Can I install a whole house surge protector myself safely?

It’s safest to have a licensed electrician install a whole‑house surge protector rather than doing it yourself. Castle Electric provides professional installation, testing, and options tailored to your home. Our licensed and insured electricians assess your system and recommend solutions. Surge devices redirect excess current to the grounding system and block about 80% of surges not caused by lightning. We offer free estimates, a $50 off coupon, and financing across Eastern Massachusetts, including Quincy and Newton. <br/> Updated: 2026-01-02 <br/> Need help in Quincy, MA? Call (781) 762-9891 or book online. "Would definitely recommend!" — Maggie A.