Smits Kozijnen

What Smits Kozijnen does

Smits Kozijnen is a Dutch manufacturer of sustainable uPVC (plastic) window frames, insulating glass, and fire-resistant doors, founded in 1932 and headquartered in Handel/Gemert, Netherlands. It operates as a subsidiary of VHZ Groep, the Dutch market leader in Kunststof kozijnen with eight production locations and approximately 650 group employees; Smits itself runs two production sites with 80+ professionals and dual-brand operations under Smits Kozijnen (plastic frames) and Smits Isolatieglas (insulation glass).

The company's core technology rests on the Kömmerling K-Vision uPVC profile system, sold in four variants (Classic, City, Trend, Cube) plus the 2025-launched ReFrame circular line, complemented by WarmCore aluminum hybrid frames, BENGglas vacuum insulation glass, and plastic sliding doors (hefschuifpuien). Four granted patents (Onderdorpel under-sill, fire resistance in plastic, Ratel-Klik locking, Lossnijmethode glass cutting) and CE certification of fire-rated plastic frames under NEN-EN 16034:2014 differentiate the offering, alongside Kiwa/KOMO-certified insulation glass produced under Sanco license.

Smits operates an exclusively indirect go-to-market: products reach end customers through a nationwide Dutch dealer (wederverkoper) network spanning all twelve provinces, providing consultation, measurement, installation, and warranty service. Pricing is quote-based and not publicly listed, with a standard 10-year warranty and ISDE subsidy guidance for qualifying insulation measures. Revenue streams split across uPVC kozijnen sales, insulation glass, fire-resistant products, WarmCore aluminum frames, and after-sales service through Kozijn Service Nederland. Customer segments include residential homeowners undertaking renovation or energy upgrades, contractors and developers requiring certified fire-safety products, and architects/specifiers.

Name

Smits Kozijnen

Legal name

SMITS KOZIJNEN

Website

https://smitskozijnen.nl

Company type

Private

Founded year

1932

Operating status

Operating

Headcount range

51–100 employees

Short description

Smits Kozijnen is a Dutch manufacturer of uPVC window frames, fire-resistant doors, sliding doors, and insulating glass, serving homeowners and construction professionals through a nationwide dealer network as part of VHZ Groep.

Ownership category

akta.pro rank

Product category

Windows and Doors Manufacturing

NAICS

Blind and Shade Manufacturing (337920)

SIC

Glass Products, Made Of Purchased Glass (3231), Miscellaneous Plastics Products (3080)

akta.pro primary industry

Frames, Sashes, Mullions & Subframes (IMADAIAH)

Keywords

• PVC window frames
• Insulation glass
• Fire-resistant doors
• Sliding doors
• Building materials manufacturing

Headquarters

HQ city

Handel

HQ country

Netherlands

HQ region

Europe

Offices2 records

Markets served

GTM type

B2B

Offering type

Hardware or Manufacturing

Cost components

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

Revenue model

1. Kunststof Kozijnen Sales: Manufacturing and selling plastic (PVC) window frames and doors in various profiles (K-Vision Classic, City, Trend, Cube) to dealers and directly to contractors
2. Isolation Glass Sales: Production and sale of insulation glass including single, HR++, triple glass, safety glass, and sun-control glass under Sanco license
3. Fire-resistant Products: CE-certified fire-resistant window frames and doors meeting NEN-EN 16034:2014 standards for building projects requiring fire safety
4. WarmCore Aluminum Frames: Premium aluminum hybrid window frames combining aesthetics with thermal efficiency for modern construction projects
5. Service and Maintenance: Repair and maintenance services through Kozijn Service Nederland for all Smits products, including warranty service

Pricing tiers

Go-to-market motion1 record

Distribution channels1 record

Marketing channels4 records

Core offering

Smits Kozijnen manufactures and sells plastic (uPVC) window frames under the K-Vision brand (Classic, City, Trend, Cube, and 100%-recycled ReFrame), aluminum hybrid frames (WarmCore), fire-resistant plastic window frames and doors certified to NEN-EN 16034, plastic sliding doors, and insulation glass (HR++, triple, safety, sun-control) produced under Sanco license, including BENGglas vacuum insulation glass. The company also provides repair and maintenance services through Kozijn Service Nederland. All products are sold to Dutch dealers and contractors for residential renovation, new construction, and commercial projects.

Product overview

Smits Kozijnen is a Dutch manufacturer of sustainable window frames and insulation glass with a multi-product portfolio. The core offering includes plastic (uPVC) window frames under the K-Vision brand (Classic, City, Trend, Cube, and ReFrame), aluminum windows (WarmCore), and specialized fire-resistant plastic frames certified to NEN-EN 16034. Complementary products include insulation glass (single, safety, sun-blocking, and triple glass) produced under Sanco license, vacuum insulation glass (BENGglas), and plastic sliding doors/heb-schuifpuien. The company operates its own factory in Gemert and operates through a dealer network across the Netherlands.

