One App for Everything!
Elec-Mate is my go to app for business and electrical work. It's feature rich without feeling cluttered. A true all in one app for quotes, certs, calculations, RAMS, EICRs, and more. I use it every day without fail, and it makes my workflow much smoother since I'm not jumping between apps anymore. The price-to-feature ratio is excellent. Any issues I've had, the developer responds within the hour and usually fixes them the same day. 100% recommend.
Social Media (Local Facebook + Instagram)
Local Facebook groups (your town + surrounding villages) are surprisingly high-converting for domestic work. Post a regular "I’m an electrician based in [town] — happy to quote any electrical work" once a fortnight, plus before/after photos of finished jobs. Instagram works for visual jobs (smart home, kitchen lighting, EV chargers). Both are free to use.