DIHAG-Dämm- und Isolierbaustoffhandelsgesellschaft m.b.H.

What DIHAG-Dämm- und Isolierbaustoffhandelsgesellschaft m.b.H. does

DIHAG-Dämm- und Isolierbaustoffhandelsgesellschaft m.b.H., operating under the brand Dihag, is a family-owned Austrian building materials wholesaler founded in May 1985 and headquartered in Neumarkt am Wallersee. The company specializes in insulation materials and specialty construction products, distributing a comprehensive range spanning five vertical categories: Holz- & Trockenbau (wood and dry construction), Dach- & Fassadenbau (roof and facade), Massivbau (solid construction), Innen- und Außenputz (interior and exterior plaster), and Estrich- und Fußbodenbau (screed and floor construction). Its product portfolio includes soft wood fiber insulation (Holzweichfaser), Riduro timber boards, CETRIS cement-bonded particle boards (for which DIHAG is the general importer in Austria), fire protection panels (AESTUVER), fiber cement facade panels (James Hardie), vacuum insulation, glass wool (Isover), Rotkalk plaster, insulation cork, and acoustic floor mats (Getzner Sylomer). The company also offers proprietary accessories such as Dihag Woodcover, a temporary weather protection coating for wood fiber insulation boards approved by STEICO and BAUMIT.

The business operates a B2B wholesale distribution model with a sales-led go-to-market, serving construction companies, carpentry firms, dry construction professionals, screed layers, roofers, and the broader building materials trade. It runs three branches across Austria (Neumarkt am Wallersee, Markt Allhau, Herzogenburg) with a combined warehouse capacity of 33,000 m² and a fleet of 14 owned trucks, enabling direct delivery across the Salzburg-to-Burgenland corridor. Pricing is quote-based on published PDF price lists, with goods sold ex-warehouse in complete packaging units and payment terms of net 8 days.

DIHAG is fully owned by the Baumgartner family following the 2017 buyout of all other shareholders. In 2025, the founder Erwin Baumgartner sen. was joined by his two sons, Erwin jun. and Thomas, in a generational transition. The company operates trading activity through two wholly-owned regional entities, Dihag BauhandelsgesmbH Herzogenburg and Dihag BauhandelsgesmbH Markt Allhau, and maintains sourcing relationships with more than 30 major European building materials producers including Saint-Gobain, Knauf, Rockwool, STEICO, Baumit, Röfix, VELUX, and FAKRO.

Name

DIHAG-Dämm- und Isolierbaustoffhandelsgesellschaft m.b.H.

Legal name

DIHAG-Dämm- und Isolierbaustoffhandelsgesellschaft m.b.H.

Website

https://dihag.at

Company type

Private

Founded year

1985

Operating status

Operating

Headcount range

1–10 employees

Short description

DIHAG is a family-owned Austrian wholesale distributor of insulation materials and specialty construction products, operating three branches across the Salzburg-to-Burgenland corridor with 33,000 m² of warehouse capacity and a fleet of 14 trucks, serving construction companies, carpenters, dry construction, screed, and roofing trades.

Ownership category

akta.pro rank

Product category

Building Materials Wholesale (Insulation & Specialty Construction Products)

NAICS

Lumber and Other Construction Materials Merchant Wholesalers (4233), Roofing, Siding, and Insulation Material Merchant Wholesalers (42333)

SIC

Wholesale-Lumber & Other Construction Materials (5030)

akta.pro industry

PRIMARYCRAOAFAD

Building Materials & Lumber Distribution

Consumer Products & Retail/Wholesale, Distribution & Category Management/Home, Furniture & Home Improvement Distribution

Keywords

• Insulation materials wholesale
• Building materials distribution
• Specialty construction products
• Thermal insulation supply
• Construction trade supplies

Headquarters

HQ city

Neumarkt am Wallersee

HQ country

Austria

HQ region

Europe

Offices3 records

Markets served

GTM type

B2B

Offering type

Hardware or Manufacturing

Cost components

Supply Chain, Infrastructure, Personnel, Operations

Revenue model

1. Insulation Materials and Accessories Wholesale: Wholesale distribution of insulation materials, accessories, and specialty construction products for building envelopes, intermediate ceilings, and interior walls. Products span from basement to roof applications. Pricing is quote-based with published price lists; prices are valid from warehouse and exclude transport, insurance, and setup costs.
2. Logistics and Delivery Services: Delivery services using own truck fleet for customers in the Salzburg to Burgenland region. Delivery on account and risk of the customer; unloading by customer unless otherwise agreed. Heavy truck access up to 20 tonnes required.

