All Articles
September 4, 2018Guide3 min read

Why (and Where) Construction Bonds are Required for Public Projects

T
By Thomas Emalfarb, Esq. · Updated September 6, 2022

Construction contractors are well familiar with their state's mechanics lien laws, but if they've never worked on a public works project, then the construction bond requirements may come as a bit of a surprise. However, when you learn more about bonds, you learn they're a great tool for protecting owners, subcontractors, and suppliers from payment problems on public projects, just like mechanics liens protect you on private projects. They also protect the project owner, in this case the federal, state, or local government, from problems and ensure the project is completed as anticipated.

Why are Construction Bonds Necessary?

When you get a contract to quote or do work on a publicly owned project, from building a new school to handling road maintenance, your customer (the owner) is the state. If there's a problem, it would be difficult to place a lien on the public piece of property and foreclose on it, especially if you're a subcontractor on the project. To get around this problem, the general contractor working on a public project purchases a construction bond, a surety which provide the dual benefit of protecting both sides of the arrangement. While some private projects also require bonds, almost all public projects require them.

Depending on the type of bond purchased, the bond company becomes responsible for both ensuring performance of the project and guarantee that contractors and subcontractors are paid. The surety company checks the general contractor to ensure they have the capabilities and financial wherewithal to manage and complete the project.

There are several types of bonds which can be purchased individually or as a package depending on the situation, the needs of the parties, and state laws. For example: bid bonds protect the property owner in the event they select a quote, and then the selected contractor backs out of the arrangement, performance bonds protect the owner and ensure the work on the project is completed to the highest standard indicated by the contract, while payment bonds ensure that the winning contractor has the means to pay their subcontractors and suppliers.

Where are Construction Bonds Required?

The exact requirements for construction bonds vary from state to state, so it's important to review them before bidding on a public project. The requirements may vary depending on whether the project is a state-level project, or whether it's being funded by a county or municipality. The requirements may also vary depending on the type of project, such as highway construction, public buildings, etc.

In general, there's a minimum contract value, and contracts under that value are exempted from obtaining construction bonds. The value of the bond may also vary from the entire value of the contract to a smaller portion of the contract amount.

If you're unsure whether the project you're working on requires a construction bond, or you want help you reviewing the specific situation and determine the best course of action, reach out to the team of experienced construction attorneys at National Lien and Bond. We offer lien seminars to help potential new clients get to know us while learning about the nuances of mechanics liens and construction bonds that apply to the area they're working in. Contact us today to set up a seminar for your company.

construction bonds
public projects
payment bond
performance bond
bid bond

Related Articles

Unpaid-balance lien states infographic - in unpaid balance lien states you are racing against two deadlines: the statutory deadline to file a mechanics lien, and the moment the owner pays the general contractor in full, which can limit or eliminate your lien rights.
June 26, 2026Guide

Unpaid-Balance Lien States: Why You're Racing Against Two Deadlines, Not One

In an unpaid-balance lien state, the calendar deadline to record your lien is only half the race. The hidden second deadline is the moment the owner finishes paying the general contractor - because that payment can shrink or erase the fund your lien attaches to. This guide explains both deadlines, why subcontractors and suppliers lose money even when they file 'on time,' and the notice-and-timing strategy that protects your leverage.

Read Article
Connecticut Mechanics Lien Law guide - the lower-tier notice of intent, the 90-day certificate recording deadline, the 30-day owner-service requirement, the one-year foreclosure and lis pendens deadline, the lienable-fund limit, and contractor registration.
June 20, 2026Guide

Connecticut Mechanics Lien Law: Notices, Deadlines, Lien Rights, and Contractor Registration

Connecticut treats original contractors and lower-tier claimants differently. This guide covers the lower-tier notice of intent, the 90-day certificate recording deadline, the 30-day owner-service requirement, the one-year foreclosure-and-lis-pendens deadline, the lienable-fund limit on subcontractor liens, who can claim, and how Home Improvement Act and New Home Construction registration affect enforcement.

Read Article
Delaware Mechanics Lien Law guide - the statement of claim, the 180-day and 120-day filing deadlines, the prior-written-consent rule for tenant work, the $25 threshold, the pleading elements, and contractor registration.
June 20, 2026Guide

Delaware Mechanics Lien Law: Statement of Claim, Deadlines, Lien Rights, and Contractor Registration

Delaware enforces mechanics liens through a strictly construed statement of claim filed in Superior Court. This guide covers the 180-day and 120-day filing deadlines, the prior-written-consent rule for tenant work, the statement-of-claim pleading elements, the $25 threshold, who can claim, and Delaware contractor registration and business licensing.

Read Article
Deadlines Are Unforgiving

Every Day You Wait Is a Day Closer to Missing Your Deadline

Construction lien deadlines are strict and unforgiving. Once they pass, your right to payment may be gone forever.

Contact Us