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Construction glossary
Construction Glossary •

Unconditional Lien Waiver

What is an unconditional lien waiver?

An unconditional lien waiver in the construction industry is a signed document from a contractor, subcontractor, materials supplier, laborer, or other party involved in a construction project, which gives up their right to place a lien on the property unconditionally, typically after they have received full or partial payment for their work or materials. It serves as a guarantee to the property owner that they will not face a lien, or legal claim against their property, for this party's unpaid work or supplies, regardless of whether the party is subsequently paid in full or not.

Unconditional waivers come in two forms, tied to when you're billing:

  1. Unconditional progress waiver: Submitted after you've been paid for a progress billing period. It waives your lien rights for the work covered by that payment.
  2. Unconditional final waiver: Submitted after you've received full and final payment, including retainage. It waives all your lien rights for the entire project.

Unlike a conditional waiver, an unconditional waiver takes effect the moment you sign it—whether or not the money has actually arrived. That makes timing critical: never sign one until the payment has cleared your account, or you'll have given up your lien rights with no guarantee of getting paid.

Trusted by trade contractors across the country

Other construction terms

Underbillings

What is Underbilling?

Underbilling refers to a scenario in the construction industry where the actual costs incurred on a project surpass the billed amount for a specific time period. Often occurring unintentionally due to unexpected cost variations, it results in a deficit situation for the contractor. It is essentially an imbalance where the contractor has delivered more work or materials than they have billed the client for. Underbilling can strain cash flow and disrupt project schedules if not addressed promptly. While this might prove beneficial to the client in the short term, contractors need to ensure that they identify and rectify underbilling to maintain project profitability and financial stability.

Milestone

What is a Milestone?

A milestone in the construction industry refers to a significant event or achievement in the life of a project. It marks a turning point that indicates the completion of a major phase, or a key deliverable. For instance, it could be the conclusion of the design phase, acquiring a building permit, or completion of site excavation. These markers serve as checkpoints to monitor progress, assess risks and ensure that the project is on schedule. They function as tools for communication among stakeholders about the status of the project, providing a clear picture of the project's trajectory. Furthermore, milestones can also provide a basis for payment, wherein a contractor may be paid upon reaching specific milestones. In essence, milestones are pivotal in construction project management, underpinning successful planning, coordination, and execution of projects.

Unit Price Contract

What is a Unit Price Contract?

A unit price contract is a widely used pricing model in the construction industry where general contractors (GCs) provide a fixed price for each unit of work and material (based on the anticipated quantities specified by the client). The final contract amount is calculated by multiplying the pre-agree unit prices by the actual quantities used or work performed.

This approach allows for flexibility as the total costs adjust to reflect actual usage. Therefore, unit price contracts are ideal for projects with uncertain material and work quantities, helping avoid cost overruns due to miscalculations.

For subcontractors, there are specific considerations when working with unit price contracts. It’s crucial to ensure precise unit price calculations to maintain profitability and implement sound systems for tracking and reporting actual quantities. Clear communication with the GC about quantity changes is also important, and subcontractors should be prepared to justify any discrepancies that may occur.

Siteline—an intuitive A/R management system—simplifies unit price billing for subcontractors, allowing them to:

  • Easily input and update unit prices;
  • Automatically calculate billing amounts based on reported quantities; and
  • Generate accurate, detailed pay applications that show up-to-date unit prices and quantities.

Ready to optimize your unit price billing process? Contact Siteline today to learn how our solution enhances A/R workflows to accelerate payments.

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