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Professional Septic Tank Cleaning & Maintenance

Septic tanks are one of our main specialities. We cover it all, from repairs and maintenance to upgrading your old septic tank to a sewage treatment plant.

We have over 25 years of experience and offer annual service and maintenance packages. We can keep your waste systems clean and problem-free, all year round.

If you have concerns regarding your system, we are happy to answer any questions that will give you peace of mind.

Septic tank being cleaned

Why choose us to clean your septic tank?

Our team specialise in septic tanks and sewage treatment plants, supporting local homeowners and businesses across the West Midlands for over 25 years.

Our technicians are highly experienced and have specialised knowledge regarding the maintenance of sewage and drainage systems. Not only can we empty and clean your septic tanks, but we can also check the entire system is safe and legal.

Recent changes, like the General Binding Rules 2020, might require alterations to your existing septic tanks. Our team can help to advise on your options and ensure your home is safe, legal and problem-free.


Get in touch

Contact our friendly and professional team via form, phone or email for any drainage issues you may have.

From blocked drains to septic tank repairs and replacements, we're here to help. We have over 25 years of experience and offer 24/7 emergency callouts.


I always find the staff at Cotswold Drainage very polite & helpful, they always provide an excellent service & they do try and come out the same day. I would defiantly recommend using their services.
- Bowling Green Court
Cotswold Drainage cleared a blocked drainage pipe from our septic tank. Not the easiest access and a combination of pipe and soakaway to investigate. Adrian was excellent - prompt, friendly and willing to go the extra yard when things were looking difficult. Very pleased with the service.
- Geoff Smith
Used this company a couple of times now. Staff always great and they turn up when they say. Never had any problems, work always done properly. Would recommend.
- Rachel Godfrey
Very knowledgeable and polite, quickly cleared the drain and washed it out.
- Alan Grove
A quick and professional service. Russell the operator soon had our problem solved
- Donald Gilder
From start to finish Nikki and the team were brilliant . Quotes through quickly and house buying drainage survey results through in a couple days. Would highly recommend this company. Thank you all.
- Carrie Crinage
Professional and reliable with first class service, definitely recommend. We had an issue with an ACO drain in the recent torrential storms which caused flooding in our integral garage. Having been flooded in two previous properties before this occasion and now being paranoid about water, we wanted to rectify the situation quickly to mitigate any future problems. We searched the Internet looking for a professional, trustworthy company who we could rely upon to fix the issue quickly and provide us with peace of mind. We found and researched Cotswold Drainage, particularly taking into account the customer feedback and first class reviews in our decision. We couldn't be more delighted from our initial contact with Nikki, two site visits one by Dave to review the issue quickly followed up by Adrian for a camera inspection, to Keith who carried out the work over 3 days in the most awful of weather (rain, drizzle and bitterly cold). Keith worked flat out every day at the same time always professional, cheerful and courteous. We cannot fault them and and would highly recommend them.
- Melanie Nash
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    Have an emergency? Or looking for a maintenance or quote?

    Why is septic tank cleaning important?

    Maintaining a septic tank is not just about avoiding the unpleasant odours from your garden. It’s a critical aspect of home maintenance that impacts your health, property value, and the environment. A neglected septic tank can turn your dream home into a nightmare quicker than you might think.

    Regular cleaning extends the lifespan of your septic system. By sticking to a routine cleaning schedule, you reduce the need for costly repairs and replacements. The accumulation of sludge and scum is kept in check, which means fewer mechanical failures and a longer-lasting system.

    Neglected septic tanks can lead to environmental hazards. Did you know that polluted groundwater can stem from an improperly maintained septic tank? When these systems fail, the untreated waste seeps into the soil, ultimately contaminating nearby water bodies and posing health risks to your family and community.

    Clean septic tanks prevent blockages and backups. There's nothing worse than a slow drain or the foul stench of sewage backup in your home. Regular cleaning minimises these issues, keeping everything flowing smoothly and your house smelling fresh.

