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*The Angi rating for Sewer Cleaning companies in Knapp, WI is a rating based on verified reviews from our community of homeowners who have used these pros to meet their Sewer Cleaning needs.

*The HomeAdvisor rating for Sewer Cleaning companies in Knapp, WI is a rating based on verified reviews from our community of homeowners who have used these pros to meet their Sewer Cleaning needs.

Last update on January 19, 2026

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Legendary Plumbing, LLC
4.3(
6
)
Sewer Main - ClearSewer Main - Clear - For Business

Serving Knapp, WI and surrounding areas

In business since 2019

Free estimates

Legendary Plumbing, LLC, is a leader in providing our customers with the highest quality products and craftsmanship in an honest, efficient and professional way. Our pledge is to create successful relationships with our customers, employees, community by building trust and treating every project with the utmost integrity and exceeding expectations. \n \n\nWe look forward to working with you!

Kitchen remodel
Wells
Remodel
Shower
Response time1 day
Recommended by83%of homeowners
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Avatar for American Home Shield – Home Warranty
American Home Shield – Home Warranty
3.5(
5,688
)
Sewer Main - ClearSewer Main - Clear - For Business

Serving Knapp, WI and surrounding areas

In business since 1971

Credit card accepted

"The called Jayco plumbing in Amarillo, TX. They located my buried sewer line and cleaned out both sewer clean-outs to my new house."
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+2

Recommended by65%of homeowners
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Sewer Cleaning questions, answered by experts

Your sewer line can get grimy quickly. To prevent sludge buildup in your sewer line, pour a mixture of 1/3 cup of vinegar and 1/3 cup of baking soda down each drain in your home once a month. After about 30 minutes, flush the drain with hot water.

Some plumbers recommend 3/4 cup of bleach instead to clean any germs and bacteria that may build up in your sewer line. But this won’t break down any active clogs, and it cannot be combined with vinegar, as the mixture will create a toxic, hazardous gas.

A sewage smell in your crawl space is usually from a damaged or clogged pipe leaking sewer gasses or actual sewage underneath your home, but there are some other common causes. Moisture, from poor or damaged encapsulation or a malfunctioning sump pump, can harbor mold and bacteria, causing a musty smell. Pests can also get stuck in your crawl space and die, which causes a sewage-like odor.

To get rid of a sewer smell in your crawl space, you’ll have to find the source of the problem. If it has to do with your sewer lines, then repairing the line will help. You may need to make other repairs, like fixing your sump pump or encapsulating your crawl space to reduce moisture. After you make the repair, depending on the issue, you may still need to clean out your crawl space to get rid of the stink.

Costs range from $200 to $600, depending on the severity of the blockage and access difficulty.

Costs vary by severity and access requirements. Typical pricing ranges from $100 to $350, increasing with complexity or for emergency services.

The Knapp, WI homeowners’ guide to sewer cleaning services

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

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