You might also consider your local custom home automation installer. These service providers are often staffed by technicians certified to install home automation tech from providers like Control4, Crestron, or Vivant. They offer extensive customization options, high-end components, and often integrate with your home entertainment system as well. The benefits are similar to the options from ADT; someone else does the install for you, you might have a service contract included in case something goes wrong, but they can also be even more expensive both in the initial installation and via ongoing fees.
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