H-vinduet Fjerdingstad

What H-vinduet Fjerdingstad does

H-vinduet Fjerdingstad is a third-generation, family-owned Norwegian manufacturer of timber windows and doors, founded in 1949 and headquartered in Hokksund (between Drammen and Kongsberg). Its signature product is the H-vinduet, a top-hinged window design developed in 1959 that now anchors the corporate identity; the broader catalog includes timber windows and entrance doors with optional aluminum cladding, customization in wood species, surface treatment, and fittings, and (as of June 2022) a new sliding door line. Manufacturing is split between the Hokksund facility and the Norwood subsidiary in Poland (established 1999, factory operational 2004) near Gdansk, providing a lower-cost production base for the Norwegian and broader European market.

The company sells exclusively through a 200+ authorized dealer network covering Norway's principal building-supply chains — including Maxbo, Byggmakker, Byggtorget, XL-Bygg, and Mestergruppen — with quote-based, configure-to-order pricing on each project. It holds NDVK product certification and Miljøfyrtårn environmental certification, and was named "Det Gylne Sagblad" Company of the Year in 2011. Leadership is held by third-generation family member Knut Einar Fjerdingstad (CEO); the firm has remained private with no disclosed external funding.

Revenue mechanics are transactional and dealer-mediated: end customers configure products online or via dealers, receive quotes, and place project-level orders; the company fulfills via its Hokksund and Polish operations, supported by its own delivery fleet. Customer segments span residential renovation, professional builders, and the Norwegian cabin/hytte market, with no disclosed concentration in any single account. Adjacent revenue comes from branded maintenance products (vaskerenser, smøring).

Name

H-vinduet Fjerdingstad

Legal name

H-vinduet Fjerdingstad AS

Website

https://fjerdingstad.no

Company type

Private

Founded year

1949

Operating status

Operating

Headcount range

11–50 employees

Short description

H-vinduet Fjerdingstad is a third-generation, family-owned Norwegian manufacturer of timber windows and doors, selling exclusively through a 200+ authorized dealer network across Norway's major building-supply chains, with production split between Hokksund and a Polish subsidiary.

Ownership category

akta.pro rank

Product category

Timber Window and Door Manufacturing

NAICS

Wood Window and Door Manufacturing (321911)

SIC

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

akta.pro primary industry

Windows (IMADAIAC)

akta.pro secondary industry

Interior Doors (IMADAIAB)

Keywords

• Timber window manufacturing
• Wooden door production
• Aluminium clad windows
• Passive house glazing
• Custom door fabrication

Headquarters

HQ city

Hokksund

HQ country

Norway

HQ region

Europe

Offices2 records

Markets served

GTM type

B2C

Offering type

Hardware or Manufacturing

Cost components

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

Revenue model

1. Window and door sales: One-time product sales of timber windows and doors through authorized dealer network. Products include various window types (top swing, side swing, fixed, tilt-turn, etc.) and door types (balcony doors, sliding doors, folding doors). Revenue is generated from product sales with no direct-to-consumer sales.
2. Customization and accessories: Additional revenue from customization options including glass choices (energy-saving, soundproofing, self-cleaning, solar control), bars/mullions, thresholds, and special dimensions.
3. FDV documentation and technical services: Sales of maintenance documentation, installation instructions, and performance declarations for professional customers.

Pricing tiers

Go-to-market motion1 record

Distribution channels1 record

Marketing channels4 records

Core offering

H-vinduet Fjerdingstad AS manufactures quality timber windows and doors, focusing on style and functionality. The company produces a portfolio of window types (top swing, side swing, fixed, tilt-and-turn, top-hinged, basement, garage) and door types (outward-opening, inward-opening, sliding, bi-folding), with optional aluminium cladding, multiple glazing choices, decorative bars, and custom dimensions designed for Norwegian climate conditions.

Product overview

H-vinduet Fjerdingstad is a Norwegian manufacturer of high-quality timber windows and doors established in 1949. The product portfolio centers on the H-vinduet (the signature 'H-window' originally developed as a revolutionary housewife's window in 1959) and includes multiple window types (Toppsving, Sidesving, Fastkarm, Sidehengslet, Innadslående/Tilt & Turn, Topphengslet, Kjellervindu, Garasjevindu) and door products (Utadslående dør, Innadslående dør, Skyvedør, Foldedør). The company offers extensive customization options including various glass types (energy-saving, noise-reducing, sun-regulating, self-cleaning, safety, fire-resistant), decorative bars/mullions (through-going, clip-on, decorative styles), and aluminum cladding for reduced maintenance. Products are available in standard sizes or custom measurements, with U-values meeting Norwegian passive house standards. The company operates through a nationwide dealer network across Norway.

