Strotmann Gmbh -spezialbau-

Name

Strotmann Gmbh -spezialbau-

Legal name

Strotmann GmbH

Website

https://strotmann-spezialbau.de

Company type

Private

Founded year

2020

Operating status

Operating

Headcount range

11–50 employees

Ownership category

akta.pro rank

Product category

Historic Building Restoration Services

NAICS

Masonry Contractors (238140), Masonry Contractors (23814), Foundation, Structure, and Building Exterior Contractors (2381)

SIC

General Bldg Contractors - Nonresidential Bldgs (1540)

akta.pro primary industry

Stone Masonry Repair & Restoration (HSAGALAJ)

akta.pro secondary industries

Masonry Repointing & Mortar Joint Repair (HSAGALAH), Concrete Spalling & Surface Restoration (HSAGALAB), Exterior Restoration & Remediation (Recladding, Re-roofing, Leak Repair, Concrete/Facade Repair) (IMAFAMAH)

Keywords

• Historic building restoration
• Facade renovation services
• Monument conservation
• Natural stone masonry
• Heritage preservation

Headquarters

HQ city

Bottrop

HQ country

Germany

HQ region

Europe

Offices1 record

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. Historic Building and Facade Restoration Services: The company generates revenue through project-based, one-time service engagements in historic building and facade restoration, including cleaning, joint repair, stone renewal, crack repair, and static reinforcement. Revenue is derived from contracts with property owners, municipalities, churches, and historical building managers for specific restoration projects. No recurring or subscription revenue model is indicated.

Go-to-market motion1 record

Distribution channels1 record

Marketing channels1 record

Core offering

Strotmann GmbH -spezialbau- is a registered masonry, carpentry, and stonemasonry specialist firm delivering restoration and conservation services for historic building facades and monuments. Its core offerings cover natural stone and stonemasonry work, brick facade restoration, joint replacement and crack repair, substance-conserving facade cleaning (JOS/Wirbelstrahlverfahren vortex blasting, hot steam, cold water), static/structural stabilization, plaster and stucco restoration, concrete repair and reprofiling, and replacement of rusted veneer anchors — all executed to comply with German Denkmalschutz (monument protection) standards.

Product overview

Strotmann GmbH -Spezialbau- is a registered mason, carpenter, and stonemason business specializing in building preservation and monument conservation, with a primary focus on facade renovation and restoration. The company offers a comprehensive portfolio of services including natural stone and stonemasonry work, brick facade restoration, joint replacement and repair, facade cleaning using substance-conserving methods (Wirbelstrahlverfahren/JOS, hot water/steam, cold water), crack repair, static stabilization, plaster and stucco restoration, and concrete repair. The company works with various building materials including brick, natural stone, plaster, and stucco, employing both modern technology and traditional craftsmanship to preserve historical buildings and their facades for future generations.

Differentiator

Problem solved

Functional benefit

Products and services

• Naturstein- und Steinmetzarbeiten (Natural Stone and Stonemasonry Services) Precision restoration and tailored conservation techniques for natural stone elements on historic buildings, including weathering treatment and natural stone facade restoration. Targeted at historic building owners and heritage administrators.
• Fassaden aus Ziegelstein (Brick Facade Restoration) Restoration of brick facades using advanced cleaning techniques that remove impurities without damaging the brick surface, combined with historical material analysis and precise joint replacement. For owners of brick-clad historic buildings.
• Austausch von Fugen (Joint Replacement) Damaged joint replacement for historic facades based on mortar analysis and the use of modern materials corresponding to historical models. For preservation of historic facades across brick, stone, and rubble masonry.
• Fassadenreinigung (Facade Cleaning) Historic facade cleaning using substance-conserving methods (JOS vortex, hot steam, cold water) to remove surface impurities while preserving the original surface; tailored to various historical architectural styles. For owners of historic buildings requiring Denkmalschutz-compliant cleaning.
• Statische Sicherung von Gebäuden (Static Building Stabilization) Structural analysis and reinforcement of historic facades and buildings using modern engineering methods, including targeted use of connecting elements and reinforcement techniques. For heritage building owners facing structural deterioration risks.
• Sanierung von Putz- und Stuckarbeiten (Plaster and Stucco Restoration) Technical restoration of historic stucco facades combining traditional craftsmanship with modern restoration methodology, including reconstruction of damaged ornamental stucco. For monuments with historic decorative plaster and stucco surfaces.
• Betoninstandsetzung und Betonreprofilierung (Concrete Repair and Reprofiling) Concrete renovation on historic facades using precise repair and coating techniques with PCC systems to repair damage while preserving original aesthetics. For monuments and historic buildings with concrete elements requiring repair.
• Wirbelstrahlverfahren / JOS-Verfahren (Vortex Blasting / JOS Method) Substance-conserving particle blasting service using the JOS method at 1.5–3.0 bar to remove black crusts from natural stone, clean brickwork, and remove graffiti without damaging patina or saturating foundations. For historic facade cleaning where conventional high-pressure methods would damage the substrate.
• Heißwasser / Heißdampf (Hot Water / Hot Steam Cleaning) Cleaning technique using heated steam up to 150°C for environmentally friendly removal of stubborn surface deposits without chemicals; water consumption reduced to 4.0–8.0 liters per minute with operator-controlled hand valve. For historic facades requiring chemical-free deep cleaning.
• Kaltwasser (Cold Water Cleaning) Cold water cleaning service using cold water cleaning equipment for strong cleaning effect, quickly loosening dirt and organic deposits on historic facade surfaces. For milder cleaning applications on historic facades.
• Fugeninstandsetzung (Joint Repair Service) Specialized joint repair for exposed masonry using jointing iron, cartridge, or machine spraying methods suited for large joint spaces such as rubble masonry; includes mortar analysis-driven binder selection. For historic facades requiring joint restoration.
• Risssanierung (Crack Repair Service) Crack repair service using injection, needling, and anchoring methods to achieve permanent closure of cracks and restore structural stability, preventing consequential damage. For historic masonry walls and facades with cracks.
• Sanierung Verblendschalenanker (Veneer Anchor Repair) Replacement of rusted or missing wire anchors used for back-anchoring facing shells, with installation of new veneer anchors installed per DIN 1053 masonry construction standards. For two-leaf masonry walls requiring anchor remediation.

