Why Are All the Toilets in My House Clogging? | 17 Plumbing – Oakville’s Trusted Plumbers

Are all the toilets in your house clogging at the same time? If yes, you're not alone — and this isn’t just a coincidence. It’s a warning sign of a larger plumbing issue that needs immediate attention.

At 17 Plumbing & Construction Design Ltd, we’ve helped hundreds of homeowners in Oakville and the GTA deal with multiple toilet clogs — and we know exactly what to look for.

🚨 Common Reasons Why All Toilets in Your House Are Clogging:

1. Main Sewer Line Blockage

If more than one toilet is backing up, the problem is likely in the main sewer line. This underground pipe connects your home to the city sewer. A blockage here affects your entire home’s drainage system.

Common causes:

Tree roots growing into the line
Accumulated grease, wipes, or debris
Collapsed or cracked sewer pipe

✅ Book a main line inspection with our Oakville sewer camera specialists today.

2. Clogged or Misaligned Drain Vent

Toilets need proper air flow to flush correctly. If your plumbing vent stack is blocked by leaves, snow, or even a bird’s nest, your toilet won’t flush properly — and all of them may clog.

🛠️ We offer rooftop vent clearing and full drain diagnostics.

3. Low Flow Toilets With Build-Up

Older or low-quality low-flow toilets can clog easily over time — especially in multi-unit homes. If mineral buildup or paper accumulates in the trapway, multiple toilets may begin clogging around the same time.

🚽 Ask us about upgrading to a high-efficiency, clog-resistant model.

4. Improper Drain Slope or Installation

If your home was renovated, or if the original plumbing wasn't up to Ontario Building Code standards, your drain pipes might have the wrong slope — slowing water flow and causing repeated blockages.

📐 Our licensed Oakville plumbers can inspect your full drainage layout.

🧰 How We Fix Whole-Home Toilet Clogs in Oakville

At 17 Plumbing, we don’t just snake the line and leave. We diagnose, inspect, and prevent.

Our process includes:
✅ Video camera sewer inspection
✅ High-pressure drain cleaning (Hydro Jetting)
✅ Root removal and trenchless pipe repair
✅ Toilet and vent pipe diagnostics
✅ Permanent solutions — not band-aid fixes

📍 Why Oakville Homeowners Trust 17 Plumbing

✔️ Fully Licensed & Insured
✔️ 5-Star Google Rating
✔️ Emergency Plumbing Services Available
✔️ Locally Owned & Operated in Oakville
✔️ Affordable & Transparent Pricing

💬 Call Us Today — Don’t Wait for a Sewer Backup!

If all your toilets are clogging, you need immediate help from a licensed Oakville plumber.
Let 17 Plumbing & Construction Design Ltd handle it — quickly, cleanly, and professionally.

📞 647-862-1317
🌐 www.17plumbing.ca

?? Your go-to experts for bathroom plumbing upgrades in Oakville and across the GTA.

❓ Frequently Asked Questions – Toilet Clogs in Oakville Homes

Q1: Why are all the toilets in my house clogging at once?

A: If all your toilets are clogging simultaneously, it's most likely a main sewer line blockage or a blocked plumbing vent. These issues prevent proper drainage and pressure, causing multiple fixtures to back up at the same time.

Q2: Can tree roots clog my toilets?

A: Yes. In Oakville, tree root infiltration is a common cause of main sewer clogs. Roots enter cracked or old pipes underground, causing major blockages that affect all toilets and drains in your home.

Q3: What should I do if my toilet keeps clogging every few days?

A: Recurring clogs may mean your toilet isn’t flushing properly, the trap is obstructed, or there’s buildup in your branch drain. It could also signal a larger issue in the main sewer line. A camera inspection will identify the problem.

Q4: Is it safe to use chemical drain cleaners for toilet clogs?

A: No — chemical drain cleaners can damage your toilet, pipes, and septic system. They’re also unsafe for your health. Use a plunger or call a licensed Oakville plumber for safe, effective clearing.

Q5: How much does it cost to fix a toilet clog in Oakville?

A: At 17 Plumbing, basic toilet clogs start around $200. If the clog is in the main sewer line or requires camera inspection or hydro jetting, it may cost more. We always provide upfront pricing before starting the work.