Differentiator

Problem solved

Functional benefit

Products and services

• Toppsving (Top-swing window) Top-swing window that opens outward from the top hinge, allowing easy cleaning from inside the home.
• Sidesving (Side-swing window) Side-swing window that opens outward from the side hinge, enabling interior cleaning.
• Fastkarm (Fixed window) Fixed window frame without opening function, designed for maximum light intake.
• Sidehengslet (Side-hinged window) Side-hinged window that opens outward from the side for ventilation and access.
• Innadslående (Tilt-and-turn window) Tilt-and-turn window that opens inward, offering both ventilation tilt and full opening turn functions.
• Topphengslet (Top-hinged window / H-vinduet) Top-hinged window that opens outward from the top for controlled ventilation; the original H-vinduet design (introduced 1959) that can be turned 180 degrees for easy interior cleaning.
• Kjellervindu (Basement window) Basement window designed for installation below ground level, providing light and emergency exit capability.
• Garasjevindu (Garage window) Garage window designed for garage applications with appropriate insulation and durability.
• Utadslående dør (Outward-opening door) Outward-opening door designed for exterior use, providing secure entry and weather resistance.
• Innadslående dør (Inward-opening door) Inward-opening door with tilt-and-turn functionality for flexible ventilation and access.
• Skyvedør (Sliding patio door) Sliding patio door with large glass surfaces for maximizing natural light and outdoor views, available with optional soft-close mechanism; latest generation launched June 2022 with U-value as low as 0.74 W/m²K.
• Foldedør (Bi-folding door) Bi-folding door system that opens multiple panels to create wide openings between indoor and outdoor spaces.

Quantifiable outcome

• Up to 40% of heat loss in old buildings can come from windows
• +3 more outcomes

Segments3 records

Ideal customer profiles2 records

Technology focussed No

API detail

Has API

No

API docs

API detail

Core technology

AI maturity

App detail

Feature4 records

Partnerships

Five partnerships are on record, tiered minor and core.

• Strømsgodset ToppfotballminorOthersSports club sponsorship. Strømsgodset Toppfotball is a football club from Gulskogen in Drammen, founded February 10, 1907. They play home matches at Marienlyst stadium and have won two league championships and five cup titles.
• Hokksund IdrettslagminorOthersLocal sports club sponsorship. Founded January 3, 1904, originally as Eiker Skiklub. The club focuses on football, handball, and skiing.
• Simostranda ILminorOthersLocal sports club sponsorship. Simostranda is a village in Modum municipality, known for Ole Einar Bjørndalen. The club provides community belonging for local residents.
• Tre-RingencoreStrategic or Co-development PartnerTre-Ringen is an apprenticeship quality assurance organization. H-vinduet Fjerdingstad was instrumental in founding Tre-Ringen in 1996. The organization helps quality-assure the training of apprentices and supports recruitment to the trade.
• Norwood (subsidiary)coreStrategic or Co-development PartnerWholly-owned subsidiary in Poland established in 1999 with factory completed in 2004. Serves parts of the European market. Manufacturing located outside Gdansk.

Scale indicators5 records

Recent moves7 records

Expansion highlights4 records

Direct peers

• Reksten Vinduer: Norwegian timber window manufacturer serving residential and cabin markets. Overlaps with H-vinduet Fjerdingstad's Norwegian dealer channel and product range (timber windows for Norwegian climate).
• Velfac: Danish-origin manufacturer of composite timber/aluminium windows and doors owned by VKR Holding. Competes with H-vinduet in the Scandinavian premium window market with similar energy-efficiency positioning.
• NorDan AS: One of the largest Scandinavian manufacturers of timber and timber/aluminium windows and doors. Closest direct competitor to H-vinduet Fjerdingstad in the Norwegian premium window segment, with overlapping dealer channels and product architecture.
• Natre Vinduer: Norwegian manufacturer of high-end wooden windows and doors based in Hå i Jæren. Direct competitor in the Norwegian premium timber window market with comparable product range and dealer-driven distribution.
• Internorm: Austrian manufacturer of premium timber, timber/aluminium, and uPVC windows and doors. Comparable to H-vinduet in positioning around passive-house-grade U-values, custom configurations, and European dealer distribution.

Regional players

• Drutex S.A. One of Europe's largest window and door manufacturers, based in Poland. Operates the same subsidiary geography as H-vinduet's Norwood, but competes more on price-led volume than on the premium Norwegian-brand positioning H-vinduet occupies.

Broad incumbents

• VELUX Group: Danish-owned global leader in roof windows and skylights. Adjacent competitor in the building openings category, serving overlapping customer segments (renovation, energy efficiency) but focused on roof applications rather than façade windows.
• Jeld-Wen: Global manufacturer of windows, doors, and panels with Scandinavian operations. Competes in the broader window/door category across Europe, including Norway, with significantly greater scale and product breadth than H-vinduet.

Others

• Stora Enso: Finnish-Swedish forest products and engineered wood supplier. Not a direct window manufacturer, but a key upstream input provider for European window producers including H-vinduet, and a competitor in adjacent mass-timber and wood-component categories.
• Bygg1 / Byggmakker (dealer channel): Major Norwegian building-materials retail chains that carry H-vinduet products alongside competitor brands. Included as an ecosystem participant — they shape end-customer choice in the same dealer channel through which H-vinduet reaches the market.

Market position

Strengths4 records

Weaknesses4 records

Competitive moat4 records

Key risks5 records

Key highlights6 records

Customer concentration

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Revenue estimate

Valuation estimate

Number of profiles

Profiles9 records

Subsidiaries1 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 H-vinduet Fjerdingstad