Bullauge Round Window | Circular Window – Custom Frame Material Options

Name: Bullauge Round Window | Circular Window – Custom Frame Material Options
Brand: Fensterversand
Availability: InStock

$0.00

999 in stock

The Bullauge is a round (circular or oval) window inspired by maritime portholes. Originally used on ships for light and ventilation, this style has been adapted for home use.

It brings a unique architectural accent to spaces such as bathrooms, attics, stairwells, facades, or any interior needing a distinctive touch.

The round shape provides a soft, elegant look, while offering the same functionality as a conventional window.

Design and Customization
You can choose the frame material: wood, uPVC (plastic), or wood-aluminum hybrid depending on your preference and project needs. Glazing and opening style are also configurable: you may select fixed glass or operable window types (tilt, pivot, swing) depending on size and structural requirements. Because of the circular shape, installation requires an arched or round opening. Bullauge windows work well as fixed decorative windows or as operable windows where light and ventilation are needed.

Use Cases
Bathrooms, attics, stairwells
Gables, facades, entrance halls
Accent windows in living rooms or bedrooms
Mobile homes, boats/houseboats, tiny houses
Architectural designs requiring unique round window shapes

Pricing & Ordering (Estimate)
Each Bullauge is custom-made according to diameter, frame material, glazing type, and opening type. As such, prices vary significantly. Customers must supply precise dimensions and configuration details to receive a quote. Due to the custom nature and non-standard shape, expect higher costs than a standard rectangular window.

Orders over $800 ship free
30 day returns

Material & Dimensions

General System Data
Product type: Round / Circular exterior or interior window (Bullauge)
Frame material options: Solid wood, uPVC plastic, wood-aluminum hybrid
Frame type: Circular or oval profile — no standard rectangular frame

Glazing & Insulation Options
Standard double-pane glazing for thermal insulation and daylight
Optional triple-pane glazing, sound-insulating glass, or safety glass depending on project needs
Glass and frame selection influence thermal and acoustic properties

Frame & Finish Options
Wood: Various timber species available — exterior-grade coatings for moisture and UV protection
uPVC: Multi-chamber profile for low maintenance and decent insulation
Wood-Aluminum hybrid: Warm wood interior with weather-resistant aluminum exterior for longevity

Functionality / Opening Options
Fixed round window — for light and design accents
Operable window (pivot, tilt, or swing) — depending on size and configuration — for ventilation and light
Custom diameter sizing — small porthole style to large architectural round windows

Installation Notes
Installation requires a round or arched opening, not a standard rectangular rough opening
No standard window sill — usually flush or with custom trim/sealing
Important to verify structural opening, especially in load-bearing walls or exterior facades

Shipping & Returns

Shipping Policy

Shipping Time: Standard shipping takes 5-7 business days. Expedited options are available at checkout.
Shipping Areas: We ship to all contiguous U.S. states. No shipping to Alaska, Hawaii, or international addresses.
Tracking: A confirmation email with a tracking number is sent once your order is shipped.

Returns Policy

Return Window: Returns are accepted within 30 days of delivery.
Return Process: Contact us with your order number and reason for return. We will provide return authorization and instructions.
Refunds: Once we receive and inspect the returned item, a refund will be issued to your original payment method within 7-10 business days. Shipping fees are non-refundable.

For questions or concerns, contact customer service at contact us.

Gabriel Immo Supply

We work alongside architects and designers to identify appropriate materials for performance, finish, and aesthetic intent.

Our team translates client concepts into viable product recommendations, providing the technical clarity needed for accurate specification.

Client Experience

We believe the process should feel as refined as the product.

Every engagement is personal, efficient, and design-led—grounded in trust and guided by the pursuit of excellence.

From the first inquiry to final delivery, our focus is on clarity, communication, and craft.

Learn more

Reliable Shipping

Coordinated deliveries across the U.S. with trusted freight partners.

Dedicated Support

Personalized assistance from initial inquiry to final installation.

Damage Protection

Every shipment is inspected and insured — if it arrives damaged, we’ll make it right.

Flexible Ordering

Order by the crate, pallet, or custom project quantities to suit your needs.

Bullauge Round Window | Circular Window – Custom Frame Material Options