Underpinning Melbourne

Underpinning is the process used to increase foundation depth, stabilise the footing, and repair faulty footings on double brick or brick veneer homes.
The process of underpinning requires a soil test and a structural engineer design and certification. To make the process as stress free as possible for you Southern Stumping and Underpinning will take care of obtaining all the necessary documents required.
You may require underpinning for a number of different reasons; The soil beneath your foundation my have washed away due to poor site drainage or leaking pipes. Tree roots can also play a major part in affecting and moving your homes foundations. Another common problem is the original foundation may have been of a lesser standard than is required today.

  • House Reblocking & Restumping Melbourne

  • Underpinning Melbourne

  • Screw Piling Melbourne

  • House Foundation Melbourne

Request A FREE Estimate

What is Underpinning

Reinforcing and fixing your foundation is a critical part of prolonging the life of your home and improving safety. Homes built in some parts of Sydney may experience ground instability and the foundation can sink leading to cracks on the walls or concrete slabs.

You might also notice the doors and windows don’t close. All these are signs that your foundation is growing weak. If not repaired, can result in extensive damage to the rest of the structure.

At Geotech Built, we have decades of experience offering underpinning Sydney services to improve the state of your foundation by placing pins of concrete under the moving building to stop farther movement and secure it.

Restore what you love with a builder you can trust

Our core values are mutual trust between our employees and our customers and commitment to safety, quality and of course the environment.

  • Expertise in building

    Restumping Melbourne have a smart approach for modern home design and implemented technologies for their success.

  • Building and Engineering Knowledge

    Extensive experience with the best techniques, materials and tools.

  • Problem-Solving and Decision-Making Skills

    Working several hours on their feet and making fast decisions

  • Attention to detail

    Keep track of measurements and evaluate modifications if necessary

Underpinning saves the cracks in your house

Cracks may have occurred due to differing reasons.

Original foundations of the building is simply not strong, stable enough.
The supporting soil may have changed its bearing capacity. For example water may have penetrated the area.
New construction may require excavation close to the existing footings, thereby reducing their structural strength as a supporting agent.
It is simply more economical to fix the existing then to build a new structure. For example, the floor slab of the house may have sunk 50 mm. Rather than rip it up and replace it. One can just hydraulically raise by jacking and underpin it with  non shrink grout.
Underpinning is achieved by strengthening the bearing capacity of the soil by injecting grout, or by increasing the area of the footing itself or putting a mass concrete footings or combination concrete, steel structures under the existing footing. Micro piling is quite typical.

Mouse Highlight Overlay 2020-11-07 13.30.55
Google five star seo agency
Katie Sills
Katie Sills
a month ago

Great company to deal with and excellent staff. Our company prides itself on customer service and great to see a company as Restumping Melbourne with our core values. Recommend anytime!!

tom cook
tom cook
3 months ago

Thank you so much Restumping Melbourne. I bought stairs stringers and treads back in December. The house is nearly finished and they look great! The sales rep(whose name I have forgotten, sorry) worked out the cheapest freight to Melbourne.They are simple and look great!

michael bishop
michael bishop
a year ago

The guys at Resrumping Melbourne are absolutely brilliant! Can’t fault them. Great service, responsive, full of advice and just a brilliant produce as well! Used them several times now and will keep on buying in the future! Top stuff Bib and Bob!!!

Sam Goyder
Sam Goyder
a month ago

Love using the product for my business, easy to install use and understand. Wouldn't consider going anywhere else for house stumps or stringers!!!!


  • Timber and brick supports can be re-engineered with quality steel and we use a wide range of common steel profiles to aid our effective solutions.

  • Steel is an effective barrier resisting damage from termites, fire and corrosion (when galvanised and installed properly).

  • Houses can be hydraulically raised to allow safe replacement of problematic failing supports. Concrete footings can also be replaced as and when required and couple this with an engineered telescopic replacement column. A problem that looks tough to repair can be turned around with these stage by stage steps.

  • All affected areas are zinc primed, and then top coated to seal off exposure to the elements.

  • Most supports are made to measure and are fabricated in our premises and then sent to industrial galvanisers for hot dip treatment to the inside and outside walls of all sections. 


The most common method is traditional mass concrete underpinning - a simple technique that involves excavating a segment of ground below the existing building foundation in controlled stages, to a depth where suitable bearing strata exists.

Underpinning a house is the process of strengthening the building's foundations. This can be required as a result of subsidence (more on this later); the addition of extra floors (including extensions above adjoined garages); or inadequate initial construction. It's time consuming and expensive to complete.

If the underpinning isn't installed correctly, it will be less effective, or even fail altogether. In these circumstances, it may not be sufficient to protect against a return of the subsidence, heave or whatever the original problem may have been.

There is a general consensus among architects, engineers, and construction workers that there are three primary types of underpinning:
  • Mass Concrete Underpinning/Mass Pour.
  • Beam and Base Underpinning. 
  • Mini-piled Underpinning.

Underpinning with screw piles and brackets can be employed where traditional underpinning is too impractical, owing to the need to excavate to an excessive depth, or where there's no space to get a piling rig close to the property.

Brands we partner & work with

Scroll to Top