
Dean Road, Croydon, Surrey
Croydon, Surrey
Sewer connection project certified and approved by Thames Water.
Client · BME Building Services

Ng Tunnelling Ltd · Company 09111340 · Trading heritage since 1980
Active, accounts up to date·subcontractor·Head office Mitcham
NG Tunnelling Limited is a family-run business with over 40 years of experience, specialising in sewer connections for a range of clients including large contracting firms, developers, and domestic customers. They operate across London and the surrounding areas, providing a comprehensive "one-stop-shop" for all drainage needs. The company manages all necessary council and water authority applications and approvals, simplifying the process for clients.
They offer a prompt and complimentary quotation service, including site visits and consultations. Throughout each project, their team maintains open communication, ensuring clients are kept informed and any queries are addressed. NG Tunnelling prides itself on a customer-focused approach, fostering strong working relationships that lead to repeat business.
They have a proven track record of successfully arranging inspections and obtaining completion certificates from local water authorities like Thames Water. Their services encompass sewer connections and diversions, assistance with build-over agreements, and the removal of drainage interceptor traps. They employ various excavation methods, including tunnelling, shaft sinking, and open-cut trenching, to reach existing sewers efficiently and with minimal disruption.
Tunnelling, in particular, is highlighted as a method that avoids road excavation, saving time and costs associated with permits and traffic management.

Croydon, Surrey
Sewer connection project certified and approved by Thames Water.
Client · BME Building Services
London
Sewer connection project completed with helpful and patient on-site staff.
Client · 8build
Thames Ditton, Surrey
Project completed within agreed time scales with regular email updates.
Client · Javlin Homes Ltd
BME Building Services, Barratt Homes, Balfour Beatty, Osborne Group, 8build, Javlin Homes Ltd.
This profile was compiled from public records. Claim it to add the things buyers ask for:
NG Tunnelling are specialists in sewer connections, offering a one-stop-shop for drainage works in London & Surrey, covering South East England. Their listed services include Drainage and Civil engineering.
Ng Tunnelling Ltd is registered at Unit 7, Willow Lane Business Park, 1 - 11 Willow Lane, Mitcham, CR4 4NA, in London.
Ng Tunnelling Ltd states that it works across London, Surrey and South East.
Accounts filed for the year to 2025 report 5 employees, which places the company in the 1-9 employees band.
Companies House lists Ng Tunnelling Ltd as active, with accounts most recently made up to 2025-06-30.
Ng Tunnelling Ltd works in Infrastructure, Residential and Commercial.
Ng Tunnelling Ltd was incorporated on 2014-07-01, though the company says it has traded since 1980.
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