Complete Backflow, LLC
📍 Phoenix, AZ (4202 E Elwood St, Suite 21)
Reported Credential: ASSE Standard 5110 Certified Backflow Prevention Assembly Tester Reported Credential: Arizona ROC Commercial Plumbing License #ROC281691 Reported Credential: ABPA Certified Backflow Prevention Assembly Tester Commercial Cross-Connection Control Annual Backflow Assembly Certification RPZ & Double Check Valve Rebuilds Mid-West Instrument Model 845-5 Differential Pressure Test Kit Calibrated 5-Valve Backflow Test Gauges Mobile Repair Inventory for Febco, Wilkins, and Watts
Verified Source: Arizona Registrar of Contractors and corporate compliance records
Backflows Northwest, Inc.
📍 Bellevue, WA (12819 SE 38th St #112)
Reported Credential: Washington State Department of Health Certified Backflow Assembly Tester (BAT) Reported Credential: ASSE 5110 Backflow Tester Certification Reported Credential: Washington State Contractor License #BACKFNI001DB Commercial Backflow Assembly Inspection & Testing Fireline Double Check Detector Assembly (DCDA) Testing Reduced Pressure Principle Assembly (RPBA) Maintenance Barton Model 226/247 Differential Pressure Units Calibrated Apollo/Conbraco Diagnostic Gauges Dedicated High-Volume Field Service Vehicles
Verified Source: Washington State Department of Labor & Industries Contractor Verification
ABC Testing, Inc.
📍 San Rafael, CA (761 Francisco Blvd W, Ste C)
Reported Credential: AWWA California-Nevada Section Certified Backflow Tester Reported Credential: ABPA Certified Backflow Assembly Tester & Specialist Reported Credential: California C-36 Plumbing Contractor License #741544 Commercial & Industrial Backflow Testing Hospital & Medical Facility Cross-Connection Surveys Large-Diameter Fire Service Double Check Assemblies Mid-West Instrument Model 830 Differential Pressure Gauges NIST-Traceable Calibrated Test Manifolds OEM Seat and O-Ring Reseating Tools
Verified Source: California State Contractors License Board (CSLB)
Merry Plumbing Co.
📍 San Marino, CA (1465 San Marino Ave)
Reported Credential: Los Angeles County Certified Backflow Prevention Device Tester Reported Credential: California C-36 Plumbing License #159381 Reported Credential: AWWA Certified Backflow Prevention Assembly Inspector Commercial Property Backflow Certification Reduced Pressure Zone (RPZ) Device Repair Los Angeles County Department of Public Health Compliance Apollo/Conbraco Calibrated 3-Valve Test Kit High-Pressure Differential Manometer Pipe Threading and Machining Tooling up to 4-Inch
Verified Source: California CSLB Registry & Los Angeles County Cross-Connection Program
Denver Backflow Specialists Corp.
📍 Denver, CO (2129 S Fox St)
Reported Credential: ABPA Backflow Prevention Assembly Tester & Repairer Reported Credential: ASSE Standard 5110 Certified Tester Reported Credential: Colorado Department of Public Health & Environment (CDPHE) Certified Annual Commercial Backflow Testing & Certification Denver Water Cross Connection Compliance Documentation Large-Diameter Commercial RPZ Rebuilding Mid-West Model 845 Differential Pressure Gauges Mobile Parts Units stocked for Watts, Ames, Febco, and Wilkins Hydraulic Line Pressure Calibrators
Verified Source: Denver Water Certified Backflow Assembly Tester Registry
Next Day Backflow Testing
📍 Allen, TX (101 W McDermott Dr)
Reported Credential: Texas Commission on Environmental Quality (TCEQ) Licensed BPAT #BP0014974 Reported Credential: State of Texas Fireline Backflow Certification Reported Credential: ASSE 5110 Certified Tester Commercial Facility Backflow Testing & Electronic Filing Dedicated Fireline Backflow Assembly Testing & Repair TCEQ Cross-Connection Compliance Audits Mid-West 845-5 Calibrated Backflow Test Kit Electronic Testing Transducers and Gauge Certifications Complete Internal Valve Component Replacement Packs
Verified Source: Texas Commission on Environmental Quality (TCEQ) Licensing Database
Charlotte Backflow Inc.