Pricing tiers

Go-to-market motion2 records

Distribution channels3 records

Marketing channels5 records

Core offering

Wholesale distribution of insulation materials, accessories, and specialty construction products for the building envelope, intermediate ceilings, and interior walls — covering applications from basement to roof. The portfolio spans five product categories (wood & dry construction, roof & facade, solid construction, interior & exterior plaster, screed & floor construction) sourced from approximately 30 brand partners and sold primarily to construction companies, carpentry firms, dry construction professionals, screed layers, roofers, and the building materials trade. Delivery is provided through an in-house fleet of 14 trucks backed by 33,000 m² of warehouse capacity across three Austrian branches.

Product overview

DIHAG is a building materials wholesaler specializing in insulation materials and special construction products, operating as a unified product portfolio with five main product categories: Holz- & Trockenbau (wood/dry construction with products like Holzweichfaser, Riduro, CETRIS, and Woodcover), Dach- & Fassadenbau (roof/facade with AESTUVER fire protection boards, James Hardie facade panels, and vacuum insulation), Massivbau (solid construction featuring Isover Clima 34 glass wool), Innen- & Außenputz (plaster products including Rotkalk, Dämmkork, and Barraseal Turbo sealing), and Estrich- & Fußbodenbau (floor systems with GETZNER acoustic mats, LITHOTHERM, and NATUREFLOOR). The company serves as general importer for CETRIS cement-bonded particle boards and offers supplementary products like insulation materials, accessories, and construction chemicals through their network of suppliers.

Differentiator

Problem solved

Functional benefit

Products and services

• Holzweichfaser (Wood Fiber Insulation) Soft wood fiber insulation boards for interior insulation, facade, roof, and floor systems, offered to construction trades under the Holz- & Trockenbau (wood & dry construction) product category.
• Riduro Holzbauplatten Special wood construction boards for timber-frame construction, marketed to carpenters and dry construction professionals as a structural and insulation board for modern wood construction.
• CETRIS Zementgebundene Spanplatten (Cement-bonded Particle Boards) Cement-bonded particle boards sold under general-import rights for CETRIS, applicable to fire protection and static (load-bearing) applications, individually cuttable and pre-drillable, supplied to construction professionals and the building materials trade.
• DIHAG Woodcover (Temporary Weather Protection) Proprietary temporary weather protection coating for wood fiber insulation boards offering UV protection for up to six months, approved by STEICO and BAUMIT, and sold under the Holz- & Trockenbau product category.
• AESTUVER Brandschutzplatten (Fire Protection Boards) Cement-bonded fire protection boards and accessories sold to roofers, facade specialists, and builders for interior and exterior structural fire protection applications.
• James Hardie Fassadenplatten (Fiber Cement Facade Panels) Fiber cement facade panels with various structures, colors, and modern robust cladding variants, sold to facade specialists and construction companies for wall cladding and ventilated facade applications.
• Vakuumdämmungen (Vacuum Insulation Panels) High-performance vacuum insulation panels with extremely low thermal conductivity for high-tech insulation applications in roof, facade, and compact construction projects.
• Isover Clima 34 (Glass Wool Wall Insulation Board) Uncoated Saint-Gobain Isover glass wool insulation board for sound and thermal insulation of walls, bondable to masonry or concrete substrates, supplied for solid (Massivbau) construction projects.
• Rotkalk (Red Lime Plaster) Red lime plaster usable as both topcoat and base coat, acting as a moisture regulator to deliver excellent indoor climate, sold to plastering professionals and construction trades for interior and exterior applications.
• Dämmkork (Insulation Cork) 100% natural cork insulation made from oak bark without additives, used as thermal insulation in wood construction and for load-bearing roof insulation, marketed as an ecological insulation alternative.
• Barraseal Turbo (Reactive Sealing Slurry) Two-component flexible reactive sealing for basement walls, foundations, and concrete components against soil moisture, seepage water, and pressurized water, sold to construction professionals for waterproofing applications.
• GETZNER Acoustic Floor Mat (Sylomer) Sound insulation mats using Getzner Sylomer technology installed under screeds, achieving impact sound reduction of up to 35 dB, supplied to screed layers and floor construction professionals.
• LITHOTHERM Natural Stone Floor Panels Natural stone panels with tongue-and-groove system for floating installation that serve as heat storage to improve underfloor heating efficiency and reduce impact sound, supplied to floor construction professionals.
• NATUREFLOOR (Dry Screed Wood-Chip Panels) Dry screed panels made from wood chips coated with clay, offering high dimensional stability and excellent sound insulation, suitable as a quick-install alternative for both dry and wet screed construction.
• Logistics and Delivery Service (14-Truck Own Fleet) Owned-fleet logistics service delivering insulation materials and specialty construction products from DIHAG's three Austrian branches to construction sites between Salzburg and Burgenland, requiring accessible roads for heavy trucks up to 20 tonnes.

