Security proposals are easy to compare on price and hard to compare on substance. Two companies can quote the same hourly rate and deliver completely different outcomes, because the rate says nothing about supervision, training, reporting, or whether the officer will actually walk the route at 3 a.m.
A serious proposal starts with evidence that someone visited your property. It should name the posts, the patrol route, the hours of coverage, and the reason behind each. If the proposal could have been written without a site walk, it probably was.
Look for written post orders: who the officer reports to, how visitors and vendors are handled, what triggers a call to you and to police, and what the officer does in the most likely scenarios on your property. Then look at reporting: will you receive a shift log with timestamps and photos after every shift, or only when something goes wrong?
Ask about supervision and continuity. Who checks that the officer is on post? Will the same officers be assigned so they learn your property? What happens when someone calls in sick? And ask about licensing and insurance directly. A reputable company will hand you the documents without hesitation.
Finally, understand the contract terms. Is there a minimum length? What's the notice period? Are there discounts for longer commitments? Security Perú Services puts all of this in writing before the first shift, with no minimum term to start and savings of 5% or more for long-term contracts.