Named customers7 records

Segments2 records

Ideal customer profiles1 record

Technology focussed No

API detail

Has API

No

API docs

API detail

Core technology

AI maturity

App detail

Feature3 records

Partnerships

One partnership is on record.

• Strotmann Bauplan (Planungsbüro)minorImplementation/ SI/ Consulting PartnerStrotmann Bauplan is a planning office (Planungsbüro) linked to the company via its website. The planning office likely supports project planning and design work for restoration and construction projects, functioning as an allied planning and consulting partner for the specialized construction business.

Scale indicators2 records

Recent moves1 record

Expansion highlights3 records

Broad incumbents

• Hochtief AG: One of Germany's largest construction companies, with experience in building renovation and facade engineering. Comparable in the building exterior and envelope work, but operating at a dramatically different scale and customer tier.
• STRABAG AG: Major European construction group with expertise in building renovation, structural rehabilitation, and facade restoration. Comparable in that it competes for the same German heritage and commercial restoration projects, but as a broad incumbent rather than a specialist.
• Bilfinger SE: Large German engineering and construction group with a building-envelope and restoration practice. Comparable in that it serves heritage and commercial real estate clients across Germany, though Strotmann is far more specialized in monument-protection-grade masonry.
• Implenia AG: Swiss-headquartered construction and real-estate services group active in complex renovation and heritage work in the DACH region. Comparable in its scope of building-envelope and renovation services, but at vastly larger scale and broader portfolio.
• PORR AG: Austrian construction group with a dedicated building-renovation and heritage practice in Germany. Comparable in targeting German monument-protection and historic-building projects, but with significantly greater geographic and service-line reach.
• Max Bögl Stiftung & Co. KG: Large German construction company with capabilities in building repair, structural reinforcement, and complex renovation projects. Comparable in the building-envelope and structural-stabilization service overlap, though far broader and more industrialized.

Regional players

• Schmees Bau GmbH: German construction and renovation firm with heritage-building and facade work in the Ruhr/NRW region. Comparable in target geography and overlap of masonry/restoration services, though positioned as a broader regional generalist.
• Peter Görlich GmbH & Co. KG: German masonry and construction contractor with capabilities in brick, stone, and facade restoration. Comparable in craft focus and masonry-restore-then-renovate service overlap, with a similar regional, family-business character.

Direct peers

• Stiehl GmbH & Co. KG: German stone and facade restoration specialist focused on natural stone conservation, joint repair, and historic building facades. Highly comparable in operating model, technical toolkit (substance-preserving cleaning, stone renewal, mortar joint repair), and target customer base of heritage property owners.
• Deutsche Werkstätten Hellerau GmbH: Historic German craft and restoration workshop specializing in the conservation of cultural heritage buildings. Closely comparable in operating model: small specialist firm combining traditional craftsmanship with modern restoration techniques for protected monuments.

Market position

Strengths5 records

Weaknesses5 records

Competitive moat3 records

Key risks6 records

Key highlights6 records

Customer concentration

• LinkedInlinkedin.com/company/strotmann-gmbh-spezialbau

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 Strotmann Gmbh -spezialbau-