Tertiary Septic System Installation in Simcoe County & Innisfil

We install advanced tertiary treatment septic systems across Simcoe County and Innisfil. Our licensed team designs and installs systems like Waterloo Biofilter, Bionest, Eljyn, System O, Infiltrator ATL, and EcoFlow—ensuring environmentally responsible wastewater treatment that meets Ontario Building Code and protects your property.

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Robinson Enterprises is a licensed installer and BCIN designer of tertiary treatment septic systems, including Waterloo Biofilter, Bionest, and Infiltrator options. These advanced systems provide a higher level of wastewater purification—ideal for sensitive areas, compact lots, or properties with strict environmental requirements. We handle design, permit(s), approvals, and installation with expertise and care.

  • BCIN septic design and permitting
  • Tertiary treatment system installation
  • Waterloo Biofilter, Bionest, and Infiltrator systems
  • Septic upgrades and replacements
  • Environmentally sensitive site solutions
  • System maintenance and troubleshooting

Get expert help designing and installing a code-compliant tertiary treatment system.

Trusted Excavation Since 1990

Where We Work

From small residential projects to large-scale construction jobs, Robinson Enterprises provides expert excavation, demolition, and site services across Simcoe County and nearby regions.

Cookstown

Innisfil

Barrie

Alliston

Bradford

Newmarket

East Gwillimbury

Keswick

Tottenham

Beeton

Thornton

Orillia

Wasaga Beach

Collingwood

Vaughan

Richmond Hill

Angus

Aurora

Here are answers to the most common questions our clients ask.

What is a tertiary septic system?

It’s an advanced septic solution that filters and treats wastewater to a higher standard before it reaches the soil—ideal for areas with strict environmental regulations or limited space.

Yes. We are BCIN-certified to design and submit applications that meet Ontario Building Code and municipal requirements.

We’re approved installers of Waterloo Biofilter, Bionest, and Infiltrator systems.

Yes. We replace or upgrade existing systems to meet tertiary requirements or improve performance.

We serve Cookstown, Innisfil, Simcoe County, and York Region.