Certified Backflow Testing Services in Westchester County, NY For Only $75
GUARDIAN BACKFLOW TESTING “Guarding your water, one test at a time“
$75 Backflow Testing Throughout Westchester County New York
“Built on Experience. Known for Fair Pricing.”
Since 1994, Christopher Bonanno, has proudly served as a New York State Certified Backflow Tester, dedicating his career to protecting our community’s water supply with integrity, experience, and a personal commitment you can trust.
Because protecting our community’s water supply shouldn’t come with stress, confusion, or inflated costs.
In this day and age, we all need to watch our budgets.💰
That’s why our way of giving back and helping our local community is simple and honest: Our pricing is affordable not because we “Cut Corners”, but because we choose to operate efficiently and give back to the local communities we LOVE ❤️ and serve. Guardian Backflow Testing LLC offers dependable, certified backflow testing services across all of Westchester County, New York, and we keep pricing simple with a flat rate of ($75) per Backflow Test. Whether you own a residential home or manage a commercial property, our certified testers provide accurate testing, fast results, and full compliance with local Westchester water department regulations. We proudly serve communities such as Yonkers, White Plains, New Rochelle, Mount Vernon, Eastchester, Bronxville, Scarsdale, Mamaroneck, Larchmont, Harrison, Sleepy Hollow, Tarrytown, Ossining, Ardsley, Hastings-on -Hudson, Portchester, Rye and all the surrounding areas. One of our main priorities is ensuring property owners and managers receive affordable, high-quality service without hidden fees. When you need reliable annual backflow testing at a fair price, Guardian Backflow Testing LLC is the trusted local expert.
Why Else Choose Guardian Backflow Testing LLC?
Guaranteed Lowest Prices
- ✅ Lowest prices in Westchester County — guaranteed.
- ✅ Certified & insured technicians with decades of experience.
- ✅ Fast, professional same-day testing
- ✅ 24/7 availability — NO after-hours, weekend, or emergency fees ever.
- ✅ Serving all of Westchester County and surrounding areas.
- ✅ We Submit All Of The Paperwork
- ✅ ABSOLUTELY NO ❌ HIDDEN FEES
“A Family Business Built on Trust, Care, and Protection”
At Guardian Backflow Testing, our work begins with family. As a family-owned and operated business, protecting clean, safe drinking water is something we take personally — because it’s the same water our own families drink every day. We believe our customers deserve the same care, honesty, and respect we give to our own loved ones. That means showing up on time, doing the job the right way, and standing behind our work without shortcuts or excuses. Every backflow test is performed to New York State standards, so you can rest easy knowing your water, your property, and the people you care most about are protected by a company that truly cares.
Our Services
🔹 Backflow Testing & Certification
Annual testing for RPZ, DCV, and PVB devices. We handle inspection, documentation, and submission directly to your local water authority — including Veolia, Westchester Joint Water Works, and other providers.
🔹 Installation & Repairs
Need a new device or repair? We install and service all major brands, providing honest recommendations and affordable pricing.
🔹 Emergency Backflow Services
Leaks or failed devices? We offer 24-hour emergency response at no additional cost.
Schedule A Backflow Test Westchester NY
We Truly Love What We Do
At Guardian Backflow Testing LLC, we truly love what we do and that shows in every backflow testing service we provide. Protecting our community’s water supply is more than just a job to us; it’s our passion. We take pride in offering reliable, professional, and friendly service to each of our customers, ensuring their backflow prevention systems are safe, compliant, and functioning properly. Whether we’re helping a homeowner, a property manager, or a local business, our goal is always the same: to deliver exceptional backflow testing with care, honesty, and attention to detail.
We Service All Of Westchester County N.Y.
We proudly serve:
New Rochelle, Larchmont, Mamaroneck, Yonkers, White Plains, Mount Vernon, Harrison, Sleepy Hollow, Tarrytown, Ardsley, Dobbs Ferry, Eastchester, Scarsdale, Rye, Port Chester, Pelham, Tuckahoe, Ossining, Hastings, Chappaqua, Armonk, Purchase, Mount Kisco, Briarcliff Manor, Elmsford, Katonah, Bedford, Croton-on-Hudson, Montrose, Irvington, Thornwood, Valhalla, and all surrounding areas.
