PIRB vs IOPSA: What Every Homeowner Should Know Before Hiring a Plumber
23 May 2026 · Plumbers On Duty Editorial
Quick answer
PIRB registration and IOPSA membership are the two things to look for on a South African plumber's profile. Here's what each one actually means.
This guide breaks down everything South African homeowners need to know about pirb vs iopsa: what every homeowner should know before hiring a plumber — based on current 2026 pricing, SANS regulations, and on-the-ground advice from PIRB-registered plumbers.
Credentials to ask for
- PIRB registration number — verifiable on the PIRB website
- IOPSA membership — indicates ongoing training
- Public liability insurance — at least R1m cover
- Tax clearance (for invoiced work over R5,000)
Red flags
- No written quote
- Cash-only payment demands
- Reluctance to issue a Certificate of Compliance
- No fixed business address or landline
Questions worth asking
- Are you PIRB-registered? Can I have your PIRB number?
- Will you issue a COC for this work?
- Do you offer a workmanship guarantee, and for how long?
- Is VAT included in the quote?
Get a vetted quote
Use Plumbers On Duty to find PIRB-registered plumbers in your area, compare reviews, and request quotes without sharing your number publicly. Every plumber on the directory is verified before being listed.