Emerald Electrical - San Mateo's Certified Electrical Repair

Yes, aluminum wiring in homes built roughly between 1965 and 1973 can be a fire hazard due to oxidation and loosening connections over time. For San Mateo residents, this is a common and important safety issue. Emerald Electrical can perform a thorough inspection to assess the condition of your existing wiring. We offer solutions such as installing specially rated connectors (CO/ALR devices) at all outlets and switches or recommending a partial or complete rewiring with modern copper to ensure your home's electrical system is safe and reliable.

Arc fault circuit interrupters (AFCIs) are safety devices required in modern homes that trip when they detect dangerous electrical arcing. Nuisance trips are common and can be caused by appliances with motors, damaged cords, or even wiring hidden in walls. Our electricians at Emerald Electrical are experienced in diagnosing the root cause of persistent AFCI trips in San Mateo homes. We systematically troubleshoot the circuit, identify if the issue is with a specific appliance, faulty wiring, or a sensitive breaker, and provide a lasting repair to restore power and safety.

An electrical panel upgrade involves replacing your home's main service panel and often increasing its amperage capacity (e.g., from 100 amps to 200 amps). Homes in San Mateo may need this upgrade when adding major appliances, installing an EV charger or generator, experiencing frequent breaker trips, or if the existing panel is outdated and no longer meets safety codes. As licensed contractors, Emerald Electrical handles the entire process—from obtaining necessary permits with the city to installing a new, code-compliant panel—ensuring your home's electrical system can safely support your current and future power needs.