Choosing a builder is one of the higher-risk decisions a homeowner or property manager makes. The difference between a smooth project and an expensive mess usually comes down to who you hire — not the materials or the design.
Gauteng has thousands of contractors, from established registered companies to one-person operations that disappear halfway through a job. This guide gives you seven practical checks you can make before you commit, so you can tell the difference.
1. Confirm they're a registered company
A registered South African company has a company registration number and a legal identity you can hold accountable. It's a basic filter that removes a lot of risk.
Ask for the registration number and check that the business name matches the people you're dealing with.
2. Ask whether the trades are in-house or subcontracted
Many 'builders' are really middlemen who subcontract every trade — painting to one crew, roofing to another, tiling to a third. When something goes wrong, no single person is accountable, and quality varies from crew to crew.
A team that keeps its trades in-house can coordinate the whole job under one point of responsibility, from the first inspection to handover.
3. Insist on a site inspection before any quote
Be cautious of anyone who gives you a firm price over the phone or WhatsApp without seeing the property. Building work depends on what's actually there — the condition of surfaces, access, the amount of preparation needed.
A physical site inspection is how a builder measures the real job. A quote based on a proper inspection is far more likely to hold than a number guessed from a photo.
4. Get the scope and the quote in writing
A written, itemised scope protects both sides. It sets out exactly what is (and isn't) included, so there are no surprise 'extras' halfway through.
If a contractor won't put the scope in writing, treat that as a warning sign.
5. Look at real, verifiable work
Photos of finished projects, before-and-after comparisons, and a genuine project history tell you more than a sales pitch. Ask to see work similar to yours.
Reviews from real customers — for example on a Google Business Profile — are worth more than testimonials with no source.
6. Understand the materials arrangement upfront
Clarify who buys the materials. Some contractors mark up materials heavily; others expect you to supply them.
An honest builder will tell you exactly what materials and quantities are needed so you can budget properly — even if you're the one purchasing them.
7. Check how they'll communicate during the build
Poor communication is the most common complaint about building work. Before you start, agree on how you'll be kept updated — a daily message, photos of progress, a named contact.
Knowing what's happening on your property each day removes most of the anxiety of a renovation.
NLSS 2 Business Trading is a registered Gauteng builder that keeps all of its trades in-house, quotes only after a physical site inspection (from R600), and keeps clients updated throughout the build.
If you're planning building, renovation, roofing, painting or maintenance work, book a site inspection and get an honest, written quote for the real job.