Get a free in-home estimate for the following services provided to you by Callidus Electric 24 Hour Emergency Service Emergencies don't wait for convenient times to happen. That's why Callidus Electric is available 24/7 to help you keep the lights on. Residential Electricians No project is too big or too small for Callidus - from ceiling fans to home theaters, we do it all. Commercial Electricians Some of the biggest commercial brands in Las Vegas, NV trust Callidus as their commercial electricians, and you can too.