One Flow Los Angeles Backflow Installation & Repair

John and OC Sprinkler Service earn strong marks across all four dimensions, with the large majority of reviewers praising his punctuality, friendliness, responsiveness, and transparent quoting process. Pricing is consistently described as fair, reasonable, and competitive, with multiple reviewers noting he was the lowest quote among several obtained. Project completion is generally strong, with ma... Read more

John and OC Sprinkler Service earn strong marks across all four dimensions, with the large majority of reviewers praising his punctuality, friendliness, responsiveness, and transparent quoting process. Pricing is consistently described as fair, reasonable, and competitive, with multiple reviewers noting he was the lowest quote among several obtained. Project completion is generally strong, with many reviews confirming jobs were finished thoroughly and callbacks honored under warranty, though a recurring and notable complaint across at least 4 reviews involves John failing to return calls or texts — a meaningful pattern that suppresses the professionalism and project completion scores. Experience scores well due to numerous specific mentions of technical skill, problem-solving ability, and quality workmanship, though two negative reviews explicitly allege incorrect installation and poor system design, including one claim that John is unlicensed. These negative signals are credible and specific enough to warrant score reductions rather than dismissal. Read less