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24/7 Emergency Call Out

Septic Tank Repairs

When your septic tank system breaks, it’s not just a nuisance. It’s a potential threat to your home, health, and the environment.

Whether it's a blockage, overflow, or leak, professional help ensures the job gets done right. At Cotswold Drainage, we've been repairing septic tanks for over 25 years.

A Cotswold Drainage van ready to fix some blocked drains

Why choose us for septic tank repairs?

Our technicians bring years of hands-on experience to every job. They’ve seen and solved a wide array of septic tank problems, from minor leaks to major blockages, ensuring your system runs smoothly.

Thorough inspections are the backbone of our service. We don’t just address visible issues; we dig deeper to uncover potential problems that could cause future headaches.

We can be onsite within 24 hours to fix your blocked drains, or often same-day if you book with us before 2pm.


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?

    Signs of a Faulty Septic Tank

    Recognising the symptoms of a failing septic tank early on can save you from repairs and unpleasant living conditions. Here are the tell-tale signs to watch out for:

    Unpleasant Odours

    One of the most obvious signs is a strong, foul smell around the septic tank area or drain field. This usually indicates that the waste isn't breaking down properly. If so, this needs immediate professional intervention.

    Slow Drains

    Ever noticed your sinks and toilets draining slower than usual? This could signal a problem with your septic system. Slow drains often mean that there's a blockage or the tank is near capacity. We can diagnose and resolve these issues quickly.

    Slow drains

    Lush Grass

    While green, lush grass might seem appealing, it could be a red flag if it’s concentrated around your drain field. This unusual growth suggests that your septic tank is leaking, enriching the soil with nutrients meant to stay confined.

    Standing Water

    Pools of water in your garden, particularly near the septic tank, are never a good sign. Standing water indicates that your system is failing and unable to handle wastewater properly, requiring immediate expert attention.

    Gurgling Sounds

    Strange gurgling noises emanating from your plumbing can indicate a faulty septic tank. This often means there’s a backup in the system, and without prompt repair, it could lead to more significant issues.

    Emptying a septic tank

    We have an amazing team to help get your drains up and running smoothly.

    Our friendly, reliable, and expert team will always be on hand to provide you with the necessary drainage solutions. Working hard to get the job done as quickly as possible with the utmost efficiency and care, so that your life can get back to normal. There is nothing more important to us than keeping you in the loop, our engineers will keep you updated sending you reminders, and checking our visit will still be convenient to your needs.

    Cotswold Drainage Engineer

    Common Septic Tank Issues

    Septic tanks play a vital role in managing home waste, but they aren't without issues. Knowing what to look for and how professionals tackle them can save you from a world of headache.

    Septic Tank Blockages

    Typically, blockages occur when solid waste and grease accumulate, obstructing the drainage systems. These blockages can cause backups in your sinks, toilets, and drains. We use high-pressure water jetting tools to clear these blockages effectively, ensuring your system runs smoothly again.

    Overflowing Septic Tanks

    Overflowing tanks are usually the result of excessive water usage or a poorly designed system. When a tank overflows, untreated waste can seep into your garden, causing environmental and health risks.

    Septic tank cleaning

    Damaged Pipes

    Cracked or broken pipes pose significant issues, leading to leaks and system inefficiencies. Pipe damage often necessitates digging up the affected area, replacing the damaged pipe sections, and ensuring the entire system is leak-free.

    Tree Roots

    Tree roots can be a major nuisance, infiltrating and blocking septic systems. We can locate the root intrusion points using advanced cameras and remove the roots with specialised cutting tools. We might also recommend relocating trees or installing root barriers to prevent future problems.

    Tank Leaks

    Leaky tanks can cause hazardous waste to seep into the ground, posing environmental threats and property damage. We use durable sealing materials and techniques to patch up leaks, restoring the integrity of your septic tank system.

    Septic tank inspection

    Why choose Cotswold Drainage?

    Cotswold Drainage is CHAS-approved for health and safety, a member of Constructionline and has 25+ years of experience. You can trust us to maintain and unblock your drainage systems across commercial and domestic properties with minimal disruption, utilising the latest high-tech equipment as well as follow-up visits during and after your 6-month warranty.

    Why choose Cotswold Drainage for blocked drains?

    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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