A single place to publish regional and national drainage tenders. Our matching system surfaces each tender to qualified, audited local engineers within the service area and accreditation requirements you set.
Tenders are free to publish. You only pay once work is awarded and completed.
Publish your tender
Set out the scope, area and contract terms. We'll surface it to the right verified engineers — your company details stay confidential.
Only verified, accredited engineers receive your tenders.
Publish a single tender to a defined region or nationwide coverage.
CSCS, SHEA, HPWJA and more — verified before an engineer sees your work.
How it works
Register as a contractor on TDER.app and verify your business details.
Set scope, region or nationwide coverage, required accreditations and the response deadline.
Our location system surfaces the tender to verified local engineers within the service area.
Review applications, award the work and track completion on a single audit trail.
For engineers
Tenders published here are open to engineers on the national audited register. To join, complete your accreditation and compliance verification on TDER.co.uk — once you're registered and audited, you'll be matched to tenders that fit your service area.
TDER.app handles tender publishing and contractor workflow. Engineer accreditation, compliance and auditing are managed on the national register at TDER.co.uk.
Go to engineer registrationMeet the Buyer
Tier 1 contractors host meet-the-buyer sessions to introduce upcoming drainage works. Engineers in the area can join the thread for each event to ask questions and register interest.
The first Meet the Buyer event will appear here.