Make sure your contractor carries general liability insurance. This type of insurance protects your property in case of damage caused by the contractor and/or his employees. The insurance company will pay for the cost of replacing, and/or repairing any damage that occurs. Anyone can say they are insured. Make the contractor prove it by having a certificate of insurance. Make sure your contractor carries workers’ compensation insurance. It protects you from liability if a worker is injured while on your property. Be aware that if the contractor does not carry workers’ compensation coverage, you may be liable for any injuries suffered by the contractor, or any of his employees on your property. In short, it is much safer to deal with a fully insured contractor.