How can I File a Third-Party Claim After a Construction Accident?

October 31, 2025 | By Abels & Annes, P.C.
How can I File a Third-Party Claim After a Construction Accident?

The doctor’s words confirm your fears. The injury you sustained on that Chicago job site is severe and permanent. It means more surgeries, a long and painful rehabilitation, and the stark reality that you may never return to the physically demanding work you have done your whole life. 

You have started the workers’ compensation process, so you know it will cover your medical bills and a part of your lost wages. You also know it provides nothing for your pain, your suffering, or the profound impact this injury will have on your family’s future. 

The only way to pursue full justice is to file a third-party claim, a separate personal injury lawsuit against the other companies whose negligence caused your construction accident.

Beyond Workers' Comp: The Blueprint for Justice

While a workers' compensation claim is a near-automatic process, a third-party lawsuit is a complex legal fight that your attorney must build and win for you. These are the principles that guide that fight.

  • Filing a third-party claim is your legal right. The law gives you the power to hold any company, other than your direct employer, financially accountable for its carelessness.
  • The success of your case depends on an immediate investigation. A law firm must act within hours to preserve evidence at the construction site before other companies dismantle, repair, or destroy it.
  • Identifying every potential third party is your lawyer’s main objective. This creates multiple avenues for recovery and increases the likelihood of securing the full compensation you need.
  • Unlike workers' compensation, a third-party lawsuit lets you demand compensation for the total human cost of your injury, including your pain, suffering, and loss of a normal life.
Heridas de Trabajo/Compensación de Trabajadores

After a construction injury, you proceed on two separate legal tracks at the same time. Recognizing how they differ shows why the second track, the third-party claim, is so essential to your future.

Track one: The workers' compensation claim

This is your claim against your own employer. The Illinois Workers' Compensation Act is a "no-fault" system. You do not have to prove your employer was negligent to receive benefits. 

In exchange for this automatic coverage, you cannot sue your employer directly for your injuries. The benefits are defined by law and limited to:

  • Payment of your reasonable and necessary medical treatment.
  • Temporary Total Disability (TTD) benefits, which cover two-thirds of your average weekly wage while you cannot work.
  • Permanent Partial Disability (PPD) or Permanent Total Disability (PTD) benefits if your injury causes a permanent impairment.

The Illinois Workers' Compensation Commission provides a detailed handbook on employee rights. What this system does NOT provide is any money for your physical pain, your emotional trauma, your scarring and disfigurement, or the loss of enjoyment of your life. 

It is a system designed to provide a basic financial safety net, not to make you whole.

Track two: The third-party personal injury lawsuit

This is the legal action your attorney files and litigates for you. This is a fault-based lawsuit. Your lawyer’s job is to prove that the negligence of one or more separate companies on the job site was a direct cause of your construction injuries. The list of potential defendants is long, and the compensation available is far more comprehensive. This is where you can demand full and fair justice for every way this injury has changed your life.

How a Lawyer Identifies Liable Third Parties

A modern construction site is a bustling ecosystem of dozens of different companies working in the same space. The general contractor oversees the project, but they hire numerous subcontractors to handle specialized work like electrical, plumbing, masonry, and HVAC. 

There are also equipment suppliers, architects, engineers, and property owners. When an accident happens, the negligence of any one of these entities can be the cause. 

Your attorney’s investigation is a meticulous process of untangling this web of responsibility to identify every company that shares the blame for your harm.

A law firm will investigate every potential defendant. Your personal injury lawyer directs and manages this demanding process for you. 

Common third parties in construction cases include:

  • The general contractor (GC): The GC has a non-delegable duty to maintain a safe worksite for all workers, not just its own employees. This legal concept means the GC cannot pass the blame to a subcontractor; the ultimate responsibility for site safety rests with them. 

Your lawyer uses this principle to hold the GC accountable for the overall safety failures that led to your injury, even if another company's employee created the immediate hazard. If they failed to coordinate site safety, enforce OSHA regulations, or fix a known hazard, they are a primary target.

Your lawyer will subpoena the GC’s site safety plan, daily logs, and inspection reports to prove these failures.

