The NADC represents drainage contractors across the UK. Membership demonstrates technical competence and professional standing for businesses carrying out drain unblocking, CCTV surveys, drain lining, excavation, and infrastructure works.
| Issued by | NADC |
|---|---|
| Typical cost | £400 a year |
| Renewal | Every year |
| Who needs it | Drainage engineers |
What you need to get it
3 requirements, and what counts as evidence for each.
Drainage Qualifications
Relevant drainage qualifications and/or demonstrable industry experience. City & Guilds, Water Industry qualifications, or equivalent.
Evidence: Qualification certificates or experience evidence.
Insurance
Public liability and employer’s liability insurance.
Evidence: Insurance certificates.
NADC Application
Complete the NADC membership application form with company details and references.
Evidence: Completed application form and trade references.
What you have to keep doing
Getting it is the easy part. Keeping it means:
Annual Renewal
Renew membership annually.
Is it worth it?
At £400, the question isn’t the fee — it’s whether it wins you work. For drainage engineers it usually does, because it’s the first thing a cautious customer or a commercial buyer checks. Most trades hold accreditations and then hide the logos in the footer. If you’ve paid for it, it belongs where customers actually look.
Tracking it
Accreditations lapse quietly. The renewal date lands in a busy month, nobody spots it, and you find out when a customer asks for the certificate. Gaffer keeps your accreditations, evidence and renewal dates in one place and reminds you before they expire.