029 2271 5920
A picture of a blocked drain

Drainage in South of Wales

Your local experts with 30 years' experience providing fast, reliable drainage solutions across Pentre and South Wales. We handle everything from emergency blocked drains to comprehensive repairs for domestic and commercial clients.

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Available 24/7 for all your Drainage emergencies. Our expert team is just a phone call away.

Open drain or manhole with water and debris.

Expert Drainage Services in South Wales: Reliable Solutions by Drain King

For 30 years, Drain King has been the trusted name in professional drainage services across South Wales. Based proudly in Pentre, at the heart of the Rhondda, we offer high-quality, timely, and efficient solutions for every drainage need. Whether you're a homeowner with a blocked toilet or a business facing a major sewer issue, our experienced team provides clear communication and lasting repairs. We are fully insured with comprehensive Public Liability, and our 24/7 emergency call-out service means we're always here when you need us most. We are your local experts, ready to tackle any drain challenge with professionalism and exceptional customer service.

Why Choose Us?

Unblocking and Cleaning Your Drains Fast

From a stubbornly blocked kitchen sink to a major sewer obstruction, Drain King provides a rapid and effective drain unblocking service throughout South Wales, including Cardiff, Swansea, and the entire Rhondda Cynon Taf. We don't just clear the blockage; we perform thorough drain cleaning to help prevent immediate reoccurrence. Using state-of-the-art high-pressure water jetting, also known as hydro-jetting, our powerful equipment blasts through common culprits like fat, grease, scale, and wet wipes, restoring full flow to your drainage system. For more delicate internal pipes, our team expertly utilises electro-mechanical cleaning tools. If you're experiencing a gurgling toilet, a slow-draining shower, or unpleasant foul smells from an outside drain, trust our team to diagnose and solve the problem quickly. We handle domestic, commercial, and industrial blockages of any scale, ensuring peace of mind for every customer.

24/7 Emergency Drain Unblocking

High-Pressure Water Jetting

CCTV Drain Surveys & Inspections

No-Dig Drain Repairs & Relining

Septic Tank & Drainage Installations

Local Experts Covering South Wales

Outdoor drain gully with pipes

30+

Years' Experience

24/7

Emergency Call-Outs

30 Years of Drainage Experience

With three decades in the industry, we've solved every drainage issue imaginable. We use advanced tech like CCTV surveys and high-pressure jetting for precise, effective solutions.

24/7 Emergency Call-Outs

Drainage emergencies don't wait. Our team is available day and night across South Wales. We are fully insured with comprehensive Public Liability for your peace of mind.

Local South Wales Experts

Based in Pentre, we are your trusted drainage specialists. We proudly serve communities across the Rhondda Valleys, Cardiff, Swansea, Newport, and all surrounding areas.

worker
working small

15+

Years Experience

Who We Are

Pinpointing Problems with Advanced CCTV Drain Surveys

Eliminate the guesswork from your drainage problems with our advanced CCTV drain survey technology, available across South Wales, from Bridgend to Newport. We use state-of-the-art, flexible fibre-optic cameras to navigate deep into your pipework, providing a crystal-clear, real-time view of your drains' condition. This non-invasive diagnostic tool allows us to accurately pinpoint the exact location and cause of any issue, including cracks, fractures, collapsed sections, stubborn blockages, invasive root ingress, or even pest intrusion. We provide surveys for various needs, from essential Homebuyer Drain Surveys to check a property's drainage before you buy in Cardiff or Merthyr Tydfil, to Build-Over Surveys for extensions compliant with Dŵr Cymru Welsh Water standards, and detailed Insurance Reports to validate a claim. Following the inspection, you'll receive a comprehensive report, a clear explanation of our findings, and a no-obligation quote for any necessary repairs. We are the industry experts in drain camera inspections.

Monday-Sunday

Open 24 Hours

Call Us Now

029 2271 5920

Areas We Provide Drainage Services

Our expert Drainage services are available across Rhondda Cynon Taf. Fast response times guaranteed.

