Is your home threatened by cracks?
TerraStab continuously monitors and stabilizes your soil to protect your home from clay shrink-swell subsidence (RGA).
Avoid costly repairs and protect the value of your property.
TerraStab changes the game.
Thanks to a groundbreaking technological approach,
stabilizing a building's soil is no longer limited to heavy construction work.
Our solution opens a new path, accessible, precise and durable.
Technology
Precision
Accessibility
Durability
All the solutions against RGA
There are several ways to fight clay shrink-swell subsidence. Every situation is different. Here's an objective comparison to help you choose.
The most affordable and least invasive.
Smart soil moisture regulation via connected sensors + irrigation stakes. Maintains stable moisture around the foundations, eliminating shrink-swell cycles.
Pros
- The most affordable
- Non-invasive — no major works
- Treats the cause: regulates soil moisture
- Connected: real-time monitoring
- Preventive and curative
Cons
- Not yet deployable on deep foundations
- 3G connectivity required
Invasiveness
Effectiveness
Connected technology, designed to prevent and correct the effects of RGA.
TerraStab installs shallow-anchored probes around the house, connected to a smart irrigation system, itself linked to our servers. Driven by a proprietary algorithm, the system triggers targeted water inputs that keep the clay at a stable moisture level — essential to prevent cracks or stop them from worsening.
Hydro-stabilization is a solution based on unsaturated soil mechanics, an established scientific discipline.
International scientific literature has highlighted the central role of moisture in clay stability. TerraStab draws on this published knowledge to offer a practical application for homeowners.
How does it work?
Connected geotechnical analysis
Satellite data, RGA maps, algorithmic modeling: we assess how the clay behaves on your property.
Hygrometric probe installation
Patented probes, discreet and integrated into the home's surroundings, installed up to 1.20 m deep. No heavy works, no foundation rework.
Smart automated hydro-stabilization
The system adjusts soil moisture in real time, based on measured conditions, to durably stabilize the structure.
Preventive
Prevents the first signs from appearing (cracks, misalignments). Ideal before any damage occurs.
Corrective
Stabilizes homes already affected, limits worsening, avoids heavy and costly works.
Connected geotechnical analysis
Hygrometric probe installation
Smart automated hydro-stabilization
Preventive
Corrective
A project backed by institutions that matter.
TerraStab is supported by public and regional bodies committed to innovation, sustainable housing and climate resilience. This support strengthens our independence, our ambition, and our ability to deploy the solution wherever it's needed.
These partnerships reflect the soundness and viability of the TerraStab project, as well as its potential for positive impact on French housing.
Clay doesn't stabilize itself.
Neither does your home.
Droughts are getting longer, more frequent, and more intense.
This mechanically worsens the shrink-swell phenomenon — year after year.
Stabilizing now means avoiding heavy repairs… and lasting devaluation.
1 in 2 homes
in clay-rich areas affected by 2030
Up to 30%
of property value can be lost
Every year
the risk worsens with climate change
Frequently asked questions
All the answers to the essential questions to understand TerraStab and make the right choice for your home.
Continuous monitoring for optimal effectiveness.
Once installed, your TerraStab system is monitored in real time. You benefit from 24/7 remote monitoring, regular reports on how your land is evolving, and immediate alerts in case of anomaly. Our technical team adjusts the settings to maintain optimal protection all year round.
Clay shrink-swell subsidence news
Analysis, data and advice published by the TerraStab team.
Refus CatNat RGA : Constituez un dossier technique solide pour vos recours
Face au refus de reconnaissance de l'état de catastrophe naturelle pour le RGA, les propriétaires ne sont pas démunis. La clé réside dans la constitution d'un dossier technique robuste.
Experts RGA : Une qualification obligatoire pour fiabiliser l'évaluation des sinistres
La gestion des sinistres liés au retrait-gonflement des argiles (RGA) entre dans une nouvelle ère. Un décret et un arrêté du 9 août 2026 imposent désormais une qualification professionnelle aux experts d'assurance, avec une formation initiale d'au moins 70 heures.
Expertise RGA : le guide complet pour naviguer entre fissures et assurances
Les fissures liées au retrait-gonflement des argiles (RGA) sont un défi majeur pour les propriétaires. Naviguer le processus d'expertise et interagir avec les assurances demande une préparation rigoureuse. Ce guide vous offre les clés pour comprendre et agir.
Fonds de prévention RGA 2026 : L'aide au diagnostic s'élargit, mais la 'prévention' doit-elle attendre 5mm de fissures ?
Le Fonds de prévention RGA adapte ses conditions en 2026, offrant une aide précieuse au diagnostic. Cependant, l'élargissement de l'éligibilité aux travaux aux maisons présentant des fissures jusqu'à 5 mm de largeur soulève des questions fondamentales sur la nature même de la prévention face au retrait-gonflement des argiles.
RGA : 200 000 € de travaux et les fissures réapparaissent, l'impasse des solutions curatives ?
Des propriétaires se retrouvent face à des fissures récurrentes malgré des centaines de milliers d'euros investis en réparations. Cet article explore les limites des solutions curatives face au retrait-gonflement des argiles.
Loi ELAN et RGA 2026 : Quelles obligations et responsabilités pour l'immobilier ?
Depuis le 1er juillet 2026, la carte RGA étendue et la loi ELAN imposent de nouvelles obligations cruciales aux vendeurs de terrains non bâtis et aux constructeurs. Une vigilance accrue est indispensable pour tous les acteurs de l'immobilier.
Let's talk about your project
A TerraStab expert reviews your situation and gets back to you within 24h.
Contact us directly
contact@terrastab.fr
Response within 24h — we review every request carefully, even complex cases.
No obligation — free diagnosis, free quote, no sales pressure.