If your tankless water heater isn’t delivering hot water like it used to, Sterling Mechanical is here to help. With over 25 years of HVAC and plumbing experience, our licensed technicians quickly diagnose and repair issues with all major tankless systems. From ignition failures and temperature fluctuations to low water pressure or error codes, we’ll get your unit running efficiently again — without the guesswork. We offer fast response times, transparent pricing, and no-hassle service throughout San Diego. Don’t wait on cold showers — book your repair today and restore comfort to your home.