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Recent Septic Tank Service Reviews in Seattle

  • A Advanced Septic
    5.0
    Jacob Porter, tech from A-Advanced Septic did a fine job. Over & beyond. He gave us a lot of information on our septic system. Like, what we needed to upgrade & other procedures for our septic to drain smoother. I highly recommend him & A-Advance Septic. Thanks so much Jacob.
    Ray F.
  • Harts Services
    5.0
    Went well! Worker was very friendly and personable. Fixed my issue then showed me how my issue could be fixed! Very happy with how everything went.
    Sade abs Ruthey M.
  • Above Grade Septic
    5.0
    Great team, family-owned business. Reliable and fair, and fun to work with. Very transparent about the work needed, with fair prices, and a high bar for quality. We will always use Above Grade for our septic system. Great work, great people.
    Kevin K.
  • Dirty Deeds Septic Services
    5.0
    The service was excellent. Very professional. Its. extremely excellent work. He showed up early and did a great job above and beyond.
    Jennifer J.
  • Bob Oates Sewer Rooter & Plumbing LLC
    5.0
    Jeremy was great and professional when assessing our problem. He was able to guide us in the right direction even though his company did not do septic work. The only downfall was the 15 minute diagnosis rate was $117. I am totally fine paying for services but this seemed like a steep price for only 15 minutes. I would definitely use Bob Oates in the future if I have any other plumbing issue and hope maybe prices were a little more reasonable :
    Kyra B.
  • Bob Oates Sewer Rooter & Plumbing LLC
    5.0
    The septic tank all of a sudden failed and I was told that I needed to connect to the sewer. I called Above Grade Septic to get the quote, but they never contacted us back with the quote. After a few days of waiting, I had decided to pursue other contractors. Bob Oates Plumbing was the first one who contacted me back immediately - on the same day. Aaron, who is the PM, came out the next day to survey the site and explained to me what would take him to get me the quote. In couple of days (a bit earlier than what he anticipated) he came up with the quote and asked me if I want to go ahead. It was a bit more expensive than what I hoped it would cost, but given that my whole family was living with a portable toilet for 2 weeks and my family just went through the house restoration from the water damage for 4 months, and the reviews from Angie's List are top-notch, I decided to go ahead. The crew came out very early in the morning. The first thing they did was to walk me through the schedule. They were very professional and explained to me in detail that left me no question to ask. The basic work was done in 1.5 days - we were able to use the water! For the rest of the week, they went through the inspection with the city and finished the work. One thing I think they really stand out compared to other contracts I dealt with is that they communicate to their customers on the status. If there is a slight change to the schedule, they always call me in advance and let me know. I really loved that, especially after dealing with numerous contractors not only keeping the schedule but not tell me anything. Even though I think it was a bit expensive, I think it is well worth it and I am going to contact Bob Oates Plumbing if/when I have any need for the plumbing work in the future
    Ho-Joon L.
  • Bob Oates Sewer Rooter & Plumbing LLC
    5.0
    Tech arrived on time. was friendly and helpful. Fully explained the process. Wrote up a detailed report.
    Kim O.
  • Chris's Plumbing
    5.0
    Chris' Plumbing did a good job. They were on time. They explained what they were doing and why. They cleaned up after themselves. The price was as agreed with no upselling. I would hire them again.
    Robert B.
  • A Advanced Septic
    5.0
    Tonight I walked out to find my son had accidentally left the water on in a hose that caused it to rupture under the pressure. This had to have been going for quite sometime as it caused my alarm to go off and the soil around the tanks settled creating 2 2ft holes near to the tanks. Totally freaked me out as I am very new to septic. Both Adam & Lennie helped me out through texts and a phone call, calming me down and making me feel so much better. I will be reaching out to them for ANY septic needs in the future. Their kindness and responsiveness were above and beyond and GREATLY appreciated. Thank you!
    Cyndy V.
  • Vortex Plumbing Inc
    5.0
    They were very prompt and professional. very easy to get a hold off. the young man was very efficient and also very friendly.
    Debbie C.

Last update on April 30, 2022

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Septic Tank Contractors in Seattle, WA

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Septic Tank Service FAQ

  1. What are the signs your septic tank is full?

    Answer: There are several signs that indicate your septic tank could be full. These include standing water over your septic tank, a strong odor coming from your yard, gurgling water, slow drains, or a sewage backup. While many of these signs could also be indicative of a clogged system, they should all be checked out by a professional ASAP to avoid costly damages. In the absence of any of these signs, it’s recommended that septic tanks be emptied every 3 to 5 years on average.

  2. How often should a septic tank be serviced?

    Answer: On average, septic tanks should be serviced every 3 to 5 years in the absence of any worrying signs that the tank is clogged or full. The size of your septic tank, the number of people living in your home, and your average water usage will all impact how often your septic tank needs to be serviced.

  3. What are the most common causes of septic tank failure?

    Answer: The most common cause of septic tank failure is improper maintenance. Failing to pump a septic tank on the appropriate schedule will cause septic tank failure and likely result in a costly septic tank repair or replacement. On average, septic tanks should be pumped every 3 to 5 years, but the size of your tank, the number of people in your home, and your average water usage may shorten or extend this timeframe.

  4. How much does it cost to pump a septic tank?

    Answer: The cost to pump a septic tank is $400 on average or about $0.30 per gallon. The size of your septic tank, as well as local labor costs, will impact the cost of pumping your septic tank. Most septic tanks are between 600 and 2,000 gallons in size, meaning the average cost range is between $180 to $600.

  5. How much does it cost to install a septic system?

    Answer: The cost to install a septic tank system is between $3,060 and $9,810, on average. The size of the septic tank you choose, the land you’re installing it on, the type of system you choose, and local labor costs will all influence the total cost of installing a septic system. Anaerobic septic tanks (those that don’t need oxygen) typically cost between $3,000 and $8,000. Aerobic systems, which utilize oxygen to activate bacteria and are popular on smaller properties, usually cost between $10,000 and $20,000.

  6. How long does a septic system last?

    Answer: When septic systems are well maintained, they can last up to 30 years or more. If a septic system isn’t properly maintained, such as when it isn’t pumped regularly, it may malfunction and require costly repairs or a premature replacement. In general, septic tank pumping is recommended every 3 to 5 years to ensure the septic system lasts as long as possible.

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Septic tank companies in Seattle are rated 4.5 out of 5 based on 14,268 reviews of the 67 featured Seattle pros

The Angi rating for Septic tank companies in Seattle is a rating based on verified reviews from our community of homeowners who have used these pros to meet their Septic tank companies needs. Angi’s review system takes into account ratings on price, quality, timeliness, responsiveness and feedback for Angi Certified Pros.