Backflow preventers are mechanical devices installed in plumbing and fire sprinkler systems to prevent water from flowing backward in the system and causing possible contamination to the water supply. Call a certified expert at Howe today and we can properly install, test, repair and continually maintain your backflow preventer, ensuring the system will work effectively and efficiently. Annual testing is often required by city and state codes. Our ABPA certified technicians can ensure your system is in compliance with these codes and provide a certified report. Howe also offers expert 24/7 emergency services and commercial maintenance for all plumbing, HVAC and fire protection equipment.