House Rendering in Sydney: Your Complete Guide to Getting It Right

House rendering is the act of covering the exterior (or interior) of a home with layers of material like cement, sand, lime and water. Render gives your walls a strong, smooth finish and offers many functional benefits.​

Homes in Sydney get rendered for three main reasons: to cover an ageing or damaged facade, to protect the structure from the elements, or to give your home a modern facelift. A rendered home tends to have a higher property value and attracts more interested buyers due to its street appeal.

How Long Does Cement Render Last?

A high-quality rendering job can last anywhere from 15 to 25 years before it may need to be re-rendered. Its total lifespan depends on how often you maintain the rendered surfaces. The render may need to be replaced earlier than expected if any of the following occurs:

• Poor surface preparation before the render is applied
• A cheap or watered-down render mix
• Constant exposure to salt air (common in beachside suburbs)
• Cracks or holes in the render left unrepaired, allowing water to get into the surface.
• No paint or sealer to protect the rendered surface.

If your render is around 10-15 years old and you notice signs of damage or wear, we recommend calling a professional rendering company like Sydney Cement Rendering to inspect it and help you avoid costly repairs or further structural damage.

​The Types of Render Available in Sydney

Over the years, various types of render have been introduced to the render industry, each with its own pros and cons. Here are the main render options you will find in Sydney:

• Cement render: A traditional, trusted render option made from sand, cement, lime, and water. It’s one of the more affordable render options available and is fairly durable, although it can be more prone to cracking if it is not maintained properly.

• Acrylic render: A polymer-based render that requires thinner layers. It is generally more flexible than cement render and isn’t as prone to cracking. Acrylic render is available in a wide range of pre-tinted colours.

• Silicone render: A render made with silicone-based resins, aggregates (sand), and coloured pigments. It has excellent water resistance and is flexible and fairly low maintenance, with self-cleaning properties.

• Microcement and Venetian plaster: Polished and modern render finishes that add a touch of luxury. They are mostly used for interior decoration and feature walls. More costly than other render options because of their labour-intensive, hand-rendered finishes and the high level of craftsmanship they require.

• Blueboard render: Typically uses a cement board instead of a brick surface. A popular choice for home extensions, new construction, and lightweight framed walls.

The Cost of Render

Please note that the figures listed below are rough estimates only. Every home is different, and no two rendered surfaces will cost the same. For a more accurate estimate, please call Sydney Cement Rendering on 0402 704 984. Remember to ask us what’s included in the total price.

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Factors that can influence the total price include:

• The size of your home (how many surfaces need rendering)
• Whether or not the surface needs to be repaired first
• Whether you require scaffolding or not
• The type of render and finish you choose
• How many layers of render you need

The Essential Tools and Equipment Required

Having the right tools and equipment on hand will set you up for success. The essentials include:

Safety First

Safety always comes first in any construction or hands-on project. To protect your safety, ensure you have the following:​

• Safety goggles/glasses
• Gloves
• Dust mask
• Protective overalls/clothing
• Closed shoes

Preparation tools

Preparing the surface of your wall is key to a successful rendering job:

• A stiff-bristled or wire brush to get rid of any loose debris or stains
• A mild detergent or soap to scrub away any stubborn stains
• Hose or pressure washer to clean away

Rendering Tools

Having these tools on hand will ensure that your rendering job goes as smoothly as possible.​

• Mixing bucket, mixing paddle or mixing drill (to mix the render)
• Trowels (stainless steel trowel, corner trowel or finishing trowel)
• Floats (Sponge float or render float)
• A plasterer’s hawk
• Spray bottle (to keep the render moist)
• Cleaning supplies (broom, dustpan, etc)
• Texturing tools (if your render will be textured, there are different types of trowels, brushes and combs that will give you the finish you’re looking for.

The Process of Rendering a House: Step-By-Step

Inspection and Quote

A professional rendering company will inspect your walls, measure the area, and provide a written quote, so you have a clearer idea of what the rendering project will cost you.

We recommend getting at least two quotes so you can be sure you’re choosing the right company. It’s important to note that the cheapest option isn’t always best.

Surface Preparation

Any loose debris (dirt, dust or paint chips) will need to be cleaned off. Holes and cracks will need to be patched up.

Mesh Reinforcement (If Required)

Some sections of the surface may be more prone to cracking. A mesh layer can help strengthen the render.

Applying the Scratch Coat

The scratch coat is the first layer of rough render or mortar that is applied to the substrate to help the secondary layers grip more securely to the surface.  

If you don’t apply a scratch coat, the render may fail to bond to the substrate.

The Finishing Coat

​The second or third render layer is applied to the surface, giving your home its final look.

