Retaining walls are often a structural necessity for Melbourne properties, particularly those on sloping or uneven ground. While pricing is a key concern for many, settling for the cheapest retaining walls isn’t always the best long-term solution. We’ll outline the most cost-effective retaining wall solutions available, and whether you’re compromising on durability, appearance, or compliance.
What Makes a Retaining Wall Cheaper?
Materials and Installation
The final cost for retaining walls covers two main expenses: materials and installation. The most affordable materials include concrete blocks and treated timber, which combine durability and cost-effectiveness. Meanwhile, installation costs include labour, permits, and inspections. The larger the area, the more you can expect to pay for materials and installation.
Site Access and Complexity
Another important factor is the complexity of the design and accessibility of your property. When the site requires more time and resources to access, it can lead to higher costs. The same applies to complex projects involving intricate designs, uneven terrain, or difficult soil conditions. These result in higher costs because of increased material and labour requirements.
Cheapest Retaining Wall Materials Compared
Timber
Timber retaining walls are generally the most affordable option, especially when using treated pine. They’re quick to install and great for low-height walls, but they’re also more prone to decay and require more frequent maintenance than other materials. Hardwood options offer greater durability but come at a higher cost.
Gabion
Gabion walls made from steel cages filled with rock, can be a cost-effective choice, particularly when suitable stone is sourced locally. They offer a distinctive look and good drainage but may not suit all residential settings. Labour and material handling can push up the final cost depending on the site’s complexity.
Concrete Blocks
Concrete block retaining walls are a popular mid-range option. They provide a clean, modern look and offer better longevity than timber. While basic block walls are relatively cost-effective, more intricate designs or taller installations can increase both material and labour costs.
What Are You Trading Off?
Durability
One of the biggest trade-offs in choosing budget retaining walls is that you compromise on durability. Cheaper materials, like treated pine sleepers, have an expected lifespan of about 20 years with regular maintenance. More robust materials like reinforced concrete sleepers are built to last at least 50 years.
Maintenance Requirements
When you choose the cheapest type of retaining walls, you end up paying less initially, but maintenance costs can pile up in the long term. Options like treated pine retaining walls are affordable but need extensive upkeep to maintain their appearance and structure. This includes yearly inspections and reapplication of stains and sealants.
Meanwhile, retaining walls with a higher initial cost, like concrete sleepers, need very little maintenance. This typically includes keeping them clean, clearing away vegetation, and addressing damage, if there is any.
Appearance
Most retaining wall types come with a basic finish and styled designs. When you look for the cheapest type, this usually refers to a basic finish without a decorative addition or method. This can affect your landscape and the overall appearance of your property.
Of course, choosing decorative finishes, stains, or textures adds to the final cost, whether you choose timber, concrete, or reinforced concrete sleepers
Structural Limits
Besides their appearance and durability, not all retaining walls are built to withstand the same loads. Retaining walls need to hold back large amounts of soil while allowing appropriate drainage, especially on uneven terrain. If you want to build taller retaining walls, timber sleepers won’t perform as well as concrete sleepers.
Hidden Costs to Consider
There’s more to the cost of retaining walls beyond materials and installation – you also pay various hidden costs. These include tasks like excavation, drainage, and site preparation. And if it’s not built properly, you might face permit issues or need a rebuild, all of which can cost money.
How to Choose the Right Wall on a Budget
No property owner wants to settle for a retaining wall they’ll need to replace in a few years. At the same time, you need to strike the right balance between long-term value and cost. Here are a few tips:
- Where To Save: Save money by choosing affordable materials like timber or concrete.
- Where Not To Save: Don’t skimp on drainage systems or wall foundations since this can lead to expensive repairs later on.
- DIY or Professional? You can consider DIY if it’s a small project, and you’ve completed similar jobs before. However, complex and large-scale jobs call for professional services.
Get Affordable Retaining Wall Options by Local Experts
Whichever type of retaining wall you choose, proper installation is key. Professionally installed retaining walls last longer and are far less likely to need early repairs or costly rebuilds.
At Jamesco Group, we take the time to understand your property, your goals, and your budget then recommend retaining wall solutions that offer cost-effective results without compromising on quality. Contact our Melbourne team today for expert advice and a free quote