Saint-Mandrier
Strengthening of a coastal rock face — shotcrete & anchors.
Special foundations · Strengthening · Underpinning
Understand the ground,
secure the structure,
make the works last.
Specialists in deep foundations, underpinning and soil strengthening. We work for both professionals and private clients, even on difficult-access sites.
5.0 out of 5 on Google
Alpes-Maritimes · Var · Provence-Alpes-Côte d’Azur
Damaged & cracked structures
Ten-year structural warranty (décennale)
Our services
Three main areas of work
Special foundations
Micropiles & underpinning
Installation of micropiles (Type II, III, IV) and micro-Berlin walls to stabilise your existing structures and foundations.
Learn more
Rope-access works
Difficult-access works
Rope-access methods for installing HLE mesh and work at height beyond the reach of conventional plant.
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Strengthening & retaining
Nailed walls & shotcrete
Securing slopes and rock faces through soil nailing, ground anchors and the application of shotcrete (dry or wet process).
Learn moreOur approach
Understand before acting
Every crack, settlement or instability has a cause. We analyse the structure and its surroundings before defining the most appropriate solution, working alongside engineering firms and experts.
Diagnosis and analysis
Geotechnical analysis to define the right foundation solution (micropiles, soil nailing).
Design & Quote
Load calculations, choice of reinforcement and a transparent costed proposal.
Execution & Monitoring
Carrying out the works in compliance with safety standards, followed by site handover.
Your underpinning partner
Cracks appearing? Is your ground moving?
We step in to save and future-proof your building assets using proven micropile and connecting-beam techniques.
- Ten-year structural warranty (décennale).
- Compact drilling equipment suited to confined spaces.
- On-time delivery.
Ten-year structural warranty (décennale)
Our expertise
All our know-how, from the ground to the structure
Micropiles
Drilled and grouted micropiles: underpinning, extensions and building on low-bearing ground.
Underpinning
Underpinning with micropiles: cracked houses, settlement, drought damage on clay soils.
Berlin & micro-Berlin walls
Berlin and micro-Berlin walls: basements, car parks and excavations on property boundaries.
Structural strengthening
Strengthening existing structures: foundations, floors, load-bearing walls, before renovation or an extra storey.
Floor strengthening
Strengthening timber, concrete and steel-joist floors: change of use, sagging floors, renovation.
Concrete & masonry repair
Repair of damaged concrete and masonry: corroded reinforcement, cracks, joints, old walls.
Load-bearing wall openings
Specialists in load-bearing wall openings for renovation and construction.
Stairwell openings
Stairwell openings in concrete, timber or steel-joist floors, with trimmer frame and propping.
Soil nailing & nailed walls
Soil nailing and nailed walls: retaining slopes and excavations, stabilising existing walls.
Ground anchors
Drilled and grouted ground anchors: stabilising retaining walls, excavation walls and slopes.
Shotcrete
Dry-mix or wet-mix shotcrete: nailed walls, rock faces, slopes and structural repair.
Retaining works
Retaining works: walls, nailed walls, Berlin walls and gabions, for sloping ground and unstable slopes.
Protective mesh installation
Pinned mesh, draped mesh and rockfall nets: protection against falling rocks on slopes and cliffs.
Rope-access works
Rope access works: scaling, anchors, mesh and shotcrete on rock faces, cliffs and slopes.
Work at height
Work at height on rock faces, slopes and structures: scaffolding, aerial platform or ropes.
Antonio Sirianni
Founder & managing director
Nice metropolitan area · Alpes-Maritimes
LinkedIn profile
The director
Know-how born on site
At the head of Sirianni Fondations & Travaux Spéciaux, which he founded in 2023, Antonio Sirianni brings more than fifteen years of experience in special works and soil investigation. A qualified site manager trained in Italy, he first learned the trade within the family business, before continuing in France as a site manager at SOL ESSAIS (2014–2018), in direct contact with boreholes and French and Monegasque geotechnics — a hands-on schooling from which he draws one conviction: understand the ground before acting.
