Built To Handle The Whole Septic Project
Slegh Septics focuses on one thing and does it completely: septic system design and installation across Southern Ontario. Design, permits, excavation and installation sit with one team — so the property owner isn't left coordinating trades.
One Team Responsible For The Whole Project
A septic project touches design, the approval authority, excavation, tanks, treatment and inspections. When those pieces are split across separate companies, the gaps between them become the property owner's problem. We close those gaps by owning the whole scope.
Our approach shows up in the way we run a job:
- Straightforward communication — clear scope, clear schedule, clear answers
- Proper planning and organized projects
- Quality excavation with attention to site conditions
- Full-project responsibility from design to completion

From Property To Completed System
The same disciplined sequence on every project.
Site Evaluation
We evaluate the property, the proposed development and the site conditions — soil, elevations, setbacks, wells, watercourses and available area.
Design
The septic system is designed around the property's daily design flow and requirements, and the components are matched to the site.
Permit
Required drawings and septic documentation are prepared for the appropriate approval process. Requirements vary by property and municipality.
Installation
Our crew handles excavation, tanks, piping, treatment components and septic bed construction — the whole install stays in-house.
Inspections
Required installation inspections are coordinated through the appropriate authority before the system is covered.
Completion
The system is completed and backfilled, and the project moves toward final grading and site restoration as applicable.
Licensed, Insured & Accountable
BCIN-Registered
Slegh Septics is a BCIN-registered septic system designer and installer, working within the requirements of the Ontario Building Code.
Insured
The business carries insurance. Verified credential details can be provided on request.
Certified Installer
Qualified and certified installer for Waterloo Biofilter, Ecoflo and Eljen advanced treatment and leaching systems.
// Additional credentials and memberships will be added here as they're confirmed.
Certified & Qualified Installer
We're a qualified and certified installer for leading advanced treatment systems — so we can match the right system to your site.



Planning a septic project?
Tell us about the property and what you need. We'll review the details and get back to you on the right next step.