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    Canadian Owned and Operated
    Superior Plumbing & Heating
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    Home / St. Thomas / Septic Tank Replacement

    Septic tank replacement services in St. Thomas

    • Expert local company near you
    • We can fix any issue, no matter how complex it is
    • Our plumbers are competent and skilled
    • Fair and affordable prices
    • Extensive warranty on labour and parts

    call us Call us and we’ll come to you (226) 210-3532

    replacing an old septic tank in St. Thomas
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    Why Work with Us for Septic Tank Replacement in St. Thomas

    4000+
    Positive reviews on:
    Superior Plumbing reviews google my business St. Thomas
    3974 reviews
    Superior Plumbing reviews homestars St. Thomas
    345 reviews
    20+
    Years of successful work
    Our licensed plumbers have years of experience dealing with the most complex plumbing issues. We can arrive at any time convenient for you and have fully stocked trucks to provide any repair or installation services you need.
    85
    TRAINED & QUALIFIED PLUMBERS
    You can count on us to handle any job with professionalism. Our team is certified to solve any plumbing problem, using modern repair methods and top-notch tools to achieve the highest quality results.
    We are Local
    We have offices in many Canadian cities to help you as fast as possible.

    Achievements of Superior Plumbing

    Superior Plumbing ang haeting best aword winner 2021 HomeStars
    same-day service
    award best plumbing company 2019 HomeStars
    Satisfaction
    HomeStars award Superior Plumbing & Heating best of the best winner 2022

    What people are saying about our septic replacement service in St. Thomas?

    homestar review St. Thomas 4.7/5

    Hundreds of verified reviews

    google review St. Thomas
    Olivia Reid

    Superior Plumbing was very quick and efficient helping me unclog my shower drain in my student house

    Feb 2, 2026
    Baptiste Lecomte

    Great customer service. Tyler was very friendly and helpful with my water situation.

    Oct 25, 2025
    Rollo James

    drew addressed my leaky toilet in a fast and good manner. called superior plumbing and heating for a leaking toilet. they sent drew and he replaced my wax gasket. highly recommend!!

    Nov 26, 2025
    Lucy Telenski

    Matthew from Superior Plumbing & Heating did an excellent job unclogging my toilet. He assessed the situation right away and cleared the blockage quickly without any mess. He was professional, friendly, and made sure everything was flushing smoothly before finishing the job. The toilet works perfectly now and there have been no issues since.

    Oct 18, 2025
    Sharon Ruddock

    Matt and Ben did a great job, friendly, knowledgeable and professional Thank you

    Mar 19, 2026
    Nihal Khan

    Thanks to Aaron for changing my basket strainer!

    Dec 28, 2025
    Carolyn Patterson

    We contacted Superior Plumbing and Heating when we needed to replace our 20 year old water softener. They responded quickly and their technicians installed a new water softener within 24 hours of our call. They completed the work efficiently and in a courteous manner and would recommend their services to other customers in the future.

    Feb 18, 2026
    Nitin Varshney

    They did a wrong diagnosis and told me I need to change tank and jet pump. The actual problem was in the foot valve. I had to pay them for a wrong diagnosis. I had to hire another company, and they did the right diagnosis for the problem.

    Jan 15, 2026
    Matthew B

    Mike came and fixed my leaking toilet. He was super nice and friendly. Would definitely recommend!

    Jan 22, 2026
    Arash

    Adam did a great job with our kitchen sink plumbing. He quickly identified and fixed the clogged pipe, and the whole process was smooth. His work was clean, efficient, and professional. Really appreciated how fast he handled everything.

    Mar 23, 2026
    David McConnell

    Mike was here. Back up sump pump system to be installed.

    Mar 24, 2026
    Ryan Bonwick

    Mike is doing great helping out with getting us a new hot water tank. Thanks Mike

    Mar 25, 2026
    Top result in a blink of an eye
    We at Superior Plumbing & Heating adhere to the highest standards set by the industry. Our plumbers are always prepared to handle any plumbing repairs or replacements you may need since they have at least 17 years of expertise.
    Order a specialist now (226) 210-3532
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    septic replacement service St. Thomas

    Septic Tank Replacement in St. Thomas

    Like many other systems, septic systems can cease to function correctly after years of usage. If sewage has backed up into your house or unpleasant smells are evident in your backyard, it’s a sign that your septic system has failed. It is necessary to make a decision about septic system installation or repair in St. Thomas depending on the cause. Let”s take a look at the most commonly encountered issues:

