Renforep

What Renforep does

Renforep is a French specialty construction contractor focused exclusively on the repair, reinforcement, and lifting of building structures in concrete, timber, steel, and historic masonry. The firm operates as a wholly-owned SASU subsidiary of Groupe Cassous S.A.S. (RCS Bordeaux, B 310 776 299), having originated as a specialized activity within TEMSOL, the group's foundation engineering entity. Headquartered in Mérignac (Bordeaux) with regional offices in Couëron (Nantes) and Viry-Châtillon (Paris), Renforep delivers services across France through a three-office footprint and serves property owners, homeowners' syndicates, public institutions, industrial operators, and renovation firms.

The company's service portfolio spans three core lines — repair and reinforcement of structures, structural lifting (relevage) to correct foundation settlement, and emergency safety stabilization (mise en sécurité d'urgence) — supported by a toolkit of advanced techniques. These include carbon fiber reinforcement (CFRP lamellae and fabrics), shape-memory steel plate systems (Re-Plate, Re-Fer) that apply approximately 4 tonnes of pre-stress per plate when heated, hydraulic jacking with up to 7 independently controlled support points, resin injection, bored tie rods for masonry lateral restraint, and the proprietary NOUBAU galvanized steel profile system designed for confined-space installations. The firm also deploys electronic inclinometers for real-time structural surveillance and uses 3D laser scanning to drive CNC-cut LVL reinforcements on damaged timber structures. Method-specific execution is governed by technical studies from external structural engineering consultancies (IDBA, Abak Ingénierie, ACE Structure, GRIF Ingénierie, QUARCO) and complemented by sister-company TEMSOL for micropile foundations.

Renforep generates revenue through project-based professional services contracts covering labor, materials, engineering, and equipment, priced on a quote basis with no public tiering or subscription models. Go-to-market combines direct field sales through its three regional offices, a referral network of engineering and renovation partners led by COREN, and participation in public procurement (marchés publics) for government and institutional clients. Notable engagements include structural reinforcement for the Conseil Général de la Gironde (Collège Henri Dheurle), carbon fiber slab strengthening for IPVF at Palaiseau, custom steel force-leg reinforcement of a cleanroom for CNRS Toulouse, and emergency structural lifting for residential buildings settled by up to 20 cm in partnership with TEMSOL and COREN.

Name

Renforep

Legal name

Renforep SASU

Website

https://renforep.com

Company type

Private

Operating status

Operating

Headcount range

1–10 employees

Short description

Renforep is a French specialty contractor that repairs, reinforces, and lifts building structures in concrete, timber, steel, and historic masonry. The firm serves property owners, syndicates, public institutions, and industrial operators across France via three regional offices, operating as a subsidiary of Groupe Cassous.

Ownership category

akta.pro rank

Product category

Structural Repair and Reinforcement Services

NAICS

Poured Concrete Foundation and Structure Contractors (23811), Structural Steel and Precast Concrete Contractors (238120)

SIC

Construction - Special Trade Contractors (1700)

akta.pro primary industry

Disaster Recovery & Restoration General Contracting (IMAFAAAJ)

akta.pro secondary industries

Temporary Works & Shoring (Sheeting, Bracing, Cofferdams) (IMAFAKAI), Structural Repair & Framing Reconstruction (HSAPAOAG)

Keywords

• Structural repair services
• Building reinforcement works
• Structural lifting
• Emergency building stabilization
• Heritage structural restoration

Headquarters

HQ city

Mérignac

HQ country

France

HQ region

Europe

Offices3 records

Markets served

GTM type

B2B

Offering type

Services

Cost components

Personnel, Operations, Supply Chain, Technology or R&D, Marketing or Sales, Infrastructure

Revenue model

1. Professional Services — Structural Repair & Reinforcement: Renforep generates revenue through project-based professional services contracts for structural repair, strengthening, and emergency stabilization of buildings. Projects range from short-duration emergency call-outs (days) to multi-month structural rehabilitation programs. Clients include private property owners, housing associations, public institutions, and property management syndicates. Revenue is derived from labor, materials, engineering, and equipment usage bundled into project fees.

