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As a construction business owner, contract agreements are key to establishing a clear understanding between you and your customers. Any deal that is entered into for construction purposes requires a legally binding document. So, it’s important to understand what must be in a contract to protect your business and make your customers happy.

If you’re looking to learn the ins and outs of construction agreements, you’ve come to the right place. Hiro Capitals will Explain what a construction contract is. Highlight what a contract must include. Provide tips on how to create agreements that satisfy both parties.

  • Date: February 22, 2025
  • Client: Envato Group, US
  • Category:
  • Address: 2946 Angus Road, NY

Construction Contract

A construction contract agreement is a form that documents all of the work you will do for a customer. A contract is only valid once both parties ratify it by signing in agreement. In contrast to a contractor invoice, a construction contract is made before any of the work is done to ensure that both parties are in agreement. From that point, it serves as a point of reference throughout the job and enables the inspection and acceptance of completed work.

A contract always allows for modifications and change orders, but you must amend it accordingly — any area you modify requires proper documentation and reporting. A construction contract agreement terminates upon completion or satisfaction of contractual obligations.

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Design-build contracts

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Unit price contracts

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Time and material contracts

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Guaranteed maximum price contract (GMP)

Types of Construction Agreements

There are several different ways of going about construction contracts. Deciding which type to go with is one of the most difficult parts of making an agreement. That said, it’s key to know how to price a job and what format works best for your business before agreeing to a contract and taking on a new project. Here’s a quick guide through the different types of construction contract agreements.

1. Lump Sum contracts

A lump sum contract is the agreement to a single payment of money as opposed to a series of payments over time. A contractor will deliver services for a predetermined set price. This is one of the simplest agreement forms and works well for projects with a defined scope. There is also room to renegotiate with your clients with this agreement type.

2. Cost plus contracts

A cost plus contract is a construction agreement where the hiring party pays a contractor all construction-related expenses (cost) with an additional payment for profit (plus). These costs typically include direct costs such as: Labor. Materials. Equipment and supplies. Overhead costs such as insurance and administration are typically also included. At the end of a project, the contractor receives an agreed-upon amount which includes a markup percentage for profit.

3. Design-build contracts

If your business offers several construction project services, namely architect and engineer services in addition to building, then a design-build contract might be your best choice. Design-build contracts combine the design and construction of a project into one contract, as opposed to having two separate contracts Even if you’re collaborating with a designer and just doing the building, this contract type might still benefit the project as a whole. This method streamlines communication and makes it easier for you to account for changes.
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