📍 Mount Pleasant, NC (6370 Crayton Rd)
Reported Credential: North Carolina Licensed Commercial Plumbing Contractor #P17218 Reported Credential: City of Charlotte Certified Backflow Tester #0223-CM9-252 Reported Credential: South Carolina DHEC Certified Backflow Tester #195916023 Commercial & Industrial Assembly Installation & Certification Turnkey Testing on 3/4-inch to 10-inch Devices Charlotte Water Cross-Connection Compliance Submissions Watts and Apollo 5-Valve Calibrated Testing Kits Heavy Commercial Valve Pulling & Reseating Tools Flange Gasket & Disc Replacement Tooling
Verified Source: North Carolina State Board of Examiners of Plumbing and Charlotte Water Registry
St. Louis Backflow Services LLC
📍 Saint Louis, MO (2827 Breckenridge Industrial Ct)
Reported Credential: Missouri Department of Natural Resources (MDNR) Certified Backflow Tester Reported Credential: St. Louis County Licensed Master Plumber Reported Credential: ASSE 5110 Certified Backflow Prevention Assembly Tester Commercial Domestic & Fire Line Backflow Testing Missouri Department of Natural Resources Compliance Reports RPZ Overhaul and Check Valve Re-seating Mid-West Instrument 845 Differential Pressure Manometers NIST-Certified Test Kit Calibration Stations Specialty Seat Wrenches and Spanner Tools
Verified Source: Missouri Department of Natural Resources Public Drinking Water Program
Pittsburgh Backflow Testing LLC
📍 Bethel Park, PA (5225 Library Rd, Suite 146)
Reported Credential: ASSE Standard 5110 Certified Backflow Prevention Assembly Tester Reported Credential: Allegheny County Health Department Licensed Specialty Plumber Reported Credential: PA Home Improvement / Commercial Contractor Registration Dedicated Full-Time Commercial Backflow Inspection Allegheny County Health Department Cross-Connection Verification Pennsylvania American Water Testing & Documentation Calibrated 5-Valve Backflow Test Manifolds Differential Pressure Measurement Gauges Commercial Valve Flushing and Repair Rig
Verified Source: Allegheny County Health Department (ACHD) Plumbing Program
Backflow Testing Services LLC
📍 Clark, NJ (26 Charles St)
Reported Credential: New England Water Works Association (NEWWA) Certified Tester (#0009105 / #0015139) Reported Credential: New Jersey Home Improvement Contractor Lic #13VH12718100 Reported Credential: Partnered NJ Master Plumber Verification Network Commercial High-Hazard Backflow Device Inspections New Jersey DEP Cross-Connection Control Submissions Industrial Plant Assembly Testing & Relocation New England Water Works Standard Test Gauges Mid-West Differential Pressure Gauges (Annually Certified) Hydraulic Relief Valve Testing Instruments
Verified Source: New Jersey Division of Consumer Affairs & NEWWA Registry
Durance Plumbing
📍 Takoma Park, MD (7304 Carroll Ave #149)
Reported Credential: Washington Suburban Sanitary Commission (WSSC) Certified Backflow Tester Reported Credential: Maryland State Master Plumber License Reported Credential: ASSE 5110 Certified Backflow Tester Commercial Cross-Connection Testing & Certification WSSC Water Certified Backflow Prevention Inspection Reduced Pressure Zone Assembly Maintenance Certified Differential Pressure Test Gauges Calibrated Bleed and Needle Valve Manifolds Commercial Line Hydrostatic Test Equipment
Verified Source: Washington Suburban Sanitary Commission (WSSC Water) Regulatory Registry
Backflow Prevention Services Inc.
📍 Las Vegas, NV (9506 Teton Diablo Ave)
Reported Credential: AWWA Certified Backflow General Tester Reported Credential: Nevada State Contractors Board License Reported Credential: Cross Connection Control Survey Specialist Certification Commercial & Industrial Assembly Certification Southern Nevada Water Authority (SNWA) Portal Filing Clark County Health Department Compliance Inspections Calibrated Mid-West Instrument Model 845 Gauge Units Precision Water Pressure Differential Sensors Comprehensive Watts, Wilkins, and Febco Replacement Seat Kits
Verified Source: Nevada State Contractors Board and Southern Nevada Water Authority Records
Chicago Backflow, Inc.