Go-to-market motion1 record

Distribution channels4 records

Marketing channels6 records

Core offering

Renforep is a specialized French contractor that diagnoses, repairs, reinforces, and lifts building structures (concrete, wood, metal, and masonry) through three core service lines: structural repair and reinforcement, structural lifting (relevage) using hydraulic jacks, and emergency safety stabilization. The company delivers project-based engineering services, leveraging advanced techniques such as carbon fiber reinforcement, shape-memory steel systems, hydraulic jacking, and proprietary galvanized profiles, to preserve existing structures rather than demolish and rebuild them.

Product overview

Renforep is a specialized construction company offering three core services: repair and strengthening of structures (concrete, wood, metal, masonry), structural lifting, and emergency safety. The company operates as a single integrated service provider focused on structural preservation, utilizing advanced techniques including carbon fiber reinforcement, steel memory form systems (Re-Plate), hydraulic jacking, and specialized galvanized steel profiles (NOUBAU). Services are delivered through a network of regional agencies in Mérignac (Bordeaux), Nantes, and Paris, with support from parent company TEMSOL for foundation work. The company serves residential, commercial, and industrial clients across France.

Differentiator

Problem solved

Functional benefit

Products and services

• Repair and Strengthening of Structures Specialized repair and structural reinforcement services for buildings and infrastructure, covering concrete, wood, metal, and masonry structures. Includes techniques such as carbon fiber reinforcement, steel memory form systems, hydraulic jacking, and various structural repair methods. Targeted at property owners, syndicates, public institutions, and industrial clients.
• Structural Lifting (Relevage des structures) Specialized technique for leveling buildings or structures whose foundations have experienced significant subsidence, using hydraulic jacks and metal reinforcements to correct or support foundations. Capable of independent control of multiple support points (up to 7 jacks) for non-uniform settlement correction. Targeted at property owners and managers of settled buildings.
• Emergency Safety Stabilization (Mise en sécurité d'urgence) Rapid response safety services for buildings in urgent situations caused by storms, floods, earthquakes, fires, or structural instability. Includes temporary support systems (étaiement), facade stabilization (butonnage, étrésillonnement de baies), matage and agrafage of fissures, metallic fretting, and provisional metal tie rods. Targeted at property owners, syndicates, and public institutions needing urgent intervention.

Named customers8 records

Segments4 records

Ideal customer profiles4 records

Technology focussed No

API detail

Has API

No

API docs

API detail

Core technology

AI maturity

App detail

Feature8 records

Partnerships

Ten partnerships are on record, tiered core, major, key and supporting.

• TEMSOLcoreOthersRenforep originated as a business activity within TEMSOL, the foundation engineering specialist of Groupe Cassous. TEMSOL provides micropile (micropieux) installation services that complement Renforep's structural work. TEMSOL RSO Mérignac was specifically referenced for micropieu execution on the Saint-Georges-de-Didonne building lift project.
• COREN (Agences de PONS et Périgueux)majorStrategic or Co-development PartnerCOREN is a renovation company that acts as project mandator and main contractor, subcontracting structural repair and reinforcement work to Renforep. COREN agencies (PONS, Périgueux, and Pays Basque) regularly engage Renforep for structural stabilization, lifting, and reinforcement on renovation projects across western and southwestern France.
• Noubau (Fournisseur de profilés galvanisés)keyTechnology or IntegrationNoubau supplies specialized galvanized steel reinforcement profiles used by Renforep for floor and beam strengthening in confined spaces. Noubau products are referenced on multiple projects including Bordeaux cellar floors, hotel restoration, and post-fire repair. Noubau profiles are described as manuportable and easily assembled in restricted-access environments.
• Su-Re / Re-FerkeyTechnology or IntegrationSu-Re is a supplier of Re-Plate steel memory form plates (120mm width) and Re-Fer memory steel bars (Ø16mm) used by Renforep for pre-stressed reinforcement of concrete slabs and beams. These products enable non-invasive structural strengthening with minimal added thickness.
• ACE StructuresupportingTechnology or IntegrationACE Structure is the structural engineering consultancy (BET) that produced the technical study for the parking floor strengthening project in Olivet (department 45), specifying the use of Re-Plate memory steel and carbon fiber reinforcement.
• GRIF IngénieriesupportingTechnology or IntegrationGRIF Ingénierie is the structural engineering firm (BET structure) that conducted the technical study justifying the facade buttressing system for the Paris demolition project, working jointly with Renforep to design the tie-rod and counterforce system.
• IDBA (BET Structure)supportingTechnology or IntegrationIDBA is the structural engineering consultancy (BET structure) that produced the technical study for the IPVF project in Palaiseau, selecting carbon fiber lamellae as the preferred reinforcement method for the alveolar concrete slab.
• Abak IngénieriesupportingTechnology or IntegrationAbak Ingénierie is the execution engineering consultancy that provided structural studies for multiple Renforep projects, including the glulam timber gymnasium repair in Marcheprime (33) and a stone staircase reinforcement in Bordeaux.
• BEETWEENsupportingImplementation/ SI/ Consulting PartnerBEETWEEN is the recruitment software and candidate management platform used by Renforep / Groupe Cassous for hiring and managing job applications. Listed in the site's legal notices.
• QUARCO (Bureau d'étude d'exécution)supportingTechnology or IntegrationQUARCO is the execution engineering firm (bureau d'étude d'exécution) that partnered with Renforep on the 39 rue Fondaudège, Bordeaux structural strengthening project.

