Envy Excavation
About Us
About Us
Map of Maine — Envy Excavation service area
Areas We Serve
Careers →
Driveway construction in Southern Maine
Driveways
Septic Systems
Septic
Foundation Excavation
Foundations
Homeowner
Driveways Septic Systems Grading & Drainage Walls Granite Steps Lawn Prep
Builder & Site Work
Foundation Excavation Site Preparation & Clearing Demolition Land Development Utility Trenching
Utility & Municipal
Site Utilities
View All Services
Projects
Projects
Gallery
Gallery
Big Legion Field Moonlit Ridge Estate Moosehead Camp
Contact Us
Septic System Installation in Portland, Maine
Service Area

Septic System Installation in Portland, Maine

Most of Portland is on city sewer, but the moment you cross into Stroudwater, Riverton, North Deering, and the outer Cape Cottage corridor, you're back on private septic, often on systems that were installed in the 1970s and have been quietly running on borrowed time. Envy Excavation designs, installs, and replaces septic systems across Portland's outlying neighborhoods, with the engineering rigor and inspection-ready discipline you'd expect from a contractor whose day job is excavating $1.5M+ custom homes.

Engineered for Portland Lots, Permitted for Portland Code

A Portland septic project is rarely a simple drop-in. Lots are smaller than Cumberland or Yarmouth, water tables run high near Back Cove and the Fore River, and the older neighborhoods often have buried oil tanks, abandoned wells, and original site features that complicate the dig. We bring a soils engineer and licensed site evaluator into the project early, document the perc test results properly, and design a system that fits the lot: conventional gravity where it works, pressurized or mound where it doesn't.

What's Included in a Portland Septic Installation

  • •Site evaluation and perc (percolation) test by a licensed Maine site evaluator
  • •System design matched to soil conditions, water table, and household size: conventional, pressure-dosed, mound, or engineered
  • •Town and state permitting through Portland's planning office and Maine DEP where required
  • •Tank installation: concrete tanks, properly bedded, with risers brought to grade for future pumping access
  • •Leach field or chamber system construction with frost-protected trenches and proper aggregate
  • •Final grading, backfill, and inspection coordination: system is left inspection-ready, not "ready enough"

Why Portland Septic Work Demands Local Knowledge

Portland's older neighborhoods present problems that newer suburban towns don't. Riverton and North Deering homes built in the 1960s and 70s often have undersized cesspools or single-tank systems that don't meet current Maine subsurface wastewater rules. Replacement isn't optional once a system fails inspection at sale. It's a closing-table emergency. Stroudwater lots back up to wetland buffers that limit where leach fields can be sited, and the Stroudwater River corridor adds shoreland zoning to the mix. Around Back Cove and the Fore River, water tables sit close to the surface; conventional systems often won't perc, and the design has to step up to a mound or engineered alternative.

We also know which Portland inspectors flag risers below grade, which want as-built drawings on the day of cover, and how to sequence a tank set so the homeowner isn't on a Port-a-John for two weeks.

Our Process: Portland Septic System Installation

  1. 1.Initial site review. We walk the property, identify obvious constraints (wells, wetlands, setbacks), and confirm whether you're on septic or city sewer.
  2. 2.Site evaluation and perc test. A licensed Maine site evaluator runs the perc and writes the soils report, required for the state permit application.
  3. 3.System design and permits. We design the system to spec, submit to Maine DEP / Portland for approval, and walk the design through any inspector questions.
  4. 4.Excavation and install. Tank, lines, distribution box, and leach field installed to design. Frost-protected, properly bedded, properly compacted.
  5. 5.Inspection, backfill, and as-built. Inspector signs off, we backfill to grade, and you receive the as-built drawing for your records.
Track Record

Backed by Envy Construction's 18-Year Track Record

Eric Storey, VP of Excavation, has installed and replaced more septic systems across Southern Maine than most contractors see in a decade. The same crew that handles foundations on Envy Construction's custom homes is the crew that lays out your leach field. Single-source accountability, no finger-pointing between sub and GC.

Other Services Here

Other Excavation Services in Portland

Driveway Paving in Portland

Drainage & French Drains in Portland

Stone Walls in Portland
Related

More on This Service

See the full Septic Systems Service Overview page or visit the Portland excavation hub.

For pricing details across Southern Maine, see the Maine Septic Systems Cost Guide.

Get a Free Quote

Septic Systems in
Portland, Maine

Call 207-232-0351 or request a free quote online. We respond same-day during the construction season. Written line-item quotes, no verbal estimates.

Get a Free Quote