Unblocking & Cleaning
Fast, reliable drain unblocking and jetting services for businesses and industrial sites throughout the UK
Professional Drain Unblocking & Cleaning for Commercial and Industrial Sites
A blocked drain on a commercial or industrial site is far more than an inconvenience — it can disrupt operations, create health and safety risks, and in serious cases force a full site shutdown. Drain Alert provides a comprehensive commercial drain unblocking and cleaning service, available every day of the year, to keep your drainage systems functioning and your business protected.
Our satellite-tracked response fleet is fully equipped to handle everything from routine blockages to complex drainage failures. With no call-out charges, fixed pricing, and a free on-site assessment, you will always know exactly what to expect before any work begins.
Why Drain Maintenance Matters for Your Business
Regular drain cleaning is one of the most cost-effective forms of preventative maintenance a commercial or industrial site can invest in. Blocked or poorly maintained drainage systems can lead to:
- Operational disruption: A severe blockage can halt production lines, close facilities, or render areas of your site unusable
- Flooding: Blocked drains are a leading cause of internal and external flooding on commercial premises
- Health and safety risks: Standing water, sewage overflow, and drainage failure can create serious hazards for staff, visitors, and the public
- Regulatory exposure: Poorly maintained drainage can result in compliance failures, particularly in food production, manufacturing, and industrial environments
- Costly reactive repairs: Addressing a severe blockage or drain failure always costs significantly more than routine preventative maintenance
Drain Alert works with a wide range of commercial clients — including local authorities, schools and colleges, manufacturing facilities, retail sites, and industrial operators — to ensure drainage systems remain clear, compliant, and fully functional throughout the year.
Common Causes of Blocked Drains
Commercial and industrial drain blockages can arise from a wide variety of sources. Common causes include:
- Fats, oils, and grease (FOG): Particularly prevalent in commercial kitchens, food manufacturing, and hospitality venues — accumulations solidify inside pipework over time
- Industrial process waste: Residue and sediment from manufacturing or processing operations can build up in drainage systems
- Silt and debris: Leaves, grit, and silt in external drains and manholes are a frequent cause of slow drainage and blockages
- Tree root ingress: Roots from nearby trees can penetrate and crack drainage pipes, causing partial or complete blockages
- Foreign objects: Items incorrectly disposed of via toilets or sinks — including wipes, sanitary products, and packaging — are a common source of blockages in commercial premises
- Scale and deposit build-up: Limescale and mineral deposits accumulate on the internal walls of pipes, gradually reducing flow capacity
How We Clear Blocked Drains
All Drain Alert response vehicles are fully equipped with a comprehensive range of drain clearing and cleaning equipment, enabling our engineers to tackle blockages of any scale effectively and efficiently.
Following any unblocking or cleaning work, we carry out a final check to confirm the drain is running freely. Where we identify evidence of structural damage or further issues, we will advise you accordingly — and our CCTV Drain Survey service is available to provide a full diagnosis.

