New Drain Installations London

Compliant Drain Installation Services in London & Hertfordshire

Ensure the success of your construction project with a professionally designed and installed drainage system from Drain 247. We provide a complete drain installation service for new builds, property extensions, and system upgrades across London and Hertfordshire. From initial groundwork and planning to final connection and reinstatement, we guarantee all work complies with Building Regulations and Water Authority standards.

Your Local Installation Experts in London & Hertfordshire

From our base in Watford, we serve the entire region, including: All London Boroughs and Hertfordshire (Watford, St Albans, Hemel Hempstead, Stevenage, and surrounding areas).

Regulatory Compliance & Guarantee

Drainage installation is a complex process that must adhere to strict legal and technical standards to be signed off by local authorities and utility companies. Our service is built around complete compliance, giving you total peace of mind.

Full Compliance with Building Regulations (Part H)

The UK Building Regulations Part H (Drainage and Waste Disposal) sets out the essential requirements for all drainage systems, covering everything from the gradient and depth of pipes to the safe separation of foul and surface water. We guarantee that your system will be designed and installed to meet or exceed all sections of Part H, including:

H1 (Foul Water Drainage): Ensuring the correct connection and adequate system to carry wastewater from all appliances.

H3 (Rainwater Drainage): Making proper provision for rainwater, prioritising soakaways and sustainable methods where feasible.

H5 (Separate Systems of Drainage): Guaranteeing that foul and surface water pipes are kept strictly separate, a legal requirement that prevents contamination and system overload.

Water Authority & Sewer Connection

If your project involves connecting to the public sewer system—whether for a new build or transitioning from a septic tank—we handle all regulatory and procedural aspects:

Section 106 Applications: We manage the formal application process with the local Water Authority (e.g., Thames Water, Affinity Water) to secure the necessary 'Section 106' consent for making a new connection.

Highway Works: Should the connection require excavation in a public road or footpath, we arrange all necessary permits, traffic management, and certified reinstatement work, ensuring all liability and insurance requirements are met.

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Testimonial

Drain 247 mapping saved our project from delays. Clear plans, fast service!”

— John S, Architect, London

Frequently Asked Questions

Yes, all new drainage systems and alterations must comply with UK Building Regulations Part H. If you are connecting to a public sewer, you will also need a Section 106 agreement from your local water authority. We can help guide you through this process.

The cost depends entirely on the scale of the project, including the length of the pipe runs, the depth of excavation, and the type of surface. We provide a detailed, no-obligation quote after a full site survey.

Foul water is the waste from toilets, sinks, showers, and kitchens. Surface water is rainwater from roofs and patios. It is a legal requirement for these two systems to be kept separate.

Yes. We are fully equipped and qualified to manage new connections to the public sewer system, including all necessary applications, excavation in public highways (if required), and final inspection.

A simple installation for a small home extension may take a few days. A larger project for a new build or a new sewer connection can take a week or more. We will provide a clear project timeline with your quote.