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Chester County Backflow Specialists
Note: NAWSC makes every effort to keep the list of certified testers current, however, there may occasionally be inaccurate information on this site. Individuals that need to obtain the services of a certified tester should ask the tester if his or her certification is still current. Certified testers have the responsibility to keep their phone numbers current by informing this office if there is any change. NAWSC is not responsible for any damages to any party due to inaccurate information contained in this listing.
| Certification Number | Cert. Type | Business Name | Name | Phone | Expiration Date | |
|---|---|---|---|---|---|---|
| 23189 | 5110 - Tester | Peter Gergo | 10/31/2026 | |||
| 27550 | 5110 - Tester | Ryan's Backflow Service | Ryan P. Effat | 484-459-1470 | ryansbackflows@gmail.com | 11/30/2026 |
| 25673 | 5110 - Tester | Mark J. Miller | 3/31/2027 | |||
| 44414 | 5130 - Repairer | PAWSC | Brian Siewell | 570-655-8633 | BackflowServices@pawsc.com | 7/31/2028 |
| 44414 | 5110 - Tester | PAWSC | Brian Siewell | 570-655-8633 | BackflowServices@pawsc.com | 7/31/2028 |
| 43849 | 5130 - Repairer | One Way Backflow | Daniel Meyer | 610-466-5641 | office@onewaybackflow.com | 4/30/2028 |
| 49047 | 5110 - Tester | Ryan A. Papich | 3/31/2027 | |||
| 15445 | 5130 - Repairer | Joseph J. Battavio | 4/30/2026 | |||
| 21478 | 5130 - Repairer | PAWSC | Rocco S. Yanora | 570-655-8633 | BackflowServices@pawsc.com | 10/31/2026 |
| 27142 | 5110 - Tester | Matthew P. Gibbons | 3/31/2027 | |||
| 25436 | 5130 - Repairer | Michael D. Montgomery | 10/31/2025 | |||
| 56330 | 5110 - Tester | ERL Backflow Testing, LLC | Ed Leyden | 610-405-5470 | erlbackflow@yahoo.com | 4/30/2026 |
| 36634 | 5130 - Repairer | Charles J. Tyson | 10/31/2026 | |||
| 36623 | 5110 - Tester | Peter O. Carson | 10/31/2026 | |||
| 17616 | 5130 - Repairer | Richard P. Davis | 610-825-1478 | billdavis.plumb@yahoo.com | 2/28/2026 | |
| 9431 | 5110 - Tester | David J. Gallagher | 10/31/2026 | |||
| 32961 | 5110 - Tester | Blair E. Jury | 11/30/2025 | |||
| 17616 | 5130 - Repairer | Bill Davis PLB | Richard P. Davis | 610-825-1478 | billdavis.plumb@yahoo.com | 2/28/2026 |
| 25436 | 5110 - Tester | Michael D. Montgomery | 10/31/2025 | |||
| 25621 | 5110 - Tester | Keith C. Tinsman | 1/31/2026 | |||
| 9431 | 5130 - Repairer | David J. Gallagher | 10/31/2026 | |||
| 21810 | 5130 - Repairer | Harry R. Hill | 3/31/2027 | |||
| 25605 | 5110 - Tester | Christopher P. Hansell | 1/31/2026 | |||
| 25673 | 5130 - Repairer | Mark J. Miller | 3/31/2027 | |||
| 26176 | 5110 - Tester | Stephen J. Clark | 3/31/2026 | |||
| 21815 | 5130 - Repairer | Gregory E. Ribick | 2/28/2027 | |||
| 25622 | 5110 - Tester | Frederick C. Wendig | 10/31/2025 | |||
| 20221 | 5130 - Repairer | Timothy M. Brooks | 6/30/2026 | |||
| 25622 | 5130 - Repairer | Frederick C. Wendig | 10/31/2025 | |||
| 14627 | 5110 - Tester | Professional Backflow Solutions | Asa C. McCollum | 610-348-0864 | professionaloperation@gmail.com | 8/31/2027 |
| 25668 | 5110 - Tester | James F. Lauf | 1/31/2026 | |||
| 43849 | 5110 - Tester | One Way Backflow | Daniel Meyer | 610-466-5641 | office@onewaybackflow.com | 4/30/2028 |
| 20906 | 5130 - Repairer | Brian S. Welsh | 5/31/2026 | |||
| 36629 | 5110 - Tester | Andrew D. DiEugenio | 12/31/2026 | |||