  • A different subcontractor: This is the most frequent scenario. For example, if you are a carpenter who trips over debris left in a walkway by an electrical crew, the electrical company is a liable third party. If you are a plumber injured when a poorly constructed scaffold built by a masonry crew collapses, the masonry company is a liable third party.
  • The property owner or developer: The owner of the land where the construction takes place can be held liable if they knew about a pre-existing, hidden danger on the property and failed to warn the contractors.
  • Architects and design engineers: If a structural collapse or other accident results from a fundamental flaw in the building’s design, the architectural or engineering firm that created the plans can be held responsible for professional negligence.
  • Equipment manufacturers: If a tool or piece of heavy machinery malfunctioned due to a manufacturing or design defect and injured you, the company that made that equipment can be sued in a product liability claim.
  • Equipment rental companies: Companies that rent out equipment like lifts, cranes, and excavators have a duty to ensure that equipment is properly maintained and safe. If they rent out a defective or poorly maintained machine, they can be held liable.

Filing a third-party claim is a formal, aggressive legal process. It is not a matter of making a phone call to an insurance company. It is a battle that your law firm will wage on your behalf from start to finish.

Step one: Immediate investigation and evidence preservation

The moment you hire a law firm, its legal team acts. They may send an emergency response team, including investigators and engineers, to the construction site that same day. 

Their job is to photograph and document the accident scene before it is changed. At the same time, your construction accident attorney will draft and send legally binding spoliation letters to every potential third party, demanding that they preserve all evidence related to your accident. 

This is a direct command to not destroy the broken piece of equipment, the faulty scaffolding, or any relevant company records.

Step two: Filing the lawsuit

After the initial investigation, your attorney drafts a formal complaint. This legal document is filed with the court and officially begins your lawsuit. It names all the identified third-party defendants, lays out the facts of your case, and details the legal basis for holding them accountable for your injuries.

Step three: The discovery phase

This is the evidence-gathering phase of the lawsuit and often the longest part of the process. Your attorney uses a variety of legal tools to force the defendants to turn over information. 

This includes sending written questions (interrogatories), demanding the production of all relevant documents (like safety manuals, inspection logs, and internal emails), and conducting depositions. 

A deposition is a formal, recorded interview where your attorney questions the defendant’s employees, managers, and safety directors under oath. During a deposition, your attorney can question witnesses for hours, asking detailed questions about safety procedures, training protocols, and the events of your accident. 

This sworn testimony is locked in and can be used at trial. It is a powerful tool your lawyer uses to uncover the truth, expose contradictions between different witnesses' stories, and get company managers to admit to safety lapses that they would otherwise deny.

Step four: Negotiation and trial

Once your attorney has gathered the evidence, they have a clear picture of the strength of your case. They will present a formal settlement demand to the defendants’ insurance companies. 

Most cases are resolved through negotiation at this stage. However, if the insurance companies refuse to make a fair offer, your attorney will be fully prepared to take your case to trial and present your evidence to a jury.

Dealing with the Workers' Compensation Lien

It is important to know that your employer’s workers' compensation insurance carrier has a legal right to be repaid for the benefits it paid to you if you recover money from a third party. 

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This is referred to as a workers' compensation lien. For example, if they paid $100,000 in medical bills and lost wages, they will place a $100,000 lien on your third-party settlement.

A significant part of your lawyer’s job is to negotiate this lien down. Under Illinois law, the lien holder must pay its pro-rata share of your attorney's fees and costs. An experienced attorney can often negotiate a further reduction of the lien. 

This puts more of the final settlement money directly into your pocket. Your attorney handles this complex negotiation for you.

AI Cannot Negotiate a Workers' Comp Lien

An AI program might define a "third-party claim" or a "workers' compensation lien." But an algorithm cannot look an insurance adjuster in the eye and negotiate a multi-million dollar settlement. 

It cannot cross-examine a hostile witness in a deposition. It cannot understand the human cost of your pain and suffering and articulate that loss to a jury. For this fight, you need a dedicated human advocate.

Contact a Chicago Construction Accident Law Firm Today

You build things for a living. You know the importance of a solid foundation. After a devastating injury, the foundation of your family’s future rests on your ability to secure justice beyond the limited benefits of workers' compensation. 

Hire an Attorney

Filing a third-party claim is your only path to being made whole, and it is a path you cannot walk alone. Let us fight for you. The attorneys at Abels & Annes, P.C. know how to investigate a complex construction accident, identify every liable party, and build the powerful case you need to secure your future. 

Call us now at (312) 924-7575 for your free, no-obligation consultation. We are available 24/7, and you will pay no fee unless you win.