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Areas served · Illinois

Forensic Engineering in Chicago

Forensic engineering services in Chicago, Illinois

In and around Chicago

What we investigate in Chicago

Two forces drive most of the Chicago-area losses we are called to evaluate: deep winter frost that heaves foundations, and water backing up through the old combined sewers and off the Des Plaines River. We document what actually failed, and a licensed engineer responds within 24 hours.

The conditions we see in Chicago

Cook County carries a high overall FEMA National Risk Index rating, flagged for cold wave, winter weather, strong wind, and lightning. The frost line here runs roughly 40 to 42 inches, and when frost lifts a footing over a season and drops it, walls and slabs crack. In older neighborhoods the combined storm-and-sanitary sewers back up into basements during heavy rain, and the Des Plaines River repeatedly reaches major flood stage in the western suburbs.

Chicago's stock is dense and old: roughly 30,000 greystones faced in Bedford limestone, brick two-flats and bungalows built largely between 1900 and 1930, and early steel-frame Chicago School high-rises. Northern Illinois also sits in a corridor that has taken documented derecho straight-line wind events, which tear off roofs and shatter high-rise glass. Aged masonry and wiring read differently under load, wind, and fire than modern construction, and telling storm damage from long-standing defect is often the whole question.

How we help in Chicago

The evaluations Chicago cases usually call for

Foundation, frost, and masonry evaluation

When a wall cracks or a slab heaves in Chicago, the cause can be deep frost, water intrusion, or a construction defect, and aging brick and greystone masonry adds its own failure modes. Our licensed engineers evaluate the structure and the ground together and document which one is responsible.

Our structural engineering services
Storm, wind, and water loss investigation

After a derecho, a straight-line wind event, or a sewer backup, we determine whether the damage came from wind, wind-driven rain, flooding, or a condition that predated the storm. That distinction decides the claim, so we base it on the physical evidence rather than assumption.

Our forensic engineering services
Hail and storm damage

We evaluate hail and wind damage across Chicago, separating fresh storm damage from wear, prior repairs, and conditions that predated the storm.

Our hail damage services in Chicago

Fire origin & cause

Fire origin and cause in Chicago

A long heating season keeps furnaces, boilers, and space heaters under load for months, and heating equipment is a leading cold-season cause here. Layer that onto aged, overloaded wiring in the city's older masonry apartment buildings, two-flats, and greystones, and a fire can start where the debris hides the cause. Dense attached construction lets it spread through shared walls, and reading where it began is what a claim turns on.

Our NAFI-certified investigators build every determination on NFPA 921. They examine the scene methodically, trace the char and burn patterns back to the area of origin, evaluate the electrical, heating, and mechanical systems, and work through the ignition sources until the physical evidence leaves one standing, accidental or incendiary. The investigator preserves that evidence early, documents the finding, and testifies to it at deposition and trial.

Fires we investigate

  • Residential and commercial fires
  • Heating-system and furnace fires
  • Electrical and appliance fires
  • Multi-unit and masonry-building fires
  • Vehicle fires
Our fire investigation in Chicago

Common questions

Forensic engineering in Chicago, Illinois

A different question about your case? An engineer, not a call center, answers within 24 hours.

Is foundation movement in Chicago from frost or from something else?

The frost line reaches 40 to 42 inches here, so seasonal frost heave is a common driver, but water intrusion and construction defects also move footings. We evaluate the movement pattern and the site conditions to determine the cause rather than assume it.

Can you tell derecho or storm wind damage from older damage?

Yes. Distinguishing straight-line wind and wind-driven rain from pre-existing wear or a defect is central to a Chicago storm claim, and we base the conclusion on the physical evidence at the property.

Do you charge travel to reach Chicago?

No. We work Chicago-area cases from our Omaha lab and Los Angeles office with no travel charges, and a licensed engineer responds within 24 hours.

Fire & Explosion InvestigationLed by NAFI-certified CFEIs
Licensed Professional EngineersPE & SE on staff
Independent Third PartyUnbiased, objective evaluations
Nationwide ResponseOmaha lab · Los Angeles office

Have a loss that needs answers?

Tell us what happened. An engineer, not a call center, will review your case.