| 16169 | 5110 - Tester | Nicholas W. D'Antonio | 4/30/2026 | |||
| 32961 | 5130 - Repairer | Blair E. Jury | 11/30/2025 | |||
| 28239 | 5110 - Tester | Matthew T. Green | 2/28/2027 | |||
| 4977 | 5110 - Tester | John McCuen Backflow Services | John McCuen Jr | 610-804-5140 | Service@mccuenbackflow.com | 2/28/2026 |
| 17616 | 5110 - Tester | Richard P. Davis | 610-825-1478 | billdavis.plumb@yahoo.com | 2/28/2026 | |
| 4263 | 5110 - Tester | Anthony M. Cantando | 2/28/2026 | |||
| 26097 | 5110 - Tester | Robert A. Stecher | 3/31/2026 | |||
| 36623 | 5130 - Repairer | Peter O. Carson | 10/31/2026 | |||
| 36634 | 5110 - Tester | Charles J. Tyson | 10/31/2026 | |||
| 46784 | 5110 - Tester | Jason Rolfe | 10/31/2026 | |||
| 15441 | 5110 - Tester | Thomas J. Gallagher | 2/28/2026 | |||
| 15444 | 5130 - Repairer | Dominic J. Marchesani | 4/30/2026 | |||
| 16169 | 5130 - Repairer | Nicholas W. D'Antonio | 4/30/2026 | |||
| 15441 | 5130 - Repairer | Thomas J. Gallagher | 2/28/2026 | |||
| 21815 | 5110 - Tester | Gregory E. Ribick | 2/28/2027 | |||
| 25625 | 5130 - Repairer | Joseph N. Henderson | 2/28/2026 | |||
| 20221 | 5110 - Tester | Timothy M. Brooks | 6/30/2026 | |||
| 27987 | 5110 - Tester | Mark Joseph | 2/28/2027 | |||
| 16239 | 5110 - Tester | Ron G. Bartos | 6/30/2026 | |||
| 4263 | 5130 - Repairer | Anthony M. Cantando | 2/28/2026 | |||
| 34231 | 5110 - Tester | Brett M. Levinson | 2/28/2026 | |||
| 20229 | 5110 - Tester | Michael P. Kane | 3/31/2026 | |||
| 15445 | 5110 - Tester | Joseph J. Battavio | 4/30/2026 | |||
| 47453 | 5110 - Tester | Mansel Backflow Services | Miles Ansel | 717-721-0277 | manselbackflow@gmail.com | 1/31/2027 |
| 21478 | 5110 - Tester | PAWSC | Rocco S. Yanora | 570-655-8633 | BackflowServices@pawsc.com | 10/31/2026 |
| 15444 | 5110 - Tester | Dominic J. Marchesani | 4/30/2026 | |||
| 16239 | 5130 - Repairer | Ron G. Bartos | 6/30/2026 | |||
| 27671 | 5110 - Tester | Shaun T. Epps | 12/31/2026 | |||
| 34929 | 5110 - Tester | Christopher A. Simpson | 2/28/2026 | |||
| 20035 | 5110 - Tester | Mark A. Nichols | 3/31/2026 | |||
| 21810 | 5110 - Tester | Harry R. Hill | 3/31/2027 | |||
| 27987 | 5130 - Repairer | Mark Joseph | 2/28/2027 | |||
| 17616 | 5110 - Tester | Bill Davis PLB | Richard P. Davis | 610-825-1478 | billdavis.plumb@yahoo.com | 2/28/2026 |
| 27550 | 5130 - Repairer | Ryan's Backflow Service | Ryan P. Effat | 484-459-1470 | ryansbackflows@gmail.com | 11/30/2026 |
| 21894 | 5110 - Tester | Sean F. Crossan | 3/31/2026 | |||
| 25625 | 5110 - Tester | Joseph N. Henderson | 2/28/2026 | |||
| 4977 | 5130 - Repairer | John McCuen Backflow Services | John McCuen Jr | 610-804-5140 | Service@mccuenbackflow.com | 2/28/2026 |
| 44389 | 5110 - Tester | Frank P. Scarpato | 11/30/2025 | |||
| 20218 | 5110 - Tester | Michael S. Gatlos | 2/28/2026 | |||
| 20218 | 5130 - Repairer | Michael S. Gatlos | 2/28/2026 | |||
| 26341 | 5110 - Tester | Paul L. Failor | 4/30/2026 | |||
| 44904 | 5110 - Tester | William P. Davis | 610-825-1478 | billdavis.plumb@yahoo.com | 1/31/2026 | |
| 14627 | 5130 - Repairer | Professional Backflow Solutions | Asa C. McCollum | 610-348-0864 | professionaloperation@gmail.com | 8/31/2027 |
| 20906 | 5110 - Tester | Brian S. Welsh | 5/31/2026 | |||
| 23189 | 5130 - Repairer | Peter Gergo | 10/31/2026 | |||
| 21894 | 5130 - Repairer | Sean F. Crossan | 3/31/2026 |