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House restumping, also known as reblocking or underpinning, is a crucial process that involves replacing or repairing the stumps that form the foundation of a home. Over time, these stumps can deteriorate due to various factors such as soil movement, water damage, and general wear and tear. Maintaining a solid foundation cannot be overstated; it ensures the structural integrity of the entire building and significantly impacts your home’s long-term value.

Regarding house restumping, one of the most vital decisions homeowners face is choosing the right material for the job. The material you select will not only determine the durability of the foundation but also influence the property’s cost, maintenance, and even the resale value. 

According to experts at, the three most commonly used materials are concrete, timber, and steel. Each has its advantages and disadvantages, and the best choice often depends on various factors, including the type of structure, local building codes, and personal preferences.

House Restumping Materials

In this comprehensive guide, we’ll dive deep into the pros and cons of these materials—concrete, timber, and steel—providing you with all the information you need to make an informed decision for your house restumping project.

Concrete Stumps



A primary benefit of opting for concrete stumps lies in their outstanding durability. Concrete excels in withstanding the rigours of wear and tear, positioning it as a robust, long-term investment for homeowners concerned with fortifying their foundation.

Low Maintenance

Another advantage of concrete is its low maintenance requirements. Once installed, concrete stumps generally need little upkeep, allowing homeowners to save time and money in the long run.

Resistance to Pests

Unlike timber, concrete is resistant to pests such as termites, making it a safer choice in areas where pest infestations are a concern.

Good for Heavy Structures

Concrete has the strength to support heavy structures, making it ideal for larger homes or buildings with multiple stories.



The main drawback of concrete is its high cost. Both the material and installation are generally more expensive than other options like timber.

Environmental Impact

Concrete production is energy-intensive and emits significant CO2, which may be better for those looking to minimise their environmental footprint.


Concrete is rigid and may need to be better suited for all soil types. In areas where soil movement is common, the rigidity of concrete may cause issues over time.

Ideal Scenarios for Using Concrete

Heavy Structures

Concrete is a sensible choice if you have a large home or a multi-story building due to its high load-bearing capacity.

Wet Climates

Concrete performs well in wet conditions, making it ideal for homes located in areas with high rainfall or frequent flooding.

Building Codes

In some jurisdictions, local building codes may favour or even require concrete stumps, so it’s essential to check these regulations when deciding.

Timber Stumps



Timber is generally cheaper than concrete and steel, making it a cost-effective option for those on a budget.

Easier and Quicker to Install

Installation of timber stumps can be quicker and less labour-intensive compared to other materials, leading to lower labour costs.

Natural Aesthetic

For those who prefer a more natural look, timber offers an aesthetic that complements various architectural styles, especially traditional homes.


Susceptible to Rot and Pests

One of the significant drawbacks of timber is its susceptibility to rot and termite infestation, which could compromise the integrity of your home’s foundation over time.

Regular Maintenance Required

Timber stumps require frequent maintenance, including regular rot and pest damage inspections.

Limited Lifespan

Compared to concrete and steel, timber has a shorter lifespan and may need to be replaced sooner, incurring additional long-term costs.

Ideal Scenarios for Using Timber

Budget-Conscious Projects

Timber may be the most economical choice if you’re on a tight budget.

Lighter Structures

For smaller, lighter homes, timber can provide adequate support without needing a more robust material.

Aesthetic Preferences

Timber is an excellent choice in areas or neighbourhoods where a natural, rustic appearance is desired.

Steel Stumps


Extremely Durable

Steel offers superior durability and can last for decades with proper maintenance, making it a long-term investment.

Low Maintenance

Like concrete, steel requires little maintenance, which can be a significant advantage for busy homeowners.


Steel stumps are versatile and can support heavy and light structures, offering a one-size-fits-all solution.



Although less expensive than concrete, steel is still costlier than timber, particularly when considering the price of anti-corrosion treatments.


If properly treated and maintained, steel can stay strong over time, which may weaken the foundation.

Ideal Scenarios for Using Steel

Commercial Structures

Due to its high load-bearing capacity, steel is often preferred for commercial buildings.

Harsh Weather Conditions

Steel performs well in various climates and is particularly useful in areas prone to extreme weather conditions.

Longevity and Minimal Maintenance

Steel is an ideal option for projects where long-term durability with minimal maintenance is a priority.

Comparative Analysis

Regarding cost, timber generally takes the lead as the most budget-friendly option, particularly when considering installation expenses. Concrete typically ranks highest in terms of both material and installation costs, while steel falls somewhere in between, depending on factors like anti-corrosion treatment.

House Restumping Materials

Breakdown of Costs for Each Material, Including Installation

  • Concrete: High material cost, higher installation cost due to labour and equipment
  • Timber: Lower material and installation costs
  • Steel: Moderate material cost, additional costs for anti-corrosion treatments


In terms of durability, steel usually outlasts both concrete and timber. A well-maintained steel foundation can last for several decades. Concrete also offers excellent durability but may be prone to cracking in some conditions. Timber, while durable enough for lighter structures, has the shortest lifespan and may need replacement within 20-30 years.

Comparative Lifespan of Each Material

  • Concrete: Several decades of proper care
  • Timber: 20-30 years, depending on maintenance and environmental conditions
  • Steel: Several decades, potentially longer, with proper anti-corrosion treatment


Steel and concrete require the least amount of long-term maintenance. Timber requires regular inspections for rot and pest damage and may need periodic treatments to enhance its lifespan.

Long-term Care Requirements for Each Material

  • Concrete: Minimal; occasional inspection for cracks
  • Timber: Regular inspections and treatments for rot and pests
  • Steel: Minimal but needs anti-corrosion treatments

Environmental Impact

From an environmental standpoint, timber is usually considered the most eco-friendly option, especially if sourced from sustainable forests. Concrete has a high carbon footprint due to the energy-intensive manufacturing process. At the same time, the environmental impact of steel depends on various factors, including the energy source used in its production.

Comparison of Eco-Friendliness of Each Material

  • Concrete: High environmental impact
  • Timber: Lower impact, especially if sustainably sourced
  • Steel: Moderate impact, can be recycled

Other Factors to Consider

Always consult local building codes before proceeding with a restumping project. Some jurisdictions may have specific requirements or limitations regarding the materials you can use.

Soil conditions can significantly affect the performance and longevity of your chosen material. For instance, clay-heavy soil may not be ideal for concrete due to its rigidity.

A well-executed restumping job can enhance the resale value of your property. Concrete and steel, given their durability, are often more appealing to future buyers.

Choosing the right material for your house restumping project depends on cost, durability, maintenance, and environmental impact.

  • Concrete is a good option for those looking for durability and minimal maintenance, but has a higher cost and environmental impact.
  • Timber is ideal for budget-conscious homeowners and those who prefer a natural aesthetic but require regular maintenance and a shorter lifespan.
  • Steel offers the best of both worlds in terms of durability and maintenance but can be expensive initially and needs proper treatment to prevent corrosion.

Your final choice should align with your specific needs, the type of structure you have, and other local considerations like soil type and building codes. By carefully weighing the pros and cons of each material, you can make an informed decision that best suits your house restumping project.


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