Scale indicators2 records

Recent moves7 records

Expansion highlights5 records

Broad incumbents

• SPIE Batignolles: Major French general contractor with multi-regional operations and structural-repair capabilities across building and civil works. A broader incumbent against which Renforep competes on specialty scope and agility.
• Bouygues Construction: Large French construction group operating in building, civil works and renovation. Executes structural repair at scale, frequently as general contractor on the same public tenders Renforep targets through its partner network.
• Soletanche Bachy: Vinci-owned foundation and ground engineering specialist with overlapping activity in structural repair, micropiles and underpinning. Comparable in technical scope but much broader and more capitalized than Renforep.
• Mapei France: French subsidiary of Mapei, supplying structural repair mortars, resins, FRP systems and concrete restoration products. Overlaps with Renforep's service scope through the products applied in reinforced-concrete and masonry repair.
• BASF Master Builders Solutions France: Global provider of concrete repair and structural strengthening systems used in the same renovation and infrastructure rehabilitation workflows that Renforep services.
• Sika France: French arm of global construction chemicals group with a major structural strengthening product line (Sika CarboDur CFRP systems, resins, grouts). Comparable as a provider of the underlying materials and techniques Renforep applies.

Direct peers

• Freyssinet: Vinci subsidiary and world leader in structural repair, reinforcement, and post-tensioning. Offers the same core services as Renforep (carbon fiber reinforcement, structural strengthening, lifting) at much greater scale and geographic reach, making it the closest comparable specialist.
• Etandex: French specialty contractor focused on structural repair, reinforcement, and post-tensioning for buildings and infrastructure. Operates as a direct niche competitor to Renforep in the French market with overlapping service lines (carbon fiber, external reinforcement, repair).
• TEMSOL: Sister company of Renforep within Groupe Cassous and its foundation/micropile specialist. Highly comparable service profile; Renforep originated from TEMSOL and continues to jointly execute foundation-and-reinforcement projects.
• Botte Fondations: French specialty contractor in foundation works, underpinning, and structural reinforcement. Comparable as a small-to-mid specialist serving the same building-rehabilitation and emergency-stabilization use cases as Renforep, often via project-based contracts.

Market position

Strengths4 records

Weaknesses4 records

Competitive moat5 records

Key risks6 records

Key highlights6 records

Customer concentration

• LinkedInlinkedin.com/company/renforep

Revenue estimate

Valuation estimate

Number of profiles

Profiles1 record

Funding overview

Funding rounds

Investors

Funding detail is available on the Subscription and Enterprise plan.Contact sales →

M&A

Investments

M&A and investment is available on the Subscription and Enterprise plan.Contact sales →

Frequently asked questions about Renforep