A heavy pressure wash with an anti-mould solution to kill all mould and clean the porous surface to ensure the new coatings will stick without any issues, If there is efflorescence present it would be cleaned off and treated at this stage.
Address any cracking to the control joints by grinding specialized control joints in the substrate and removing any loose or drummy render.
Once the cracking and loose render is dealt with we can then patch repair the render and apply a polyurethane sealant to all the vertical and horizontal control joints which will flex to bridge any control cracking and help prevent moisture ingress in the future.
Any loose or bubbling coatings will need to be addressed by completely scrapping the affected coatings off the surfaces and the bare render will receive a primer coat to promote adhesion.
Dealing with water ingress issues can be tricky. This is something that would need to be addressed by either our team or potential other associated trades if the issue falls outside of a simple sealant fix.
Install and restore expansion joints. Prepping and painting
Painting a rendered home isn’t as simple as slapping on a fresh coat — especially with Queensland’s weather and the way render breaks down over time. These FAQs cover everything you need to know before starting your project, from prep work to pricing surprises. No fluff, just honest answers from Brisbane’s rendered house painting pros.
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Rendered homes are more porous than brick or timber, which means they can absorb moisture, develop hairline cracks, or show signs of oxidation (that chalky, white stuff). Getting a long-lasting result means starting with the right prep and using the right paint — not all surfaces are created equal.
Allowing enough curing time for freshly applied render is crucial to ensure that the paint adheres properly, preventing issues like blistering or peeling due to trapped moisture. Using silicone based masonry paints can further enhance durability and water resistance, providing breathability that makes them ideal for outdoor applications.
We often see cracks, bubbling paint, efflorescence (white salts), and chalky coatings. Proper preparation and selecting the right paint types suitable for rendering are essential to ensure a long-lasting finish. Sometimes moisture trapped behind the render causes peeling. These need to be fixed properly first — otherwise, the paint won’t stick or last long. Proper preparation and techniques are crucial for achieving a professional finish.
Not as-is. If the render is heavily oxidised, it means the surface is breaking down. We’ll need to use a wire brush to remove loose or peeling paint, pressure wash, scrape, or apply a bonding primer first. Painting straight over chalk will just lead to peeling down the track. Additionally, using a bleach solution is effective for cleaning and preparing the surface, especially for removing mould or moss, ensuring a clean and adequately prepared surface for the painting process.
Yes — cracks must be repaired before any painting begins. Priming newly rendered walls is crucial as it improves adhesion, seals the surface, prevents moisture issues, and enhances the longevity of the paint job. We use grinding tools on control joints, patch with flexible sealant, and assess the area for deeper structural issues if needed. A solid finish always starts with solid prep, including the application of two coats of paint for achieving a durable and even finish.
Prep can include using a pressure washer to clean the surface thoroughly. Additionally, using a stiff brush is effective for removing dirt and loose particles. Prep can also include grinding cracks, patching render, removing old paint, and checking for water ingress. If you skip prep, you’ll be repainting again sooner than you’d like — and probably paying twice.
Maybe — it depends on height and access. If we can paint safely using ladders or work platforms, your quote will be lower. If not, scaffolding or height access equipment may be required, which adds to cost. We’ll confirm during your onsite inspection.
Typically: rendered walls, fascia and gutters, soffits, patio ceilings, and the exterior of timber doors/frames. Extras like timber windows, balustrades, or fences aren’t usually included unless requested.
Absolutely. If your walls are taking on moisture — through cracks, failed sealant, or poor drainage — the new paint won’t last. Preventing moisture buildup is crucial, and ensuring the surface is completely dry before painting is essential to avoid issues like bubbling, cracking, and mold infestation. We’ll identify these issues before starting and recommend a fix, even if it means bringing in another trade.
We typically use ultra-premium acrylic exterior paints designed to breathe while still protecting from weather. However, masonry paint is also an excellent choice for rendered surfaces due to its specialized formulation that ensures reliable adhesion, water resistance, and breathability. Additionally, using silicone render can provide exceptional water resistance and durability, making it ideal for contemporary homes with specific weatherproofing needs. If your render’s in poor condition or you’re near the coast, a membrane coating may offer longer-term protection.
We’ll do a full inspection to check for moisture, cracks, loose paint, oxidation, and other risks. Using a stabilizing primer prior to painting will lead to better adhesion, ensuring a smoother, more durable finish. If the surface isn’t ready, we’ll prep it properly first — because a flawless finish starts before we even open the paint tin. Proper preparation ensures a long-lasting and aesthetically pleasing paint job.
Surepaint™ isn’t just another painting company. With over 2,000 projects completed, we don’t just deliver exceptional results —
We set the benchmark for what a professional painting service should be.
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