The answer to 'how to fix emergency electrical service' is to first identify and address any immediate safety hazards, then call a licensed and insured electrical contractor to diagnose and repair the issue. Emergency electrical service typically involves restoring power, addressing electrical fires or sparks, or dealing with other urgent electrical problems that pose a safety risk.
When dealing with electrical emergencies, it's crucial to act quickly but also safely. Never attempt to fix a major electrical problem yourself unless you are a qualified electrician. Trying to do electrical work without the proper training and equipment can be extremely dangerous and lead to serious injury or even death.