Differentiator

Problem solved

Functional benefit

Brands

• K-Vision: K-Vision plastic window profiles including Classic, City, Trend, and Cube variants for various architectural styles.
• K-Vision ReFrame
• WarmCore
• BENGglas

Products and services

• K-Vision Classic A flat-system plastic window frame with a sleek appearance and classic tint, featuring an aluminium look with modern grey tones; suitable for sleek modern architectural designs.
• K-Vision City

Quantifiable outcome

• Lifespan of 50-75 years reduces long-term replacement costs
• +3 more outcomes

Named customers5 records

Segments4 records

Ideal customer profiles4 records

Technology focussed No

API detail

Has API

No

API docs

API detail

Core technology

AI maturity

App detail

Feature6 records

Partnerships

Four partnerships are on record, tiered core.

• KömmerlingcoreTechnology or IntegrationKömmerling is the primary profile supplier for Smits Kozijnen's K-Vision window systems (Classic, City, Trend, Cube) and ReFrame circular products. This collaboration enables the production of fire-resistant plastic window frames that meet European standards. Smits was the first to achieve CE certification for fire-resistant Kunststof kozijnen using Kömmerling K-Vision profiles.
• SancocoreTechnology or IntegrationSanco is the largest insulation glass chain in Europe. Smits Isolatieglas operates under Sanco license, producing high-quality insulation glass including HR++, triple glass, safety glass, and sun-control glass with Kiwa/KOMO certification.
• Van Werven RecyclingcoreStrategic or Co-development PartnerStrategic partnership for recycling old Kunststof kozijnen from renovation projects. In collaboration with Kömmerling NL, provides 40m³ containers for collecting and recycling old plastic window frames, supporting circular economy goals.
• VHZ GroepcoreOthersParent company of Smits Kozijnen. VHZ consists of 8 production locations and 650 employees, making it the market leader in Netherlands for Kunststof kozijnen, windows, and doors. Includes Transcarbo (Hoensbroek), Europrovyl (Leeuwarden), Kumij (Groningen), Alwood (Terborg), and Kozijn Service Nederland (Wassenaar).

Scale indicators5 records

Recent moves7 records

Expansion highlights5 records

Direct peers

• Profine Group: German owner of the Kömmerling, KBE, and Trocal PVC profile brands — and effectively Smits's primary upstream supplier. Profine is a direct peer in profile-based window systems across Europe, with overlapping customer segments and product technology.
• Aluplast: German manufacturer of PVC window and door profile systems with European-wide dealer and fabricator distribution. Direct peer to Smits in residential window/door systems, energy efficiency positioning, and multi-profile product architecture.
• Salamander Industrie-Produkte: German PVC window and door profile systems manufacturer with European-wide fabricator/dealer network. Comparable to Smits in profile technology, residential/commercial segmentation, and dealer-led distribution in the DACH and Benelux regions.
• Reynaers: Belgian manufacturer of aluminum and PVC window, door, and facade systems serving the European residential and commercial markets. Highly comparable to Smits as a profile-based systems manufacturer with dealer-driven distribution and overlapping product categories (frames, sliding doors, fire-rated solutions).
• Schüco International: German-based global manufacturer of window, door, and facade systems in aluminum, PVC, and steel. Direct peer to Smits in scope (window and door frames), target customer (contractors, developers, homeowners), and emphasis on energy efficiency and certified performance (fire, security, thermal).
• Deceuninck: Belgian global manufacturer of PVC window and door profile systems with strong European dealer presence. Comparable to Smits in PVC profile systems, residential renovation focus, and emphasis on energy-efficient and recycled-content products.
• VEKA: German-based global manufacturer of PVC window and door profile systems serving fabricators and dealers across Europe and North America. Comparable to Smits in profile technology, dealer-network distribution, and product categories (frames, sliding doors, insulation glass).
• Gealan Fenster-Systeme: German PVC window profile manufacturer serving European fabricators and dealers with multi-system offerings. Comparable to Smits in product categories (frames, profiles for residential and commercial use) and channel structure.

Broad incumbents

• AGC Glass Europe: Belgian-headquartered European glass manufacturer producing flat glass, insulation glass, and coated glass for construction and industrial markets. Comparable to Smits's insulation glass portfolio (single, HR++, triple, safety) as a broad incumbent supplying dealers and fabricators across Europe.
• Saint-Gobain Glass: French-headquartered global glass manufacturer with broad European production of insulation, safety, and coated glass products. Comparable to Smits's Isolatieglas line (HR++, triple, safety, sun-control glass) as a much larger incumbent supplying construction across residential and commercial segments.

Market position

Strengths5 records

Weaknesses5 records

Competitive moat5 records

Key risks5 records

Key highlights7 records

Customer concentration

• Facebookfacebook.com/smitskozijnen
• LinkedInlinkedin.com/company/smits-kozijnen

Compliance9 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 Smits Kozijnen