Services

  • A person wearing blue shorts, black boots, and yellow gloves is installing or maintaining a green corrugated drain pipe into a sewer or storm drain opening in grassy ground.

    Septic Tank Pumping & Maintenance

    Whether you're needing same-day service or routine maintenance, we can take care of your septic tank pumping and filter cleanings. We can even schedule reoccurring services to ensure your system is working properly.

  • White bathroom vanity with marble countertop, gold handles, and two gold faucets. Two large mirrors with gold framing above the sinks, and a black vase with olive branch decoration on the left side. The wall is white and there is a dark tiled floor.

    Drain Cleaning

    Slow or clogged drains can be tricky. That's why we're here to clear the most stubborn sewer clogs. Our technicians are thoroughly trained to diagnose your issue and use professional drain cleaning equipment such as cables or hydro-jetting to get your drains flowing again.

  • Three blue portable toilets labeled 'Cotter's' with a mountain and phone number, set on grassy area with mountains in background.

    Portable Toilet Rentals

    Whether you're planning for an event or job site, we provide both short-term and long-term portable toilets, handwash, and sanitation stations. We have reputation for providing clean and prompt service at a great rate.

  • A white 'For Sale' sign with red text on a residential property with trees and houses in the background.

    Sewer Line Inspections

    Looking to buy a home? Or having reoccurring sewer issues? Camera inspections are the only true way to know the condition of the sewer system. Our technicians will camera the line and provide a full report of their findings.

  • Construction site with a yellow excavator digging earth near a modern building.

    Pipe Repair & Replacement

    If it turns out you need to repair or replace your water or sewer line, we can get your line up and running in tip-top shape. We use some advanced technology to replace your lines with minimal disruption.

  • Chef cooking vegetables in a frying pan on a stove

    Restaurant Grease Trap Pumping & Maintenance

    Fats, oils, and grease entering the sewer line can cause major issues. We pump and clean commercial kitchen grease traps (interceptors). We can keep you on a reoccurring cleaning schedule to ensure your system is working properly and meeting municipal requirements.

  • cooking-oil-recycling-cotters-sewer

    Restaurant Cooking Oil Recycling

    We’ll not only maintain your grease disposal, but we’ll also pump and recycle your vegetable cooking oil.

  • A white camper van with bicycles mounted on the back drives on a mountain road under a bright blue sky with the sun shining and scattered clouds, surrounded by mountains and greenery.

    RV Pumping

    Skip the dump. We’ll come to you and pump your RV. Schedule reoccurring services or schedule in advance.

  • Snow-covered houses at dusk with icicles hanging from the roof and warm lights glowing inside

    Thawing Frozen Lines

    Winter in Montana can get a bit chilly. Without proper insulation, your water or sewer lines can freeze and cause damage. We’ll warm and thaw your lines so everything flows as it should. We’ll even provide recommendations to help prevent further freezing.