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    Superior Plumbing & Heating
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    Home / St. Thomas / Septic Tank Replacement

    Septic tank replacement services in St. Thomas

    • Certified plumber for septic tank replacement
    • Tank condition and leach field assessed first
    • Honest and transparent pricing always
    • Extensive warranty on labour and parts
    • Permit and approval process handled for you

    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

    400+
    Positive reviews on:
    Superior Plumbing reviews google my business St. Thomas
    Superior Plumbing reviews homestars St. Thomas
    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

    Satisfaction

    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
    Cade Fillion

    Called for a septic tank replacement and loved the realistic 2-hour window. Dan arrived right on time and was very professional. Pricing was transparent and exactly as quoted. Great company.

    Feb 22, 2026
    Bryson Dagenais

    Our septic tank replacement was handled professionally from the initial call to the final cleanup. Tyler brought all the necessary parts and finished in one visit. Upfront pricing and very fair.

    Mar 14, 2026
    Byron Emond

    Since I know very little about plumbing, I relied on Sean to guide me through our septic tank replacement. He was patient and gave me options for different tank sizes. I felt genuinely looked after.

    Mar 6, 2026
    Bryce Chenier

    Jason was extremely thorough with our septic tank replacement. Before leaving, he ran multiple tests to confirm the system was draining correctly and showed me the before-and-after results.

    Jan 8, 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
    or
    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

    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

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    hours of operation: Monday - Sunday 12:00 AM -11:59 PM
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