Dallmer

What Dallmer does

Dallmer GmbH + Co. KG is a German family-owned manufacturer of professional drainage technology founded in 1913 and headquartered in Arnsberg, Germany. The company designs and produces a comprehensive portfolio of drainage solutions for residential and commercial buildings, organized around three modular system families: the DallFlex shower channel platform (with variants CeraWall, CeraFloor, Zentrix, CeraNiveau, CeraFrame, and CeraFrame Liquid Neo), the DallDrain floor drain system (with CeraDrain and modular Series 10/15 components), and specialty drainage for cellar, roof, and balcony applications including the SuperDrain siphonic roof drainage line. Supporting the core product portfolio are anti-flooding valves (Stausafe, DallSafe), air-admittance valves (DallVent), traps, and an emerging Connect active drainage line that adds connected monitoring to selected shower channel variants. All products are designed to comply with DIN EN 1253-6 and -7 standards and integrate waterproofing, fire insulation, and sound insulation requirements, carrying a 10-year warranty.

Dallmer serves a B2B customer base primarily composed of architects and planners (who specify drainage systems in new construction and renovation projects), plumbers and installers (who execute the installation), and end homeowners (in the design and renovation segment). The company operates a horizontal segmentation approach, addressing use cases including barrier-free bathroom design, bathroom refurbishment, cellar waterproofing, roof and balcony drainage, anti-flooding protection, and plumbing ventilation. Go-to-market is built around a professional B2B channel strategy: the company engages specifiers through trade shows (architect@work, GET NORD), technical seminars, BIM files and DXF drawings, online configurators, and email newsletters, while distribution to end projects is handled through an international partner and reseller network spanning Germany, the United Kingdom, France, Spain, Poland, Switzerland, and Belgium, supplemented by direct regional sales contacts. Pricing is not publicly disclosed and is handled on a quote basis.

The business operates as a privately held GmbH + Co. KG, a structure common to German family-owned Mittelstand companies, with no public listing, external investors, or disclosed parent company. With 101-250 employees and over a century of operating history, Dallmer is a mature specialty manufacturer with a stable multi-country European footprint, sustained product innovation around its modular platform architecture, and an emerging extension into connected/smart drainage variants.

Name

Dallmer

Legal name

Dallmer GmbH + Co. KG

Website

https://dallmer.de

Company type

Private

Founded year

1913

Operating status

Operating

Headcount range

101–250 employees

Short description

Dallmer GmbH + Co. KG is a German family-owned manufacturer founded in 1913 that designs modular drainage systems (shower channels, floor drains, roof drains, traps) for architects, planners, and plumbers across European residential and commercial construction markets.

Ownership category

akta.pro rank

Product category

Architectural Drainage Systems

NAICS

Plumbing, Heating, and Air-Conditioning Contractors (23822), Water and Sewer Line and Related Structures Construction (237110), Plumbing, Heating, and Air-Conditioning Contractors (238220)

SIC

Pumps & Pumping Equipment (3561), Water, Sewer, Pipeline, Comm & Power Line Construction (1623)

akta.pro primary industry

Bathroom Flooring Replacement (LVP, Tile, Heated Floors) (HSAPABAK)

akta.pro secondary industries

Drain Cleaning (Commercial/Industrial) (HSAOABAB), Water Filtration, Treatment & Softening Plumbing Products (IMADALAK), French Drains & Yard Drainage Systems (Install/Clean/Repair) (HSAIAKAH)

Keywords

• Architectural drainage systems
• Shower channel systems
• Floor drain systems
• Linear floor drains
• Bathroom drainage products

Headquarters

HQ city

Arnsberg

HQ country

Germany

HQ region

Europe

Offices1 record

Markets served

GTM type

B2B

Offering type

Hardware or Manufacturing

Cost components

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

Distribution channels2 records

Marketing channels5 records

Core offering

Dallmer manufactures and sells professional drainage technology systems for residential and commercial buildings, including shower channel systems, floor drain systems, traps, air-admittance valves, anti-flooding valves, and roof/balcony drains. The company operates a modular platform approach where a unified drain body (such as DallFlex or DallDrain) is compatible with multiple interchangeable product variants, enabling customization for different installation scenarios. Products are DIN-compliant (DIN EN 1253-6 and -7) and address waterproofing, fire insulation, sound insulation, and barrier-free bathroom design requirements.

