Where can I buy Nucleus? Jacqueline DeJesse Updated September 07, 2016 22:31 Follow Nucleus is available for purchase at Amazon.com, Lowes.com, Lowes stores, and the Nucleus website. Related articles How much does Nucleus cost? Are there additional fees associated with my Nucleus device? How many Nucleus devices should I buy? I need to contact Support about my Nucleus How do I set up the Nucleus Mobile Companion App Comments 0 comments Please sign in to leave a comment.