WHY SPEND THOUSANDS REPLACING A DEVICE THAT MAY ONLY NEED A PROFESSIONAL REPAIR?
Many backflow testing companies are quick to tell customers they need an expensive backflow preventer replacement — when in reality, most devices can often be professionally repaired and restored for a fraction of the cost.
At Guardian Backflow Testing LLC, we believe in HONEST service, FAIR pricing, and doing what’s truly best for our customers — not what makes the biggest profit.
With over 35 years of industry experience, our certified backflow specialists have seen it all. In many cases, leaking or failed backflow devices simply need proper maintenance, cleaning, rebuilding, or replacement of internal rubber components — NOT a complete device replacement. Unfortunately, many companies immediately recommend replacing the entire assembly because it generates larger invoices and higher profits.
That’s not how we do business.
Our New York State certified, and insured technicians carefully inspect every device and always look for the most cost-effective repair solution FIRST before suggesting replacement. We believe homeowners, businesses, and property managers deserve transparency and trustworthy recommendations — not scare tactics.
Before you replace your backflow preventer… call Guardian Backflow Testing LLC for an honest second opinion!
We are a (BBB) Accredited Business
Proud to Be a BBB-Accredited Backflow Testing Company Serving Westchester County
Guardian Backflow Testing LLC is proud to be an accredited BBB (Better Business Bureau) business, a mark of our trusted reputation and dedication to exceptional customer service. With over 35 years of experience in certified backflow prevention and testing, we’re passionate about protecting New York’s water supply and serving our Westchester County community with honesty, reliability, and professionalism. Our certified and insured backflow testers provide affordable, same-day service and 24/7 emergency backflow testing at no extra cost. From residential properties to commercial buildings, we ensure full compliance with local water regulations while offering a lowest-price guarantee and fast turnaround times. At Guardian Backflow Testing, we’re committed to keeping your drinking water safe — and our BBB accreditation stands as proof of our integrity, quality, and community focus.
Commitment To Education,Industry Practices & Service
Proud Member of The American Backflow Prevention Association
Guardian Backflow Testing LLC — Proud Member of the American Backflow Prevention Association
Guardian Backflow Testing LLC is a trusted provider of certified backflow testing, prevention, and compliance services throughout Westchester County, New York. With over 35 years of professional experience, we are dedicated to protecting your water supply, ensuring your property stays safe, compliant, and free from possible contamination.
As a proud member of the American Backflow Prevention Association, Guardian Backflow Testing LLC exemplifies the highest industry standards in backflow prevention and water safety. Our membership in this respected national association reflects our commitment to ongoing education, industry best practices, and exceptional quality service for our customers.
Annual backflow testing isn’t just a regulatory requirement in New York—it’s essential for maintaining the safety and health of public drinking water. Backflow prevention devices protect clean water by preventing contaminants from reversing direction and entering your system. Because pressure changes in plumbing can occur unexpectedly, yearly tests by a certified professional help ensure safety and compliance with local and state regulations.
At Guardian Backflow Testing LLC, we make compliance simple with affordable, flat-rate pricing—only $75 per test throughout Westchester County. Our fully certified, licensed, and insured technicians provide fast and accurate testing, documentation, and report submission directly to your local water authority. Whether you own a home, manage a business, or oversee a commercial property, our team delivers dependable service without hidden fees.
We proudly serve communities including Yonkers, White Plains, New Rochelle, Mount Vernon, Larchmont, Mamaroneck, Harrison, Sleepy Hollow, Tarrytown, Ossining, and all surrounding areas. Our guarantee of reliable results, honest pricing, and exceptional customer care has made us a trusted name across Westchester.
By combining our local expertise with the national standards promoted by the American Backflow Prevention Association, Guardian Backflow Testing LLC delivers peace of mind on every project. From annual testing and certification to repairs and emergency service, we are your community’s trusted partner in drinking water safety.
