Licensed onsite sewage system installers in Fairfax County, Virginia
9 people on Virginia’s roster of licensed onsite sewage system installers give Fairfax County as their address. A licensed installer is someone who is licensed to install onsite sewage systems.
| Name | Licence | City | Expires |
|---|---|---|---|
| Boris A Marenco Montoya | Master Alternative Onsite Sewage System InstallerNo. 002944 | Alexandria | July 31, 2028 |
| Eric M Hoppis | Master Alternative Onsite Soil Evaluator · Master Alternative Onsite Sewage System Operator · Master Conventional Onsite Sewage System InstallerNo. 001428 | Falls Church | June 30, 2027 |
| Farzad Farzayee | Master Alternative Onsite Sewage System InstallerNo. 002970 | Fairfax | July 31, 2028 |
| Katherine M Williamson | Master Alternative Onsite Soil Evaluator · Master Alternative Onsite Sewage System Operator · Master Alternative Onsite Sewage System InstallerNo. 001286 | Lorton | November 30, 2027 |
| Lester V Dove JR | Master Alternative Onsite Sewage System InstallerNo. 001552 | Alexandria | December 31, 2026 |
| Roy M Hunter II | Master Alternative Onsite Sewage System InstallerNo. 002400 | Fairfax | April 30, 2028 |
| Whitney W Wright | Master Alternative Onsite Soil Evaluator · Master Conventional Onsite Sewage System Operator · Master Conventional Onsite Sewage System InstallerNo. 001133 | Reston | June 30, 2027 |
| William F Sledjeski JR | Master Alternative Onsite Soil Evaluator · Master Conventional Onsite Sewage System Operator · Master Alternative Onsite Sewage System InstallerNo. 001012 | Centreville | December 31, 2026 |
| Yousef Farzayee | Master Alternative Onsite Sewage System InstallerNo. 002969 | Fairfax | July 31, 2028 |
What “Licensed onsite sewage system installer” means in Virginia
Being on this roster means Virginia DPOR has licensed this person for is personally licensed to install onsite sewage systems. It is not a rating, a review, or a statement about price, insurance or workmanship.
Contractor licences carry an expiration date, shown on every listing. DPOR republishes the regulant lists roughly every five business days.
Before you hire, confirm the licence with DPOR's own License Lookup. How to verify →
Licensed onsite sewage system installers in neighbouring counties
Records as published August 26, 2026. Report a correction.