Some Scarborough properties need a brand new sewer line connection rather than a repair, whether that's for a newly built addition, a secondary suite, or a lot that never had a proper connection to the municipal system in the first place. Installing a sewer line means planning the correct slope, material, and depth so wastewater flows reliably by gravity all the way to the municipal main.
We plan each installation around the specific layout of the property, taking into account existing landscaping, driveways, and any other underground utilities that may run through the intended path. Getting the slope and bedding right at installation time is what keeps a new line performing well for years to come.
Signs You Need Sewer Line Installation
You may need a new sewer line installation if:
You're adding a secondary suite or addition
New living space with additional bathrooms or a kitchen often requires its own connection or an upgraded line to handle the added load.
The property currently uses a septic system
Some older Scarborough lots predate full municipal sewer service and may need a new connection installed to switch over.
An existing line was found to be beyond repair
When a camera inspection shows extensive collapse or damage along most of the line's length, a full new installation may be more practical than patchwork repairs.
You're subdividing or redeveloping a lot
New construction on a severed lot typically needs its own dedicated sewer connection rather than sharing an existing lateral.
Persistent capacity issues
If your current line is undersized for the household's actual usage, installing a larger line can resolve chronic slow drainage.
Municipal upgrade requirements
Some projects require bringing the sewer connection up to current standards as a condition of permits or municipal approval.
How We Do It
Our process for installing a new sewer line:
Step 1: Site assessment and planning
We review the property layout, existing utilities, and desired connection point to plan a route with proper slope toward the municipal main.
Step 2: Permits and locates
Before digging, we arrange for utility locates and any required permits so the installation proceeds safely and in line with municipal requirements.
Step 3: Excavation
We excavate the planned trench to the correct depth and width, taking care around existing landscaping, driveways, and structures.
Step 4: Pipe installation and bedding
We lay the new pipe on properly graded bedding material, checking slope continuously to ensure gravity flow works as intended.
Step 5: Connection and testing
We connect the new line to the home's plumbing and the municipal main, then test the connection for proper flow and watertight joints.
Step 6: Backfill and site restoration
Once the installation is confirmed working, we backfill the trench and restore the surface as close as reasonably possible to its prior condition.
New sewer connections around Scarborough
Some older properties near West Hill and Highland Creek were developed before full municipal sewer service extended to every street, and homeowners occasionally need a new connection when redeveloping or adding a secondary suite. Planning the route carefully matters here because ground conditions near the creek valleys can vary significantly from one lot to the next.
In areas undergoing infill development, such as parts of Agincourt and Dorset Park, new sewer installations often need to account for existing mature trees and established driveways, which we factor into the planned trench route from the outset.
Why Choose Scarborough Plumbing
Careful slope planning
Correct grade is essential for gravity-fed sewer lines, and we plan and verify slope throughout the installation, not just at the start.
Coordination with permits
We handle the locates and permitting steps that go along with a new sewer connection so the project proceeds properly.
Attention to property layout
We plan routes that work around existing landscaping, driveways, and other utilities wherever possible.
Built for the long term
We select pipe materials and bedding methods suited to the soil conditions found on your property.
Sewer Line Installation FAQs
Do I need a permit for a new sewer line?
Yes, connecting to the municipal sewer system typically requires permits, and we help coordinate this as part of the project.
How deep does a sewer line need to be buried?
Depth depends on the slope needed to reach the municipal main and the frost protection required for the area, and we calculate this during planning.
Will installation disturb my whole yard?
We plan the trench route to minimize disruption where possible, though some excavation along the pipe's path is unavoidable.
Can you connect a new addition to my existing sewer line?
In some cases yes, provided the existing line has enough capacity and proper slope; otherwise a separate connection may be recommended.
What pipe material do you use for new installations?
We select material suited to the site conditions and project requirements, discussing the options with you before work begins.
Related Services
Questions? Call (647) 249-7335 or send the form below.