Septic Installations Done Right — Since 1969
John's Septic Service has been installing septic systems across Harford County, Cecil County, and Baltimore County since 1969. Whether you need a full replacement or an upgrade to a failing system, our 4th-generation family crew handles the entire job — honest pricing, no surprises, and the kind of work that earns repeat customers for 56 years.
A septic system is more than just a tank. It includes the tank (or holding tank) and the drain field — a network of perforated pipes buried in a leach field that slowly releases treated wastewater into the soil. Getting the design right from the start protects your property and keeps you compliant with Maryland regulations.
Is Your Septic System Failing? Call Before It Gets Worse.
A cracked tank or an overloaded system doesn't fix itself — and the longer you wait, the costlier the repair. Call us at 410-272-2317 if you're seeing any of these warning signs:
- Wastewater or sewage backs up through household drains
- Standing water in the drain field area even in dry weather
- Bright green, spongy grass in the drain field area
- A strong odor of septic in the house or near the septic tank or drain field
Everything Covered — From Perc Test to Final Inspection
A full installation from John's Septic covers every step, so you deal with one licensed contractor from start to finish — not a rotating cast of subcontractors:
- A perc test (also known as a perk test or percolation test)
- Septic system design
- Installation of conventional septic systems
- Septic tank or holding tank installation
- Installation of Best Available Technology (BAT) systems
Ready to get started? Request a free quote online or call us now at 410-272-2317 or 410-272-2319. We serve Harford, Cecil, and eastern Baltimore Counties — and emergency service is always available.
510 S. Stepney Road · Aberdeen, MD 21001 · Emergency Service Available
Four generations. 56 years. Still the same family picking up the phone. Call 410-272-2317 or 410-272-2319 to schedule your installation — or get a quote online in minutes.
Emergency service available. Serving Harford, Cecil & Baltimore Counties.