Make your licence easy to find. Electrical work isn't something people want to risk on the wrong person, so your licence number, insurance and workmanship guarantee should be near the top.
Describe the jobs people actually search for. Hardly anyone types “electrical contractor”. They search for switchboard upgrades, EV chargers, smoke alarms or an electrician near them, so those jobs need their own sections.
Give rough prices for common jobs like power points, downlights and smoke alarms. It answers the first question most people have and saves you quoting jobs that were never going to go ahead.
On a phone, the call button should be the biggest thing on the screen. Most electrical work starts with a phone call.