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Verified Reviews for Septic Tank Service pros in Twisp, WA

*The Angi rating for Septic Tank Service companies in Twisp, WA is a rating based on verified reviews from our community of homeowners who have used these pros to meet their Septic Tank Service needs.

*The HomeAdvisor rating for Septic Tank Service companies in Twisp, WA is a rating based on verified reviews from our community of homeowners who have used these pros to meet their Septic Tank Service needs.

Last update on November 14, 2025

Find Septic tank pros in Twisp

Mrs. Pumpco
5.0(
1
)
Septic Tank - Clean or Pump OutSeptic Tank - Clean or Pump Out - For Business

Serving Twisp, WA and surrounding areas

Approved

In business since 2002

Free estimates

Credit card accepted

Mrs. Pumpco is committed to excellence in every aspect of our business. We uphold a standard of integrity bound by fairness, honesty, and personal responsibility. Our distinction is the quality of service we bring to our customers. Accurate knowledge of our trade combined with ability is what makes us true professionals. Above all, we are watchful of our customers' interests, and make their concerns the basis of our business.

Response time40 mins
Recommended by100%of homeowners
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Avatar for Chelan County Septic
Chelan County Septic
5.0(
3
)
Septic System - Install or ReplaceSeptic System - Install or Replace - For BusinessSeptic System - Repair+3 more

Serving Twisp, WA and surrounding areas

Free estimates

Emergency services offered

Credit card accepted

Emergency Septic Tank & System Services\nResidential Septic Tank Pumping\nCommercial Septic Tank Pumping\nLicensed Septic Tank Inspections\nOSS Property Transfer Septic Inspection\nFind & Repair Septic Tanks\nCleaning & Maintenance for Septic Systems\nNew Septic System Installations\nDrain Field Repairs for Septic Systems\nOn-site System Maintainers (OSM)\nFlexible Scheduling, Including Weekends

Recommended by100%of homeowners
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Avatar for King County Septic
King County Septic
3.6(
10
)
Septic System - Install or ReplaceSeptic System - Install or Replace - For BusinessSeptic System - Repair+3 more

Serving Twisp, WA and surrounding areas

In business since 2018

Free estimates

Emergency services offered

"We needed the septic system repaired, tested and certified for sale of the home. King County Septic explained things in a simple and straightforward manner, agreed on a price, and performed the work quickly and efficiently. They were very responsive to our concerns and got back to us quickly to answer questions that we had along the way."
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Recommended by75%of homeowners
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Avatar for American Home Shield – Home Warranty
American Home Shield – Home Warranty
3.5(
5,689
)
Septic System - Install or ReplaceSeptic System - Install or Replace - For BusinessSeptic System - Repair+3 more

Serving Twisp, WA and surrounding areas

In business since 1971

Credit card accepted

"The technician emptied the freezer, which was in the basement, to work on the part that needed repair. Then he neglected to put anything back into the freezer, including a turkey I had bought for Christmas and a rack of ribs. Two days after he left, I went out of town for two weeks. The turkey actually exploded and spewed its liquid all over everything, which had to be discarded. I let AHS know and they couldn't even bother to call me or follow up on this. I'm considering not renewing my contract with them because of the quality (or lack thereof) of many of the providers they send."
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+2

Recommended by65%of homeowners
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LIVING ROOTS CONSTRUCTION LLC
New to Angi
Septic Tank - Clean or Pump OutSeptic Tank - Clean or Pump Out - For Business

Serving Twisp, WA and surrounding areas

In business since 2020

Free estimates

Credit card accepted

We take great pride in our experience, expertise, quality, and customer service that we provide to meet the consumer's needs. It is our mission to provide excellent workmanship and complete customer satisfaction from start to completion of a project. In order to understand the needs and expectations of our customers, we take great care to work and communicate with every customer in a professional manner. Our reputation is based on service, safety, and quality, regardless of how large or small the job. \n

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Septic Tanks questions, answered by experts

Common problems include low water pressure, no water, and strange noises. Regular maintenance prevents many issues.

The price you’ll pay for service from a septic tank company will depend on the specific service you need. Here are some common services, along with average pricing:

  • Anaerobic septic system installation: $3,000–$8,000

  • Aerobic septic system installation: $10,000–$20,000

  • Septic tank pumping: $250–$550

  • Percolation test: $700–$2,000

  • Leach field installation: $2,000–$10,000

These numbers vary based on your septic system size, property layout, and more, so the best way to get an accurate estimate is to contact a septic tank professional for a custom quote.

A septic tank riser should extend to just above the ground level or slightly above it. The exact height can vary depending on local regulations and personal preferences, but a common guideline is to have the riser's top flush with or no more than a few inches above the surrounding ground. This height allows for easy access to the septic tank without creating a tripping hazard or obstructing mowing and landscaping activities. It's essential to ensure that the riser lid is easily visible and accessible for regular maintenance and inspection while being mindful of safety and aesthetics.

Septic drain lines (or leach lines) are typically buried between 18 and 36 inches underground, and should be at least 6 inches below the surface. These pipes are perforated and surrounded by filtering materials like sand or gravel. Burying the lines at this depth helps minimize odors and allows bacteria and other biological processes in the soil to effectively treat the wastewater. Burying lines too close to the surface can cause issues unless the soil is very compact and stable.

Call a dedicated well and pump professional to install your new well pump. In some cases, plumbers may have the experience needed for the installation, but it’s always better to go with a specialized pro. Well and pump contractors have hundreds of hours of experience with all different types of wells and pumps. 

The Twisp, WA homeowners’ guide to septic tank services

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

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