Abercarn

Abercarn

Abercarn

Abercarn

Abercynon

Abercynon

Abercynon

Abercynon

Aberdare

Aberdare

Aberdare

Aberdare

Aberhonddu / Brecon

Aberhonddu / Brecon

Aberhonddu / Brecon

Aberhonddu / Brecon

Aberpennar / Mountain Ash

Aberpennar / Mountain Ash

Aberpennar / Mountain Ash

Aberpennar / Mountain Ash

Abersychan

Abersychan

Abersychan

Abersychan

Abertawe / Swansea

Abertawe / Swansea

Abertawe / Swansea

Abertawe / Swansea

Abertyleri / Abertillery

Abertyleri / Abertillery

Abertyleri / Abertillery

Abertyleri / Abertillery

Bargoed / Bargod

Bargoed / Bargod

Bargoed / Bargod

Bargoed / Bargod

Barri / Barry

Barri / Barry

Barri / Barry

Barri / Barry

Blaenavon

Blaenavon

Blaenavon

Blaenavon

Brynmawr

Brynmawr

Brynmawr

Brynmawr

Caerdydd / Cardiff

Caerdydd / Cardiff

Caerdydd / Cardiff

Caerdydd / Cardiff

Caerffili / Caerphilly

Caerffili / Caerphilly

Caerffili / Caerphilly

Caerffili / Caerphilly

Caerllion / Caerleon

Caerllion / Caerleon

Caerllion / Caerleon

Caerllion / Caerleon

Crickhowell

Crickhowell

Crickhowell

Crickhowell

Cwmbrân

Cwmbrân

Cwmbrân

Cwmbrân

Ferndale

Ferndale

Ferndale

Ferndale

Glyn Ebwy / Ebbw Vale

Glyn Ebwy / Ebbw Vale

Glyn Ebwy / Ebbw Vale

Glyn Ebwy / Ebbw Vale

Glyn-Nedd / Glyn-Neath

Glyn-Nedd / Glyn-Neath

Glyn-Nedd / Glyn-Neath

Glyn-Nedd / Glyn-Neath

Gorseinon

Gorseinon

Gorseinon

Gorseinon

Llandeilo

Llandeilo

Llandeilo

Llandeilo

Llanelli

Llanelli

Llanelli

Llanelli

Llanilltud Fawr / Llantwit Major

Llanilltud Fawr / Llantwit Major

Llanilltud Fawr / Llantwit Major

Llanilltud Fawr / Llantwit Major

Llantrisant

Llantrisant

Llantrisant

Llantrisant

Llanymddyfri / Llandovery

Llanymddyfri / Llandovery

Llanymddyfri / Llandovery

Llanymddyfri / Llandovery

Loughor

Loughor

Loughor

Loughor

Maesteg

Maesteg

Maesteg

Maesteg

Merthyr Tudful / Merthyr Tydfil

Merthyr Tudful / Merthyr Tydfil

Merthyr Tudful / Merthyr Tydfil

Merthyr Tudful / Merthyr Tydfil

Nantyglo

Nantyglo

Nantyglo

Nantyglo

Neath

Neath

Neath

Neath

Newport

Newport

Newport

Newport

Penarth

Penarth

Penarth

Penarth

Pencoed

Pencoed

Pencoed

Pencoed

Pen-Y-Bont Ar Ogwr / Bridgend

Pen-Y-Bont Ar Ogwr / Bridgend

Pen-Y-Bont Ar Ogwr / Bridgend

Pen-Y-Bont Ar Ogwr / Bridgend

Pontardawe

Pontardawe

Pontardawe

Pontardawe

Pontarddulais

Pontarddulais

Pontarddulais

Pontarddulais

Pontllanfraith

Pontllanfraith

Pontllanfraith

Pontllanfraith

Pontycymer

Pontycymer

Pontycymer

Pontycymer

Pontypridd

Pontypridd

Pontypridd

Pontypridd

Pont-Y-Pŵl / Pontypool

Pont-Y-Pŵl / Pontypool

Pont-Y-Pŵl / Pontypool

Pont-Y-Pŵl / Pontypool

Porth

Porth

Porth

Porth

Porthcawl

Porthcawl

Porthcawl

Porthcawl

Port Talbot

Port Talbot

Port Talbot

Port Talbot

Rhisga / Risca

Rhisga / Risca

Rhisga / Risca

Rhisga / Risca

Rhondda

Rhondda

Rhondda

Rhondda

Rhydaman / Ammanford

Rhydaman / Ammanford

Rhydaman / Ammanford

Rhydaman / Ammanford

Rhymni / Rhymney

Rhymni / Rhymney

Rhymni / Rhymney

Rhymni / Rhymney

Talbot Green

Talbot Green

Talbot Green

Talbot Green

Talgarth

Talgarth

Talgarth

Talgarth

Tonypandy

Tonypandy

Tonypandy

Tonypandy

Trecceln / Newbridge

Trecceln / Newbridge

Trecceln / Newbridge

Trecceln / Newbridge

Tredegar

Tredegar

Tredegar

Tredegar

Treharris

Treharris

Treharris

Treharris

Treherbert

Treherbert

Treherbert

Treherbert

Treorci / Treorchy

Treorci / Treorchy

Treorci / Treorchy

Treorci / Treorchy

Usk

Usk

Usk

Usk

Y Blaenau / Blaina

Y Blaenau / Blaina

Y Blaenau / Blaina

Y Blaenau / Blaina

Y Bont-Faen / Cowbridge

Y Bont-Faen / Cowbridge

Y Bont-Faen / Cowbridge

Y Bont-Faen / Cowbridge

Y Coed Duon / Blackwood

Y Coed Duon / Blackwood

Y Coed Duon / Blackwood

Y Coed Duon / Blackwood

Y Fenni / Abergavenny

Y Fenni / Abergavenny

Y Fenni / Abergavenny

Y Fenni / Abergavenny

Ystradgynlais

Ystradgynlais

Ystradgynlais

Ystradgynlais

Ystrad Mynach

Ystrad Mynach

Ystrad Mynach

Ystrad Mynach

Outdoor manhole cover on grass verge

Installing New Drainage Systems and Septic Tanks

