
At Liberty Maintenance, we provide specialized RPZ (Reduced Pressure Zone) backflow prevention services for shelters, charter schools, and nonprofit facilities across New York City. Clean water is critical, and we make sure your systems stay protected, compliant, and contamination-free.
Certified testing to confirm that your backflow preventer is functioning properly and meets DEP standards.
Required yearly certification and documentation to ensure compliance with NYC Department of Environmental Protection regulations.
Professional installation of approved devices to stop contaminated water from entering your clean water supply.
Servicing faulty or aging components to restore function and reliability.
Quick diagnostics and resolution of flow reversal problems or pressure drops.
Ongoing service plans to keep your devices in peak condition year-round.
Complete filing and documentation to satisfy inspection, renewal, and reporting requirements.
We handle permits, inspections, and contractor scheduling to streamline the entire process.
Urgent response for leaks, failures, or contamination concerns requiring immediate attention.
Site evaluations to identify risks, assess system integrity, and recommend improvements.
We help prevent backflow contamination protecting the people who live work and study in your space.
Our certified technicians ensure all testing installation and repairs meet local regulations and deadlines.
Routine care extends the life of your devices and reduces the risk of emergency failures.
We bring deep knowledge of RPZ systems and understand how they interact with your broader plumbing infrastructure.
From equipment failures to code violations we respond quickly and resolve issues fast.
We take care of the paperwork inspections and coordination so you don't have to.
We’re proud to support nonprofits, housing organizations, and schools across New York City. Our client relationships are built on trust, transparency, and consistent results.














































Liberty Maintenance has been an invaluable partner to Westhab, delivering consistently high-quality service across our facilities. Their commitment to excellence is evident in every aspect of their work—from routine upkeep to urgent repairs.

Liberty Maintenance has consistently provided outstanding service to the CUCS facilities. Their staff are courteous, thorough, and proactive—often going above and beyond to ensure that nothing is overlooked.
With Liberty, your backflow systems stay compliant, and your water stays clean.
Whether you're planning ahead or managing a time-sensitive issue, our team is ready to help. Tell us a bit about your space and we’ll follow up shortly.