The Curing and Drying Process

The render needs time to dry and cure properly (giving it the right amount of moisture to harden through a chemical process known as hydration). This can take anywhere from a few days to a few weeks, depending on the type of render and the weather conditions.

Painting and Sealing

Once the render has dried and cured, you can paint over it or seal it with a sealant to protect it from the elements and lock in the colour.

Most residential rendering jobs take a few weeks to complete, depending on the size of the house and the weather conditions during the project (high humidity levels and rain can slow down the drying and curing process).

Do You Need Council Approval to Render Your Home?

In most cases, no. Applying standard renders such as cement render or acrylic render is usually classed as ‘exempt’ or as ‘complying development’under NSW planning rules, so you can usually go ahead without a formal DA (Development Application).

These are the special circumstances that will usually require council approval:

• Your home is either heritage-listed or located in a heritage conservation area
• You’re changing the appearance of your home significantly (height or bulk)
• Your property sits in a special zone with extra design controls

For peace of mind, we recommend double-checking with your local council before you start any work.

Choosing a Reputable Rendering Company in Sydney

Rendering blends skill and art to deliver the best possible outcome. The completed job only looks as good as the person applying it, so who you hire matters as much as the render and render finish you pick.

To find a reputable rendering company in Sydney, we recommend looking for the following:

• A company that has a current NSW builder’s or tradesperson’s licence. Visit Service NSW to check for licences.
• A company that has actual photos of past jobs on their website and social media pages
• A company that will answer all your rendering questions
• A company that has a good mix of reviews and testimonials
• A company that will provide you with a clear, written quote that covers all the preparation and work
• A company that offers some form of satisfaction guarantee on the completed project
• A company that replies to your queries promptly

Sydney Cement Rendering takes true pride in the high quality of their render projects: no job is too big or too small! We’re always available to answer any questions you may have. Call us on 0402 704 984 to learn more about our rendering services.

​Common House Rendering Mistakes That Should Be Avoided

Here are some of the common house rendering mistakes we see:

• Skipping the surface preparation: Some homeowners think they can apply the render straight to the wall if they can’t see any visible signs of damage or debris, but this is a big mistake, as there will always be some debris that needs to be removed or a section of wall that needs to be retouched or cleaned. If the surface isn’t prepared at all, the render won’t adhere to the wall properly and will need to be reapplied much sooner than expected.

• Choosing the cheapest quote/job: Lower prices don’t always mean quality and can indicate rushed work, thinner render coats, or a diluted render mix to stretch further. All these factors compromise the quality of the render.

• Rendering in the wrong weather conditions: Rendering during high humidity or during rainy days means that the render doesn’t get to dry and cure properly, resulting in higher risks of the render cracking.

• Not checking the company you hire: Hiring a company through word of mouth or because of a cheap quote doesn’t always mean the company is licensed or qualified to do a high-quality render job. Do your research before hiring a company.

Hiring an unlicensed renderer can leave you without cover if something goes wrong. Double-check everything before paying a deposit for peace of mind.

• Not asking about the guarantee: A reputable company stands by their work. Ask about what is covered and for how long before you sign.

At Sydney Cement Rendering, we take pride in being Sydney’s trusted rendering experts. From residential jobs to large-scale commercial projects, we provide our customers with the highest-quality rendering services and adapt to every situation and rendering style. To learn more about our residential rendering services and get an accurate quote, call us on 0402 704 984 or visit our website https://sydneycementrendering.com/.

FAQs

How Long Does Cement Render Last?

A high-quality cement render can last anywhere from 15-25 years, and sometimes even longer.

How Long Does a Residential Rendering Job Take?

A standard-sized home usually takes anywhere from several days to a few weeks to be completed. However, the timeline depends on the size of the home, the weather conditions, and how much prep work the surfaces need.

How Much Does Rendering a Home Cost in Sydney?

The cost of rendering a home in Sydney varies based on several factors: the size of the home, the render type, how much repair or preparation is required, and whether the job is delayed by weather conditions.

Is DIY Rendering a Good Idea?

​For small patch repairs, DIY is fine, but for rendering a whole home, we strongly recommend hiring a professional renderer. Many factors affect the outcome, including humidity levels, the render mix, the number of coats, and correct drying and curing times.

Can You Render Over Brick, Blue Board Or Timber?

​Yes, you can render over all three substrates. Brick suits most render types, while blue board suits newer builds and extensions. Timber can be rendered as well, but it may need extra prep to stop moisture from entering and causing structural damage.

Do I Need Council Approval to Render My House

Usually not. Council approval is usually only required in special circumstances such as your home being heritage-listed or located in a conservation zone. It is strongly recommended that you double-check with your local council before any rendering work begins, just to be safe.