Drain King offers professional drainage installation services for new builds, property extensions, and system upgrades across South Wales. Our expertise covers all aspects of drainage groundwork, ensuring your new system is efficient, reliable, and fully compliant with current building regulations and local water authority standards. We specialise in the installation of Septic Tanks and Wastewater Treatment Plants for properties not connected to the mains sewer, ensuring they meet the latest 'General Binding Rules'. Our services also include designing and fitting effective Soakaways, installing robust surface water channels like Aco Drains, and laying new foul and surface water drainage pipes. We manage every stage, from the initial excavation to the final connection, including handling complex Sewer Connections and navigating build-over agreements with local authorities, providing complete solutions for your needs.

Overflowing outdoor drain

Areas We Cover

Based in the heart of the Rhondda in Pentre, Drain King proudly serves South Wales. Our local experts cover a 30-mile radius, including Rhondda Cynon Taf, Cardiff, Swansea, Newport, Bridgend, and all surrounding communities.

029 2271 5920

Repairing Drains with Minimal Disruption No-Dig Solutions

A damaged or collapsed drain doesn't always mean extensive excavation of your garden or driveway. Drain King specialises in modern, non-invasive "no-dig" drain repair solutions across our service areas, including Caerphilly and Swansea. For localised damage like cracks or holes, we expertly utilise Patch Lining (or resin patch repairs), where a resin-impregnated fibreglass patch is inserted into the pipe and cured in place, creating a strong, permanent seal. For longer sections of damaged pipe, we offer full Drain Relining, which creates a tough new pipe within the old one. These trenchless technologies are not only cost-effective but also significantly faster and cause minimal disruption compared to traditional excavation. Of course, for severely collapsed drains or when no-dig isn't suitable, we also provide expert excavation and replacement services, ensuring the job is done right every time.

FAQ

Frequently Asked Drainage Questions

Answers to common questions about our Drainage

Why is regular drainage maintenance so important?

Think of it as an MOT for your pipes. Regular maintenance is about prevention, not just reaction. By having our professional engineers periodically clean and inspect your system, you can catch small issues before they become major disasters. This simple, planned service helps you avoid the unexpected cost of emergency repairs, the hassle of a blocked toilet, and the damage that can be caused by an overflowing drain. A little proactive care goes a long way to ensuring your drains flow freely all year round.

What does a professional drainage maintenance service involve?

Our maintenance services are comprehensive. We don't just clear existing blockages; we work to prevent future ones. A typical maintenance visit from our experts can include high-pressure water jetting, which thoroughly cleans the inside of your pipes, blasting away the grease, scale, and debris that cause blockages. We can also use our advanced CCTV drain survey equipment to carry out a visual health check, inspecting the pipework for any early signs of damage or wear and tear. This gives you a clear picture of your drainage health.

How often do my drains need a professional check-up?

This depends on your property and its usage. For most domestic homes in areas like Cardiff or the Rhondda, we recommend a professional clean and check every 18 to 24 months. However, for commercial premises like restaurants, hotels, or industrial sites, the needs are far greater. These businesses often require a scheduled maintenance plan every three to six months to handle the high volume of waste and prevent blockages that could disrupt their operations. We can offer advice tailored to your specific needs.

Do you offer commercial drainage contracts?

Yes, we specialise in providing tailored drainage maintenance solutions for businesses across South Wales, from Swansea to Newport. We are the trusted drainage contractors for many commercial clients who cannot afford the downtime a blocked drain causes. We work with you to create a schedule that suits your business needs, offering a reliable service that keeps your drainage system in perfect working order with minimal disruption.

