What Fleck does

FLECK GmbH is a German Mittelstand manufacturer of roof accessories (Dachzubehör), founded in 1957 by Oskar Fleck and headquartered in Datteln, Germany, with primary production at the FLECKtory facility in Oer-Erkenschwick. The company designs and produces injection-molded, extruded, and formed components in PVC, PP, PE, and metal across three core application areas: pitched roof accessories (Steildach) such as the Sani Extra DN 100, Wrasenlüfter vapor vents, and Europa-Roll-Traufe eaves products; flat roof accessories (Flachdach) such as the 4-in-1 Flachdachlüfter CLASSIC, Flachdach-Winkelablauf (Speier), ROOFGUARD automated leaf sieve, and configurable rectangular emergency overflows (BIG and GIGANT); and solar/PV integration accessories including the Solar-Trägerpfanne (available in 160+ variants), Solar-Durchgangspfanne, and Solarflex-Universaldurchgang. The portfolio also spans sustainable lead substitutes (ECO FORM EASY and BASIC), batt extensions (Dachlattenverlängerung), and a digital service layer including online configurators, snow load and drainage calculators, the FLECK connect platform, and specification texts for tenders.

The company operates an exclusive B2B go-to-market through a network of specialist building material and roofing trade dealers (Fachhandel) across Germany and export markets including Austria (with a dedicated sales representative), Netherlands, Czech Republic, Poland, and France. It does not sell direct to consumers or end roofers; instead it supports trade partners via regional sales managers (Gebietsverkaufsleiter), inside sales (Vertriebsinnendienst), export management, the FLECK Akademie training program, and an online dealer locator. Revenue is generated from hardware sales of proprietary, custom-configurable (often built-to-order, color-matched, pre-assembled) accessories at unit pricing governed by annual price lists; freight is free above €675 net within mainland Germany, with parcel fees below that threshold. Payment terms are 30 days net with 2% discount for payment within 8 days and 3% for SEPA direct debit. The customer base is highly fragmented SMB roofers and contractors served via the dealer channel, with multi-generational relationships and recognized industry credibility including the 2026 VBÖ "Bester der Branche" award in Austria.

FLECK is privately held by the Fleck family (Margot Fleck as shareholder), with Christoph Nielacny as Managing Director. The firm employs 51-100 staff and operates an in-house innovation culture formalized through a Betriebliches Vorschlagswesen (BVW), an Entwicklungsausschuss (Development Committee), and the 2023-founded Product Elimination Committee (PEA) that reviews the 2,000+ SKU portfolio on cost, competition, and customer criteria. EPDs (Environmental Product Declarations) have been obtained for the complete ventilator range, and the company maintains building authority approvals (e.g., Z-9.1-235 ABC) on key structural products.

Name

Fleck

Legal name

Fleck GmbH

Website

https://fleck-dach.de

Company type

Private

Founded year

1957

Operating status

Operating

Headcount range

51–100 employees

Short description

FLECK GmbH is a German Mittelstand manufacturer (founded 1957, 51-100 employees, Datteln) producing custom-configured plastic and metal roof accessories for pitched roofs, flat roofs, and solar/PV integration, sold exclusively through specialist building material trade dealers across Germany and five export markets.

Ownership category

akta.pro rank

Product category

Roofing Accessories

SIC

Asphalt Paving & Roofing Materials (2950)

akta.pro primary industry

Flashing, Edge Metal & Roof Accessories (IMADAFAJ)

Keywords

• Roof accessories
• Plastic injection molding
• Flat roof drainage
• Solar mounting systems
• Building materials

Headquarters

HQ city

Datteln

HQ country

Germany

HQ region

Europe

Offices2 records

Markets served

GTM type

B2B

Offering type

Hardware or Manufacturing

Cost components

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

Revenue model

1. Roof accessory product sales: FLECK generates revenue primarily through the manufacture and sale of proprietary roof accessories. Products are sold individually and in custom configurations to trade partners (building material distributors, specialist roofing dealers). The company offers made-to-order and small-quantity manufacturing with color-matching capabilities, suggesting a build-to-order model with premium customization pricing.

Pricing tiers

Go-to-market motion2 records

Distribution channels1 record

Marketing channels6 records

Core offering

Fleck GmbH manufactures and sells plastic and metal roof accessories for pitched roofs, flat roofs, and solar integration, including ventilation elements, drainage components, emergency overflows, solar passage pans, and batten extensions. The products are produced in-house via injection molding, extrusion, and forming at the Oer-Erkenschwick site and are sold exclusively through the building-materials trade (Fachhandel) to roofers and specialist retailers in Germany, Austria, Switzerland, the Benelux, and Central/Eastern Europe.

