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Top-Rated Sewer cleaners in Helena - Updated Nov 2026

Sewer Cleaning FAQs, answered by experts

Sewer gas in any location can cause eye and respiratory irritation if you’re exposed at low levels, or more severe symptoms if you’re exposed at high levels—but fortunately, the fresh air outside means it’s less likely to affect your physical health. However, sewer smells outside can still indicate significant plumbing problems that will need to be dealt with, such as a potentially damaged sewer line or roof vent pipe.

Cat pee has a strong ammonia-like smell, so if you smell cat pee but don’t have a cat or don’t suspect your cat has any accidents, there could be other issues at hand. Aside from pet urine, your house may smell like cat pee from leaking freon from an old fridge, mold, spilled cleaning supplies, or even outside odors from nearby farms.

Yes, hiring a drain cleaner is worth it, especially when compared to the cost of not being able to use a sink, shower, toilet, or bathtub and the potential damage that flooding can cause in your home. You might try a temporary drain cleaning liquid or snaking it yourself, but if the clog is out of reach or these methods do not work, then hiring a professional drain cleaner is the way to go.

In most states, companies that perform sewer cleaning services don’t need specific licensing, but you should always ensure you hire a licensed and certified plumber to get the work done. You can use our state licensing tool to check whether the potential sewer cleaning company holds a plumber’s certification and license. Hiring a certified sewer cleaning services guarantees that the work will be done safely, there won’t be additional damage done to your home, and the problem will be fixed.

If you want to avoid using a snake to unclog a drain, or if you don’t have one, try vinegar and baking soda. Pour 1 cup of baking soda down the drain, followed by 1 cup of white vinegar. Wait for 15 minutes, and then run hot water (but not boiling water) down the drain to see if the clog is clear. Repeat multiple times as needed.

The Helena, MT homeowners’ guide to sewer cleaning services

From average costs to expert advice, get all the answers you need to get your job done.