- HEP Plumbing
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Backflow Preventers
Backflow Preventers | Commercial Plumbing | Plumbing | Philadelphia
Philadelphia businesses count on HEP to keep their water systems safe, code-compliant, and running without interruption. Our licensed technicians install, test, and maintain backflow preventers that guard against contaminated water reversing into your clean supply, protecting patrons, employees, and your reputation. From corner cafés to high-rise complexes, we arrive on schedule, handle all permits and paperwork, and leave your site spotless—so you can focus on serving customers, not wrestling with valves.
When you partner with HEP for commercial plumbing backflow services, you gain 24/7 emergency support, transparent pricing, and the confidence that every assembly meets the latest city and state regulations. Discover why facility managers across Philadelphia trust our responsive team to keep their water flowing one way: safely forward. Contact us today to schedule your annual inspection or a free system assessment.
FAQs
What is a backflow preventer and why is it required in commercial properties in Philadelphia?
A backflow preventer is a mechanical plumbing device that stops contaminated water or chemicals from flowing backward into the public drinking-water system. Philadelphia’s Plumbing Code, enforced by the Philadelphia Water Department (PWD) and the Department of Licenses & Inspections (L&I), mandates backflow prevention in most commercial buildings to protect the city’s potable water supply from cross-connections created by fire-suppression systems, HVAC make-up lines, chemical dispensers, and other equipment that can introduce pollutants.
Which types of commercial facilities in Philadelphia are required to install backflow prevention devices?
Nearly all non-residential properties—including office buildings, restaurants, factories, schools, hospitals, laboratories, mixed-use developments, and any site with a dedicated fire-sprinkler or irrigation system—must install an approved backflow preventer on every potable-water service line and on certain branch lines. High-hazard occupancies (e.g., those that handle chemicals, medical waste, or industrial processes) typically need a reduced-pressure principle assembly (RPZ), while standard commercial facilities may be allowed to use a double-check valve assembly (DCVA) if no severe hazard exists.
How often does the Philadelphia Water Department require backflow preventers to be tested, and who can perform the test?
PWD requires testing immediately after installation and at least once every 12 months thereafter. High-hazard devices (RPZ and pressure vacuum breakers) may require semi-annual testing if noted on the permit. All testing must be completed by a certified Pennsylvania backflow prevention assembly tester who also holds a valid Philadelphia Journeyman or Master Plumber License. Test results must be documented on PWD Form BF01 and submitted electronically through the PWD Cross-Connection Control Program within 30 days of the test date.
What are the penalties for non-compliance with Philadelphia’s backflow prevention regulations?
Failure to install, test, or maintain a backflow preventer can lead to violation notices, fines up to $2,000 per occurrence, water-service termination, or mandatory court appearances. L&I may also withhold or revoke Certificates of Occupancy and building permits. In the event of a contamination incident linked to a non-compliant property, the business may face costly civil liability claims and cleanup expenses.
How long does a typical backflow preventer installation or replacement take for a commercial building?
For most small- to medium-size commercial buildings, installation or replacement of a single backflow preventer can be completed in four to eight hours, provided shut-off valves and piping are accessible. Large facilities with multiple service lines, fire pumps, or confined-space vaults may require one to three full days. Coordinating with building management to schedule a temporary water shutdown and passing final inspection by L&I can add extra time, so advance planning is essential.
What maintenance steps can Philadelphia businesses take to ensure their backflow preventers remain in good working order between annual tests?
• Keep device vaults pumped out and dry to prevent corrosion and freeze damage. • Exercise inlet and outlet shut-off valves monthly to avoid seizure. • Install heat tracing or insulation on exterior or unheated assemblies. • Check for leaks, unusual pressure drops, or discharge from the relief valve. • Maintain accurate records of all repairs and tests in case of a PWD audit. • Schedule preventive maintenance with a licensed commercial plumber who is familiar with Philadelphia’s cross-connection control requirements, ensuring parts are readily available if an emergency repair is needed.