Why are cracks multiplying in 2026 in the South-East of France?

Episodes of intense drought, followed by heavy rainfall, cause clay soil movement that is particularly common in the Alpes-Maritimes (06) and Var (83). These moisture variations lead to differential settlement, which shows up as cracks in load-bearing walls, facades or floors. In 2026, experts are seeing a surge in structural disorders in both recent and older buildings, notably in Antibes, Cannes, Grasse, Nice and Toulon.
Warning signs you shouldn’t ignore
- Stepped or diagonal cracks on exterior walls
- Doors and windows that stick when opening
- Horizontal cracks with detached masonry joints
- Sagging slabs or floors
- Detached finishes (tiling, plaster)
- Contre-expertise assurance : quand l'expert de l'assureur sous-évalue les dégâts
- Dommages-ouvrage : les délais et la procédure de déclaration de sinistre
- RGA indemnisation sécheresse : la procédure CATNAT pas à pas
- Fissures sur maison : sécheresse, malfaçon ou défaut de fondation ?
- Normes parasismiques PACA 2026 : guide construction Antibes, Nice
- Malfaçon construction : responsabilité décennale Alpes-Maritimes (2)
- DPE 2026 Alpes-Maritimes : nouvelles règles et enjeux (2)
- Contre-expertise assurance : quand l'expert de l'assureur sous-évalue les dégâts
- Dommages-ouvrage : les délais et la procédure de déclaration de sinistre
- RGA indemnisation sécheresse : la procédure CATNAT pas à pas
- Fissures sur maison : sécheresse, malfaçon ou défaut de fondation ?
- Normes parasismiques PACA 2026 : guide construction Antibes, Nice
- Malfaçon construction : responsabilité décennale Alpes-Maritimes (2)
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Un désordre sur votre bien ?
Expert bâtiment indépendant à Antibes — 06 & 83. Photos analysées avant déplacement, rapport écrit avec causes et recours applicables.
Fast response across the Alpes-Maritimes and Var
Cassini Expertise travels throughout every municipality in the Alpes-Maritimes (06) and Var (83), including rural and coastal areas. We offer appointments within 48 hours and a detailed report within 10 business days. Our coverage area includes Antibes, Cannes, Grasse, Nice, Toulon, as well as towns such as Fréjus, Draguignan and Menton.
For any questions or to schedule an assessment, call us on 04 22 46 06 04. We answer personally and advise you on the next steps.
Conclusion: act before it’s too late
Cracks aren’t just a cosmetic issue: they can compromise a building’s structural integrity and its value. In 2026, with extreme weather events on the rise, preventive assessment has become essential. Whether you’re a homeowner, a property manager or a real estate professional in the Alpes-Maritimes or the Var, don’t wait for the damage to worsen.
Cassini Expertise supports you with reliable technical solutions and a free quote for any intervention in the 06 and 83 departments. Call now on 04 22 46 06 04.
For a property in Nice, discover our VEFA Nice expertise for handover assistance.
For a property in Cannes, discover our VEFA Cannes expertise for handover assistance.
Go further
- Contre-expertise assurance : quand l'expert de l'assureur sous-évalue les dégâts
- Dommages-ouvrage : les délais et la procédure de déclaration de sinistre
- RGA indemnisation sécheresse : la procédure CATNAT pas à pas
- Fissures sur maison : sécheresse, malfaçon ou défaut de fondation ?
- Normes parasismiques PACA 2026 : guide construction Antibes, Nice
- Malfaçon construction : responsabilité décennale Alpes-Maritimes (2)
- 📅 Updated on 24/07/2026 — By Cassini Expertise, independent building expert covering 06 & 83. Free quote: 04 22 46 06 04.
Go further:
Frequently asked questions
What causes cracks in houses?
Cracks can result from ground movement (clay shrink-swell), foundation defects, moisture variations, or vibrations. In the Alpes-Maritimes, drought and clay soil are common factors. An expert assessment identifies the exact cause.
How do I know if a crack is dangerous?
Structural cracks are generally wide (over 2 mm), run through the wall, or come with doors/windows that no longer close properly. Surface cracks are usually harmless. An expert can assess stability and recommend appropriate action.
What does a crack assessment cost in 2026?
The cost varies with the building’s size and the complexity of the case, generally between €500 and €2,000. In the Alpes-Maritimes, rates can be higher in high-demand areas. Assessments are often reimbursed by insurance when the claim is covered.
CECassini Expertise
Expert du bâtiment indépendant — Antibes (06·83·13·40)
📅 Mis à jour le 25/09/2026 — Cassini Expertise, expert bâtiment indépendant (06·83·13·40).