Understanding the Different Types of Construction Contracts

Construction Contract - Hammers Construction
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KEY TAKEAWAYS:

  • There are several types of construction contracts, each suited for different project needs and risks.
  • The most common contract types include lump sum, cost-plus, time and materials, and unit price contracts.
  • Choosing the right contract helps manage costs, timelines, and responsibilities efficiently.

 

Construction Contracts Matter

When starting a construction project, one of the most critical decisions is selecting the right contract. The types of construction contracts used can impact everything from project costs to risk management and payment structures. Whether you’re a business owner looking to build a commercial space or a contractor managing multiple projects, understanding these contract options is essential.

Construction Contract - Hammers Construction
Construction Contract – Hammers Construction

Each contract type offers different advantages and considerations. Let’s explore the most common types of construction contracts and how they work.

 

Common Types of Construction Contracts

Lump Sum Contracts: The Fixed-Price Option

A lump sum contract, also known as a fixed-price contract, is one of the simplest and most commonly used agreements in construction. In this type of contract, the total project cost is agreed upon upfront.

 

Pros:

  • Predictable costs with no surprises.
  • Simplifies budgeting and financing.
  • Encourages efficiency from contractors.

 

Cons:

  • Less flexibility if unforeseen changes arise.
  • Higher risk for contractors who must cover unexpected expenses.
  • Lump sum contracts are ideal for well-defined projects where the scope and requirements are clear from the beginning.

 

 

Cost-Plus Contracts: Paying for Flexibility

A cost-plus contract is structured so that the client pays for actual construction costs plus a predetermined percentage or fixed fee for the contractor’s profit. This option works well for projects where the scope is not fully defined.

 

Pros:

  • Greater flexibility for adjustments and design changes.
  • Ensures quality work without cutting corners to meet a fixed price.

 

Cons:

  • Costs can increase if not carefully monitored.
  • Requires detailed tracking of expenses.
  • This contract type is often used for complex or high-end projects where customization is key.

 

 

Time and Materials Contracts: Paying for What You Use

Under a time and materials contract, clients pay based on the time spent on the project and the materials used. Rates for labor and materials are agreed upon beforehand, making it a flexible approach for projects with evolving scopes.

 

Pros:

  • Adaptable to project changes and unexpected circumstances.
  • Transparent cost breakdown.

 

Cons:

  • Costs can escalate if the project takes longer than expected.
  • Requires close supervision to prevent inefficiencies.
  • This contract is often used for renovation projects or jobs where the scope isn’t fully defined at the outset.

 

 

Unit Price Contracts: Paying by the Task

A unit price contract breaks down the project into specific tasks or units of work, each with a fixed price. Payments are made based on completed work units rather than a total project sum.

 

Pros:

  • Clear pricing for each phase of the project.
  • Reduces disputes over cost calculations.

 

Cons:

  • The final cost can be uncertain if project quantities change.
  • Requires detailed tracking of unit progress.
  • Unit price contracts are common in roadwork, infrastructure projects, and jobs with repetitive tasks.

 

 

How to Choose the Right Construction Contract

When deciding between different types of construction contracts, consider the following:

  • Project Scope: Is it well-defined, or does it require flexibility?
  • Budget Stability: Do you need a fixed price, or are you comfortable with variable costs?
  • Risk Tolerance: Who will bear the financial risks — client or contractor?
  • Timeline Sensitivity: Do you need strict deadlines, or is a more adaptable timeline acceptable?

 

Each project is unique, and the right contract can ensure smoother execution, fewer disputes, and better financial control.

 

Hammers Construction: Your Partner in Construction Solutions

At Hammers Construction, we understand that every project has different needs. Whether you need a fixed-price approach, a flexible cost-plus contract, or a customized solution, our team will guide you in choosing the best types of construction contracts for your goals. Let us handle the complexities while you focus on the bigger picture. Contact Hammers Construction today to get started on your next project!

 

 

 

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About Hammers Construction

Over 60 years ago, Steve and Dave Hammers’ father began a commercial construction company in Northern Minnesota. Steve and Dave are carrying on the family tradition and passion for design-build construction. In 1986, the business bearing the family name, expanded to the Rocky Mountains. In 1991, Hammers Construction, Inc. (HCI) became an independent entity in Colorado Springs, CO. Over the years, HCI has earned a reputation for honesty, integrity, and professionalism in the very unique design-build construction industry.

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