Rationel Ireland

What Rationel Ireland does

Rationel Ireland, operated under the legal entity DOVISTA IRL Ltd. (Registration No. 119888), is the Irish subsidiary of Danish-owned DOVISTA Group and manufactures, supplies, and installs bespoke timber and aluminium-clad timber windows and external doors. Founded in 1954 in Sdr. Felding, Denmark, the brand has been brought to the Irish market through a showroom-led direct-to-customer model with five physical locations across the island (Dublin, Galway, Cork, Athlone, Newry) and online quote-request channels serving both homeowners and commercial specifiers.

The product portfolio is organised into four core lines: AURA and AURAPLUS (contemporary Scandinavian style) and FORMA and FORMAPLUS (traditional style suited to British and Irish architecture). Each line is offered in either all-timber or aluminium-clad timber construction, with double or triple glazing (U-values down to 0.78 W/m²K), over 200 RAL colour options, and specialised glazing categories for sound, solar, security, and privacy. Seven window types (fixed light, top guided, side hung, side guided, fully reversible, tilt and turn, shaped) and seven door types (flush entrance, glazed entrance, patio, tilt and turn, casement, sliding patio, composite) cover both new-build and renovation use cases. Technical certifications include Secured by Design, CE marking, FSC certification (99.7% of timber), Indoor Climate Label, CO2 Neutral certification, and SEAI Better Energy Homes Programme registration.

Revenue is generated through bespoke project-based sales where each unit is manufactured to order based on customer-specified dimensions, glazing, colour, and hardware. Pricing is quote-based (free non-binding quotations following consultation), with alu-clad products carrying a 12-year warranty and an 83-year design life. Customer segments span individual homeowners, self-builders, architects/specifiers, builders, and commercial/industrial buyers (housing associations, developers). DOVISTA Group, the parent, is the largest European producer of vertical windows and doors with annual group capacity of 350,000 units, providing manufacturing scale and R&D backing; Rationel Ireland itself does not publicly disclose revenue.

Name

Rationel Ireland

Legal name

DOVISTA IRL Ltd.

Website

https://rationel.ie

Company type

Private

Founded year

1954

Operating status

Operating

Short description

Rationel Ireland (DOVISTA IRL Ltd.) supplies and installs bespoke timber and aluminium-clad timber windows and external doors for residential and renovation projects across the island of Ireland through five company-owned showrooms, serving homeowners, self-builders, architects, and builders.

Ownership category

akta.pro rank

Product category

Window and Door Manufacturing

NAICS

Wood Window and Door Manufacturing (321911)

SIC

Millwood, Veneer, Plywood, & Structural Wood Members (2430)

akta.pro primary industry

Doors, Windows & Millwork Retail (Interior/Exterior Doors, Windows, Moulding) (CRAIAEAI)

akta.pro secondary industry

Interior Doors (IMADAIAB)

Keywords

• Timber windows
• Aluminium-clad windows
• External doors
• Bespoke windows
• Window installation

Headquarters

HQ city

Edenderry

HQ country

Ireland

HQ region

Europe

Offices6 records

Markets served

GTM type

B2C

Offering type

Hardware or Manufacturing

Cost components

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

Revenue model

1. Bespoke Windows and Doors Sales: Primary revenue from manufacturing and selling bespoke timber and aluminium-clad timber windows and doors. Products are made to order based on customer specifications including size, colour, glazing type, and opening mechanisms. Revenue is project-based, varying by order size and product complexity.

Pricing tiers

Go-to-market motion2 records

Distribution channels3 records

Marketing channels6 records

Core offering

Rationel Ireland manufactures and supplies bespoke timber and aluminium-clad timber windows and external doors for residential, self-build, renovation, and commercial projects across Ireland. All products are made to order based on customer specifications including size, style (AURA, AURAPLUS, FORMA, FORMAPLUS), glazing type, colour, and hardware. The company operates five showrooms and provides full installation services throughout Ireland.

Product overview

Rationel Ireland is a window and door manufacturer offering bespoke Scandinavian-designed timber and aluminium-clad timber products. The portfolio is organised into four core product lines: AURA and AURAPLUS (contemporary style) and FORMA and FORMAPLUS (traditional style). AURA and FORMA are all-timber constructions, while AURAPLUS and FORMAPLUS feature aluminium external cladding for enhanced durability. The company offers seven distinct window types (Fixed Light, Top Guided, Side Hung, Side Guided, Fully Reversible, Tilt and Turn, and Shaped) and seven door types (Flush Entrance, Glazed Entrance, Patio, Tilt and Turn, Casement, Sliding Patio, and Composite). All products are made to order with extensive customisation options including over 200 RAL colours, various glazing types, and both double and triple glazing configurations. The company operates as part of the DOVISTA Group.