Committed to the highest standards
Official ASSE Member
Guardian Backflow Testing LLC is proud to be a member of ASSE International, one of the plumbing and cross-connection industry’s most respected professional organizations. For more than 100 years, ASSE International has helped protect public health by developing performance standards, professional certifications, and product testing programs used throughout the plumbing and mechanical industries. As an ANSI-accredited standards developer, ASSE brings together engineers, inspectors, manufacturers, contractors, and water authorities to establish guidelines that help ensure plumbing systems and backflow prevention devices operate safely and effectively.
As a professional backflow testing company serving Westchester County, NY, Guardian Backflow Testing LLC is committed to staying connected with the highest industry standards and best practices. Our membership with ASSE International reflects our dedication to protecting clean drinking water, maintaining proper cross-connection control, and providing reliable backflow prevention testing services for homeowners, businesses, and property managers. We perform certified backflow testing, inspections, and compliance reporting to help ensure your backflow prevention assembly is operating correctly and meeting local water authority requirements.
Homeowners and businesses throughout Westchester County, including New Rochelle, Mamaroneck, Rye Brook, Harrison, Dobbs Ferry, and Sleepy Hollow, rely on Guardian Backflow Testing LLC for professional, affordable, and dependable backflow testing services. Our goal is simple: help protect the public water supply while providing fast scheduling, accurate testing, and professional service you can trust.
BSI Online Reporting Systems
Official Approved BSI Testing Company
Guardian Backflow Testing LLC is proud to be an Official Approved Certified Backflow Tester working with the BSI Online reporting system. BSI Online is one of North America’s leading cross-connection control and backflow data management platforms, used by hundreds of municipalities and water authorities to manage backflow prevention programs and maintain compliance records. Guardian Backflow Testing LLC performs certified backflow device testing and submits all required test reports, documentation, and compliance records directly through the BSI Online system. This ensures that results are accurately recorded, instantly reported to the appropriate water authority, and maintained in the official compliance database used by municipalities and water providers. By working within the BSI Online platform, Guardian Backflow Testing LLC helps property owners stay compliant with local regulations while protecting the public drinking water supply from potential contamination.
VEPO BACKFLOW SOLUTIONS
Official Approved VEPO Tester
Guardian Backflow Testing LLC is proud to work with the VEPO Solutions Backflow management platform as an Official Approved Certified Backflow Tester. VEPO Solutions provides advanced cloud-based software systems designed for water utilities to manage cross-connection control and backflow prevention programs. Their CrossConnex platform allows utilities and certified testers to digitally record, track, and archive backflow device test results, maintenance records, and compliance documentation.
Guardian Backflow Testing LLC performs certified backflow device testing and submits all required test reports, documentation, and compliance records through the VEPO system when working within participating municipalities. This digital reporting platform helps ensure that backflow tests are properly recorded, stored, and reported to the appropriate water authority while maintaining accurate compliance records for property owners. By working within the VEPO Solutions system, Guardian Backflow Testing LLC helps protect the public water supply while ensuring customers remain compliant with local and state backflow prevention regulations.
Shaping A Safer Built Environment
Official Member Of The IAPMO
At Guardian Backflow Testing LLC, we are proud to be an official member of the International Association of Plumbing and Mechanical Officials (IAPMO)—a globally respected organization dedicated to protecting public health through the development of plumbing and mechanical codes, product certification, and professional training. IAPMO play
At Guardian Backflow Testing LLC, we are proud to be an official member of the International Association of Plumbing and Mechanical Officials (IAPMO)—a globally respected organization dedicated to protecting public health through the development of plumbing and mechanical codes, product certification, and professional training. IAPMO plays a critical role in ensuring that water systems are safe, reliable, and compliant with the highest industry standards. As a member, Guardian Backflow Testing LLC stays aligned with these strict guidelines, giving our customers confidence that every inspection and test is performed with accuracy, integrity, and up-to-date expertise. We specialize in professional backflow testing, certification, and compliance services, helping homeowners and businesses meet local regulations while safeguarding clean drinking water. Our commitment to quality, reliability, and customer satisfaction reflects the same mission IAPMO stands for—shaping a safer built environment for everyone.