withheld. Depending on the jurisdiction and the terms of the agreement, a percentage of every progress payment may be retained until certain contractual conditions have been satisfied. In many Canadian provinces, legislation requires a 10% holdback on progress payments until the applicable release period has passed. Understanding how these holdbacks work allows you to forecast cash flow more accurately and avoid surprises near the end of the project. You should also review payment deadlines carefully, including how long the owner has to certify payment, when invoices must be submitted, and whether interest applies to late payments. These details often have a greater impact on profitability than contractors initially expect.
What Happens When Payments Are Delayed?
Payment delays affect much more than your bank account. They can disrupt payroll, postpone supplier payments, strain relationships with subcontractors, and limit your ability to keep work moving at the planned pace. A single delayed payment can create a chain reaction across the entire project, especially when multiple trades depend on one another. Before signing the contract, understand exactly what remedies are available if payment is not made on time. Some agreements establish formal notice procedures, while others define when work may be suspended or when interest begins to accrue on overdue amounts. Knowing these provisions before construction begins gives you a clearer understanding of your rights and helps you respond professionally if payment issues arise instead of making decisions under financial pressure.
The Contract Clauses That Transfer More Risk Than You Realize
Indemnification Clauses
Indemnification clauses are among the most significant risk allocation provisions in any construction contract, yet they are also some of the most frequently overlooked. These clauses determine when one party is responsible for covering another party's losses, legal costs, or damages arising from a claim. In simple terms, you may be agreeing to pay for losses that extend beyond the work you physically perform. Before signing, carefully review exactly what events trigger the indemnity, whether it applies only to your own negligence or also to the actions of others, and whether there are any limits on your responsibility. A broadly worded indemnification clause can expose your business to financial obligations that were never reflected in your bid price. Understanding the scope of this provision allows you to assess the true level of risk you're accepting instead of discovering it after a dispute arises. Indemnification clauses are specifically intended to require one party to compensate another for certain losses defined in the agreement. [1]
Limitation of Liability
While indemnification clauses define what you may have to pay for, limitation of liability clauses establish where your financial exposure ends. These provisions may cap damages at a fixed amount, limit recovery to direct losses, or exclude certain categories of damages altogether. Contractors sometimes focus on the contract value without considering whether the potential liability could exceed the project's profit—or even the value of the contract itself. Review whether liability limits apply equally to all parties, whether exceptions exist for gross negligence or wilful misconduct, and how the clause interacts with your insurance coverage. A balanced limitation of liability provision can provide certainty for everyone involved, but an unbalanced one may leave you carrying risks that are difficult to predict and even harder to insure.
Insurance Requirements
Insurance clauses deserve far more attention than simply confirming that your company has the required coverage. Every construction contract should clearly specify which policies are required, the minimum coverage limits, when certificates of insurance must be provided, and whether additional insured endorsements are necessary. Some agreements also require contractors to maintain specific policies long after the project has been completed, meaning your obligations may continue well beyond the final payment. Before signing, compare the contract requirements with your existing insurance policies to identify any gaps. If additional coverage is needed, understand how it will affect your costs and whether those expenses were considered when preparing your bid. A contract that requires insurance you don't currently carry can significantly reduce your profit margin if the additional premiums were never anticipated.
Insurance should also work alongside the contract's risk allocation provisions rather than contradict them. For example, if the agreement transfers substantial liability to your company but your insurance policy excludes those risks, you could find yourself personally responsible for costs you assumed were covered. Taking the time to review these provisions with your insurance broker before signing can prevent unpleasant surprises and help ensure that your contractual obligations and insurance protection align with one another.
Warranties and Defect Liability Periods
Every contractor expects to stand behind the quality of their work, but warranty clauses often go beyond correcting workmanship deficiencies. Before signing a construction contract, determine exactly what is covered by the warranty, when the warranty period begins, how long it lasts, and what circumstances may extend your obligations. Some contracts distinguish between general workmanship warranties, manufacturer warranties, and defect liability periods, each carrying different responsibilities. Others may require you to respond within strict timelines after receiving notice of a defect, even if the issue is ultimately found to be outside your scope of work.
It's equally important to understand the difference between a warranty obligation and ongoing maintenance. Contractors occasionally assume that correcting minor deficiencies during the warranty period is simply part of the job, only to discover they're being asked to perform work that falls outside the original agreement. Reviewing these provisions before signing allows you to establish clear expectations with the owner and helps prevent disagreements once the project has been completed. A well-defined warranty clause protects both parties by setting reasonable expectations for quality, accountability, and the process for resolving defects should they arise.
