National Association of Drainage Contractors

Plumbing and water · Drainage contractor trade association

The National Association of Drainage Contractors represents drainage businesses and supports sector training and certification. Membership and a particular drainage competence certificate are separate checks.

Checked November 2026Official sources below.

What it covers and whether it is required

Membership is voluntary. It does not replace requirements for safe jetting, confined spaces, waste handling or approvals for the drainage work itself.

Joining requirements and costs

NADC describes an expectation that members commit to relevant certification and begin further certification after joining. Applicants should confirm the present membership route and the qualifications, insurance and business evidence needed for their drainage activities.

Check the current fees with National Association of Drainage Contractors before applying. Ask whether the quotation includes application, assessment, renewal and any per-job charges. Use published fees or ask for a written quotation.

What it means for homeowners

Use the official contractor search. Agree whether the job is clearance, CCTV survey, repair or design and ask what report or record will be supplied. An association listing is not itself proof that a drain repair has been inspected or guaranteed.

How to check a claim

Official member, card or certificate check: National Association of Drainage Contractors.

Match the record to the named person or contracting business. Check the current scope, not just a logo on a van or an old certificate. If the public record does not show the detail you need, ask the body to confirm it before appointing the business.

Where the scheme applies

UK drainage sector. Sewer ownership, water-company approval and building requirements depend on the location and work proposed.

Common questions

Does NADC membership make a CCTV drain report a full structural survey?

No. Agree the survey scope, coding and report limitations. Drain inspection and a whole-building structural survey are different services.

How do I check National Association of Drainage Contractors status?

Use the official verification service linked in this guide. Match the person or legal business name, current status and relevant work category. For a guarantee, check the document issued for your contract as well.

Official sources

Sources checked November 2026. Scheme rules can change; confirm current requirements before applying or signing a contract.