    Properly maintained tanks protect your property’s value. If you're planning to sell your house, prospective buyers will appreciate a well-looked-after septic system. It’s a sign of a responsible homeowner, which adds value to your property in their eyes.

    Drain unblocking process

    How are septic tanks are cleaned?

    The first step is always a comprehensive inspection. Our technicians will check for sludge build-up and any evident problems. This initial check helps establish how much work is needed and if there are any immediate repairs required.

    Next, we pump out the waste using a vacuum truck.  These are equipped to handle both solid and liquid waste, ensuring your tank is completely emptied. This process helps reduce the chance of blockages and keeps your system functioning seamlessly.

    High-pressure water jets are then used to clean the interior surfaces. These powerful cleaners scrub the tank, making sure all remaining residues are blasted off, leaving it spick and span.

    Once the inside is clean, it’s time to check for any cracks or leaks. Any structural damage identified is noted and reported for further action. This step is crucial for preventing leaks that could lead to severe environmental hazards.

    Our team adhere to eco-friendly practices and ensure all waste is taken to approved sites for disposal. This action not only keeps your conscience clean but also complies with legal requirements.

    Drain unblocking services

    How can we help?

    As a leading drainage company, we offer a variety of services with Septic Tank problems, just some of our services include:

    • Installation
    • Removal
    • Conversion of a tank to a Treatment Plant
    • Reports and Investigations
    • Sorting out soakaway problems

    At Cotswold Drainage we offer a 25-year guarantee along with an annual service and maintenance contract so make sure you contact us for your new installation systems!

    Cotswold Drainage Engineer

    What we offer

    Here at Cotswold Drainage, our team have over 25 years’ experience and the expertise guaranteed to sort your problem quickly with minimum of fuss, leaving you more than satisfied.

    We offer a 6-month warranty, along with a free drain camera health check and a guarantee that you will receive follow-ups during and after your 6-month warranty.

    We operate a large fleet of vehicles, equipped with specialist equipment for any situation, including our high-power jetting system for removing blockages & cleaning, and also CCTV for on-site surveying of the problem or damaged drainage systems.

    Don’t just take our word for it, read our incredible reviews left by our valued customers

    I always find the staff at Cotswold Drainage very polite & helpful, they always provide an excellent service & they do try and come out the same day. I would defiantly recommend using their services.
    - Bowling Green Court
    Cotswold Drainage cleared a blocked drainage pipe from our septic tank. Not the easiest access and a combination of pipe and soakaway to investigate. Adrian was excellent - prompt, friendly and willing to go the extra yard when things were looking difficult. Very pleased with the service.
    - Geoff Smith
    Used this company a couple of times now. Staff always great and they turn up when they say. Never had any problems, work always done properly. Would recommend.
    - Rachel Godfrey
    Very knowledgeable and polite, quickly cleared the drain and washed it out.
    - Alan Grove
    A quick and professional service. Russell the operator soon had our problem solved
    - Donald Gilder
    From start to finish Nikki and the team were brilliant . Quotes through quickly and house buying drainage survey results through in a couple days. Would highly recommend this company. Thank you all.
    - Carrie Crinage
    Professional and reliable with first class service, definitely recommend. We had an issue with an ACO drain in the recent torrential storms which caused flooding in our integral garage. Having been flooded in two previous properties before this occasion and now being paranoid about water, we wanted to rectify the situation quickly to mitigate any future problems. We searched the Internet looking for a professional, trustworthy company who we could rely upon to fix the issue quickly and provide us with peace of mind. We found and researched Cotswold Drainage, particularly taking into account the customer feedback and first class reviews in our decision. We couldn't be more delighted from our initial contact with Nikki, two site visits one by Dave to review the issue quickly followed up by Adrian for a camera inspection, to Keith who carried out the work over 3 days in the most awful of weather (rain, drizzle and bitterly cold). Keith worked flat out every day at the same time always professional, cheerful and courteous. We cannot fault them and and would highly recommend them.
    - Melanie Nash
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