Why Fenster is the Best UPVC Trade Windows Supplier

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The REHAU uPVC casement windows, available in the 70mm TOTAL70 range, offer a variety of styles and colours, making them a perfect choice for both new builds and refurbishment projects. As a trusted name in double-glazed windows, they provide outstanding performance for homeowners and installers alike.

✅Aesthetic Flexibility: Choose between chamfered or sculptured designs for a sleek, modern look that complements any property.
✅Energy Efficiency: Designed to be among the best energy-efficient windows, the multi-chamber system enhances thermal performance while maintaining structural strength.
✅Durability: Crafted from high-quality PVCu, REHAU windows are low-maintenance and resistant to warping, rotting, and the need for painting, ensuring long-term reliability.
Sustainable Option: The TOTAL70 system is manufactured with 75% post-consumer waste, offering superior weather resistance, thermal insulation, and noise reduction.
✅Variety of Styles: As a leading trade window supplier, we offer a full range of uPVC Windows and Doors, including French windows, Run Through Sash Horns, Fully Reversible Tilt-and-Turn windows, Bay/Bow windows, Residential windows, and French doors.
✅Trusted Window Manufacturers: With decades of expertise as uPVC windows suppliers, we produce high-performance double-glazed window solutions that meet the demands of both trade and homeowners.

 ✅Building Regulation Compliance: With U-values as low as 0.8 W/m²K, REHAU TOTAL70 windows meet Part L Building Regulations, ensuring they exceed modern thermal performance standards.

 High-Performance Flush Fit Windows for Trade

At Fenster, we manufacture Rehau Flush Fit windows, offering trade professionals modern aesthetics, energy efficiency, and durability. Designed for new builds, refurbishments, and heritage properties, they balance traditional charm and contemporary style.

✅ Energy Efficient: Rated ‘A’ for energy efficiency, our Flush Fit windows deliver superior thermal insulation, reducing heat loss while maintaining a sleek, minimalist look.

✅ Versatile Design: Available in chamfered and sculptured frame options, they complement heritage homes, conservation areas, and modern designs* alike.

✅ High Performance & Security: Welded and Mechanical Flush Fit windows, expertly fabricated using the Rehau TOTAL70 Flush Fit system, meet BSI and PAS 24* security standards for maximum weather resistance and durability.

✅ Authentic Timber & Contemporary Looks:

• Mechanical Flush Fit windows replicate traditional timber frames when finished in woodgrain or heritage colours, ideal for conservation areas**.
• In modern shades, they create a faux-aluminium aesthetic, offering a premium look without the cost.

✅ Timber & Aluminium Alternative: The Turner Oak finish delivers a realistic timber effect with the low maintenance of uPVC. Alternatively, grey laminate finishes replicate aluminium windows at a fraction of the cost.

✅ Trusted UK-Based Manufacturing: As dedicated uPVC window suppliers, we fabricate every Rehau Flush Fit window in our UK-based facility, ensuring precision-engineered, high-performance solutions.

✅ Superior Thermal Performance: With U-values as low as 0.8 W/m²K, our Flush Fit window systems comply with Part L Building Regulations, ensuring exceptional energy efficiency. 

*Request PAS24 when quoting or ordering

**Always check local conservation area regulations before ordering. * 

Bespoke Colour Options for uPVC Windows and Doors

At Fenster, we offer a wide range of colour options to help trade professionals meet growing customer demand for customised designs. Whether your clients want the classic warmth of timber-effect finishes or a modern, sleek aesthetic, our durable, low-maintenance foils provide the perfect solution.

✅ Extensive Colour Selection: Offer your customers traditional finishes like Rosewood, Mahogany, and Golden Oak or contemporary shades such as Chartwell Green, Pearl Grey, and Pebble—all with the look of real wood but without the maintenance. (Full range in our brochure).

✅ Long-Lasting, Weather-Resistant Finishes: Our woodgrain foils are permanently bonded to the frames, ensuring they won’t fade, peel, or crack, even in extreme weather.

✅ Boost Sales & Customer Satisfaction: As a leading uPVC window supplier, Fenster helps window manufacturers and installers stand out by offering custom finishes that appeal to more homeowners.