Product overview

FLECK is a manufacturer of roof accessories (Dachzubehör) for pitched roofs (Steildach), flat roofs (Flachdach), and solar/PV integration. The product portfolio is organized into five main categories: Steildach-Zubehör (pitch roof accessories), Flachdach-Zubehör (flat roof accessories), Solar-Zubehör (solar/PV accessories), Universal-Zubehör (universal accessories), and Sonstiges Zubehör (miscellaneous accessories). Top-selling products include the Sani Extra DN 100, Wrasenlüfter mit Standardkopf DN 300–DN 500, and Europa-Roll-Traufe for pitched roofs; the 4 in 1 Flachdachlüfter CLASSIC, Flachdach-Winkelablauf (Speier), and ROOFGUARD Laubsieb for flat roofs; and the Solar-Trägerpfanne mit einstellbarer VA-Halterung, Solar-Durchgangspfanne, and Solarflex-Universaldurchgang for solar integration. FLECK also offers ECO FORM (sustainable lead substitute) in EASY and BASIC variants, and batten extensions (Dachlattenverlängerung) in various lengths. The company provides a suite of digital tools including online configurators (Wrasenlüfter, Flachdach-Rechteck-Notüberlauf, Flachdachzubehör, horizontale Dachdurchführung), calculators (Schneelastrechner, Entwässerungs- und Retentionsberechnung), FLECK connect (customer inquiry/registration platform), and dealer/productivity tools. FLECK's offerings are characterized by high individual configurability (individual production even in small quantities), pre-assembly, and a strong sustainability focus including EPDs and lead substitutes.

Differentiator

Problem solved

Functional benefit

Products and services

• Sani Extra DN 100 Flat-roof sanitary vent (DN 100) made of UV-stabilized plastic for venting soil pipes and odorous pipes through flat roofs.
• Wrasenlüfter mit Standardkopf DN 300-DN 500 Pitched-roof extractor ventilator with a standard hood for kitchen/bathroom vapour exhaust, offered in DN 300/400/500 diameters.
• Europa-Roll-Traufe Roll-out eaves closure element for tiled roofs used along the eaves line of pitched roofs.
• 4 in 1 Flachdachlüfter CLASSIC Multi-function flat-roof ventilator combining four functions (ventilation/sanitary/odour/exhaust) in one unit for flat roofs.
• Flachdach-Winkelablauf (Speier) Angled flat-roof emergency drain (Speier) for controlled water discharge through the parapet.
• ROOFGUARD Laubsieb

Quantifiable outcome

• Over 2,000 product designs created over six decades
• +2 more outcomes

Named customers5 records

Segments3 records

Ideal customer profiles2 records

Technology focussed No

API detail

Has API

No

API docs

API detail

Core technology

AI maturity

App detail

Feature7 records

Scale indicators3 records

Recent moves6 records

Expansion highlights4 records

Broad incumbents

• Erlus AG: Erlus is a German traditional manufacturer of clay roof tiles and roof accessories. As a heritage Mittelstand in the same southern DACH specialty-roofing space, it is comparable on positioning and trade-partner distribution even though it is larger and more product-diversified.
• BMI Group (Monier / Braas / Icopal): BMI Group is Europe's largest full-line roofing manufacturer, combining pitched-roof tiles, flat-roof membranes and accessories across the Monier, Braas and Icopal brands. FLECK competes most directly with its accessories portfolio.
• Paul Bauder GmbH & Co. KG: Bauder is a leading German manufacturer of flat-roof and pitched-roof systems, including waterproofing membranes and accessories. Its broad portfolio overlaps with FLECK's flat-roof range but at much greater scale and with full-systems positioning.
• Creaton GmbH (Etex Group): Creaton, part of Etex Group, is a major German manufacturer of clay and concrete roof tiles and complementary pitched-roof accessories. It competes with FLECK in the same DACH distribution channels and offers a broader system sell.
• DOERKEN GmbH & Co. KG: DOERKEN is a German manufacturer of high-performance membranes, underlay and roof-system components sold through the same Fachhandel network. It is adjacent to FLECK in roof-system detailing and shares the same specialist-dealer GTM in DACH.
• Sika AG: Sika is a Swiss-listed specialty chemicals and roofing/waterproofing player with strong presence in flat-roof membranes and accessories across Europe. It overlaps with FLECK on flat-roof accessories and solar/waterproofing combinations, but at global scale.
• Wienerberger AG: Wienerberger is an Austrian-listed building-materials group with a growing roofing and accessories footprint alongside its brick and wall core. As a broad incumbent targeting similar European markets, it represents both competitor and potential acquirer of specialty accessory makers.

Direct peers

• MAGE GmbH & Co. KG: MAGE is a German Mittelstand manufacturer of roof and chimney accessories (flashing, ventilation, penetrations). It is a directly comparable specialty player serving the same Fachhandel and Dachdecker customer base as FLECK.
• Klöber (BMI Group): Klöber is a heritage German roof-accessories brand (vents, flashings, penetrations) now part of BMI Group, the largest European roofing systems supplier. It competes head-to-head with FLECK across pitched-roof accessories and shares the same trade-partner/specifier GTM in DACH.

Emerging players

• Enke-Werk Johannes Enke GmbH & Co. KG: Enke-Werk is a German Mittelstand specialist in liquid-applied waterproofing and roof detailing. It is comparable to FLECK as a German specialty roofing player focused on seam/penetration solutions, but occupies a different material category (liquid vs. plastic/metal accessories).

Market position

Strengths4 records

Weaknesses4 records

Competitive moat5 records

Key risks6 records

Key highlights7 records

Customer concentration

Revenue estimate

Valuation estimate

Number of profiles

Profiles5 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 Fleck