Two Decades of Excellence

As we approach our 20th anniversary, we remain committed to offering the finest UPVC products and professional services—just as we always have.

Why is Cfour Different?

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50-Year Warranty

An unmatched guarantee backed by proprietary expertise and internationally recognized certifications.

Exclusive HOTMELT Technology

Knowledge-based manufacturing combined with innovation to deliver products with truly unique features.

After-Sales Support

We are committed to delivering top-tier services, backed by the expertise of our most professional engineers.

About Cfour:

Cfour is a well-known and trusted brand under Fanavar Plastic Sepahan Holding, with over two decades of continuous and dynamic presence in the UPVC industry. Backed by more than 300 skilled staff members, Cfour is recognized as one of the leading UPVC profile manufacturers in Iran.

Producing high-quality and competitively priced products has always been one of Cfour’s core goals. To achieve this, we have spared no effort and consistently leveraged the latest global technologies in our production process.

Cfour UPVC profiles are manufactured to the highest standards and hold certifications from the Iran National Standards Organization, as well as prestigious international accreditations such as Arizona and Atlas (USA)—a testament to the premium quality and long-lasting value of our products.

Product Categories

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Opening profile

Minimal Energy Loss, Maximum Insulation Against Heat, Noise, and Dust

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Sliding profile

Reduced Energy Loss and Space-Saving Design Are Key Advantages of These Windows

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Auxiliary tools

A Complete Range of Tools for UPVC Window and Door Renovation and Customization

International-Grade Quality and Trust

Cfour – The Future of Colored Profiles with HOTMELT NANO Technology

HOTMELT TECH is one of Cfour’s key innovations. Thanks to this advanced technology, Cfour uPVC profiles have earned the distinction of being a knowledge-based product. HOTMELT technology, combined with nanotechnology, is used in the production of Cfour uPVC profiles. In this process, high temperature and pressure are applied to create a molecular bond between the hotmelt coating and the outer surface of the profile. This results in exceptional durability and long-lasting color stability, even under harsh weather conditions.

Tested & Proven in the Arizona Desert

Due to the high importance of color stability in double-glazed windows, samples of Cfour’s uPVC door and window profiles were sent to the United States for quality and color resistance testing. These samples were tested under the supervision of Atlas Laboratory—one of the most reputable weathering test labs in the world.

It is worth noting that Atlas Laboratory operates 25 global sites and runs two commercial artificial weathering labs: one at its headquarters in Chicago and another near Frankfurt, Germany.

Cfour profiles underwent advanced weathering and color stability tests using the cutting-edge UA-EMMA system in open-field conditions in the Arizona and Florida deserts.

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FAQ

What Is the Best UPVC Profile?

sing uPVC profiles for double-glazed windows offers several advantages, including no need for painting, low maintenance costs, excellent insulation, and resistance to moisture and rot.
However, the best uPVC profile is one that resists discoloration caused by sunlight—a common issue with many profiles on the market.
Cfour has solved this problem using its exclusive Nano and HOTMELT technologies, delivering uPVC profiles that maintain their original color even under harsh sunlight.

UPVC profiles used for double-glazed windows are distributed through an official supply network and delivered to UPVC window and door fabricators.
To learn more about purchasing Cfour profiles, please contact us at +98 31 3333 9999.

Standard uPVC profiles are originally produced in white, but they can be laminated in various colors to match different architectural styles.
With its exclusive technology, Cfour has developed high-performance colored uPVC profiles that are completely resistant to discoloration. Unlike traditional laminated coatings, these profiles do not scratch or degrade under harsh weather conditions.

The price of UPVC profiles depends on several factors, including raw material fluctuations, formulation components, and the final product quality.
To get the latest price list for Cfour UPVC window and door profiles, please visit our website.

Replacing old windows with double-glazed units is a smart investment for renovation projects. Not only does it provide excellent insulation and help reduce long-term energy costs, but the installation process is also quick and hassle-free.

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