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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

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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(
5,688
)
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

"I just pay $75 you never know who's going to come out. They do everything electrical. Just about everything is covered except the septic tank. I had an air conditioner replaced. It went great, all I had to do was pay for the freon. He didn't charge e more than what was needed."
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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

The smallest septic system available for purchase typically includes a 750-gallon tank. However, the smallest size you can legally install is determined by local regulations, and many areas require a minimum capacity of 1,000 gallons. The cost to install a small septic system generally ranges from $2,910 to $13,900. Before proceeding, it is essential to check with your local health department or consult a local septic professional to confirm the minimum legal requirements in your area.

How do you set your well’s pressure tank? All you need to do is first drain the tank of water and find the pressure switch. Remove the switch cover and adjust the switch with a wrench—clockwise to increase water pressure, and counter-clockwise to reduce it. Each complete turn of the nut on the switch should equal 2.5 psi. Once this is done, replace the switch cover. All that’s left is to adjust the pressure of the tank itself using an air compressor and a tire gauge to support the new setting.

French drains, sump pumps, and exterior waterproofing systems are common options. Choose one that best suits your property’s needs.

Most home wells start at 100 feet, and many go as deep as 200 or 300 feet. 

It takes quite a lot of water to meet the demands of showers, toilets, faucets, and appliances like dishwashers and laundry machines, and shallow wells struggle to provide this amount quickly. If you anticipate having high water usage in the future, it’s often better to drill slightly deeper and give yourself a bit more water storage than you need.

A cistern works by collecting rainwater from your gutters and downspouts and storing it in a holding tank. The holding tank can be installed above or below ground, and the size will depend on your household needs. The stored water can then be used for household tasks, watering your garden, and even for drinking water.

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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