Why Every Contractor Should Understand the Change Order Process Before Work Begins
Verbal Instructions Can Become Expensive
Construction projects move quickly, and it's common for decisions to be made during site meetings, walkthroughs, or conversations on the jobsite. A consultant may ask for a minor modification, an owner might request an additional feature, or a superintendent could instruct a crew to proceed immediately to avoid delaying the schedule. While these situations may seem routine, they often become the starting point for construction disputes because there is no written record confirming exactly what was requested, who authorized the work, or whether additional compensation was discussed.
Before signing a contract, review the change order provisions carefully to understand whether verbal instructions have any contractual effect. In many agreements, additional work is only compensable after written approval has been issued. Proceeding without that approval may leave you responsible for work you expected to be paid for. Even if you have an excellent relationship with the owner or consultant, relying solely on verbal directions introduces unnecessary commercial risk. A simple written confirmation sent immediately after the conversation can provide valuable evidence if questions arise later. Change orders are intended to formally document modifications to the original scope, helping all parties maintain a clear record of what has changed throughout the project.
Following the Contract's Notice Requirements
One of the most common reasons contractors lose otherwise valid claims is not because the work wasn't performed, but because the contract's notice requirements weren't followed. Most construction contracts establish strict procedures that must be followed whenever additional costs, delays, unforeseen site conditions, or changes to the scope of work occur. These provisions often specify how notice must be delivered, who must receive it, what information it should contain, and the deadline for submitting it.
Many contractors assume that discussing an issue during a progress meeting or sending an informal email is enough to satisfy these obligations. Unfortunately, contracts frequently require a much more formal process. Missing a notice deadline can weaken your entitlement to additional compensation or an extension of time, even when the underlying issue is legitimate. Before signing the agreement, take the time to understand every notice provision and incorporate those requirements into your project management procedures. Following the contract exactly is often just as important as performing the work itself.
Pricing and Approving Changes Correctly
Not every change order has the same financial impact. Some involve a small material substitution, while others fundamentally alter the scope, schedule, labour requirements, and overall cost of the project. Regardless of size, every proposed change should be evaluated before work begins so that both parties understand its effect on pricing and project timelines. Waiting until the work has already been completed to negotiate compensation almost always creates unnecessary tension.
A well-prepared change order should clearly describe the revised work, explain why the change is necessary, identify any schedule impacts, and establish the agreed price or pricing methodology before construction proceeds. This protects both the contractor and the owner by ensuring everyone shares the same expectations. It also creates a reliable project record that can be referenced if questions arise months later during payment reviews, project closeout, or dispute resolution. Investing a little more time in documenting changes properly often prevents far more expensive disagreements once the project reaches completion.
Schedule Obligations Go Far Beyond Meeting Deadlines
Extensions of Time
Construction schedules rarely unfold exactly as planned. Weather conditions, design revisions, unforeseen site conditions, late material deliveries, regulatory approvals, and owner requested changes can all affect the completion date. That doesn't automatically mean the contractor is responsible for every delay. Most construction contracts contain provisions allowing an extension of time when specific events occur, but those provisions are only effective if the contractual procedures are followed correctly. Before signing the agreement, understand which events qualify for additional time, what supporting documentation must be provided, and how quickly notice must be submitted after the delaying event occurs.
Many contractors mistakenly believe that if a delay is clearly outside their control, the schedule will simply be adjusted. In practice, entitlement to an extension often depends as much on proper documentation as it does on the cause of the delay itself. Daily reports, updated schedules, site photographs, correspondence, meeting minutes, and records demonstrating the impact on critical activities all strengthen a request for additional time. If these records are incomplete, proving entitlement months later becomes considerably more difficult. A well drafted extension of time clause protects both parties by establishing a fair process for addressing unavoidable delays instead of allowing disagreements to escalate into formal disputes.
Liquidated Damages
One clause that deserves careful attention before signing any construction contract is the liquidated damages provision. Unlike general damages, which must usually be proven after a loss occurs, liquidated damages establish in advance the amount the contractor will pay if the project is completed late. This predetermined amount is intended to compensate the owner for losses associated with delayed completion while avoiding lengthy arguments over the actual financial impact.
Before accepting these provisions, review when liquidated damages begin to apply, whether there is a maximum financial cap, and whether delays beyond your control are excluded. Equally important is understanding how the clause interacts with extensions of time. If the owner causes a delay but the contract grants an extension, liquidated damages may no longer apply during that period. Critical delays that are not the contractor's responsibility may entitle the contractor to additional time and, in some circumstances, compensation for resulting losses, making proper delay analysis an important part of project administration.
