Project: A multi-storey extension to a private house
Location: Nizhny Novgorod
Year: 2024
Duration: 2 working days
Technology: DEEP INJECTION & SLAB LIFTING
How to stop deformations and save your house without extensive repairs
Problem
Development of subsidence of the building foundation
Solution
Stopping the development of cracks and leveling structures
Summer 2024 became an unexpected trial for the owner of a new house in Nizhny Novgorod. The house, which was supposed to become a symbol of stability and comfort for the family, suddenly turned into a source of anxiety and sleepless nights.

This was a modern three‑storey cottage in a picturesque area of the private sector. A monolithic slab foundation, as the builders assured, guaranteed reliability, and plans for cosmetic renovation and a large extension were already taking shape. It seemed that the story was just beginning, but reality made its own adjustments.

Just a few weeks after the completion of the main work, the owner noticed that the walls were beginning to "speak". The first thin cracks appeared on them, like barely noticeable wrinkles on a young face. They were not dangerous at first glance, but every day they became wider. Along with them, anxiety grew. The situation, which seemed like a trifle, quickly escalated into a threat.

The reason turned out to be that beneath the slab lay a deceptively calm but weak soil. Mistakes during backfilling and natural features of the site led to the fact that the attached part of the building began to slowly sink down, like a slowly sinking ship. Two months – and the cracks already resembled a warning: "a little more, and it will be too late".
Problem
The owner realised: action was needed urgently. Thus began the acquaintance with our company.
We arrived at the site not just as engineers, but as doctors entrusted with the health of an entire house. The diagnosis required precision. To begin with, we carried out an instrumental survey of the foundation and soils. We used dynamic probing – a method that allows one to "read" the behaviour of the soil like a book.

The results confirmed the worst fears. Beneath the foundation footing lay loosened layers – loose, unstable, incapable of bearing the load of a three‑storey house. Moreover, they turned out to be waterlogged, which is another sign of instability.

For us, the picture became clear: the foundation was standing not on a solid support, but on a shaky cushion that was gradually settling. That is why the house began to deform.
The project in detail
The company's engineers immersed themselves in the task. We knew: there could be no simple solutions here. Relaying the slab or making new supports would mean a long, expensive and traumatic process for the building.

Targeted and effective intervention was necessary. We chose the technology of deep injection of Uretek polymer material (Deep Injection).

The essence of the method is simple only in words: a special resin is fed deep into the soil through small holes and begins to work where the soil itself could not cope. It fills voids, binds particles, and creates a new strong structure. As a result, the ground beneath the foundation turns into a monolithic mass capable of supporting the weight of the building without deformation.

It was this approach that made it possible not only to stop the destruction but also to restore strength to the foundation and balance to the house.
Solution
When the decision was made, we agreed on a convenient time with the client.
The work began without lengthy preparations. The house continued its normal life, and the owners did not have to leave it. Neither excavation nor dismantling of structures was required. Everything looked almost ordinary – a few engineers, equipment, and carefully marked drilling points. But it was precisely in this "ordinariness" that the power of modern technology lay.

We drilled holes around the perimeter of the problem area and installed injection tubes. Through them, the Uretek polymer material was introduced deep into the foundation.

The process resembled jewellery work. The resin, still liquid during injection, began to expand within seconds, compacting the weak layers and filling voids. Using laser instruments, the engineers tracked every millimetre. Where the ground had recently "breathed" with voids, new strength was born.
And at some point the owner saw for himself – the cracks seemed to stop "living". First they froze, and then began to close, as if the building was returning to its original shape.

All of this took just two days. The house, which had recently seemed on the verge of serious problems, regained its confidence. The owner was able to return to his plans: renovation, extension, comfort. Most importantly, the foundation once again became what it should be: a reliable basis for life.
This story for us is not just a work case. It clearly shows how modern technologies can change the fate of buildings. Where months of repair and huge expenses would have been required before, today just a few days and the right engineering solution are enough.

For the family from Nizhny Novgorod, this was a victory over anxiety and uncertainty. For us, it is confirmation that every building can be saved if you combine science, experience and responsibility.
Standard projects and pricing
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