Quantifiable outcome

• Trittschallminderungen von bis zu 35 dB (Impact sound reduction of up to 35 dB) with Sylomer products from Getzner
• +2 more outcomes

Named customers6 records

Segments6 records

Ideal customer profiles2 records

Technology focussed No

API detail

Has API

No

API docs

API detail

Core technology

AI maturity

App detail

Feature3 records

Partnerships

32 partnerships are on record, tiered core.

• ALUJET GmbHcoreTechnology or IntegrationSince its founding in 1978, ALUJET GmbH develops new possibilities in insulation accessories, sustainably improving the function and protection of insulation materials. DIHAG sources insulation accessory products from this partner.
• Ampack Handels GmbHcoreTechnology or IntegrationAmpack is one of the leading providers in Central Europe for solutions for sealing building envelopes against vapor, air, wind, water, noise, cold, and emissions. Provides sealing solutions to DIHAG customers.
• Ardex Baustoffe GmbHcoreTechnology or IntegrationARDEX is an independent, globally active family business developing, producing, and distributing high-quality system products for the construction and floor and tile industries.
• Austrotherm GmbHcoreTechnology or IntegrationAustrotherm GmbH is the specialist for climate-protecting, future-oriented, and energy-saving thermal insulation from basement to roof.
• Avenarius-Agro GmbHcoreTechnology or IntegrationAvenarius-Agro guarantees safety in building waterproofing, heavy corrosion protection, concrete renovation, and floor and wall coatings with high-quality products.
• Bauder Gesellschaft m.b.H.coreTechnology or IntegrationBauder in Ansfelden is a subsidiary of Paul Bauder GmbH & Co. KG in Stuttgart. Bauder is a leading manufacturer of roof systems in Europe and has been owner-managed for over 160 years.
• Baumit GmbHcoreTechnology or IntegrationDecades of experience combined with research and development are the best prerequisites for high-quality building materials. Baumit offers strong partnership, products for every need, personal contact, and future success.
• best wood Schneider GmbHcoreTechnology or IntegrationEcological and innovative building materials for modern timber construction: best wood SCHNEIDER develops and manufactures all products necessary for construction and insulation in a closed raw material cycle.
• Brucha Gesellschaft m.b.H.coreTechnology or IntegrationFor 75 years, Brucha has been producing high-quality insulation materials for industrial and commercial buildings. Positioned as premium manufacturer and complete provider for BRUCHA panels and EPS insulation panels as well as special installation construction.
• CETRIScoreTechnology or IntegrationFounded in 1991 in the Czech Republic, CETRIS is the largest manufacturer of cement-bonded particle boards in Europe with an annual capacity of approximately 45,000 m³. DIHAG is the general importer for CETRIS products, which are used across Europe. Products are environmentally friendly, certified, asbestos- and formaldehyde-free, and fire- and moisture-resistant.
• LASSELSBERGER GmbH / CemixcoreTechnology or IntegrationBehind the Cemix dry building materials brand is LASSELSBERGER GmbH based in Pöchlarn, Lower Austria. Offers first-class and innovative materials from own production for all application areas.
• DAPEK Dach- und Abdichtungstechnik GmbHcoreTechnology or IntegrationWith over 20 years of experience, DAPEK specializes in high-quality and practical EPDM sealing solutions for flat roofs, balconies, terraces, green roofs, pitched roofs, buildings, and facades.
• FAKRO Dachflächenfenster GmbHcoreTechnology or IntegrationFAKRO offers a broad spectrum of products enabling comfortable attic use, including roof windows, flat roof windows, attic ladders, interior and exterior sun protection.
• Foamglas PittsburghcoreTechnology or IntegrationFOAMGLAS® is a high-quality thermal insulation for building construction, made primarily from recycled glass and natural raw materials that are nearly unlimited in nature. Provides important ecological contribution through glass recycling.
• Getzner Werkstoffe GmbHcoreTechnology or IntegrationGetzner is the leading specialist for vibration isolation in construction, railways, and industry. Innovative solutions reduce vibrations, maintenance effort, and extend service life.
• GLAPOR Werk Mitterteich GmbHcoreTechnology or IntegrationGLAPOR produces resource-conserving foam glass insulation from 100% recycled glass using an innovative production process. Products are sustainable, deconstructable, and highly engineered.
