They may know you as the electrician who fixed an outlet or replaced a breaker.
They may not know you also handle EV chargers, panel upgrades, surge protection, generators, lighting, smart-home upgrades or other electrical work.
Email gives you a reason to educate customers about services they may need next, while sharing useful information that keeps your company relevant.
No endless promotions. No newsletter simply because another month rolled around.
Show them what else you can do.