PinegenomeCall (207) 512-8411

Septic Tank Installation in Bangor, ME

Fixed-Price Septic Installation for Bangor Homes

New systems, tank replacements, and drainfields for Bangor and Penobscot County, priced in writing before we dig. Conventional and aerobic systems sized to your soil and bedroom count.

Call (207) 512-8411Get Your Fixed-Price Quote
  • Written fixed-price quotes
  • Perc test to backfill
  • Licensed and insured
Septic tank installation in Bangor, ME

Septic Cost Notes

Straight talk on what septic work runs around Bangor, from tank sizing to drainfield budgets.

Septic system cost planning for a Bangor home

What a Septic System Really Costs in Bangor

July 1, 2026

Septic pricing feels like a black box, and that is usually on purpose. Most homeowners in Bangor never get a clear breakdown, just a single scary number at the end. Here is the honest version of what the work costs and what moves the price, so you can budget before you ever pick up the phone.

Start With the Perc Test

Before anyone can quote a real system, your soil has to be tested. A perc test measures how fast water drains and confirms your seasonal high water table, and it sets the drainfield size the Penobscot County health department will permit. Expect roughly $750 to $1,900 for the test on most lots. It is the cheapest and most important step, because it decides everything downstream. Skipping it means quoting blind.

The Tank Is the Small Part

People fixate on the tank, but it is rarely the big cost. A new 1,000 to 1,500 gallon tank, set watertight, usually runs $3,500 to $8,500 for a replacement, and most 1,250 gallon jobs land near $3,000 to $5,000. Concrete is the common choice around Bangor, with polyethylene and fiberglass as lighter options for tight access. Size follows bedroom count, so a three bedroom home takes about 1,000 gallons and a four bedroom takes 1,500.

The Drainfield Drives the Bill

If one line item makes your total jump, it is the drainfield. A conventional trench or chamber field runs $5,000 to $15,000, and an engineered mound for poor soil can push past $20,000. This is exactly why the perc rate matters so much. A fast draining lot near Stillwater Avenue takes a compact field, while a tight clay or high water table lot toward Glenburn needs far more. Our drainfield installation page walks through the trench and chamber options.

Conventional Versus Aerobic

Soil decides your system type, and the type decides the price. A lot that drains well takes a simple gravity system inside that $3,500 to $12,500 conventional range. A small lot or a high water table often needs an aerobic treatment unit, which runs $10,000 to $20,000 because of the aerator, the controls, and the maintenance it requires. Neither is a rip off. They just fit different ground.

Get It in Writing

The single best thing you can do is insist on a fixed-price quote that itemizes the tank, drainfield, permit, and labor as separate lines. A vague ballpark helps no one, and a written number keeps everyone honest. When you are ready to plan a real system for your property, contact us and we will start with the perc test.

Budgeting a septic system for your Bangor home? Call Pinegenome at (207) 512-8411 for a perc test and a fixed-price quote.

Read the full article

Pinegenome provides septic tank installation in Bangor, ME, and we lead with the number that actually matters to you, the price. We handle new septic system installation, septic tank replacement, drainfield and leach field construction, aerobic treatment unit installation, perc testing and site evaluation, distribution box repair, and routine septic pumping. From the first soil test off Stillwater Avenue to the final backfill in the Tree Streets, every job runs on one 04401 crew and one written estimate.

Septic pricing scares homeowners because most contractors hide it. We do the opposite. Before any excavator touches your yard, you get a fixed-price quote that lists the tank, the distribution box, the drainfield stone, the pipe, the permit, and the labor as separate lines. A full conventional system for a three or four bedroom home in Bangor generally lands between $3,500 and $12,500, and the spread comes down to your soil, your perc rate, and how much drainfield the county requires. We show you where your lot sits in that range and why.

Bangor sits on a mix of soils, from the sandy pockets near the Penobscot River to the tighter clay and shallow bedrock you find out toward Glenburn and Hermon. That soil decides your system. A lot that drains fast may take a simple gravity drainfield, while a high water table near Veazie or a small lot in the Broadway Historic District often calls for an aerobic treatment unit certified to NSF/ANSI Standard 40. We run the perc test first, then quote the system your ground can actually pass, not the one that pads the invoice.

We work across Bangor and the surrounding Penobscot County towns, including Brewer, Hampden, Orono, Old Town, and Orrington. A new septic system is a five figure decision on many properties, and it is the kind of buried work you only want to pay for once. So we template the layout to real setbacks, keep the tank at least fifty feet from any private well, seal every joint watertight, and hand you the as built record the health department and your future buyer will both ask for. Call (207) 512-8411 and we will start with the price.

  1. Price first, alwaysYour fixed-price quote itemizes the tank, drainfield, permit, and labor before we dig. No surprises after backfill.
  2. Soil decides the systemWe perc test your lot near Bangor first, then quote conventional or aerobic based on what your ground passes.
  3. Permit to as builtWe pull the Penobscot County permit and leave you the as built record buyers and lenders require.
  4. Licensed and insuredA licensed, insured Bangor crew installs your system, and a real person answers at (207) 512-8411.

