Property Damage Claims

What Makes Property Damage the Most Common Liability Claim?

Property damage claims account for 23% of all general liability claims filed against contractors, making them the single largest category of GL exposure in the construction industry. The average property damage claim costs $45,000, but complex claims involving underground utilities, water intrusion, or structural damage to adjacent properties regularly exceed $150,000.

What makes property damage claims particularly challenging is their diversity. A property damage claim can arise from a backhoe striking a gas line, a plumber flooding a finished basement, an HVAC contractor damaging a roof membrane, or a painter overspray coating a neighbor’s vehicles. Every trade, every project, and every job site presents a different property damage profile.

I consistently advise contractors to understand the distinction between premises/operations coverage and completed operations coverage — because the timing of when damage occurs determines which part of your GL policy responds, and gaps in either can leave you paying out of pocket.

Premises/Operations vs. Completed Operations — Why the Distinction Matters

Your general liability policy divides property damage coverage into two critical categories, and misunderstanding the difference is one of the most expensive mistakes a contractor can make.

Premises/operations coverage responds to property damage that occurs during active work. If your excavator damages a neighboring building’s foundation while digging footings, that is a premises/operations claim. The damage happens while you are on site and working.

Completed operations coverage responds to property damage that arises after you have finished your work and left the project. If a roof you installed develops leaks six months later and causes $80,000 in water damage to the building interior, that is a completed operations claim.

Completed operations claims are often larger than premises/operations claims because damage has time to compound before discovery. A slow leak from defective plumbing work can cause $50,000-$200,000 in mold remediation, structural repair, and tenant displacement costs by the time the source is identified.

Both coverages must be in force for your protection to be complete. Letting your GL policy lapse after finishing a project eliminates completed operations coverage — and completed operations claims can surface years after the work was done.

Underground Utility Damage — The Hidden $1.5 Billion Problem

The Common Ground Alliance reports that underground utility damage costs an estimated $1.5 billion annually in the United States. For excavation contractors, utility contractors, and any trade that breaks ground, underground utility strikes represent one of the highest-severity property damage exposures.

A single gas line strike can trigger evacuation of surrounding buildings, emergency response costs, utility repair, and business interruption claims from affected businesses. Water main breaks flood basements, destroy inventory, and shut down operations. Fiber optic cable cuts can generate claims from telecommunications providers for repair costs and service interruption penalties.

811 Compliance Is Not Optional

Every state requires contractors to call 811 before excavation to have underground utilities marked. Despite this requirement, the CGA reports that excavation damage remains the leading cause of underground utility disruption. Failing to call 811 before digging can void your general liability coverage for the resulting damage — most policies exclude damage to underground utilities when the contractor failed to follow locate procedures.

• Call 811 at least 48-72 hours before any excavation (state requirements vary)
• Document all locate markings with photographs and GPS coordinates before breaking ground
• Hand-dig within the tolerance zone around marked utilities (typically 18-24 inches on each side)
• Maintain records of 811 tickets for every project — these are your first line of defense in a claim

Water Damage From Plumbing and HVAC — The #1 Property Claim Type

Water damage is the most frequently filed property damage claim in construction, and plumbing and HVAC contractors bear the largest share of this exposure. A burst pipe, a failed solder joint, a cracked condensate line, or a misaligned drain fitting can release hundreds or thousands of gallons of water into a finished space before anyone notices.

The damage compounds fast. Water migrates through walls, ceilings, and floor systems. Within 24-48 hours, mold growth begins in concealed spaces. What starts as a $5,000 pipe repair becomes a $75,000 mold remediation, drywall replacement, and flooring restoration project.

Water damage is the #1 property damage claim type in construction. Average remediation costs for water intrusion in commercial buildings range from $25,000 to $150,000 depending on how quickly the leak is discovered and the extent of mold development.

Pressure testing all plumbing systems before closing walls, documenting test results, and maintaining liability insurance with adequate completed operations limits are the critical protections for plumbing and HVAC contractors.

What does a real claim scenario look like? Excavator Hits Unmarked Water Main

An excavation contractor digging footings for a commercial building addition struck an unmarked 8-inch water main that was not shown on the 811 locate. The main break sent an estimated 50,000 gallons of water into the basement of an adjacent retail business over 45 minutes before the water district shut off the supply.

Claim Breakdown

• $165,000 — Water damage remediation including inventory destruction, flooring replacement, drywall demolition and rebuild, and mold treatment in the adjacent business
• $45,000 — Business interruption claim from the retail tenant for 6 weeks of lost revenue during restoration
• $22,000 — Water main repair and emergency response costs billed by the water district
• $232,000 — Total claim cost

The claim took 14 months to resolve due to disputes over the adequacy of the 811 locate and the water district’s mapping of the main. The excavation contractor’s GL policy responded because they had documented proof of the 811 call and photographs showing no markings in the excavation zone. Without that documentation, their carrier would have had grounds to deny the claim under the underground utility exclusion.

Neighbor Damage During Construction — A Growing Exposure

Construction projects on tight lots, in urban infill settings, or adjacent to occupied buildings create constant property damage exposure to neighboring properties. Vibration from pile driving cracks foundations. Dust and debris coat vehicles and outdoor equipment. Crane operations risk dropping loads on adjacent structures. Dewatering changes groundwater levels under neighboring buildings.

Pre-construction surveys of adjacent properties — documenting existing conditions with photographs and video — are the most effective defense against inflated or fraudulent neighbor damage claims. Without baseline documentation, you have no way to prove that the crack in the neighbor’s foundation existed before your project started.

• Pre-construction surveys: Photograph and video all adjacent structures before mobilization. Include cracks, staining, settlement, and any pre-existing damage.
• Vibration monitoring: Install seismographs when pile driving, heavy compaction, or demolition occurs within 50 feet of adjacent structures.
• Dust and debris control: Erect barriers, use water suppression, and document control measures daily.
• Communication: Notify adjacent property owners before work begins and provide a contact for complaints. Proactive communication reduces the likelihood of inflated claims.

Property Damage Claims by Industry

• Staffing Agencies — Property Damage Claims
• Structural Steel Contractors — Property Damage Claims
• Temp Staffing Companies — Property Damage Claims
• Towing Companies — Property Damage Claims
• Tree Service Companies — Property Damage Claims
• Trucking Companies — Property Damage Claims
• Tunneling Contractors — Property Damage Claims
• Restoration Contractors — Property Damage Claims

How does Coverage Axis approach Property Damage Risk?

We structure general liability programs that address your specific property damage exposures — not generic coverage that leaves gaps when a real claim hits. Our evaluation covers your trade-specific risk profile, completed operations exposure, underground utility work, water damage history, and neighbor damage protocols to build a program with the right limits and the right structure.

Property damage claims are the most common GL exposure contractors face, and they are also the most preventable with proper documentation and procedures. Reach out to Coverage Axis for a property damage risk assessment and GL program built for how you actually work.