Local, on Vancouver Island
Septic Service Areas Across the Cowichan Valley
The short answer
Duncan Septic Systems serves the rural Cowichan Valley Regional District — Duncan, Cobble Hill, Shawnigan Lake, and Mill Bay, plus Cowichan Bay, Maple Bay, Lake Cowichan, and Chemainus — with septic installation, repair, pumping, and inspection filed with Island Health across all four core communities.
From acreages around Duncan to sensitive lakeside lots at Shawnigan Lake, Duncan Septic Systems covers the rural Cowichan Valley. Pick a community below for local detail on soils, rules, and what systems tend to need.
Areas we serve
- DuncanSeptic install, repair, and pumping on the rural acreages around Duncan — Glenora, Sahtlam, Maple Bay.
- Cobble HillAcreage septic service across Cobble Hill, from replacements to advanced-treatment installs.
- Shawnigan LakeAdvanced Type 2 and Type 3 systems around Shawnigan Lake, designed to protect the lake.
- Mill BaySeptic service for Mill Bay's rural and waterfront properties in the south Cowichan.
Duncan Septic Systems also serves Cowichan Bay, Maple Bay, Lake Cowichan, Chemainus, Crofton, Glenora, and the smaller communities of the rural Cowichan Valley Regional District.
Not sure if your property is in the service area? Request a free assessment from Duncan Septic Systems.
Ready for a septic systems quote in Duncan?
Duncan Septic Systems offers free on-site assessments across the Cowichan Valley Regional District.