As a policy, we only install equipment and accessories we have our hands on from the beginning. However, some locations are authorized dealers for various products. Depending on the make and model, we will install these units but do not warranty products that we do not furnish. We instituted this policy as a safety precaution for you, and an effort to prolong the longevity of your system. By taking other products from other companies and attempting to cobble a solution together, our ability to maintain the quality of work we hold ourselves to would be greatly diminished.