Why Contractor Management Matters as Much as Contractor Selection
Choosing a reputable contractor is the first step. Managing the relationship correctly throughout the project is what determines whether the job finishes on time, on budget, and to the agreed standard. Many South African homeowners underestimate how much active management a building project requires — and pay for that assumption in cost overruns, delays, and unresolved defects.
Before Work Starts — The Contract
A written contract is non-negotiable for any project above R20,000. The contract should specify: the full scope of work (ideally with a specification document listing materials and finishes), the start and end dates, the total price, the payment schedule tied to milestones (not dates), the process for handling variations, the defects liability period, and the dispute resolution process.
Pay particular attention to the variation clause. Any change to the agreed scope — additional work, upgraded materials, design changes — should be agreed in writing before work proceeds, with a price. Verbal agreements about variations are the single most common source of disputes at project end. "But you said you would..." is not enforceable.
Payment Schedule — Milestone-Based Only
Never pay on a date schedule. Always pay on a milestone schedule — payment is made when a defined stage of work is visibly complete and you have inspected it. A typical milestone structure:
- 10–15% deposit on signature (covers mobilisation and initial materials ordering)
- 25–30% on completion of foundations and slab
- 25–30% on completion of walls and roof structure
- 20% on completion of internal finishes and services
- 5–10% retention on sign-off after the defects period
The retention — the final 5–10% held back — is your only real leverage after the contractor considers the job complete. Never pay retention until every item on the punch list is resolved to your satisfaction.
Site Visits — Inspect at Every Milestone
Visit the site at every milestone payment point and before releasing payment. You are not expected to be a construction expert, but you can observe: is the work at the stated stage? Is the workmanship visually clean and consistent? Are materials on site consistent with what was specified? Are there visible defects (cracking, poor alignment, missing items) that need to be addressed before the next stage?
For larger projects, engaging an independent building inspector for milestone inspections (R1,500–R3,000 per visit) gives you professional eyes on the quality of work and provides documentation if a dispute arises.
Communication — Written Records of Everything
Instruct the contractor to communicate all significant matters in writing — WhatsApp messages are perfectly acceptable as a written record. After any important verbal conversation (a site meeting, a decision about a material change, an agreement about a timeline adjustment), send a follow-up WhatsApp or email confirming what was agreed. This practice eliminates the "that's not what we agreed" dynamic that fuels most contractor disputes.
If a contractor becomes defensive about written communication, this tells you something important about how they typically operate.
Handling Problems During the Project
Raise defects or concerns immediately when you notice them — not at project end. A problem identified early is almost always easier and cheaper to rectify than one discovered after the next stage of work has been completed on top of it. Be specific and factual when raising issues: "the tiling in the bathroom has visible grout lines that are not uniform — please review before proceeding" rather than "the tiles don't look right."
Document every defect with a photograph and a date. If the contractor disputes the defect or refuses to address it, you have evidence for any subsequent dispute process.
When Things Go Seriously Wrong
If a contractor abandons the project, does substandard work and refuses to rectify it, or demands payment for work not done, your primary options are:
- Issue a written notice of breach giving a defined period (5–10 business days) to remedy the breach or the contract will be terminated
- If not rectified, cancel the contract in writing, quantify the cost to complete the work using another contractor, and claim the difference from the original contractor
- For claims below R20,000, the Small Claims Court is accessible without an attorney
- For larger claims, an attorney's letter often produces resolution without litigation
The National Home Builders Registration Council (NHBRC) regulates residential builders. Complaints about NHBRC-registered builders can be submitted to the NHBRC. Check whether your contractor is registered at nhbrc.org.za before engaging them.