You make sure the gardener, cable guy, plumber, and roofer are insured, right? Often trade licensing carries a liability insurance requirement, but photography does not. You should still require it.
Liability means that if the photographer, or any other contractor working on your property, breaks something or hurts someone, they will be responsible for it, not you or your company. Altitude Arts carries $2 million in liability, plus other additional coverage.

Here’s a standard “Acord” certificate. Once you confirm that your photographer is insured, it’s your option to request an insurance certificate, or proof that you (your company is mentioned specifically) are covered. There may be small fee.
Not sure? Ask HR. The answer will be an unequivocal yes! Read a short column by Gordon Rudd, CISSP (a risk expert) here. And call me with questions!