Strongly advised. Damage severity scales with property value, and many clients require proof before granting access.
Often yes. Collect certificates before work starts, or their claims land on your policy.
Inland marine covers furnishings and fixtures in transit and staged before install. Property coverage doesn't.
General liability covers damage to the client's property. Damage to the item you're installing may be treated differently.
Yes. Wrong measurements, materials or finishes are E&O claims, and rework costs are the usual damages.