Concurrent Delays
Not every schedule dispute has a single cause. Construction projects often experience concurrent delays, where two or more delaying events occur during the same period. For example, an owner may issue late design information while the contractor simultaneously experiences labour shortages or equipment failures. Determining which event had the greater impact on the project's critical path can become one of the most technically complex aspects of a construction claim.
This is why contractors should understand how the contract addresses concurrent delays before work begins. Some agreements contain specific wording explaining whether extensions of time will be granted when both parties contribute to a delay, while others remain silent and leave the issue to be resolved through negotiation, expert analysis, or legal proceedings. Maintaining accurate project schedules, documenting progress consistently, and recording the sequence of events allows delays to be analyzed objectively rather than relying on memory after the project has ended. Good schedule records often become some of the most persuasive evidence if a dispute later develops.
Acceleration Requests
Sometimes the project falls behind schedule, yet the owner still expects the original completion date to be achieved. In those situations, contractors may be asked to accelerate the work by increasing manpower, adding equipment, authorizing overtime, resequencing activities, or bringing in additional subcontractors. While these measures may recover lost time, they almost always increase project costs and can affect productivity if implemented without proper planning.
Before agreeing to accelerate the schedule, determine whether the contract requires written authorization, how additional costs will be calculated, and whether the revised completion date will become the new contractual milestone. Proceeding without documenting these issues can leave contractors paying for acceleration measures that primarily benefit the owner. A clearly documented acceleration agreement protects both parties by defining the additional work, associated costs, schedule expectations, and compensation before changes are implemented, reducing the likelihood of disagreements once the project reaches completion.
How to Review a Construction Contract Like a Risk Manager
A Practical Pre-Signing Checklist
Before signing any construction contract, take a step back and review it from a risk management perspective instead of focusing only on the contract value. A few extra hours of review can prevent expensive disputes later.
Use this checklist before signing:
Verify that the scope of work is complete and clearly defined.
Confirm the payment schedule, holdbacks, and invoicing requirements.
Review change order procedures and notice requirements.
Understand indemnification, liability, and insurance obligations.
Check warranty and defect liability provisions.
Review delay clauses, extensions of time, and liquidated damages.
Ensure every verbal agreement has been included in the written contract.
Confirm your team can realistically comply with all contractual obligations.
If any clause seems unclear, unreasonable, or transfers more risk than expected, address it before signing rather than trying to resolve the issue after construction begins. A careful contract review is one of the most effective ways to protect your profitability, reduce disputes, and start the project with clear expectations for everyone involved.
The strongest contractors don't leave project success to chance. They build it into the contract before work even begins. Every clause you review, every question you ask, and every risk you identify before signing gives you greater control over your project's outcome. By understanding payment terms, change order procedures, liability provisions, scheduling obligations, insurance requirements, and warranty responsibilities, you put yourself in a much stronger position to protect your profitability while reducing the likelihood of costly disputes. A carefully reviewed contract establishes clear expectations for everyone involved and creates the foundation for a project that runs more efficiently from start to finish. Investing time in the review process today can save significant time, money, and frustration long after construction is underway.
Frequently Asked Questions
What should I review first before signing a construction contract?
Start by reviewing the scope of work, payment terms, schedule requirements, change order procedures, insurance obligations, and dispute resolution clauses. These sections define your responsibilities and often have the greatest impact on your financial and legal risk throughout the project.
Can I rely on verbal instructions during a construction project?
It's best not to. If the contract requires written approval for changes, verbal instructions alone may not entitle you to additional payment or schedule extensions. Always document requested changes and obtain written confirmation before proceeding whenever possible.
Why are change order procedures so important?
A clear change order process ensures that any modifications to the original scope are documented, priced, and approved before additional work begins. This reduces misunderstandings and helps prevent disputes over cost, schedule, and responsibility.
What are liquidated damages?
Liquidated damages are predetermined amounts that a contractor may be required to pay if the project is completed later than the agreed completion date. Before signing, understand when they apply, whether there are exceptions, and how they interact with approved extensions of time.
Why should I pay close attention to indemnification clauses?
Indemnification provisions determine when your company may be responsible for another party's losses, legal expenses, or claims. Broadly worded clauses can transfer significant financial risk, making them one of the most important sections to review before signing.
How do extensions of time protect contractors?
Extensions of time allow the contract completion date to be adjusted when qualifying delays occur, such as owner-directed changes or unforeseen conditions. Understanding the notice requirements and documentation needed to support an extension request can help preserve your contractual rights if delays arise.
Should I have every construction contract reviewed before signing?
For straightforward projects, an experienced internal review may be sufficient. However, for larger, more complex, or higher-value contracts, having the agreement reviewed by professionals experienced in construction contracts and risk management can identify unreasonable clauses before they become costly problems.
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