• Knauf Gesellschaft m.b.H.coreTechnology or IntegrationKnauf produces building systems that simplify planning and construction, offer successful complete solutions, and save time during implementation. Unconditional quality assurance creates trust.
• Knauf Insulation GmbHcoreTechnology or IntegrationThe broad range of insulation products made of glass wool, stone wool, and wood wool makes Knauf Insulation unique and versatile: appropriate and sustainably efficient insulation for new construction and renovation.
• LITHOTHERM GmbHcoreTechnology or IntegrationLITHOTHERM Deutschland GmbH is an owner-managed company and manufacturer of ecological and sustainable system constructions for the floor area. Offers natural stone plates with tongue and groove for floating installation that serve as heat storage and improve floor heating efficiency.
• Mapei Austria GmbHcoreTechnology or IntegrationMAPEI Austria ensures comprehensive supply of quality-tested building materials with production facilities in Nußdorf ob der Traisen and Langenwang. With 11,000 employees worldwide, 84 production facilities, and 32 research centers, MAPEI is one of the top market leaders in construction chemicals.
• Rockwool HandelsGmbHcoreTechnology or IntegrationAs the global market leader for stone wool solutions, ROCKWOOL offers innovative and sustainable insulation products and systems for thermal, fire, and sound protection.
• Röfix AGcoreTechnology or IntegrationRÖFIX offers innovative system products that meet the highest technical, ecological, and economic requirements.
• Saint-Gobain Isover Austria GmbHcoreTechnology or IntegrationISOVER is part of Saint-Gobain Austria GmbH and a leading manufacturer of insulation materials made of glass and stone wool. Products provide effective thermal, sound, and fire protection solutions in buildings and industrial plants.
• Saint-Gobain Rigips Austria GesmbHcoreTechnology or IntegrationRIGIPS is part of Saint-Gobain Austria GmbH. As a manufacturer of gypsum fiber panels and system solutions for dry construction, offers innovative products and services for fast and easy wall and ceiling constructions in sustainable lightweight construction.
• Saint-Gobain Weber Terranova GmbHcoreTechnology or IntegrationWEBER Terranova is part of Saint-Gobain Austria GmbH. Weber is a leading manufacturer of easy-to-process building materials for facade/wall, thermal insulation/WDVS, floor systems, tile laying systems, and building protection systems.
• Steico SEcoreTechnology or IntegrationSTEICO - the market leader for wood fiber insulation - produces ecological building products from renewable raw materials. In the STEICO building system, insulation materials and constructive building elements complement each other.
• Steinbacher Vertriebs GmbHcoreTechnology or IntegrationSteinbacher Dämmstoffe offers high-quality climate protection products with the best customer service. The only domestic complete provider with solutions from basement to roof including building services.
• STO Ges.m.b.H.coreTechnology or IntegrationSTO Ges.m.b.H. is a technology leader in thermal insulation. Offers a complete program of facade paints, interior paints, facade renders, ventilated facade systems, acoustic and floor coating systems, and products for concrete renovation.
• Swisspor Österreich GmbH & Co KGcoreTechnology or IntegrationAn Austrian production company with Swiss group background. With more than 50 years of experience, Swisspor has developed into one of the top providers in the industry with an Austria-wide reputation for high-quality products and systems in thermal insulation and building sealing.
• Unilin InsulationcoreTechnology or IntegrationUnilin Insulation has been a concept in the construction industry for many years, not only as the largest European provider of PIR insulation boards but also as the absolute market leader in Europe for self-supporting roof elements.
• VELUX Österreich GmbHcoreTechnology or IntegrationVELUX Österreich GmbH based in Wolkersdorf is a company of the international VELUX Group. The world's largest manufacturer of roof windows employs approximately 12,500 people in around 40 countries. In Austria, the VELUX Group employs over 70 people in production and sales.
• Xella Porenbeton Österreich GmbHcoreTechnology or IntegrationThe Xella Group offers high-quality mineral building and insulation materials for residential and non-residential construction in Austria under the leading brands Ytong, Silka, and Multipor.

