Allstar Plumbing, Heating & Air

Allstar Plumbing, Heating & Air has earned a 4.7-star average across 220 customer reviews in Rancho Cucamonga, California. The contractor operates around the clock, every day of the week, serving the broader Inland Empire including Rancho Cucamonga, Ontario, and Fontana. Homeowners consistently praise the company for sending a plumber the same day they call, with technicians arriving on time and communicating clearly throughout the process. Reviews highlight thorough diagnostics and a commitment to explaining exactly what is wrong and why.

Across more than two hundred reviews, customers repeatedly mention the same-day response and the quality of explanations they receive from technicians. The company handles emergency water heater replacements, drain cleaning, and complex septic or flood situations alongside routine fixture installations. Homeowners appreciate that technicians show them the actual problem rather than simply listing a repair, and that they take time to describe what caused the issue and what to watch for in the future. This transparency builds confidence that the work is done right rather than just quickly.

Reviewers named several technicians who delivered standout service. Nick arrived the same day, diagnosed a shower issue immediately, and explained the cause and prevention steps before leaving the job site clean. Ericsen impressed a customer whose home warranty contractor had stalled for weeks by getting the work done efficiently and professionally. Collin and his crew managed a combined plumbing, septic, and flooding problem with calm confidence, clearly outlining the causes and proposed solutions. Brennan provided rapid same-hour response at a business location, keeping the customer informed throughout the repair process.