Frequently Asked Questions

We operate 24 hours a day, 365 days a year. For emergency blockages, backups, or flooding, we dispatch a local engineer immediately to contain the issue and prevent property damage.

No. We believe in 100% transparent pricing. We provide clear, upfront quotes before any work begins—meaning zero hidden call-out charges or night-rate surprises.

We provide comprehensive drainage services throughout London, Essex, Kent and the South East and all surrounding local towns for domestic, commercial, and industrial properties.

Yes. All BLOKD Drainage engineers are fully qualified, insured, and trained to operate strictly within UK water industry safety standards.

Common warning signs include slow-draining sinks or showers, water rising high in the toilet bowl, gurgling noises from plug holes, and persistent foul odours indoors or around outdoor gullies.

We strongly advise against it. Chemical unblockers rarely clear dense obstructions like roots or grease and can erode pipe joints. Cheap DIY rods often unscrew or snap inside tight pipe bends, creating a far more complex retrieval job.

The most common culprits are flushed wet wipes, sanitary items, cooking fats and oils (FOG), hair clusters, heavy scale buildup, and tree roots penetrating pipe joints.

In the vast majority of cases, no. We specialise in modern no-dig cured-in-place pipe (CIPP) patch lining, which repairs damaged underground pipes directly through existing access points without excavation.

Underground pipes fail due to tree root ingress, ground movement, soil shifting, heavy vehicle traffic over shallow lines, or the natural age degradation of older clay, pitch fibre, or cast iron pipes.

If your drains block repeatedly shortly after being cleared, or if you notice localised damp patches, sinking paving slabs, or persistent smells, an underlying structural fault is likely present.

Using remote HD inspection cameras, our engineers navigate your underground pipework to locate hidden defects. You receive an HD video recording, a technical structural report, a drainage layout map, and an itemised fixed-quote for any required repairs.

Standard homebuyer building surveys do not look inside underground drainage systems. A CCTV survey ensures you are not inheriting thousands of pounds in hidden structural cracks, collapsed pipes, or severe root damage prior to exchange.

Yes. Rats frequently enter properties through broken, uncapped, or dislodged underground drainage pipes. Our cameras locate the exact entry points so they can be sealed permanently.

Tankers are required for high-volume liquid waste extraction, heavy sludge removal, and deep chamber access—such as septic tank emptying, commercial grease trap de-sludging, petrol interceptor cleaning, and emergency floodwater removal.

Every load collected by our vacuum tankers is processed in strict compliance with UK Environment Agency standards. We transport liquid waste directly to authorised UK treatment facilities and provide full Duty of Care transfer documentation for your records.

Most domestic septic tanks require emptying annually to prevent solid sludge from overflowing into soakaway fields. Higher-occupancy or commercial properties may require more frequent maintenance.

PPM contracts stop drainage emergencies before they start. Scheduled jetting, stack descaling, and grease clearance prevent sudden business downtime, environmental health fines, and expensive emergency callouts.

Pre-Planned Maintenance is ideal for commercial kitchens, restaurants, hotels, retail parks, schools, and multi-occupancy residential blocks that process high volumes of waste and cannot afford operational downtime.

Maintenance schedules are tailored to your site’s specific usage. High-risk areas like commercial grease lines typically require quarterly or bi-annual servicing, while standard commercial buildings may only require an annual system cleanse.