Is drain maintenance just for businesses?

Not at all. While essential for commercial properties, proactive drain care is a smart choice for any homeowner. You don't need a formal contract, but scheduling a periodic clean is one of the best things you can do for your domestic drainage system. Our experience shows that many of the emergency call-outs we attend for blocked drains could have been easily prevented with a bit of routine maintenance. It offers complete peace of mind.

How do I know if I need an emergency repair instead of maintenance?

Maintenance is for prevention, but if you're already experiencing problems, you need to act fast. Key warning signs include water draining very slowly from sinks and showers, gurgling sounds from the pipes, foul smells coming from your plugs or outside drains, or water rising in your toilet bowl. If you see any of these, it's no longer a maintenance issue—it's time to contact our experts for our 24/7 emergency unblocking and repair services.

What are the warning signs of a damaged or collapsed drain?

Several tell-tale signs suggest you might need a drain repair service. If you experience frequent blockages even after having them cleared, it often points to an underlying issue like a crack or displaced joint. Other common symptoms include persistent foul smells around your property, damp patches appearing on the ground, or even subsidence in your driveway or garden. Slow-draining sinks, toilets, and showers are also a classic indicator. If you notice any of these issues, the best course of action is to get a professional assessment.

Why do drain pipes crack or collapse?

Drain pipes can fail for a number of reasons, and with our 30 years of experience across South Wales, we’ve seen them all. Older properties often have traditional clay pipes which can become brittle and crack over time. Ground movement or subsidence can cause pipes to shift and joints to open up. One of the most common problems we encounter is tree root ingress, where roots force their way into pipes seeking water, causing significant damage. Sometimes, the cause is simply poor installation or damage from heavy vehicles driving over the pipework.

Can you repair my drain without digging up my garden?

Absolutely. In many cases, we can offer "no-dig" drain repair solutions, also known as trenchless repairs. This modern technology allows us to fix damaged pipes without the major disruption and cost of excavation. Using techniques like patch lining for localised cracks or full drain relining for longer sections of damage, we create a new, robust pipe inside the old one. This is our preferred method for drain repairs wherever possible as it's faster, cleaner, and protects your garden, patio, or driveway.

How does 'no-dig' drain relining work and is it a permanent fix?

Drain relining is a highly effective and long-lasting repair solution. The process involves inserting a flexible liner, impregnated with a special resin, into the damaged drain. Once it's in position, we inflate a bladder inside the liner, pressing it firmly against the walls of the original pipe. The resin then cures, or hardens, leaving behind a tough, seamless, and watertight new pipe. This isn't just a temporary patch; it's a permanent structural repair that is incredibly strong and resistant to future leaks or root ingress.

When is traditional drain excavation the only solution?

While we always aim to use no-dig technology first, there are situations where excavation is the only viable option. If a drain has completely collapsed, is severely displaced, or has backfalls (where the pipe isn't sloped correctly), a liner cannot fix the structural problem. In these instances, we have to dig down to the pipe to physically replace the damaged section. Our experienced team handles all excavation work efficiently and safely, ensuring the job is done right and the area is reinstated correctly afterwards.

How do you find the exact location of the damage in my drains?

We take the guesswork out of drain repairs by using advanced CCTV drain survey equipment. We feed a high-definition, flexible camera directly into your drainage system to get a clear, real-time view of the pipe's condition. This allows us to pinpoint the exact location and nature of any problem, from a small crack to a complete collapse or a blockage caused by tree roots. Our CCTV surveys provide all the information we need to recommend the most effective and cost-efficient repair service.

Is drain relining cheaper than digging the pipe up?

Often, yes. Drain relining can be a more cost-effective solution than traditional excavation. This is because it avoids the significant labour and costs associated with digging up and then reinstating surfaces like patios, driveways, or lawns. While the initial material cost for lining can seem high, the overall project cost is frequently lower due to the speed and efficiency of the service. We will always provide a clear quote based on our CCTV survey findings, outlining the best value solution for your specific issue.

What is the difference between a septic tank and a treatment plant?

This is a great question, especially for properties in rural areas of South Wales not connected to the main sewer. A septic tank is a simple system that separates solid waste from liquid waste. The liquid, called effluent, then flows into a soakaway or drainage field to be filtered naturally by the soil. A wastewater treatment plant is more advanced. It uses mechanical parts and bacteria to actively treat the waste to a much higher standard. This means the treated water is clean enough to be discharged directly into a stream or river, subject to an environmental permit. We have years of experience installing both systems and can advise on the best solution for your property.

Do I need planning permission for a new septic tank?

