Soft Curves. Extended Views. Elegant Light Flow.

We supply and install beautifully curved bow window systems from premium brands such as Internorm, Drutex, Reynaers, and Schüco.

Unlike angular bay windows, bow windows form a gentle arc using 3 to 6 panels, creating a panoramic feel while maintaining a timeless, traditional elegance.

Bow Windows

Bow windows enhance both exterior façade and interior space, flooding rooms with natural light and creating a sense of openness. Whether you’re modernising a period home or adding character to a new build, these windows combine old-world charm with cutting-edge insulation and security features.

Choose Internorm for Passive House-certified timber-aluminium systems, Drutex for uPVC value and thermal performance, and Reynaers or Schüco for sleek aluminium frames suited to bespoke curves and contemporary design.

What Is a Bow Window?

A bow window is a curved projection built from four or more window units joined together to create a gentle arch shape. Each pane can be fixed or operable, allowing natural light to pour in from multiple angles.

The curvature of a bow window offers a softer, more graceful appearance than a traditional bay window and can span a wider opening.

What is a bow window

Where Bow Windows Work Best

  • Front-facing elevations to enhance street appeal
  • Living rooms and sitting areas with wide, sweeping views
  • Bedrooms where daylight and symmetry are key
  • Heritage or traditional homes that benefit from curved aesthetics
  • Extensions or bay-to-bow conversions

Why Choose AT-ECO?

We combine architectural knowledge with technical expertise to help homeowners, developers, and designers integrate bow windows beautifully and effectively. Our FENSA-Certified team ensures structural support, airtight fitting, and elegant finishing on every installation.

We supply only the highest quality systems from trusted European manufacturers and tailor each configuration to your style, structure, and energy goals.

📊 Bow Window System Comparison

Feature Internorm HF 410 / HF 520 Drutex IGLO 5 / IGLO Energy Reynaers SlimLine 38 / CS 77 Schüco AWS 75.SI+ / AWS 90.SI+
Material Timber-Aluminium uPVC Aluminium Aluminium
Panel Options Custom multi-panel Custom multi-panel Custom multi-panel Custom multi-panel
Thermal Performance Uw up to 0.64 W/m²K ~0.79–1.1 W/m²K ~0.8–1.0 W/m²K ~0.65-1.28 W/m²K
Opening Types Tilt & Turn / Fixed Tilt & Turn / Fixed Casement / Fixed / Tilt & Turn Casement / Fixed / Tilt & Turn
Visual Style Classic or Contemporary Chamfered / Sculpted Slimline or Traditional Minimalist, Integrated Hardware

Frequently Asked Questions

Yes. In many cases, a bay can be converted into a bow by adjusting the structure and joining more window panels into an arc. We’ll advise based on your property.

Yes. Despite the curvature, all our systems support double or triple glazing and sealed unit design for airtight performance.

Typically not, especially for replacements. For first-time installations, we recommend checking with your local planning authority.

Yes. Many clients opt for a mix of fixed centre panes and operable side units for balanced ventilation and aesthetics.

🌿 Sustainable and Future-Ready

  • Internorm uses FSC-certified timber with aluminium outer cladding
  • Drutex uses REACH-compliant uPVC with recycled content
  • Reynaers and Schüco aluminium systems are recyclable and available with sustainable finishing options
  • Bow windows also reduce the need for artificial lighting and enhance solar gain in cooler months.

Warranty & Support

Guarantees vary depending on the system and materials selected.

For tailored details based on your chosen bow window configuration, please get in touch with our team.

Recent Work

Working closely with architects, builders, and homeowners, we’ve delivered systems that combine thermal efficiency, modern aesthetics, and long-term durability—across private residences, sustainable developments, and architect-led designs.

Expert Advice & Insights

Explore detailed material comparisons, tailored installation advice,
and practical maintenance tips to keep your windows and doors performing at their best.

Solar Film for Low-E Windows: UK Overheating Solutions

Can You Film Passive Low-E Windows?

Overheating with passive low-E windows in the UK? Discover compatible window film options and expert advice on solar control glazing for ultimate comfort.

By AT-ECO, on May 28, 2025
Read more
UK Skylights: Pros, Cons & Building Regs Guide

Skylights: Dream or Regret?

Avoid skylight regrets! Learn about ideal products, installation pitfalls & UK rules for thermal efficiency, fire escape & ventilation.

By AT-ECO, on May 28, 2025
Read more
Sash vs Tilt & Turn Windows: Best for UK Apartments

Compare Sash and Tilt & Turn Windows

Choosing windows for your UK apartment? Compare sash vs. tilt & turn for ventilation, cleaning, privacy & energy efficiency. Expert advice for your flat.

By AT-ECO, on May 27, 2025
Read more

Homebuilding & Renovating Show

Creating your dream home? Visit the Homebuilding & Renovating Show! Expert advice, top brands & real inspiration—all in one place. We’re exhibiting, come say hi! 👋

Build It Live South East

Yes, we recommend booking an appointment to ensure personalised service and availability. You can schedule your visit by filling out our contact form or emailing us at [email protected].

During your visit, our team will guide you through our range of premium window and door systems. We’ll answer your questions, help you explore customisation options, and assist in finding the perfect solution for your project.

Absolutely! Bringing your project plans or drawings can help our team better understand your needs and provide tailored recommendations.

Our knowledgeable team is here to help. Whether you need advice on materials, styles, or energy efficiency, we’ll guide you through the process and ensure you make an informed decision.

Ready to transform your home?

Our experienced team provides bespoke window designs and precision installations, ensuring every detail complements your architectural style.

TOP