Every construction project comes with its share of uncertainties. From unexpected site conditions to last-minute design changes, the risks can quickly add up and derail even the best-laid plans. This is where a construction contingency comes in — your financial safety net to cover unforeseen costs and keep the project on track.
Whether you’re a contractor or property owner, understanding construction contingencies can make all the difference in managing your budget and avoiding costly surprises.
What Is a Construction Contingency?
A construction contingency is a reserved portion of the project budget set aside to cover unexpected costs or risks that arise during construction. Think of it as an emergency fund specifically for your construction project. It’s designed to address unforeseen expenses without disrupting the overall budget or timeline.
For example, if your project encounters unexpected soil conditions requiring additional excavation, the contingency can absorb these costs without requiring additional funding or causing delays.
Why Is a Construction Contingency Important?
Construction projects rarely go exactly as planned. That’s why having a contingency is essential for:
- Managing Change Orders: Changes in scope or design during construction are common, and contingencies help cover these adjustments.
- Handling Unexpected Conditions: From weather delays to unforeseen site issues, contingencies provide financial flexibility.
- Preventing Budget Overruns: Without a contingency, unexpected costs can lead to financial strain or project delays.
Did you know? Cost overruns and delays are often a reality in large construction projects, but they don’t have to be. According to experts from Columbia University, taking proactive steps like having a solid contingency plan and using integrated contracts can help keep projects on track.
The NYC L train tunnel rehabilitation project, for example, finished early and under budget thanks to smart planning and oversight.
Types of Construction Contingencies
Construction contingencies come in three main types: Owner Contingency, Contractor Contingency, and Design Contingency.
- Owner Contingency: Reserved by the property owner to handle changes initiated on their end, such as additional features or upgrades.
- Contractor Contingency: Allocated by the contractor for unforeseen costs within their scope, like material price fluctuations.
- Design Contingency: Used during the design phase to address adjustments or refinements in plans.
For instance, a contractor might use their contingency to absorb higher-than-expected costs for materials, while the owner’s contingency might cover an upgrade to premium flooring.
How to Calculate a Construction Contingency
Calculating the right contingency amount depends on factors like project complexity and risk level. A general guideline is to allocate 5-10% of the total project budget for contingencies. Here’s how:
- Assess Project Risks: Identify potential risks, such as location-specific challenges or material shortages.
- Determine a Percentage: Use historical data and risk assessment to decide on a percentage. For complex projects, a higher percentage may be warranted.
- Incorporate into the Budget: Include the contingency as a distinct line item in your budget.
For example, if your project budget is $1 million, a 10% contingency means setting aside $100,000 to cover unforeseen costs.
Common Mistakes in Managing Construction Contingencies
Avoid these pitfalls to make the most of your contingency:
- Underestimating the Contingency Amount: Setting aside too little can leave you exposed to risks.
- Failing to Track Usage: Proper documentation ensures the contingency is used effectively.
- Misusing Contingency Funds: Using the contingency for non-essential upgrades can deplete it prematurely.
Pro Tip: Regularly review and adjust your contingency allocation using a construction management software, as the project progresses to align with emerging risks.
Learn more: How to Track and Improve Project Progress for Builders
FAQs About Construction Contingency
What’s the difference between a contingency and a budget buffer?
A contingency is for unexpected costs, while a buffer is a general reserve for overages.
How can contractors justify using contingencies?
Through clear documentation of unforeseen expenses and changes in project scope.
Is contingency money always spent?
No. If the project proceeds without major issues, the unused contingency remains part of the budget.
What factors influence the size of a construction contingency?
The size depends on project complexity, risk factors, and uncertainties in the design or construction process.
Can contingency funds be used for scope changes?
Yes, they can, but it’s typically up to the owner to approve changes that require additional funding.
How do you estimate an appropriate contingency amount?
Contingency amounts are usually estimated based on project size, type, and historical data from similar projects.
Building Confidence with Construction Contingency
A well-planned construction contingency is more than just a financial reserve—it’s a strategic tool that keeps your project on track, even when challenges arise. By understanding its purpose, types, and management strategies, you can protect your budget and ensure success. Effective team management is also crucial in navigating the unexpected, ensuring smooth project delivery.
Looking for help with construction contingency and management? Try Builtfront’s 14-day free trial to explore resources designed to guide you in managing contingencies and optimizing your construction management strategies, keeping your projects on track and within budget.