    • Standing water. This means that your septic tank is unable to properly eliminate water, leading to bacterial growth. Contact Superior Plumbing & Heating to schedule a routine inspection and arrange for a new septic installation in St. Thomas.
    • Frequent repairs. Regular maintenance is beneficial, but if repairs are needed frequently, consider replacing the septic tank.
    • Unpleasant odours. Gases can enter your home through sewers, toilets, or drainage fields. If gases return after flushing your septic system, it is likely that your unit has failed and you will need to replace it.
    • Lash and green grass. Green grass is usually a great sign, but it can also be a signal that your soil has been enriched with sewage. It is important to check for leaks.
    • Pipe backups. Consider upgrading the system if you have to pump out septic tanks frequently and sewage flows through the toilet.

    Contact Superior Plumbing & Heating if you are experiencing any of these problems. We will determine the cause of the problem and fix it quickly before it escalates into an inevitable disaster.

    Why and when should you fix the components of the septic tank?

    Superior Plumbing & Heating can solve your problems with the repair or replacement of a tankless septic system, aerobic system or anaerobic system in St. Thomas. Most problems can be solved by simply replacing damaged components:

    Re-installation or repair of the septic line. Backups can result from broken or clogged septic pipes. Fortunately, septic lines can be repaired from the house to the septic tank that collects the wastewater, from the septic tank to the junction box and replacing the septic tank side. We offer a wide range of solutions to any problem.

    Replacement of the septic field. The septic field in your home may need to be replaced due to poor maintenance or damaged components, improper installation, or because the soil has become more compacted for various reasons.

    Repair of a septic tank. A faulty tank can put stress on the rest of your system and cause it to fail. We offer concrete or plastic septic tanks to suit your needs.

    Replacement of junction box. Damage to this part of the equipment is usually caused by wear and tear, improper installation or physical damage. Our septic system contractors in St. Thomas will gladly install the entire junction box in one day.

    Repairing baffles on a septic tank system. The baffles in your septic tank are important components, and if they are damaged, they can cause the system to fail. Both outlet and inlet baffles can be installed by Superior Plumbing & Heating efficiently!

    How long do septic tanks typically last?

    The type of tank can also affect its service life. Septic tanks made of steel begin to rust sooner. They begin to lose their baffles (which leads to clogged drain fields) and then rust on the sides or bottom. If your tank is 15 to 20 years old or more, chances are it’s rusted. Concrete septic tanks have a longer service life, usually over 40 years. However, it also depends on the acidity of the soil around the tank, as well as the quality of the materials used in the construction of the tank. Septic tanks made of plastic and fibreglass are durable. Mechanical damage is the only exception. Regular cleaning of the septic tank will extend its service life significantly, so don”t neglect it!

    What makes Superior Plumbing & Heating Unique?

    Not sure if you should change your septic system? At Superior Plumbing & Heating, you can get in touch with septic tank installers. All of our highly-trained septic field installers in St. Thomas are prepared and have all the necessary tools on their vehicles.

    Our specialists will choose the best type and size of tank for you and provide you with all the necessary parts (in case of repair), so you don’t have to lift a finger. With us, you can enjoy flexible scheduling, a full warranty, a free estimate, and no overcharges. Contact us right now and we will provide you with excellent-quality septic system servicing in St. Thomas!

    Get a plumber now

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    St. Thomas areas served by our septic replacement plumbers

    Our plumbers work throughout St. Thomas, including areas such as:

    • Dalewood
    • Fairview
    • Freeman Lane
    • Harvest Run
    • Lynhurst
    • Miller’s Pond
    • Old Lynhurst
    • Orchard Park South
    • Shaw Valley
    • Aylmer
    • Ingersoll
    • London
    • Stratford
    • Strathroy
    • Tillsonburg
    • Woodstock

    This septic tank replacement service is popular in the following cities besides St. Thomas

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    best hvac repair company in St. Thomas
    Superior Plumbing & Heating
    (226) 210-3532
    (226) 400-6449
    St. Thomas

    28 Princess Ave, St. Thomas, ON N5R 3V4, Canada

    info@superiorplumbing.ca
    hours of operation: Monday - Sunday 12:00 AM -11:59 PM
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