Northwestern Ontario's Trusted Septic Installation Experts
Groundhogs™ Environmental - Septic Solutions has grown to become Thunder Bay and Northwestern Ontario's most trusted name in septic system installation. What started as a focused, family-operated business has evolved into the region's premier septic installation company.
With over 1,200 successful installations across Northwestern Ontario, we've built our reputation on precision, reliability, and results that stand the test of time. Our team specializes in both traditional septic systems and advanced Eljen mound systems, engineered specifically for our region's unique soil conditions and challenging climate.
Headquartered in Thunder Bay, we serve homeowners and businesses throughout the region with the same commitment to quality, professionalism, and customer satisfaction that has defined us from day one.

Factory-trained and certified installers of advanced Eljen mound systems
Expert engineering partners with expedited permit processing - even MOE approvals
Systemized process - most installations completed in about 3 days on average, not weeks
10+ skilled technicians committed to quality and professionalism
Outstanding customer satisfaction backed by 5-year warranty
Cross-Trained. Multi-Disciplined. Proven in Northern Ontario Conditions.
The people who work at Groundhogs™ Septic aren't ordinary labourers – they're leaders in their trades. Our crews are cross-trained specialists who bring expertise across excavation, heavy equipment operation, on-site wastewater design, site grading, and advanced septic technologies like Eljen GSF.
Every crew member at Groundhogs™ has been rigorously trained and field-tested. We hold each other to an exceptionally high standard – many who apply here don't make it. But the ones who stay? They're elite septic professionals who understand both the practical and technical sides of on-site sewage systems.
Our septic installation technicians aren't just skilled with their hands – they understand how soil types, groundwater, bedrock, system sizing, and Ontario Building Code requirements all work together. They can read engineered drawings, coordinate with inspectors and designers, and solve complex installation challenges in real time on clay, rock, and high-water-table sites across Northwestern Ontario.
This isn't just a job for them. It's a craft. And Groundhogs™ Septic is a proud place to work for people who take pride in doing things properly the first time.
We're not just installing septic systems – we're raising the standard for what skilled trades can achieve in on-site wastewater across Northern Ontario.
Factory-trained and certified to install Eljen GSF (Geotextile Sand Filter) mound systems to manufacturer specifications.
Partnered with Thunder Bay's top septic engineers for expedited permit processing. 100% approval success rate including complex Ministry of Environment applications. All installations exceed Ontario Building Code requirements.
Comprehensive liability insurance and WSIB coverage protects you and your property throughout the installation process.
At Groundhogs™ Environmental, we don't just install septic systems – we build lasting relationships with our clients. Every project receives the same attention to detail, professionalism, and commitment to quality that has made us Northwestern Ontario's most trusted septic installation company.