Differentiator

Problem solved

Functional benefit

Brands

• Rationel AURA: Modern style windows and doors characterized by clean lines and minimalistic design, well suited to contemporary construction and Scandinavian feel
• Rationel AURAPLUS
• Rationel FORMA
• Rationel FORMAPLUS

Products and services

• Rationel AURA Contemporary-style timber window profile characterised by clean lines and minimalistic design, available in double or triple glazing with U-values down to 0.78 W/m2 K. Suitable for contemporary construction and Scandinavian feel.
• Rationel AURAPLUS Contemporary-style aluminium-clad timber window profile with sleek flat frames and clean lines, offering enhanced durability with aluminium external cladding and an 83-year life expectancy.
• Rationel FORMA Traditional-style timber window profile with classic angled glazing bead and ovolo moulded profile, designed to complement traditional Irish and British architecture. Double-glazed U-value of 1.27 W/m2 K.
• Rationel FORMAPLUS Traditional-style aluminium-clad timber window profile with soft lines and bevelled edges, offering traditional aesthetics with the durability benefits of aluminium external cladding.

Quantifiable outcome

• U-value as low as 0.78 W/m2 K (AURA triple glazed)
• +4 more outcomes

Named customers3 records

Segments5 records

Ideal customer profiles4 records

Technology focussed No

API detail

Has API

No

API docs

API detail

Core technology

AI maturity

App detail

Feature5 records

Partnerships

Five partnerships are on record, tiered core and minor.

• DOVISTA IRL LtdcoreStrategic or Co-development PartnerDOVISTA IRL Ltd is the parent company and legal entity operating the Rationel brand in Ireland. Rationel is a trademark of DOVISTA IRL Ltd. The company is part of the larger DOVISTA Group, which is the largest European producer of vertical windows and doors, manufacturing 350,000 windows and doors annually.
• Science Based Targets initiative (SBTi)coreStrategic or Co-development PartnerDOVISTA Group (parent) has committed to the Science Based Targets initiative, setting ambitious targets for near-term and net-zero carbon reduction including 42% Scope 1 and 2 reduction by 2030 and 90% reduction across all scopes by 2050.
• FSC (Forest Stewardship Council)coreStrategic or Co-development PartnerPartnership with FSC ensures 99.7% of wood used in Rationel products is certified as sustainably sourced from responsible forests. This small label guarantees no more wood is felled than the forest can replace, and that animals, plants and people in forests are protected.
• Sustainable Energy Authority of Ireland (SEAI) - Better Energy Homes ProgrammeminorChannel Partner/ Reseller/ DistributorDOVISTA IRL Ltd is a registered contractor under the Better Energy Homes Programme (Contractor ID 19775), allowing customers to potentially access government grants for energy efficiency upgrades.
• DOVISTA GroupcoreStrategic or Co-development PartnerRationel is part of the DOVISTA Group which consists of a number of leading door and window companies across Europe. The group publishes annual sustainability reports and shares best practices across companies. DOVISTA is the largest European producer of vertical windows and doors.

Scale indicators6 records

Recent moves6 records

Expansion highlights5 records

Direct peers

• Internorm: Internorm is a family-owned Austrian premium window and door manufacturer with European-wide distribution including the UK and Ireland. Comparable on premium positioning, timber/aluminium-clad construction, and Passive House-grade performance credentials targeting the same high-end residential and architect-led segment.
• Munster Joinery: Munster Joinery is Ireland's largest timber window and door manufacturer, offering both standard and bespoke products across timber and alu-clad constructions. It is the most directly comparable domestic competitor to Rationel Ireland in terms of product range, target customer (homeowners, self-builders, builders), and Irish distribution.
• Velfac: Velfac is a Danish alu-clad timber window manufacturer and direct DOVISTA Group sister brand to Rationel. It competes in the same premium timber/aluminium-clad window segment and shares manufacturing platform, distribution model and Scandinavian design heritage, making it the closest direct comparator.

Broad incumbents

• Velux: Velux is a Danish manufacturer of roof windows, skylights and modular skylight systems, owned by the VKR Foundation. It is a much larger incumbent in the broader window category with global distribution; comparable on Danish heritage and premium fenestration positioning but addresses a different primary use case (roof glazing) than Rationel's vertical windows and doors.
• Oknoplast: Oknoplast is one of Europe's largest PVC, aluminium and timber-alu window and door manufacturers, headquartered in Poland with multi-country distribution. It is comparable as a broader incumbent competing across multiple material categories and price points, including some premium overlaps with Rationel's alu-clad range in Central European markets.
• Reynaers Aluminium: Reynaers Aluminium is a Belgian aluminium window, door and curtain-wall systems manufacturer with a broad European footprint. Overlaps with Rationel in architectural fenestration but specialises in aluminium systems rather than timber/aluminium-clad, positioning it as a broader incumbent in the same customer conversations.

Regional players

• Rationel UK: Rationel UK operates the same Rationel brand and product portfolio (AURA, FORMA, AURAPLUS, FORMAPLUS) under DOVISTA Group but sells into Great Britain rather than Ireland. Identical product offering with parallel premium positioning makes it a directly comparable regional peer rather than a competitor in the Irish market.

Market position

Strengths5 records

Weaknesses5 records

Competitive moat4 records

Key risks6 records

Key highlights7 records

Customer concentration

• Xtwitter.com/rationel_ie
• Facebookfacebook.com/RationelIreland
• Instagrampinterest.ie/rationelie/_created
• LinkedInlinkedin.com/company/rationel-ireland

Compliance6 records

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 Rationel Ireland