The rules can be complex, but we can guide you. The installation of a new septic tank or treatment plant usually falls under Building Regulations, and you will need to submit a Building Notice or a Full Plan Submission to your local council. Additionally, if you are creating a new discharge to a watercourse, you will need to comply with the General Binding Rules or apply for a permit from Natural Resources Wales. As your local drainage experts, we can advise on the requirements for your specific project, whether you're in the Vale of Glamorgan or the Brecon Beacons.

How does a soakaway actually work?

A soakaway is a clever, traditional solution for managing surface water from your roof or driveway. It's essentially a large, excavated pit, typically filled with rubble or modern plastic crates, which is then covered over. Rainwater is channelled into the soakaway, where it can collect and then slowly and safely ‘soak away’ into the surrounding ground. Before installing one, a professional percolation test is vital to check that the ground drains effectively. We take care of the entire process, from testing and design to excavation and installation.

Can you explain the 2020 septic tank rules?

Of course. The 'General Binding Rules' were updated in 2020. The most important change for homeowners is that you can no longer discharge wastewater from a septic tank directly into a river, stream, or ditch. If your system does this, you must upgrade it, either by replacing it with a modern wastewater treatment plant or by installing a proper drainage field (soakaway) for the wastewater to filter through. We specialise in offering compliant drainage solutions and can survey your current system to see if it meets the required standards.

How much does it cost to connect to the public sewer?

The cost of a new sewer connection varies significantly from job to job. There is no one-size-fits-all price. The final cost depends on several factors: the distance from your property to the main sewer, the depth we need to excavate, the ground conditions (for example, digging through rock is harder than soil), and whether we need to work on a public road or pavement, which requires specific permits. The best way to get an accurate figure is to contact us. We can conduct a survey and provide a clear, detailed, no-obligation quote for the work.

What are the common signs of a blocked drain?

The most obvious sign is water draining away very slowly from a sink, shower, or bath. You might also notice gurgling sounds from the plughole, unpleasant smells coming from inside or outside drains, or even rising water levels in your toilet. If you spot any of these, it’s best to get it looked at by a professional before it becomes a major problem.

Who is responsible for a blocked drain pipe?

Typically, you are responsible for the drains inside your property boundary. This includes the pipes from your house that connect to the public sewer. The local water authority, such as Dŵr Cymru Welsh Water, is usually responsible for the main public sewers, which are often located under the road or public land. If a shared drain that serves multiple properties is blocked, responsibility can vary. We can help you determine the location of the blockage with a CCTV survey.

What is the difference between drain cleaning and unblocking?

Unblocking is the process of removing a specific obstruction that is stopping the flow of water. Drain cleaning is a more comprehensive service. We use high-pressure water jetting to not only clear the blockage but also to scour the entire pipe wall, removing built-up grease, fat, scale, and debris. This thorough clean restores the full diameter of the pipe and helps prevent the problem from returning quickly.

Why would I need a CCTV drain survey?

A CCTV drain survey is the best way to see exactly what is happening inside your pipes without any need for excavation. It’s essential for diagnosing recurring problems, finding the precise location of a collapse or crack, or identifying tree root intrusion. We also highly recommend them for Homebuyer Drain Surveys to check the condition of a property's drainage system before you commit to buying.

Is 'no-dig' drain repair as good as traditional excavation?

For many types of damage, like cracks, holes, and displaced joints, no-dig technology is an exceptional solution. Drain relining and patch repairs create a new, tough, and seamless pipe within the old one. It is faster, less disruptive, and often more cost-effective than digging up your driveway or garden. It creates a permanent structural repair that is incredibly durable. For severely collapsed pipes, however, excavation remains the only viable option.

Do you offer services for commercial businesses?

Yes, absolutely. We provide a full range of drainage services for commercial and industrial clients across South Wales. This includes emergency call-outs for blocked toilets or kitchen drains in restaurants and offices, as well as planned preventative maintenance contracts to help businesses avoid costly disruption. We have the experience and equipment to handle any commercial drainage needs.

Still have questions? Contact our South of Wales experts today!

Call Us Now

Find Us Here

14 Margaret Street, Pentre, CF41 7DA

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Need Fast, Reliable Drainage Services in South Wales?

Our expert team, with over 30 years of experience, is available 24/7 for emergency call-outs and planned maintenance. Don't let a blocked drain disrupt your day!

Call Us Now: 029 2271 5920

24/7 Emergency Response • Fully Insured • Your Local South Wales Experts

30+ Years' Experience
Unmatched Industry Knowledge
Fully Insured
Complete Peace of Mind
South Wales Coverage
Local Experts in Your Area