VKR Holding, the Danish owner of VELUX and DOVISTA, has signed an agreement to acquire StellaGroup, expanding its interests into a substantial European shutters, solar-shading and access-products business.
The proposed transaction would establish a third business area alongside VKR’s existing window operations. It would bring a complementary range of products into the group, extending its presence beyond windows and doors into external shading and building-access systems.
The agreement was announced on 6 November in VKR Holding’s original press release. Completion remains subject to employee-representative consultation and customary regulatory approvals.
A €556 million European business
Headquartered in Annecy, France, StellaGroup recorded revenue of €556 million in 2025.
The business employs approximately 2,300 people and serves 22,500 customers across France, Germany, Italy, the Netherlands and the UK. Its portfolio contains 13 brands, including Profalux, La Toulousaine, Alulux, SWS, Pratic and Biossun.
Products range from roller shutters and external blinds to awnings, pergolas, garage doors, gates and grilles. The scale of the business makes the proposed acquisition a substantial diversification rather than a small extension of VKR’s existing range.
Moving from private equity to industrial ownership
StellaGroup’s shareholders include majority owner PAI Partners, ICG and the management team.
In their joint announcement published by PAI Partners, the parties said turnover had more than doubled since the 2019 acquisition. Growth had included both organic development and acquisitions that broadened the group’s international presence.
The business operates 17 sites. VKR’s stated intention is for StellaGroup to retain its name and management, while the joint announcement describes continued autonomous operation. The disclosed plan is therefore not to absorb StellaGroup into either VELUX or DOVISTA.
Neither announcement discloses the purchase price. The €556 million figure represents StellaGroup’s 2025 revenue, not the transaction value.
Why the acquisition matters to fenestration
The VKR Holding StellaGroup acquisition would place windows, shutters, shading and access products within the same ownership group.
These categories meet at the building opening, but are frequently supplied through separate businesses and distribution channels. From a commercial perspective, a broader portfolio creates opportunities to develop relationships across more stages of a building or renovation project.
For example, a customer considering replacement glazing may also be reviewing privacy, shading or outdoor-living space. A supplier with complementary product categories could potentially participate in more of that expenditure.
However, common ownership should not be confused with an announced integrated product strategy. The releases do not set out combined packages, shared controls, changes to dealer arrangements or a timetable for technical integration.
The immediate change is the proposed ownership structure. Any subsequent coordination between businesses will need to be assessed against specific announcements.
Direct relevance to the UK market
Unlike a transaction confined to continental Europe, this deal includes a group with an existing UK presence.
British suppliers and installers should therefore monitor developments in brand strategy, distribution and product investment following completion. StellaGroup’s continued autonomous operation suggests business continuity is the stated starting point, rather than immediate consolidation of customer-facing operations.
The transaction also demonstrates how established fenestration owners can expand through adjacent categories instead of acquiring another window manufacturer.
For now, the key qualification remains its status: VKR has announced an agreement, not a completed takeover. Regulatory approvals and employee consultation must be addressed before the ownership change is finalised.
Read the original press release: https://vkr-holding.com/media/4ppn22fs/2026-11-06_press-release_stellagroup.pdf
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