5 Signs Your Main Sewer Line Is Clogged

Guides / Drain Cleaning

Why this distinction matters

A branch line serves one fixture. The main lateral carries everything from the house to the city main. If the main is blocked, waste from every fixture backs up toward the lowest opening in the building — and paying to clear a single sink accomplishes nothing. Getting this right first is the whole game.

1. Two or more fixtures acting up at once

This is the strongest single indicator. A slow kitchen sink is a kitchen problem. A slow kitchen sink and a slow basement shower is a main line problem. Walk the house and run water in each fixture before you call anyone — it's the most useful information you can give us.

2. Gurgling from a different fixture than the one you're using

Flush an upstairs toilet and hear the downstairs tub burp? That's air being displaced past a partial obstruction with nowhere else to go. Gurgling is early-stage; it usually shows up weeks before a full stoppage.

3. Water in the basement floor drain

The floor drain is the lowest opening in most Colorado Springs homes, which makes it the relief valve for a blocked main. Any water or waste appearing there — especially when you run the laundry — means stop using water and call. This is an emergency call.

4. Toilets that rise, drop, or won't clear

Toilets are directly tied to the main and are usually the first to complain. Watch for a bowl that fills higher than normal and drains slowly, a level that drops on its own, or a toilet that needs multiple flushes. If two toilets do this, it isn't the toilets.

5. Sewer smell indoors or in the yard

A sewage odor in the basement, or a patch of yard over the lateral that smells, stays soggy, or is suspiciously greener than the rest, points at a blocked or broken line. A depression forming in that same strip suggests soil is escaping into a break — that's a repair conversation, not a cleaning one.

What to do right now

1. Stop running water, including the dishwasher and washing machine.
2. Don't pour chemical drain cleaner into a fully blocked line — it just sits there.
3. Note which fixtures are affected and whether it's getting worse.
4. Call us. We'll open the line, then camera it so you know what caused it.

How we clear a main line

We locate and open a cleanout, run a sectional or drum machine sized to your lateral, and confirm full flow. Where roots or grease are the cause, we follow with hydro jetting to clean the pipe wall rather than just the center of it. Then camera footage, so you see what we saw. Details on main sewer line cleaning.

Available across Colorado Springs, Monument, Fountain, Castle Rock, and everywhere else we serve.

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