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Void Filling and Sinkholes

Voids or sinkholes are holes that appear in the soil matrix due to natural erosion, geological change, or digging activity in the area. Digging activity includes standard construction work, as well as mining or building.

A void or sinkhole can be a small hole needing simple soil stabilisation and filling or a more significant issue that results in cracked walls and issues with the drainage systems of the structures above. A void or sinkhole can also manifest in major collapses. These larger holes require a more industrial solution and additional support to prevent further occurrences.

Early signs of voids under concrete or sinkhole issues include jammed doors and windows, resulting in structural damage if not addressed quickly. If you are dealing with voids beneath a building, you will require void fill solutions to address foundation repairs and resin injection where necessary. Raise + Relevel can help.

It is essential to address a manmade void as these tend to be more severe. For example, those voids left behind in pipe abandonment or similar works must be filled. A void underground can result in soil destabilisation, water ingress, and subsidence, which increases the likelihood of fluids leaking in the surrounding area, which can cause ground collapse. Filling voids quickly, safely, and accurately is of the utmost importance to the surrounding area.

What You Need To Know

If you have a void or a sinkhole, you need to take steps to correct the issue. This is where you fill the voids to stabilise the area. Void filler comes in many forms, whether you prefer a chemical solution or a cementitious grout.

We don’t employ salespeople, so the person who visits your site to provide details of the job and a quote will also be the person tackling your project. Our team is experienced and knowledgeable enough to advise you on which solution is right for your particular void or sinkhole.

There are many reasons for sinkholes and voids. When there is infrastructure work in the area, whether it is building or mining, it can result in soil issues. There are also natural occurrences, such as flooding and earthquakes, that can result in major voids and sinkholes. These can appear suddenly but often develop over time. If there are mining operations in the area, there is land slippage, abandoned pipelines or tanks, water ingress or the soil is improperly filled or poorly compacted, there is a higher risk of voids and sinkholes.

Voids and sinkholes pose significant risks to both property and safety. Addressing these issues promptly with void filling solutions can prevent further damage and ensure the stability of foundations subsiding. Using advanced techniques like permeation grouting and slab jacking stabilises the affected area and also extends the lifespan of the structure, safeguarding it against future occurrences.

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Why Do You Need Void Filling?

The purpose of filling sinkholes and voids is to stabilise the ground around them. Whether it’s a tunnel, bridge road or a decommissioned structure, the solution aims to stabilise and re-support.

The R + R team has handled countless jobs filling voids, and we have the experience and expertise to tailor a solution to every situation. We handle work quickly, efficiently, and professionally and we always aim to provide you with the most cost-effective solution possible. While many people immediately look to a slurry fill as the cost-effective option, we believe in some circumstances polyurethane foam is more cost-effective. Different fill materials have different performance profiles. We suggest investigating the right solution for your situation.

R + R offers void filling solutions for projects of all sizes. Our range of void fill materials can address tunnels, pipelines, voids, sinkholes, basements, and any other infrastructure issues you may face. Our solution is so versatile, it doesn’t matter how difficult the issue is to reach – we can pump the void fill material without causing too much disruption.

Our methods include slab jacking, permeation grouting, and resin injection, which provide an effective remedy for foundations subsiding. If you notice structural symptoms like cracked walls, jammed doors, or uneven floors, it’s crucial to act swiftly. Ignoring these signs can lead to severe damage, compromising the integrity of the entire structure.

Our void filling techniques also include soil stabilisation to reinforce weak ground and prevent further subsidence. This ensures the foundation remains stable and secure once the voids are filled. By addressing the root causes of foundations subsiding, we help to maintain the longevity and safety of your property.

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Call Raise & Relevel Today For Void Filling & Sinkholes

The only way to address an unstable, unlevel or dangerous void or sinkhole is to fill it. While slab jacking is the solution, we offer to relevel a structure. As it addresses existing concrete slabs, there is no need to pour fresh concrete, which means it provides a cost-effectiveness that many other solutions do not. Our team simply pumps the resin as means of filling voids under concrete. However, some issues require us to fill voids in concrete more industrially.

Concrete void filling protects public buildings and can address unlevel buildings. Whether it’s a residential property or a large commercial project, our techniques ensure lasting stability and safety. Whatever your recent project entails, reach out to the R + R team in Sydney, Melbourne or Brisbane/Gold Coast to discuss your options when it comes to drainage solutions, re-levelling, permeation grouting, and beyond.

In addition to void filling, our services include soil stabilisation, underpinning, and foundation strengthening. We use advanced materials and methods tailored to meet the specific needs of each project, ensuring that every job is completed to the highest standards. Our commitment to quality and customer satisfaction makes us a trusted partner for all your structural repair and maintenance needs.

Get in touch with us today, and a member of our team will visit your site to assess the situation and determine the right course of action.

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Why Raise + Relevel?

Better.

Better quality workmanship for a better price – R+R delivers value to our customers by offering the highest quality services at the most competitve price.

Experience.

Over 100 years of genuine experience in relevelling structures – we are ground surgeons.

Guaranteed.

We stand behind the quality of our products and workmanship. Our warranty provides 100-year warranty on our resin products and 50-year warranty on our workmanship – If the problem returns, we return.

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FAQ

Your home is everything to you and your family, so before going ahead with any subsidence repairs, we’ve put together a list of questions our customers should ask:

We offer advice, not sales, so we don’t employ salespeople. The person who quotes your job does your job, and has been relevelling homes like yours for over 15 years.

Our specialists have raised over 7,000 homes in total.

If the problem returns, we return. We provide a fully guaranteed warranty on materials and workmanship.

At R+R, we have no call centres, no sales people and minimal overheads, all of which enables us to provide the best value for our customers.

R+R will deliver you better value, through real experience, with guaranteed results.

1
of Combined Experience
1
Homes Relevelled
1
Guaranteed

At Raise + Relevel, experience matters. With a century of combined expertise and over 7,000 homes re-levelled, we deliver lasting results—guaranteed.

100% Product Guarantee

Quality materials built to last

50-Year Workmanship Guarantee

Proven expertise you can trust

More Info

Every home is unique. We provide tailored solutions at the best value, ensuring stability without compromise.

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