Price Ranges by System Type and Tank Size

Septic cost tracks the system type and tank size more than anything else. Here is what each service covers and what drives its price around Bangor.

  • New Septic System Installation

    Full design and install of the tank, distribution box, and drainfield, sized from your bedroom count. A three bedroom home usually takes a 1,000 to 1,250 gallon tank, a four bedroom often 1,500.

  • Septic Tank Replacement

    We remove a cracked or failed tank and set a new watertight concrete, polyethylene, or fiberglass unit. Most 1,250 gallon replacements in Bangor run near $3,000 to $5,000 installed.

  • Drainfield and Leach Field Installation

    Gravel trench or plastic chamber fields sized from your perc rate so effluent disperses without surfacing. The single biggest cost variable on most Penobscot County lots.

  • Aerobic Treatment Unit (ATU)

    An oxygen fed unit certified to NSF/ANSI Standard 40, the right call for small lots or the poor soils and high water tables common toward Glenburn and Veazie.

  • Perc Test and Site Evaluation

    Soil percolation testing that confirms your seasonal water table and sets the drainfield size the county will permit. This test comes before any firm system quote.

  • Pumping, Inspection, and D-Box Repair

    Routine pump outs every 3 to 5 years, point of sale inspections for a Bangor home sale, and distribution box repair to restore even flow across drainfield laterals.

Towns and Zip Codes We Cover Around Penobscot County

We install and service septic systems across Bangor and the surrounding Penobscot County towns, from the city neighborhoods to the rural lots where a private well and drainfield share the same acre.

  • Bangor, ME (04401)
  • Brewer, ME
  • Hampden, ME
  • Hermon, ME
  • Orono, ME
  • Old Town, ME
  • Veazie, ME
  • Glenburn, ME
  • Orrington, ME
  • Holden, ME

Not sure if your lot is in our range? Call (207) 512-8411 and we will confirm and book your perc test.

What a Septic System Really Costs in the Bangor Area

These are the real installed ranges we quote around Bangor. Your soil, perc rate, and drainfield size set where your lot lands, and we put the firm number in writing after the site evaluation. The middle tier is where most whole system jobs settle.

Tank replacement only$3,500 to $8,500 installed
  • New 1,000 to 1,500 gallon tank
  • Watertight concrete or poly
Get quote
Full conventional system$3,500 to $12,500 installed
  • Tank plus gravity drainfield
  • Sized by bedroom and perc rate
Get quote
Aerobic or mound system$10,000 to $20,000 installed
  • For poor soil or high water table
  • NSF/ANSI Standard 40 unit
Get quote

Septic Installation Questions Bangor Owners Ask

How much does a new septic system cost in Bangor?
A full conventional system for a three or four bedroom home generally runs $3,500 to $12,500 installed. Your soil, perc rate, and drainfield size set the number, which we put in writing after the site evaluation. Aerobic and mound systems for poor soils run higher, often $10,000 to $20,000.
What size septic tank do I need?
Tank size follows bedroom count, not square footage. A three bedroom home in Bangor typically calls for a 1,000 to 1,250 gallon tank, and a four bedroom home for a 1,500 gallon tank. We confirm the size against your household before we quote.
What is a perc test and do I need one first?
A percolation test measures how fast water drains through your soil and confirms the seasonal high water table. It sets the drainfield size the Penobscot County health department will permit. Yes, it comes before any firm system quote, and it runs about $750 to $1,900 on most lots.
Do I need a conventional or an aerobic system?
Your soil decides. A lot that drains well can take a conventional gravity drainfield. A small lot, a high water table near Veazie, or shallow bedrock toward Glenburn often needs an aerobic treatment unit or a mound system to meet the four foot separation to groundwater.
Concrete, polyethylene, or fiberglass tank?
Concrete is the heaviest and most common around Bangor and holds up well when set correctly. Polyethylene and fiberglass are lighter and rustproof, and they suit tight access or high water table lots. We help you weigh cost, access, and soil for your property.
How far does the tank have to be from my well?
State rules set at least fifty feet between a septic tank and a private well, and one hundred feet between the drainfield and the well. On a rural Orrington or Holden lot, that setback often shapes where the whole system goes, which we lay out during the site evaluation.
How long does a full install take?
Once the permit is in hand, most conventional installs run one to three days of on site work from excavation to backfill. Perc testing and county permit approval happen first, so plan a few weeks from your call at (207) 512-8411 to a finished system.

Get Your Fixed-Price Septic Quote

Ready for a real number? We start with a perc test and site evaluation, confirm whether your Bangor lot takes a conventional or aerobic system, then put a fixed-price quote in writing that itemizes the tank, drainfield, permit, and labor. No pressure, no vague ballparks, just the price and the plan for your property in the 04401 area.

Call (207) 512-8411