Pressure Washing Liability: What Happens When You Damage Someone's Property
High pressure and the wrong surface is a bad combination -- stripped paint, cracked siding, etched concrete, a shattered window from an errant wand angle. It happens to experienced operators, not just beginners. What actually happens next depends heavily on what you documented before you started and whether you're carrying the right coverage.
1. Document the property's condition before you ever turn on the machine
Timestamped photos of siding, windows, trim, and any pre-existing damage before you start work are the single most useful thing you can do to protect yourself. If a customer later claims you caused damage that was already there, photos settle the dispute in minutes instead of turning into a he-said-she-said argument.
This matters even more on older homes with already-fragile paint or siding, where pressure washing can reveal pre-existing wear that looks like new damage to an untrained eye.
2. General liability insurance is what actually pays for a real mistake
If you do cause genuine damage -- a cracked window, stripped paint that needs repainting -- general liability insurance is what covers the repair cost, not your own pocket. This is exactly why liability coverage is treated as close to non-negotiable for pressure washing specifically: the pressures involved (often 3000+ PSI) make property damage a realistic risk on nearly every job, not a rare edge case.
Confirm your policy actually covers the surfaces and pressure levels you work with -- some policies have exclusions or lower limits for certain services like roof cleaning, which carries its own distinct risk profile.
3. What to do in the moment if damage happens
Stop work immediately, photograph the damage clearly, and tell the customer directly rather than hoping they don't notice. Being upfront in the moment, before they discover it themselves, changes the entire tone of the conversation and often avoids an angry review or a legal escalation.
Contact your insurer promptly to start a claim rather than trying to informally settle a larger repair cost out of pocket -- that's exactly the situation the policy exists for.
4. Test an inconspicuous spot before committing to a full surface
On unfamiliar siding, trim, or painted surfaces, test pressure and chemical dilution on a small hidden area first -- behind a shrub, a corner near the ground -- before running the full job. This single habit catches most surface-specific problems before they become a full-property mistake.
Frequently asked questions
What should I do before starting a pressure washing job to protect myself?
Take timestamped photos of the property's condition, including any pre-existing damage, before you start work. This is the single best protection against later disputes over what caused damage.
Does general liability insurance cover pressure washing damage?
Typically yes for genuine accidental property damage, but confirm your specific policy covers the surfaces and pressure levels you use -- some policies have exclusions for higher-risk services like roof cleaning.
What should I do if I damage a customer's property mid-job?
Stop work, photograph the damage, and tell the customer directly and promptly rather than hoping they don't notice. Then contact your insurer to start a claim if the repair is beyond a minor fix.