Hi, It all depends on what you want. How many protected doors/areas/windows, if you want a back up system, what type of panel you want or require, how many keypads you want... Our company it's $650.00 installed for a basic system. That usually includes one keypad, no back up system and 6-8 zones/devices. Most companies will come to your home and provide you with a free quote. Monitoring costs also vary. Ours are $20 a month plus GST or $40 a month with a back up system plus GST. Other companies can go up to $50 or more a month. All depends who you go with. :) As for quality, my person opinion, stick with a hardwired system. Wireless systems are a pain in the behind. You can also get other things added onto your system such as CO2 detectors, low temperature devices, high water (sump pump) alarms, etc. So it definitley all depends. Could be anywhere from $500 - $2000. If you have anymore questions feel free to e-mail me from my profile page.