What Termoglas does

Termoglas Okna d.o.o. is a privately held Slovenian manufacturer of PVC windows, aluminum entrance doors, garage doors, sliding systems, and shading solutions, headquartered in Boštanj, Slovenia, with approximately 60 employees and 45 years of operating history. The company's core product portfolio centers on PVC windows (including the flagship Termoglas 92 system with the widest installation profile in Europe, and ALU-mask variants), PVC entrance doors under the GreenEvolution and Bluevolution sub-brands, ALU entrance doors, and complementary products including garage doors, lift-and-slide glass wall systems, roller shutters, blinds, pleated shades, and mosquito nets. Manufacturing, glass production, installation, consulting, and after-sales service are all performed in-house, enabling a single-source offering from specification through warranty support.

The business model is a quote-based, project-driven direct sales operation: customers are served through physical showrooms and sales offices across Slovenia with on-site measurement, custom manufacturing, and professional installation. The customer base is diversified across residential homeowners (primary segment), industrial and commercial facilities, and hospitality businesses — with some hospitality clients maintaining 34-40 year continuous supply relationships. Revenue is generated through one-time product sales plus professional installation services, with financing optionality introduced via Leanpay and Diners Club partnerships. Distribution is currently Slovenia-wide, with a German-language website (termoglasfenster.de) signaling initial cross-border intent toward the DACH market. The company holds no institutional investors, has no disclosed funding history, and shows no AI/ML capabilities in its operations or products.

Name

Termoglas

Legal name

Termoglas Okna d.o.o.

Website

https://termoglasokna.si

Company type

Private

Founded year

1980

Operating status

Operating

Short description

Termoglas is a 60-employee Slovenian manufacturer of PVC windows, ALU doors, sliding systems, and shading products, serving residential, industrial, and hospitality customers across Slovenia through direct showroom sales and in-house installation services.

Ownership category

akta.pro rank

Product category

Windows and Doors Manufacturing

NAICS

Wood Window and Door Manufacturing (321911), Glass and Glazing Contractors (238150), Blind and Shade Manufacturing (337920)

SIC

Metal Doors, Sash, Frames, Moldings & Trim (3442), Glass Products, Made Of Purchased Glass (3231)

akta.pro primary industry

Custom Window & Door Fabrication & Replacement (HSAPAJAI)

akta.pro secondary industries

Window Replacement (Residential) (HSAPAJAA), Window Treatments & Shading Systems (Blinds, Shades, Awnings) (IMADAIAN), Architectural & Building Glazing Systems (Curtain Wall/Storefront/Canopies) (IMADAHAB)

Keywords

• PVC window manufacturing
• Aluminum door fabrication
• Sliding glass systems
• Roller shutter production
• Window installation services

Headquarters

HQ city

Bostanj

HQ country

Slovenia

HQ region

Europe

Offices1 record

Markets served

GTM type

B2C

Offering type

Hardware or Manufacturing

Cost components

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

Revenue model

1. PVC Windows and Doors: Sale of manufactured PVC windows and doors for residential and industrial applications
2. ALU Doors: Sale of aluminum entrance doors
3. Installation Services: On-site installation services including RAL installation, classic installation, and 3MONT PUFLEX mounting systems
4. Glass and Shading Products: Insulation glass, shutters, blinds, and other shading solutions

Pricing tiers

Go-to-market motion1 record

Distribution channels1 record

Marketing channels3 records

Core offering

Termoglas manufactures and installs custom PVC windows, aluminum entrance doors, garage doors, sliding glass wall systems, and complementary shading products (roller shutters, interior/exterior blinds, pleated shades, mosquito nets). The company provides complete single-source solutions including consultation, custom production, in-house glass manufacturing, professional installation, and after-sales service for residential and industrial/commercial customers across Slovenia.

Product overview

Termoglas is a Slovenian manufacturer of PVC and aluminum windows and doors with 45 years of experience and 60 employees. The product portfolio centers on three core product lines: PVC windows (Termoglas 92 premium line and ALU-mask variants), PVC entrance doors (GreenEvolution and Bluevolution brands), and ALU entrance doors. Complementary products include garage doors, sliding systems (including corner lift-and-slide glass walls), and a full range of shading solutions (roller shutters with ALU lamelle FALCON, interior/exterior blinds, pleated shades, and mosquito nets). The company operates its own manufacturing, installation, glass production, and service departments, offering complete solutions from a single provider. Services include in-house installation, after-sales service, technical consulting, and custom glass manufacturing.

