Avoid

I had ADT come out to my house, promised a quick and easy installation, so I paid a deposit, 2 weeks later no show from anyone including the sales rep.

finally had the installation and it wasn't as 'smooth' as promised.
I've had a few problems with the system every now and again as the system is NOT pet friendly

If you opt for police response not only is this not guaranteed but 3 false alarms and the police will black list you for 1 year.

they will increase your monthly payments when they feel like it and charge for you everything on top such as; services/repairs/replacements/materials/call outs.

I won't be using this company again