With a solid grounding in civil engineering and a sound understanding of how structures behave, he has mastered difficult-access interventions, where conventional plant cannot reach. Running every site with the same demand for quality, safety and durability, he is now rounding out his career with an engineering degree specialising in Building and Civil Engineering, currently in preparation at the CNAM.
“Sirianni Fondations: a human-sized company that listens to its clients in order to bring quality solutions to their various challenges.”
Founder & managing director · since 2023
15+ years on site
Grounded in soil investigation
Civil engineering degree · CNAM
Why choose us?
A technical partner: responsive and safe
1
Responsiveness
Emergency call-outs available.
2
Versatility
From private clients to major construction sites.
3
Expertise
Teams trained in rope-access works.
4
Safety
Strict compliance with HLE and concrete standards.
Projects
Real-world sites, right across PACA
AmpusAntibes 2Apt 3Auribeau-sur-SiagneBendejunCagnes-sur-MerCarpentrasContesDrapÈze 2GargasGiletteGrasse 2La Colle-sur-Loup 2La TurbieLe MuyLe TignetLucéramMenton 2MeyrarguesMouans-SartouxMouginsNice 9PeymeinadeRoussillonSaint-Laurent-du-VarSaint-Mandrier-sur-MerSaint-Paul-de-VenceSaint-Raphaël 2Saint-Saturnin-lès-AptSpéracèdesValbonneVilleneuve-Loubet
Spéracèdes
Stabilisation of a rocky slope — soil nailing, anchors & mesh.
Canal de la Siagne
Masonry retaining works along the canal — hydraulic structure.
Bandol — Beau Rivage
Gabion retaining works by the sea.
Micropiles — villas (06)
Underpinning of villas.
Slopes & retaining walls
Soil nailing, mesh, shotcrete.
Detailed case studies (problem · solution · result, before/after photos) are in preparation.
Who we work with
A partner for everyone involved in the built environment
Geotechnical engineering firmsStructural engineering firmsInsurance expertsCourt-appointed expertsManaging agentsArchitects & project supervisorsInspection bodiesPublic authoritiesMain contractorsPrivate clients
Areas we cover
Special foundations and strengthening across Alpes-Maritimes and Var
Based in Saint-Laurent-du-Var, we work across the whole PACA region — from the coast to the hinterland, including steep sites and difficult-access ones.
06Alpes-Maritimes
36 chantiers réalisés — nos fondations dans les Alpes-Maritimes
83Var
5 chantiers réalisés — nos fondations dans le Var
84Vaucluse
7 chantiers réalisés — nos fondations dans le Vaucluse
Saint-Laurent-du-VarNiceMonacoCagnes-sur-MerAntibesCannesGrasseLe CannetVenceMouginsMentonMandelieu-la-NapouleSophia AntipolisToulonHyèresFréjusSaint-RaphaëlDraguignanBrignoles
G2AVP.com
Member of the G2AVP network
Understand the ground before acting, backed by data
Sirianni Fondations & Travaux Spéciaux is a member of the G2AVP network. As such, we have access to documentary resources that cross-reference the official public subsoil data to better understand your ground — and tailor our foundation and strengthening solutions for safer, more durable works.
Discover the G2AVP networkResources we draw on to read your ground
- BRGM geology — detailed geological map and lithology of the formations
- Nearby geotechnical boreholes (BSS / InfoTerre)
- Satellite ground movement (EGMS Copernicus)
- Natural hazards — clay shrink-swell, Géorisques
- IGN mapping and elevation data
Your structure deserves a technical opinion
From first contact to quote, you speak directly with the people who will carry out the works — precise, concrete, straightforward.
Phone06 59 90 51 91
Emailcontact@sirianni-travaux.fr
Request a quote
Address113 Allée des Cigales, 06700 Saint-Laurent-du-Var