Drain Unblocking and Drainage Services in Cornwall

Blocked drains, flooding, or a drainage emergency? Our Cornwall engineers respond in 1 to 2 hours, 24 hours a day. No call-out fee, fixed pricing, and a 5-year guarantee on every repair.

No Call-Out Fees
Fixed-Price Quotes
Fully Insured
24/7 Emergency Response
5.0 ★
Google Reviews
1-2hr
Response Time
£0
Call-Out Fee
24/7
Available

Cornwall’s Drain Unblocking and Cleaning Specialists

Clear Stream Drainage Solutions is a locally owned company covering the whole of Cornwall for drain unblocking, drain cleaning, CCTV surveys, repairs, and septic tank maintenance. We work with homeowners, landlords, and businesses across the county.

From Truro and Falmouth to Bude and Launceston, our team reaches you fast, diagnoses the root cause, and fixes the problem properly the first time. Every job is backed by a 5-year guarantee and a fixed-price quote agreed before work begins.

10% off for new customers. First time using Clear Stream? Mention this offer when you get in touch.

Get a Quote

Get Your Free Quote Today

    Posted on Google Google
    Lisa profile picture
    Lisa
    Google star 1Google star 2Google star 3Google star 4Google star 5Trustindex verifies that the original source of the review is Google.
    Faultless from start to finish. I contacted the company in the morning and within hours, Josh arrived. This was a problem that others had been out to but couldn't fix and yet on the same day, Josh had identified the problem and fixed it. Ontop of this, it was down to the care and diligence of Josh that what was initially thought to be a bigger problem, was able to be dealt with on the same day. I can sometimes feel uneasy when others are doing jobs in the house but this was not the case with Josh who was extremely professional, courteous and a pleasure to have in the house. I would not only recommend Josh but think that anyone would be crazy to go elsewhere. Thank you.
    Posted on Google Google
    Laura Jessett profile picture
    Laura Jessett
    Google star 1Google star 2Google star 3Google star 4Google star 5Trustindex verifies that the original source of the review is Google.
    Friendly and super helpful, highly recommend!
    Posted on Google Google
    Dawn stangroom profile picture
    Dawn stangroom
    Google star 1Google star 2Google star 3Google star 4Google star 5Trustindex verifies that the original source of the review is Google.
    Amazing here with in 2 hours job done took all the pressure and worry out of manhole cover lifting with sewage thank you josh
    Posted on Google Google
    Mandy Phillips profile picture
    Mandy Phillips
    Google star 1Google star 2Google star 3Google star 4Google star 5Trustindex verifies that the original source of the review is Google.
    Josh was polite and knowledgeable and dedicated to the task. He successfully identified a cracked pipe and unblocked another waste pipe. All in all a top bloke and a top job
    Posted on Google Google
    Georgi Morton profile picture
    Georgi Morton
    Google star 1Google star 2Google star 3Google star 4Google star 5Trustindex verifies that the original source of the review is Google.
    Josh was fantastically efficient, attending our blocked drain within 24 hours and clearing it out. He was also able to use his camera to check the integrity of the pipe and cause of the blockage. 10/10 would recommend!
    Posted on Google Google
    Becky Parker profile picture
    Becky Parker
    Google star 1Google star 2Google star 3Google star 4Google star 5Trustindex verifies that the original source of the review is Google.
    Josh & Logan were great, cleared my blocked drain with the minimum of fuss and in super quick time. Not easy given that there is no access to the back of my house as it's mid-terraced and everything had to come through the house. Would definitely recommend.
    Posted on Google Google
    Ian profile picture
    Ian
    Google star 1Google star 2Google star 3Google star 4Google star 5Trustindex verifies that the original source of the review is Google.
    Excellent fast service. Very polite and professional.
    Posted on Google Google
    Rachel Jones profile picture
    Rachel Jones
    Google star 1Google star 2Google star 3Google star 4Google star 5Trustindex verifies that the original source of the review is Google.
    I recently used Clear Stream for a problem with a septic tank and could not recommend them more highly. From the initial call out onwards they were knowledgeable, professional, helpful and conscientious. They originally attended as an emergency call out. Despite it being the May bank holiday they arrived within an hour and charged a really reasonable price for an emergency service. When it became clear that the problem was significant and we would need a new tank they installed a temporary fix then provided a detailed quotation for the major works, including answering insurers’ questions. The new tank was installed over a two day period in which they work really efficiently, while keeping me updated and informed about every stage. The guarantees for their work are reassuring and they made a stressful situation so much easier. I would highly recommend them to anyone.
    Posted on Google Google
    Gina Martin profile picture
    Gina Martin
    Google star 1Google star 2Google star 3Google star 4Google star 5Trustindex verifies that the original source of the review is Google.
    Josh - what a superstar. The only reason I haven’t given 5 stars is … I will have to pay the bill. Josh really put me at ease. I have been stressing about the blocked drain for two weeks. He got on with the job. Kept me advised all the way through the work. Would definitely recommend him. THANK YOU JOSH!!!
    Posted on Google Google
    Natasha Ratcliffe profile picture
    Natasha Ratcliffe
    Google star 1Google star 2Google star 3Google star 4Google star 5Trustindex verifies that the original source of the review is Google.
    Have had Josh over a few times now, for different reasons and are very happy with his work. Good communication, trustworthy, and straight to it, knows his stuff, was happy to talk it through and explain. Gave quotes ahead of work.
    Verified by Trustindex
    Trustindex verified badge is the Universal Symbol of Trust. Only the greatest companies can get the verified badge who has a review score above 4.5, based on customer reviews over the past 12 months. Read more

    Drainage Solutions for Every Problem in Cornwall

    A full range of drainage services across Cornwall, delivered by certified engineers with the equipment to resolve any issue on the first visit.

    septic tank maintenance near me
    service_box_3

    Septic Tank Maintenance

    Scheduled servicing and surveys for rural Cornwall properties.

