They attract neighborhood kids and if one sneaks in and is injured, you're still on the hook even if they didn't have your permission.

Would I need to get permission from the landlord to do this?  

Don't want to name an unrelated party here without her permission...

If you have a good lease it should have a clause saying tenant should not install anything to premises without landlord permission and anything affixed to property becomes property of landlord upon vacating. if you know they wanna do it, have them sing an addendum stating that it must be installed by a professional installer (probably the company she buys it from) and that when she leaves it becomes your property, unless you want it removed, in which case she would have to pay to repair any damage. however, I imagine it might be a nice plus to tell future prospects that the house is wired for a security system.

Them signing a lease means they acknowledge you as the one entitled to possession, and they are entitled to stay only with your permission.

This company is not a BBB accredited business and does not have permission to use BBB's logo on their website.

I had to do serve my first eviction notice about 2 months ago.I served my tenants with a 60 days eviction notice after they modified the electrical box without permission leaving exposed live wires.  

Does anyone have experience with getting a permit or know what the process of getting permission from the city looks like?

In regards to James post, and hopefully this is permissible, below is a link to a copy of Delaware's Agreement of Sale for Residential Property...https://www.wardtaylor.com/documents/AGREEMENT_OF_SALE_for_DELAWARE_RESIDENTIAL_PROPERTY.pdf

This is also allowed, with Broker permission.