Virtual inspections available

Sinking Floors.

If you’ve noticed your slabs and concrete floor sinking, slumping or pumping, this could indicate subsidence or voidage has taken place. Resinject can help re-level and re-support your floor by treating the cause directly.

Are your floors sinking? When this happens, it reduces the carrying capacity and limits the designed use of a slab, whether it be traversing with heavy machinery, heavy equipment or heavy storage for logistical and commercial warehouses. Sinking floors can not only cause significant structural problems but also downtime for homes and businesses.

What causes sinking floors?

Sinking floors and uneven floors are usually caused by voidage that then leads to subsidence. This means that the ground beneath your flooring may be moving in response to a variety of factors such as un-compacted fill, voidage from compromised plumbing services, such as storm water, sewer, or leaking water mains. This will result in the moisture content of the soils changing: in reactive clays, this will result in the ground expanding and contracting forming voids; and in sandy loams and sands, these factors will contribute to washouts, again compromising the load bearing on the slabs.

Other factors affecting the ground are poor drainage and poor site design that compromise the bearing capacity of the ground. Extreme weather factors can also impact on structures.

What are the signs of a sinking floor?

If you worried about sinking floors caused by subsidence or voidage, there are signs:

  • Cracks in your external and/or internal walls and ceilings
  • Cracks in external and/or internal concrete slabs, cement, steps or floors
  • Doors that are jamming against the floor or frame when you close them
  • Areas in your floor that slump or sound “hollow”
  • Variation of your “skirting boards” where the slab is lower than originally intended

Subsidence and voidage can represent a serious structural problem to the integrity of your home, business or worksite and a potential hazard to you and those around you. This can cause Work Health Safety issues relating to injuries sustained by forklift operators from traversing uneven slabs, not to mention the maintenance costs of the actual forklift.

If you notice your floors are sinking, call the experts at Resinject!

Is your site at risk?

Industrial and commercial sites can be established on compromised sub soils such as fill, reactive clays and sandy soils that have not been compacted sufficiently or have been compromised for one reason or another, be it washouts, drainage, or plumbing.

How to fix sinking floors

At Resinject we stabilise and support sinking floors by injecting our resin under the slabs, void filling the affected area, and increasing the load bearing capacity of the soils which are supporting the affected slab.

Part of the re-levelling process is re-supporting adjoining areas that could have been compromised due to the subsidence. Additionally, piers could also be installed in certain situations – “stitching” the adjoining slabs together is a standard operation when treating industrial slabs.

A long-term solution for your sinking floor

At Resinject we always provide long-term solutions to fix your sinking floors. This is because we address the root cause of the problem: subsidence and voidage. The high quality chemical resin that we use to stabilise your slabs and foundations is not only certified to Australian standard but so tough, durable and dependable that we provide a 50 year warranty on our product.

Frequently asked questions

Do I need to vacate the building whilst work is carried out?

Your Project Manager will discuss this potential need with you during the free site inspection and quoting. Sinking floor piers and other circumstances might necessitate your removing furniture and fittings so that we can work inside. But in most cases, there is no need for you to vacate the property, however it is preferable to have the work area cleared prior to our arrival.

How long will it take to complete the job?

Most residential jobs are finished within a few hours. Bigger projects may take over a day; your project manager will discuss the time frame as part of the free site assessment and quoting.

What does Resinject provide on site?

Our crew work from a self-contained mobile unit. We generate our own power and bring all the tools and products required to carry out the works.

What are the guarantees of your product?

Drawing on over 60 years’ combined experience, Resinject use a certified Australian Standard resin that is made in Australia. We can inject to a depth of up to 3.5 metres if necessary, providing the necessary support in the treatment zone
We guarantee our product for 50 years against shrinkage

What is the alternative to resin injection?

Traditional underpinning can be carried out as an alternate method. However, this generally requires a lot more time on site, bigger equipment, with more disruptions and ultimately more expensive.

How do you ensure perfect levelling?

On arrival, our crew start by confirming the levels recorded in the initial assessment. We then employ laser equipment to monitor the lifting closely throughout the process, ensuring levelling that is precise to the millimetre.

Drawing on over 60 years’ experience for dependable, lasting results - with Resinject you will get nothing less!

Partnering with you to protect your biggest assets