DMARC, Circuit Extension, & Riser Cabling Looking to expand or upgrade your carrier services? Are you looking to add new office space to the same multi-floor building you currently occupy? Casa Tech Systems can assist with the installation of your internet, phone, or TV service to your suite. Whether you need one or multiple Category 5E or 6, fiber optic, or RG-6/RG-11 cable we can help identify your cabling needs and provide you with excellent service in your DMARC extension. We can assist with the installation of network cabling feeds between floors, utilizing building riser rooms, to allow your network to be properly expanded without purchasing new incoming services.