Scale indicators5 records

Recent moves20 records

Expansion highlights3 records

Broad incumbents

• BayWa Baustoffe: German building-materials and renewable-energy distributor with Austrian operations. Comparable in B2B wholesale of insulation, drywall, and construction chemicals to professional trades.
• Eurobaustoff: European purchasing and marketing cooperative for independent building-materials wholesalers. Comparable as a wholesale channel serving the same trades and offering a similarly broad product portfolio across insulation and construction materials.
• Stark Group: Northern European specialist building-materials distributor (STARK, Beijer, Keramundo) with growing Austrian footprint. Comparable in B2B distribution model, insulation and dry-construction focus, and multi-brand supplier partnerships.
• Saint-Gobain Distribution: Pan-European building-materials distribution arm of Saint-Gobain, with significant operations in Austria through Isover, Rigips, and Weber Terranova brands. Comparable as a multi-country specialist wholesaler in insulation and building-envelope products.
• Hagebau: Central European building-materials trading and DIY cooperative with strong presence in Austria. Comparable in product breadth (lumber, insulation, building materials) and in serving both professional trades and retail channels.

Direct peers

• Traussnig: Austrian specialist insulation and dry-construction distributor serving trades and construction companies. Comparable as a regional Austrian specialty wholesaler with overlapping supplier relationships (e.g., Saint-Gobain, Rockwool-equivalent brands).
• Quester Baustoffhandel: Austrian building materials wholesaler with a multi-branch network distributing insulation, drywall, and construction chemicals to professional trades. Directly comparable in product mix, B2B customer base, and Austrian geographic footprint.

Others

• Pfeifer Group: Austrian-based timber and wood-based materials manufacturer and supplier. Comparable as a Central European specialty building-materials partner overlapping in wood-fiber insulation and timber construction product lines.

Regional players

• Materna Bauhandel: Austrian building-materials retailer/wholesaler focused on construction and renovation supplies. Comparable in serving Austrian trades with insulation and construction products, though with a smaller warehouse footprint.
• Brinkmann (Brenntag): Northwest German family-owned specialist insulation and construction-chemicals wholesaler. Comparable in family ownership, regional logistics-driven model, and exclusive specialty product positioning.

Market position

Strengths5 records

Weaknesses4 records

Competitive moat4 records

Key risks6 records

Key highlights6 records

Customer concentration

• LinkedInlinkedin.com/company/dihag-d%C3%A4mm-und-isolierbaustoffhandelsgesellschaft-m-b-h

Revenue estimate

Valuation estimate

Number of profiles

Profiles4 records

Subsidiaries2 records

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 DIHAG-Dämm- und Isolierbaustoffhandelsgesellschaft m.b.H.