Bid Security in Construction: What It Is & Why It Matters

bid security in construction

Imagine awarding a multi-million-dollar construction project only for the selected contractor to back out. Such situations put construction owners in a tight spot as they face lost momentum, delays, and the risk of losing money. 

This is why bid security is crucial in the construction tender process. Designed to protect project owners and guarantee contractor commitment, bid security serves as a safety net that ensures contractors mean business.  

But what exactly is bid security, and how does it work? Let's break it down. 

Table of contents:

What is Bid Security in Construction?  

Bid security in construction is a financial guarantee bidders provide to ensure they honor their proposals and follow through if awarded the construction contract. It's often requested from general contractors when they are invited to bid on a project. Similarly, GCs can request bid security from their subcontractors to get their commitment and accountability during the contractor procurement process

Typically required on public projects or large and complex jobs, bid security acts as a safeguard to protect project owners from financial losses and project delays caused by non-compliant or withdrawn bids. 

Bid Security Example 

Here's an example of how bid security works. Let’s say a construction company bidding on a $10 million public project is required to provide 5% bid security.  

To do that, the firm secures a bid bond for $500,000 through a surety company. This guarantees that if the contractor is awarded the contract but fails to proceed, the project owner will be compensated up to $500,000 to cover costs such as re-bidding. Doing so grants the owner financial protection and shows the company's commitment to the bidding process. 

Bid Security vs Bid Bond: Key Differences 

Bid security refers to a broad category of financial guarantees bidders provide to demonstrate their commitment to a project. The purpose is to protect project owners from financial losses if a bidder fails to follow through on their proposal or execute the contract.  

On the other hand, a bid bond is a specific type of bid security that functions as an insurance product issued by a surety company. Unlike other forms of bid security, a bid bond involves a third party (the surety) that guarantees the bidder's obligations.  

If the bidder defaults, the surety compensates the project owner up to the bond's value and may pursue reimbursement from the bidder.  

So, while both bid security and bid bond serve similar purposes, bid bonds offer specific legal and financial protections through the involvement of a surety. 

Types of Bid Security  

Bid security can come in different forms. Here are the types of bid security commonly used in construction projects: 

Certified Check 

A certified check is issued by a bank, guaranteeing that the bidder has sufficient funds to cover the specified amount. This form of bid security provides immediate assurance to project owners that the funds are readily available if the bidder defaults.  

Cashier's Check 

A cashier's check is drawn directly from the bank's funds and is backed by the issuing bank. It's a secure and widely accepted form of bid security, as it can offer immediate compensation to the project owner in case of bidder default. The bank sets aside the funds once the check is certified to guarantee that it won't bounce in the event of insufficient funds.  

Bid Bond 

A bid bond is a surety-backed guarantee that protects the project owner if the bidder withdraws or fails to honor the contract. It involves a surety company that pays the owner up to the bond's value if the bidder defaults. 

Letter of Credit 

A letter of credit is a commitment from a bank to pay the project owner a specified amount if the bidder fails to fulfill their obligations. It offers flexibility and security but often requires formal documentation and credit arrangements. 

The Miller Act and the Importance of Bid Security 

The Miller Act is a federal law in the United States that requires contractors on certain public construction projects to provide performance and payment bonds. This helps ensure that subcontractors and suppliers are paid and the project is completed as agreed. 

The Miller Act was enacted in 1935, replacing earlier legislation to address gaps in protections for laborers, suppliers, and subcontractors on federal projects. It established the requirement for bid, performance, and payment bonds on public construction contracts exceeding $150,000. 

How the Miller Act Impacts Bid Security and Construction Projects 

The Miller Act impacts federal construction projects in a number of areas. Consider the following. 

  • Enhances accountability - The Miller Act mandates bid security through bonds, ensuring contractors are financially capable and committed to fulfilling their obligations on federal projects. 
  • Protects public funds - By requiring bid and performance bonds, the Miller Act minimizes financial risks for taxpayers by guaranteeing project completion or compensating for non-performance. 
  • Secures payments for subcontractors and suppliers - The Act sees to it that all parties are paid, reducing disputes and promoting trust in federal construction projects. 
  • Encourages fair competition - With the requirement for bid security, the Miller Act creates a playing field where only qualified and financially stable contractors can bid on public projects. 

How to Obtain Bid Security Funds 

If you're a contractor who needs to obtain bid security funds, here are the steps you must take. 

Review Bid Documentation for Requirements 

Start by thoroughly reviewing the bid documentation provided by the project owner. This will outline the specific type of bid security required (e.g., certified check, cashier's check, bid bond) and the amount or percentage of the bid value.  

Pay attention to deadlines, submission formats, and additional requirements. Missing details or providing the wrong form of bid security could disqualify your bid. 

Work With a Surety Company 

If you're looking to obtain a bid bond, you must work with a surety company to do so. Surety companies have underwriting requirements to assess your qualifications and ability to fulfill the contract. They include the following: 

  • Collateral - Surety companies may require collateral as a guarantee to back the bond. Examples include assets like cash or property to reduce the risk of non-performance. 
  • Experience and reputation - Your track record as a contractor is critical. Surety companies evaluate your history of completing similar projects successfully to ensure reliability. 
  • Financial stability - Sureties review your financial statements, credit history, and cash flow to confirm you can meet project demands.  
  • Management capabilities - Surety companies may also assess your management team's qualifications, decision-making skills, and ability to oversee complex projects. 

Receive Bid Security and Submit Bid 

Once you've met all requirements and obtained the necessary bid security—whether it's a certified check, cashier's check, or bid bond—you're ready to include it with your bid submission.  

At this stage, you must carefully review the bid package and check that all documents are complete and formatted according to the project owner's specifications. From there, submit the bid and bid security together by the specified deadline. 

Getting these steps right demonstrates your commitment and professionalism and increases your chances of being awarded the contract. 

Win More Work With Centralized Bid Management 

How you manage the construction bidding process (including bid security) can make or break your chances of winning projects. Centralized bid management helps you organize bids, improve accuracy, and boost efficiency, giving you a strategic advantage. 

Ready to transform your bidding strategy? Learn how to win more work and streamline your processes with Autodesk's comprehensive guide, Win Work with Centralized Bid Management

Alyssa Schear

Alyssa has a variety of construction experience as a project engineer, estimator, and project manager. For 10 years, she estimated and managed a variety of large scale construction projects before rolling out a company-wide initiative to move to cloud based construction management. Currently at Autodesk, she leverages her expertise in implementation and change management, project planning, sustainability, safety and quality to develop solutions with her customers.