Tertiary Septic Systems Installation & Repair
As a trusted septic system specialist serving Parry Sound and Muskoka, we provide expert installation, replacement, and repair of trench bed, filter, and tertiary systems. Our team also offers advanced, eco-friendly solutions such as the Ecoflo® septic system and the cutting-edge Waterloo Biofilter system.
What Is a Tertiary Septic System?
A tertiary septic system delivers the highest level of wastewater treatment available for residential properties. These septics go beyond basic conventional tile or filter bed systems by actively removing additional nutrients, bacteria, and contaminants, producing effluent clean enough for the most environmentally sensitive areas - including lakefronts, wetlands, and properties subject to stringent regulation.
Do I Need a Tertiary Septic System?
A tertiary system may be the best choice if:
- Your property is on or near a lake, river, or environmentally protected area
- You’re required by township or provincial regulations to meet advanced treatment standards
- You want the absolute best protection for your land, family, and our local ecosystems
- You’re replacing an old/failing septic on a sensitive site
- You want future-proof value for your investment
Not sure what’s required for your property? Request a Free Assessment and Consultation
Benefits of Tertiary Septic Systems
- Maximum Filtration: Removes harmful nutrients (phosphorus/nitrogen) and bacteria unsafe for the environment
- Compliant With the Strictest Regulations: Meets or exceeds all local, provincial, and environmental requirements
- Lake & Well Protection: Best solution for drinking water safety and lakefront stewardship
- Flexible Installation: Ideal for challenging soils, small lots, or properties on the water
- Peace of Mind: Advanced technology + Greenleaf’s expert installation = trouble-free performance
Greenleaf Excavation: Your Local Tertiary Septic Expert
- Fully Licensed & Insured: All systems designed and installed to Ontario Building Code standards
- Regulation Ready: Deep familiarity with Parry Sound, Muskoka, and Seguin environmental requirements
- Certified for All Approved Systems: Including EcoFlo®, Waterloo Biofilter, and other leading tertiary technologies
- Comprehensive Service: Site review, design, permit handling, installation, upgrades and repairs
- Transparency, Reliability, Results: On-time, on-budget, no surprises
How do tertiary systems differ from other septic systems?
They use advanced, multi-stage filtering to produce the cleanest effluent, protecting both drinking water and natural habitats.
Are they required for every property?
No - mostly for water-sensitive or regulated sites, and small lots. We advise what’s right for your specific property.
What brands or technologies do you offer?
We install certified systems such as EcoFlo®, Waterloo Biofilter, and more - matched to your site and regulatory needs.
Can you upgrade my old septic to a tertiary system?
Yes! Tertiary systems are great for code upgrades, home expansions, rebuilds, or mitigating environmental risks.