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Sewage Waste Water Treatment Services

Do you have a septic tank or sewage treatment plant? Whether you need it emptied, cleaned, upgraded, repaired or replaced, we're here to help!

Our friendly and experienced team have been supporting homeowners and businesses across the West Midlands for over 25 years.

A Cotswold Drainage van ready to fix some blocked drains

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.


A great, straightforward service, thank you! Customer service is excellent - there was a problem with the date we originally booked, but it was quickly resolved by Richard, and he was very apologetic. The engineer who came out was Adrian. He was on time, called ahead of arrival as requested, and was very polite. Did a great job. Thanks guys!
- Zoe - The Wild Oven
Turned up when they said they would. Quickly diagnosed the issue. Have used before and can't fault them.
- Pete English
Good service and quality of work
- Bill Baker
Excellent service, turned up on the day and on time, polite and professional team
- Mark Stevens
I was impressed not only by the speed and professionalism of the work done to install a new septic tank, but by the considerate friendliness of those who carried it out and of those conducting correspondence about the job.
- Robin Gilbert
From the telephonist to the operative, Cotswold Drainage was helpful, flexible, and professional in its work. It arrived on time and went out of its way to show excellent camera footage of the drains.
- Geoffrey
Great service. Requested a treatment plant survey for a house we were purchasing before exchanging contracts. They liaised with the seller direct to arrange a convenient date and time. Report was emailed to us the next day. They replied to queries on the report very promptly and also other queries we had with the system and how it worked. Quick service throughout, would definitely recommend.
- Stuart Ludlow
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    Our top tips

    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

    A great, straightforward service, thank you! Customer service is excellent - there was a problem with the date we originally booked, but it was quickly resolved by Richard, and he was very apologetic. The engineer who came out was Adrian. He was on time, called ahead of arrival as requested, and was very polite. Did a great job. Thanks guys!
    - Zoe - The Wild Oven
    Turned up when they said they would. Quickly diagnosed the issue. Have used before and can't fault them.
    - Pete English
    Good service and quality of work
    - Bill Baker
    Excellent service, turned up on the day and on time, polite and professional team
    - Mark Stevens
    I was impressed not only by the speed and professionalism of the work done to install a new septic tank, but by the considerate friendliness of those who carried it out and of those conducting correspondence about the job.
    - Robin Gilbert
    From the telephonist to the operative, Cotswold Drainage was helpful, flexible, and professional in its work. It arrived on time and went out of its way to show excellent camera footage of the drains.
    - Geoffrey
    Great service. Requested a treatment plant survey for a house we were purchasing before exchanging contracts. They liaised with the seller direct to arrange a convenient date and time. Report was emailed to us the next day. They replied to queries on the report very promptly and also other queries we had with the system and how it worked. Quick service throughout, would definitely recommend.
    - Stuart Ludlow
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