📍 Alsip, IL (12607 S Laramie Ave)
Reported Credential: Illinois EPA Certified Cross Connection Control Device Inspector (CCCDI) Reported Credential: City of Chicago Licensed Plumbing Contractor Reported Credential: ASSE 5110 Certified Tester Commercial and Municipal Backflow Device Testing Illinois EPA Cross-Connection Control Filing Dedicated Fire Protection Backflow Certification NIST-Traceable Calibrated Differential Pressure Gauges Complete Backflow Test Rigs for High-Volume Inspections Mobile Machining and Hydrostatic Testing Gear
Verified Source: Illinois Environmental Protection Agency (IEPA) CCCDI Verification
Georgia Backflow Testing
📍 Buford, GA (239 E Moreno St)
Reported Credential: Georgia Association of Water Professionals (GAWP) Backflow Tester Certification Reported Credential: ASSE Standard 5110 Certified Backflow Prevention Assembly Tester Reported Credential: State of Georgia Master Plumber License Commercial Facility Backflow Testing & Repairs Municipal Water Provider Portal Submissions (Atlanta, Gwinnett, Fulton) RPZ and Double Check Assembly Certifications Mid-West 845 Calibrated Test Kit Field Calibrated High-Pressure Test Hoses & Adapters Comprehensive Spare Rubber Replacement Inventory
Verified Source: Georgia Association of Water Professionals (GAWP) Registry
Absolute Best Plumbing
📍 Orlando, FL (1026 28th St)
Reported Credential: Florida Certified Plumbing Contractor License #CFC1428659 Reported Credential: University of Florida TREEO Certified Backflow Prevention Tester Reported Credential: ASSE 5110 Backflow Assembly Tester Commercial Water System Cross-Connection Inspections Orlando Utilities Commission (OUC) Backflow Compliance Large Commercial RPZ Device Repair & Re-certification Calibrated 5-Valve Differential Pressure Manometer Kits Electronic Pressure Transducers Heavy-Duty Valve Extractors and Seat Re-facing Hardware
Verified Source: Florida Department of Business and Professional Regulation (DBPR)
Columbus Backflow Testing Company & Fire
📍 Columbus, OH (1491 Polaris Pkwy, Ste 177)
Reported Credential: Ohio Department of Commerce Certified Backflow Tester Reported Credential: State of Ohio Fire Marshal Fire Protection Certification Reported Credential: ASSE Standard 5110 Backflow Tester Commercial Facility Backflow Compliance Dedicated Fireline Backflow Assembly Testing City of Columbus Division of Water Annual Submissions Calibrated Mid-West Instrument Model 830/845 Test Sets Digital Hydrostatic Line Pressure Testing Kits Full Replacement Inventory for Ames, Watts, and Wilkins
Verified Source: Ohio Department of Commerce Division of Industrial Compliance
American Backflow & Plumbing Services, Inc.
📍 Portland, OR (5623 SE Center St)
Reported Credential: Oregon Health Authority (OHA) Certified Backflow Assembly Tester Reported Credential: Oregon CCB Commercial Specialty License #153678 Reported Credential: ASSE 5110 Certified Backflow Assembly Tester Commercial Backflow Testing and Certification Oregon Health Authority Drinking Water Services Compliance Backflow Enclosure Security and Freeze Protection Calibrated Differential Backflow Test Kits (Annual Factory Certification) Portable Pipe Threading & Hydrostatic Pressure Rigs Dedicated Mobile Service Vans with Complete Repair Tooling
Verified Source: Oregon Construction Contractors Board (CCB) and Oregon Health Authority
A1 Back Flow Testing
📍 Salt Lake City, UT (3595 S 700 W #5)
Reported Credential: Utah Division of Drinking Water Certified Backflow Assembly Tester Reported Credential: Utah DOPL Commercial Plumbing Contractor License Reported Credential: ABPA Certified Tester Commercial Water Safety Cross-Connection Inspections Utah Division of Drinking Water Annual Certification Filing RPZ & Double Check Valve Rebuilds and Overhauls Certified 5-Valve Backflow Test Gauges NIST-Traceable Calibrated Test Sets Specialty Valve Body Wrench Sets and Diagnostic Tools
Verified Source: Utah Department of Environmental Quality Division of Drinking Water Registry
Mark Miller Backflow
📍 Indianapolis, IN (249 Byrkit St)
Reported Credential: Indiana Professional Licensing Agency (IPLA) Certified Backflow Tester Reported Credential: State of Indiana Licensed and Bonded Contractor Reported Credential: American Backflow Prevention Association (ABPA) Member Commercial Water Customer Backflow Testing & Repairs Citizens Energy Group Backflow Report Submission Reduced Pressure Zone (RPZ) Device Maintenance Calibrated Differential Pressure Gauge Manifolds High-Pressure Flexible Testing Hoses & Adapters Complete Internal Valve Seal Kits for Conbraco, Febco, Watts
Verified Source: Indiana Department of Environmental Management & IPLA Licensing
AMG Plumbing, Inc.
📍 Nashville, TN (2603 Fessey Park Rd)
Reported Credential: Tennessee Department of Environment and Conservation (TDEC) Certified Backflow Tester Reported Credential: Tennessee State Licensed Contractor (CMC-A) Reported Credential: ASSE Standard 5110 Certified Tester Commercial Backflow Testing & Metro Water Services Submission Commercial RPZ and Double Check Valve Replacement Cross-Connection Hazard Assessments Mid-West Instrument 845 Differential Pressure Gauge Sets Calibrated Test Kits with Annual Calibration Certificates Heavy Commercial Pipe Threading and Press Tools
Verified Source: Tennessee Board for Licensing Contractors & Metro Water Services Tester List