Product overview

Dallmer is a manufacturer of professional drainage technology systems for residential and commercial buildings. The company offers a unified platform approach where a single drain body (such as DallFlex or DallDrain) serves as a foundation compatible with multiple interchangeable product variants, allowing customization for different applications. The product portfolio centers on three main system families: the DallFlex shower channel system (with variants CeraWall, CeraFloor, Zentrix, CeraNiveau, CeraFrame, CeraFrame Liquid Neo, and Connect active drainage versions), the DallDrain floor drain system (with CeraDrain and modular Series 10/15 components), and comprehensive specialty drainage for cellar/basement, roof/balcony, and trapping applications. Supporting services include BIM planning tools, online configurators, installation videos, and technical documentation.

Differentiator

Problem solved

Functional benefit

Brands

• DallFlex: Shower channel system family
• CeraLine
• TistoLine
• DallDrain
• ORIO
• DallVent
• Stausafe
• DallSafe
• PRONTO
• SuperDrain
• CeraDrain

Products and services

• DallFlex System Family

Quantifiable outcome

• DallFlex 2.0 supports tile coverings from 6mm

Segments3 records

Ideal customer profiles2 records

Technology focussed No

API detail

Has API

No

API docs

API detail

Core technology

AI maturity

App detail

Feature5 records

Recent moves6 records

Expansion highlights5 records

Broad incumbents

• Geberit: Geberit is a large European sanitary technology group offering installation systems, cisterns, and bathroom drainage — overlapping with Dallmer's trap, shower channel, and air-admittance valve categories at much larger scale.
• Viega: Viega manufactures plumbing, drainage, and pipe-joining systems across residential and commercial buildings, including shower channels and floor drains that overlap with Dallmer's core range.
• Hansgrohe: Hansgrohe is a major German shower and bathroom fittings brand; while primarily focused on taps and showers, it competes for the same architect-driven specification wallet and bathroom renovation budgets as Dallmer.

Direct peers

• Kessel AG: Kessel is a German specialist in building drainage, backwater protection, and roof drains — directly comparable to Dallmer's Stausafe anti-flooding valves and SuperDrain siphonic roof drainage lines.
• HL Hutterer & Lechner: HL is an Austrian manufacturer of floor drains, shower channels, and building drainage products with strong DACH-region presence, making it a direct niche competitor to Dallmer.
• Blücher (Watts Water Technologies): Blücher produces stainless steel floor drains, channels, and roof drainage for commercial and residential applications, competing directly with Dallmer's modular floor and shower drain systems.
• ACO Drainage Systems: ACO is a leading European manufacturer of drainage systems for buildings, civil infrastructure, and bathrooms, directly competing with Dallmer's shower channel, floor drain, and roof drainage portfolios.
• TECE: TECE produces installation and drainage systems for bathrooms, including shower channels and drain bodies, and competes head-to-head with Dallmer's DallFlex and DallDrain platforms in the German-speaking market.

Emerging players

• Wedi GmbH: Wedi manufactures modular bathroom systems including shower elements with integrated drainage, overlapping with Dallmer's level-access shower solutions from a system-selling perspective.
• Joco Bespoke (and similar design drainage brands): Smaller design-led shower channel and linear drain brands targeting high-end residential and architectural projects, competing with Dallmer's CeraLine, TistoLine, and CeraWall premium offerings.

Market position

Weaknesses4 records

Competitive moat5 records

Key risks5 records

Key highlights6 records

Customer concentration

• Facebookfacebook.com/dallmer.official
• LinkedInlinkedin.com/company/dallmersanitu00e4r

Revenue estimate

Valuation estimate

Number of profiles

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 Dallmer