Serving the Entire Bay Area

Alliance Backflow Services is a leading plumbing company that specializes in Backflow Testing, Repair, Installation, Crane Services and Cross-Connection Control Services. We also provide installation of Backflow Metal Enclosures and Protective Insulated Backflow Covers to ensure the safety and compliance of your plumbing system.

Backflow prevention devices are essential for keeping your drinking water safe and free from contamination. These devices prevent dirty or hazardous water from flowing backward into your clean water supply, which can happen due to pressure changes in the plumbing system. Without proper prevention, harmful substances like chemicals, fertilizers, and bacteria could enter your water, posing serious health risks. Whether for residential, commercial, or industrial use, installing a backflow prevention device ensures compliance with safety regulations and protects your family, customers, and community. Invest in backflow prevention today to safeguard your water and enjoy peace of mind knowing your supply remains clean and safe.

Experienced, Licensed and Qualified Technicians

Testing

1/2”-12” Backflow Assemblies

During a backflow test, a certified technician inspects your backflow prevention device to make sure it’s working properly. They check for any leaks, pressure issues, or failures that could put your water at risk. Many cities and water providers require annual backflow testing to keep everyone safe and ensure compliance with health regulations.

Think of it like a routine health check for your plumbing—quick, easy, and essential for keeping your water fresh, clean, and safe to use. If your backflow device needs repairs, the technician will fix it right away so you can have peace of mind.

During a backflow device repair, a certified technician will inspect the unit, identify the issue, and replace or fix any faulty components. Common repairs include replacing worn-out rubber seals, cleaning or replacing check valves, and adjusting pressure settings to restore proper function. Once repaired, the device is tested to ensure it meets safety standards and is working correctly.

If your backflow device fails an inspection or you notice issues like low water pressure or leaks, it’s important to schedule a repair as soon as possible. A properly functioning backflow prevention device keeps your water safe, ensures compliance with local regulations, and provides peace of mind that your plumbing system is working as it should.

Repair

Installing a backflow assembly is a crucial step in keeping your drinking water safe from contamination. A backflow prevention assembly is designed to stop dirty or hazardous water from reversing flow and entering the clean water system due to pressure changes. This is especially important for properties with irrigation systems, fire sprinklers, or commercial plumbing setups.

During backflow assembly installation, a certified technician will assess your plumbing system and install the appropriate device based on your needs and local regulations. The process includes connecting the backflow preventer to your water line, securing it in place, and ensuring proper pressure flow. After installation, the assembly is tested to confirm it’s working correctly and preventing potential backflow.

Proper backflow installation ensures your home or business complies with health codes, keeps your water supply safe, and provides peace of mind. Whether it’s a new system or a replacement, investing in a professionally installed backflow assembly is essential for long-term water protection.

Installation

Alliance Backflow Services provides comprehensive Cross-Connection-Control solutions to safeguard your water systems from contamination risks. Our expert team conducts detailed property Surveys and Shutdown Tests to identify potential cross-connection hazards, ensuring your plumbing and irrigation systems comply with local safety regulations. We rigorously evaluate Backflow Prevention Devices under real-world conditions to confirm they block reverse flow during pressure drops or system disruptions. Whether for residential, commercial, or industrial properties, Alliance Backflow provides, certified expertise, and prompt service to protect your clean water supplies. From inspections, repairs and Installation, to compliance documentation, we deliver reliable, code-compliant solutions—because your health, safety, and peace of mind are worth defending. Trust Alliance Backflow Services to keep your water pure and your property protected.

Cross-Connection Control Services

Crane Services

Alliance Backflow Services streamlines backflow assembly replacement and installation with unmatched efficiency, thanks to our specialized 8,000-pound crane and 14-foot flat-bed. We make transporting and installing heavy or bulky backflow prevention assemblies effortless, eliminating the hassle of third-party equipment rentals or delays. Our crane’s precision lifting capabilities ensure swift, secure placement of devices directly at your job site, while the spacious flat-bed allows us to carry multiple units in a single trip—saving you time and reducing downtime to your customer. Whether it’s a routine installation, replacement, emergency repair, or complex project, our skilled team minimizes disruption to your operations, getting clean water systems up and running faster. With Alliance Backflow, you cut costs, avoid logistical headaches, and keep your business flowing smoothly. Your time matters—we’re here to save it!

CONNECT WITH US

Schedule your Backflow Testing, Repair, Installation, Crane Service or Cross-Connection Control Project Today!