Waterproofing services at Sentech's Riversdale site.
Zanele
Compulsory briefing — you must attend to bid
4 August 2026 at 11:00 · Riversdale Shell garage
In plain English
Sentech seeks a contractor for waterproofing and repairs at the Riversdale transmitter site. Bidders must have a valid COIDA and CIDB certificate and be registered on the Sentech Supplier Database.
Always check the official documentDescription
Sentech invites contractors to perform waterproofing and maintenance services at the Riversdale transmitter site. The project involves repairing concrete roofs and external walls, including crack repairs, surface cleaning, and the application of specialized waterproofing membranes and elastomeric paint. The total work area covers 215 square meters of roofing and 880 square meters of wall space. The project must be completed within 8 weeks of safety file approval. Contractors must provide a 60-month workmanship warranty and a 12-month defects liability period. Access to the site requires 4x4 vehicles due to steep gravel roads. Bidders must demonstrate previous experience in waterproofing projects and provide a detailed project schedule.
What you need to qualify
- Tax clearance — A valid SARS tax compliance status (PIN) showing your tax affairs are in order.
- B-BBEE certificate — A B-BBEE certificate or sworn affidavit confirming your contribution level.
- CIDB grading (Grade 1 Specialist Works (1SW)) — A Construction Industry Development Board grade in the right class of works.
- Letter of Good Standing — COID registration and a Letter of Good Standing from the Compensation Fund.
- Other registration — An industry registration the tender requires (e.g. PSIRA, NHBRC, a professional or trade licence).
Full requirements
- Valid Tax Compliance status
- Registered on the Sentech Supplier Database
- Valid CIDB grading of 1SN or higher
- Valid COIDA Letter of Good Standing
- Valid B-BBEE certificate
- Valid public liability insurance
- Proof of relevant waterproofing project experience
- Valid medical fitness certificates for all employees
- Valid mast climbing certificates for all employees
Contact & how to apply
Name: Zanele
Email: Quotations6@sentech.co.za
Phone: 011-471-4000
How to apply: Submit your quotation on a company letterhead, fully completed and signed in black ink, via email to Quotations6@sentech.co.za before 12:00 on 14 August 2026.
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