✅ Timber & Aluminium Alternatives: Provide customers with a painted timber look in white or cream or offer a faux-aluminium aesthetic—all with uPVC's energy efficiency and affordability.

✅ Trade Support: We supply brochures, samples, and expert advice to help you effectively promote and sell our custom colour range.

White is classic, but it doesn’t suit every home. With our stunning foiled finishes, your customers can achieve the perfect look—traditional, contemporary, or bold.

At Fenster, we fabricate Rehau uPVC windows and doors, ensuring full compatibility across the Rehau range, including colour-matched Rehau trims for a seamless finish. Plus, with Rehau’s trusted guarantee, your customers can invest in quality, durability, and long-term performance.

As a trade professional or window manufacturer, providing tilt and turn uPVC windows as part of your product offering can help you attract more customers, increase sales, and future-proof your business. Here’s why:

✅ Versatility for All Property Types: These windows suit modern apartments, traditional homes, and commercial buildings, making them an easy sell to a wide customer base.

✅ Easy to Market as a Premium Product: With their sleek design, concealed hinges, and large glass areas, tilt and turn windows appeal to homeowners seeking modern aesthetics. Offering high-performance Rehau uPVC windows and doors positions you as a supplier of premium solutions.

✅ Meets Energy Efficiency & Building Regulations: With increasing demand for energy-efficient windows, these Rehau tilt and turn windows provide excellent thermal insulation, helping homeowners save on energy bills and comply with Part L Building Regulations.

✅ Superior Functionality = Strong Selling Point: The dual-action tilt and turn mechanism provides excellent ventilation, enhanced security, and easy cleaning, giving customers a high-value product they’ll appreciate.

✅ Security & Durability for Peace of Mind: With Roto NT hardware, PAS 24 compliance, and a 10-year functional warranty, your customers will benefit from reliable, long-lasting protection, making these windows a standout selling point in a competitive market.

By offering tilt and turn windows from Fenster, you can expand your portfolio with a high-demand, high-performance product that will enhance your reputation and increase your customer base.

At Fenster, we offer REHAU fully reversible pivot windows, providing low maintenance, energy efficiency, and enhanced security for your projects.

Key Benefits:

Low Maintenance & Easy Cleaning: The 180-degree reversible action allows for easy cleaning from the inside, eliminating the need for ladders or special equipment.

Energy Efficiency: Designed to achieve U-values as low as 1.0 W/m²K      (depending on glazing), these windows help keep homes warm in winter and cool in summer, reducing energy bills and lowering carbon footprints.

Customisable Options: Choose from the full range of REHAU colours and a wide selection of hardware to create the perfect aesthetic. Various frame configurations are available, including fixed lights on the top or side.

Enhanced Security: All reversible frames feature Mako Twin Cam locking and Roto PN reversible gearing as standard, meeting PAS 24 requirements for top security.

Superior      Weather Performance: Independently tested to achieve the highest BSI      ratings for wind, water, and air, REHAU frames offer durability and long-lasting protection from the elements without rotting or losing functionality.

At Fenster, we partner with REHAU because their window solutions align with our commitment to quality, sustainability, and innovation. REHAU has been setting the standard for over 30 years, delivering premium window systems that meet the growing demand for environmentally responsible products while ensuring long-term success for our trade customers.

Key Benefits:

Sustainability: REHAU’s focus on using recycled polymers and promoting a circular economy helps reduce environmental impact. By offering sustainable window solutions, you can meet your clients' increasing demand for eco-friendly products while contributing to a greener future.

Energy Efficiency: REHAU windows are designed for maximum energy efficiency, helping homeowners reduce energy costs and lower their carbon footprint. This appeals to environmentally conscious clients and ensures compliance with modern energy performance standards.

Longevity and Performance:
REHAU’s windows are built to last, providing exceptional durability and long service life. As a trade partner, this means fewer callbacks, reduced maintenance concerns, and satisfied customers who appreciate the long-term value of their investment.

Future-Proof Solutions:
As the window industry evolves with changing demands, REHAU’s innovative designs position you to offer cutting-edge solutions that not only meet today’s needs but are built for future success. This allows your business to stay competitive and relevant.