Skip to content

Sewer and drain

Seven Signs Your Sewer Line Needs Attention

Slow drains, gurgling toilets and sewer smells can point to a damaged sewer line. Learn the warning signs and when to book a camera inspection.

Updated 5 minute readBy the Water Wise Solutions team

Illustrative photo of a plumber watching a drain camera monitor beside a basement floor drain

Have your drains been acting strangely lately? Your sewer line usually gives warning signs before it fails completely. Catching them early can mean a smaller repair and less damage to your home.

We offer drain camera inspections, cleaning and sewer repair across Toronto, Peel and Halton. Here are the signs we tell homeowners to watch for.

1. Several slow drains at once

One slow sink is usually a local clog. When the tub, toilet and floor drain all slow down together, the problem is often further along, in the main line.

2. Gurgling toilets and drains

Gurgling happens when air is trapped by a partial blockage. If your toilet bubbles when the washing machine drains, the sewer line may be restricted.

3. Backups in the floor drain

Water coming up through the basement floor drain is a strong sign of a main line problem, because the floor drain is the lowest point in the system.

4. Sewer smells in the basement

A sewer smell can come from a dry floor drain trap, which is easy to fix by pouring water into it. If the smell persists, it can point to a cracked pipe or a failed seal.

5. Soggy patches or lush grass in the yard

A leaking sewer lateral can soak the soil above it. A wet patch or a strip of unusually green grass between the house and the street is worth checking.

6. Repeated clogs after cleaning

If the line clears and then clogs again within weeks or months, tree roots or a sagging section are likely. Cleaning helps for a while, but it does not fix the pipe.

7. An older home with its original line

Many GTA homes still have their original clay or cast iron laterals. Even without symptoms, a camera inspection before you finish a basement or buy a home is a smart step.

What to do next

Book a camera inspection. We will show you the footage, explain what we see and recommend the least disruptive fix, from cleaning to trenchless repair to replacement. If sewage is backing up right now, call our 24/7 line.

FAQ

Common questions

Straight answers to the questions homeowners ask us most. If yours is not here, give us a call.

Can one slow drain mean a sewer line problem?

One slow drain is usually a local clog. Several slow drains at once, especially on the lowest floor, are more likely to point to the main sewer line.

How is a sewer line problem diagnosed?

A camera inspection is the most reliable way. A small camera travels through the line and shows cracks, roots, sags and blockages on a screen.

Should I use chemical drain cleaners?

We do not recommend them for main line problems. They rarely clear roots or collapsed sections and can damage older pipes.

Get a clear, written quote before any work starts

Tell us what is going on and we will book a visit, inspect the problem and give you an itemized estimate with the rebates that apply.