Differentiator

Problem solved

Functional benefit

Brands

• Termoglas 92: PVC window with the widest installation profile in Europe, described as the strongest and most energy-efficient window in Termoglas's range
• GreenEvolution
• Bluevolution
• Super Spacer

Products and services

• Termoglas 92 PVC Windows Premium PVC window system featuring the widest installation profile in Europe, positioned as the strongest and most energy-efficient window in Termoglas's portfolio. Aimed at residential and commercial customers seeking top-tier thermal and acoustic performance.
• PVC Windows with ALU Masks PVC windows clad with aluminum exterior covers combining PVC interior insulation properties with aluminum exterior durability for residential and commercial buildings.
• GreenEvolution PVC Entrance Doors PVC entrance doors under the GreenEvolution brand featuring Streamline models with multiple opening systems for residential and commercial entrances.
• Bluevolution PVC Entrance Doors PVC entrance doors under the Bluevolution brand with Bluevolution model variants and multiple opening systems.
• ALU Aluminum Entrance Doors Aluminum entrance doors combining long lifespan, energy efficiency, and aesthetic characteristics, available in multiple ALU model styles for residential and commercial entrances.
• Garage Doors Garage doors for residential and commercial applications.
• Sliding Systems (Drsni Sistemi) Sliding systems including lift-and-slide glass walls and corner sliding wall solutions for connecting indoor and outdoor spaces in residential and commercial buildings.
• Roller Shutters (Rolete) Roller shutters for sun and weather protection, available with ALU lamele FALCON, multiple control options, and various visual finish options.
• Interior Blinds (Notranje žaluzije) Interior blinds for light control and aesthetic enhancement of windows in residential and commercial interiors.
• Exterior Blinds (Zunanje žaluzije) Exterior blinds with Krater and Krpan model variants, multiple control systems and lamelle options for sun protection of building exteriors.
• Interior Pleated Shades (Notranji pliseji) Interior pleated shades for window covering in residential and commercial spaces.
• Mosquito Nets (Komarniki) Mosquito nets for insect protection in residential and commercial windows.
• Glass Manufacturing Services (Steklarstvo) In-house glass production services including manufacturing of insulation glass with a wide selection of glass compositions and thicknesses for thermal and sound insulation.
• In-House Installation Services (Lastna Montaža) On-site window and door installation by Termoglas employees using RAL installation, classic installation, and 3MONT PUFLEX mounting systems, ensuring a single-source complete solution without subcontractors.
• After-Sales Service (Servis) Inspection and repair service for all purchased Termoglas windows, doors, shading products, and sliding systems.
• Consulting Services (Svetovanje) Professional consulting from experienced Termoglas staff guiding customers through window and door selection, requirement gathering, and recommendation of optimal solutions.

Quantifiable outcome

• 10-year system warranty on hardware and weather resistance for white profiles
• +2 more outcomes

Named customers5 records

Segments3 records

Ideal customer profiles3 records

Technology focussed No

API detail

Has API

No

API docs

API detail

Core technology

AI maturity

App detail

Feature1 record

Scale indicators3 records

Recent moves6 records

Expansion highlights10 records

Broad incumbents

• Schüco: German global leader in window, door, and facade systems. Comparable as a broader incumbent offering PVC and aluminum window systems across the same European end markets.
• Aluplast: German PVC profile producer with strong Central and Eastern European distribution. Comparable as a competing European PVC window system supplier at the profile level.
• Veka: One of Europe's largest PVC profile manufacturers supplying window fabricators. Comparable as a supplier and competitor in the upstream PVC window system value chain.
• Deceuninck: Belgian global PVC window and door systems manufacturer. Comparable as a European-scale PVC window and door competitor operating in overlapping CEE and DACH markets.
• Internorm: Austria's largest window manufacturer, with a strong presence in DACH and Central Europe. Comparable as a premium European window producer competing for the same energy-efficient window demand that Termoglas serves.
• Rehau Windows: German polymer-based solutions provider with a major window and door profile business. Comparable as an established European PVC window system competitor and broader polymer building products incumbent.

Direct peers

• Drutex: Polish manufacturer of PVC windows, doors, and roller shutters with significant export activity across Europe. Directly comparable as a vertically integrated PVC window and shading producer competing in overlapping European markets.
• M Sora: Slovenian manufacturer of wooden and wood-aluminum windows and doors. Comparable as a long-established Slovenian window producer with a similar vertical integration and project-based customer approach.
• Inotherm: Slovenian manufacturer of insulated entrance doors and window-adjacent building envelope products. Highly comparable to Termoglas as a regional, vertically integrated Slovenian producer serving residential and commercial customers.
• AJM okna-vrata-senčila: Slovenian manufacturer and installer of PVC and aluminum windows, doors, and shading products. Direct competitor with very similar product portfolio, customer base, and Slovenia-focused distribution model.

Market position

Strengths5 records

Weaknesses5 records

Competitive moat4 records

Key risks6 records

Key highlights7 records

Customer concentration

• Facebookfacebook.com/p/Termoglas-okna-vrata-steklo-100063699963910/?locale=sl_SI
• Instagraminstagram.com/termoglasokna

Revenue estimate

Valuation estimate

Number of profiles

Profiles2 records

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 Termoglas