    Septic Tank Maintenance Cornwall
    CCTV Drain Survey
    service_box_1

    CCTV Drain Surveys

    Accurate diagnosis without excavation, with HD video reports.

    CCTV Drain Surveys Cornwall
    ROUTINE DRAIN MAINTENANCE
    service_box_1

    Drain Relining

    No-dig repair that reinforces pipes from within for a permanent fix.

    Drain Relining Cornwall
    PIPE DE SCALING
    service_box_1

    Pipe De-scaling

    Removes hardened deposits to restore flow and extend pipe life.

    Pipe Descaling Cornwall
    Routine Drain Maintenance
    service_box_1

    Drain Jetting

    High-pressure jetting to clear stubborn blockages and restore full flow.

    Drain Jetting Cornwall
    Why Choose Us

    Why Cornwall Trusts Our Drainage Company

    Clear Stream is a trusted, locally owned drainage company serving homes and businesses across Cornwall.

    Our engineers know the challenges of coastal erosion, granite foundations, rural pipe networks, and narrow access sites. Every drainage issue gets diagnosed at the root cause, not patched with a temporary fix.

    What you get with Clear Stream:
    • No call-out fees and no hidden charges
    • Fixed-price quotes agreed before work begins
    • 24/7 emergency response, 365 days a year
    • Average 1 to 2 hour response time across Cornwall
    • 5-year guarantee on all repairs
    • Fully insured, certified, and highly trained engineers
    • Locally owned and operated
    All repairs backed by a 5-year guarantee.

    How We Clear Blocked Drains in Cornwall

    A clear, four-step process from first call to lasting solution.

    Call, text, or WhatsApp to tell us what's happening. We respond within minutes to arrange an engineer visit.

    Our drain engineer arrives promptly, fully equipped with CCTV cameras and the latest tools. We locate the exact cause of the issue, explain what we find, and discuss your options clearly before any work begins.

    You receive a clear, fixed-price quote with no obligation and no hidden costs. We only proceed when you are fully happy with the plan.

    We complete the work to the highest standard, test everything thoroughly, and leave the area clean and tidy. Every job is backed by our five-year guarantee for lasting peace of mind.

    With Clear Stream Drainage Solutions, you always know what to expect - a simple process, transparent pricing, and results that last.

    Find Us

    Based in Falmouth, Serving All of Cornwalll

    Get in Touch

    Frequently Asked Questions

    Stop using sinks, toilets, and washing machines connected to the blocked drain to prevent overflow. Do not use chemical drain cleaners, as these can damage pipes and push blockages deeper. Call Clear Stream on 01872 222555 for 24/7 rapid response, we reach most Cornwall locations within 1 to 2 hours.

    Most blockages are caused by grease, wipes, hair, food waste, and foreign objects. In Cornwall's older properties, collapsed clay pipes, tree root ingress, and shifting ground from coastal erosion are also common. A CCTV drain survey identifies the exact cause so we can fix it properly, not just clear it temporarily.

    Our engineers respond 24 hours a day, 365 days a year. We reach most Cornwall locations within 1 to 2 hours of your call, including Truro, Falmouth, Newquay, St Austell, Penzance, and surrounding areas. Call 01872 222555 for immediate response.

    We charge no call-out fee and provide a fixed-price quote before any work begins. Pricing depends on the type and location of the blockage, access, and the equipment required. You only pay once you have agreed the quote in writing.

    If the blockage is within your property boundary, it is your responsibility. If it is in a shared or public sewer, South West Water is responsible. Our engineers can identify which applies during the initial visit and advise you on the next steps.

    Minor blockages in sinks or toilets can sometimes be cleared with a plunger. Chemical drain cleaners should be avoided as they damage pipes and rarely solve the underlying problem. For external drains, recurring blockages, or anything beyond a simple clog, call a certified drainage engineer to diagnose the root cause.

    Yes. We work with homeowners, landlords, property managers, and businesses across Cornwall. Our services include one-off emergency callouts, scheduled maintenance contracts, and planned CCTV surveys for commercial premises.

    Yes. Every repair is backed by our 5-year guarantee. We also provide a detailed report on work completed and advice on preventing future issues.

    Get Your Free Quote Today

      ShapeBlog and latest news.

      Our Blog

      September 4, 2026

      How Often Should Drains Be Cleaned? A Complete Guide for Homeowners

      How Often Should Drains Be Cleaned? A Complete Guide for Homeowners Most people don't think about their drains until something goes wrong. A slow-draining sink, unpleasant

      August 27, 2026

      What to Do If Your Toilet Overflows: A Step-by-Step Guide

      An overflowing toilet can quickly turn into a messy and stressful situation. Whether the toilet is filling up after flushing, water is rising towards the rim,

      August 19, 2026

      CCTV Drain Survey Cost Guide: How Much Does a Drain Survey Cost

      If you're searching for CCTV drain survey cost, you're probably trying to work out how much you should expect to pay before booking a drainage survey.