About Theilluum

A Local Septic Installation Crew for Bangor Homes

Theilluum installs and replaces septic systems for homeowners across Bangor, Maine and the surrounding Penobscot County towns. We handle the whole onsite wastewater treatment system, from the perc test and soil evaluation to the tank set, the drainfield build, the inspection, and the final backfill. Whether you are putting a system on a raw lot near Stillwater Avenue or replacing a cracked tank behind an older house in the Tree Streets, we run the job stage by stage so nothing gets skipped.

Bangor soils vary a lot from one parcel to the next, which is why we never design from a template. We test the ground first, confirm the seasonal water table, and then choose a conventional, chamber, aerobic, or mound system that your site will actually pass. That order matters, and it keeps you from paying for a field that will not drain.

What Sets Us Apart

• We start with the soil. Every project opens with a perc test, because the drainfield size and the system type follow from what the ground will drain.
• Permits and inspections handled. We pull the county health department permit, hold every well and property setback, and keep the as built record for you.
• Right system for the ground. Conventional gravity, chamber field, aerobic treatment unit, or engineered mound, matched to your perc rate and water table.
• Clean, graded finish. We backfill, grade, and seed the disturbed area so your yard recovers and the riser lids sit at a serviceable height.

Get in Touch

Ready to plan a septic install? Call (207) 739-6388 or reach us at 5691 Mount Hope Avenue, Bangor, ME 04401 for a site visit and a written estimate.