Residential
Septic System Installation, Repair, and Replacement Across Maine
Whether you’re installing a system on a new build, dealing with a failure, or facing a 90-day replacement deadline after a property transfer inspection — Scully Construction handles it. We install conventional and mound septic systems maine, and we work alongside licensed Site Evaluators to manage the full process from permit to final inspection.
- New septic installations for new construction, lot development, and camp-to-home conversions
- Emergency repair and full system replacement when an existing system fails or doesn't pass inspection
- Experienced with mound systems, shoreland-zone requirements, and Maine DEP compliance
Maine’s rocky, shallow soils mean mound systems are common across this region — especially on waterfront and rural lots where setback and soil requirements add complexity. We’ve installed systems on all kinds of terrain and know how to keep the process moving without surprises.
Frequently Asked Questions
What's the difference between a conventional and a mound septic system?
Conventional systems use gravity and work where soil depth and drainage are sufficient. Mound systems are built on engineered sand fill when natural soil conditions don’t meet state requirements — common across Maine due to shallow ledge and high groundwater. Your licensed Site Evaluator will determine which system your lot requires.
Do I need a permit to install or replace a septic system in Maine?
Yes. All new installs and most replacements require a permit from your Local Plumbing Inspector, based on a design from a state-licensed Site Evaluator. We coordinate with the designer and manage the installation once permits are in place.
My septic inspection failed during a home sale. What now?
Move quickly — Maine DEP requires a replacement system be installed within 90 days for shoreland-zone properties. Start with a licensed Site Evaluator for the design, then call us. We’ll get you on the schedule and keep the project moving.