Product Overview
Experience the perfect fusion of modern minimalism and superior functionality with our Ultra-slim profile casement window. Designed for homeowners who demand both aesthetics and performance, this window features an innovative hidden flush handle system that disappears completely into the frame. When closed, the handle sits perfectly flush, creating a smooth, uninterrupted surface that allows you to enjoy a truly seamless, unobstructed view of te outdoors. Unlike traditional windows with bulky hardware that breaks your sightline, our flush casement windows deliver a clean, contemporary look that complements any architectural style.
Key Features
Ultra-Slim Profile Design
The exceptionally narrow frame maximizes glass area, giving you more natural light and a clearer connection to the outside world. This Ultra-slim profile casement window reduces visual clutter while maintaining structural integrity and thermal performance.
Hidden Flush Handle System
Our patented hidden handle mechanism is the standout feature of these flush casement windows. The handle tucks neatly into a recessed pocket within the frame when not in use. Want a traditional look? The same Ultra-slim profile casement window can also be fitted with a standard visible handle upon request. The choice is yours.
Integrated Insect Screen Options
Living in tropical or warm climates means dealing with mosquitoes and insects. That is why every Ultra-slim profile casement window can be paired with high-quality slim casement windows with insect screen solutions. Choose between:
In-swing hinged screen: Opens inward with the window for easy cleaning
Bifold screen: Folds neatly to the side when not needed, preserving your view
These slim casement windows with insect screen options ensure fresh air without unwanted pests.

Fully Customizable Sizing
Every home is unique. We offer custom size casement windows tailored to your exact opening dimensions. Whether you need a small bathroom window or a large living room installation, our custom size casement windows are manufactured to your specifications with precision and care.
Durable Aluminum Alloy Construction
Built to last, this aluminum alloy casement window resists corrosion, warping, and weathering. The aluminum alloy casement window frame is lightweight yet incredibly strong, supporting large glass panels without sagging. This aluminum alloy casement window construction also allows for powder coating to match your home's exterior.
Technical Specifications
| Product Details | |
| Frame Material | High-grade aluminum alloy (6063-T5) |
| Frame Width | Ultra-slim: 115mm visible profile |
| Glass Option | Double Temped glazing available |
| Handle Type | Hidden flush handle (standard) or visible handle (optional) |
| Screen Options | In-swing hinged screen / Bifold folding screen |
| Opening Style | Outward casement, inward casement |
| Custom Sizes | Any dimension |
| Finish | Powder Coated |
| Weather Seals | EPDM rubber gaskets |


Why Choose Our Ultra-Slim Profile Casement Window?
Seamless Views, Maximum Light
The defining characteristic of an Ultra-slim profile casement window is how little you see of the frame and how much you see of the outside. Traditional windows with thick frames and protruding handles interrupt your visual experience. Our flush casement windows eliminate these distractions entirely.
Ventilation Without Compromise
Thanks to the optional slim casement windows with insect screen systems, you can leave your windows open all day and night without inviting mosquitoes, flies, or other insects into your home. The screens are designed to be barely noticeable, so even with the screen engaged, you still enjoy a relatively unobstructed view.
Built to Your Exact Needs
Not every project requires standard dimensions. That is why we specialize in custom size casement windows. Our fabrication team works from your measurements to produce custom size casement windows that fit perfectly the first time. No gaps, no awkward adjustments, no compromise.
Long-Lasting Aluminum Alloy Performance
An aluminum alloy casement window offers distinct advantages over wood or UPVC. It will not rot, crack, or fade under intense sun exposure. The aluminum alloy casement window frames require minimal maintenance — just occasional cleaning with soap and water.
Applications
l Residential homes: Living rooms, bedrooms, kitchens
l Condominiums and apartments: Where view is a premium feature
l Hotels and resorts: Guest rooms and common areas
l Offices and commercial spaces: Conference rooms, executive offices
l Tropical climate buildings: Where insect screens are essential


How to Order Your Custom Size Casement Windows
1. Measure your rough opening (width x height)
2. Choose your configuration: Outward or inward opening, with or without slim casement windows with insect screen
3. Select your handle style: Hidden flush handle (standard) or visible handle
4. Pick your frame color: Powder Coated
5. Submit your measurements through our online form
We will send you a CAD drawing for approval before manufacturing your custom size casement windows. Lead time is typically 15–20 working days for custom size casement windows after drawing approval.


All Product


FAQ
Q: Can I get these flush casement windows without the hidden handle?
A: Yes. While our standard Ultra-slim profile casement window comes with the hidden flush handle, we can supply the same frame with a conventional visible handle at no extra cost.
Q: How durable is the aluminum alloy casement window frame?
A: Very durable. This aluminum alloy casement window uses marine-grade 6063-T5 aluminum with a powder-coated finish that resists salt spray, UV radiation, and humidity — ideal for coastal or tropical regions.
Q: Do the slim casement windows with insect screen affect the view?
A: Minimal impact. Our slim casement windows with insect screen use fine mesh with very thin framing. You will notice the screen only when looking very closely. From normal viewing distance, the view remains largely unobstructed.
Q: What is the maximum size for custom size casement windows?
A: For a single Ultra-slim profile casement window sash, we recommend maximum 750mm width x 1300mm height. Larger openings can be achieved with multiple sashes (twin or triple configurations).
Q: Are these flush casement windows energy efficient?
A: Yes. The aluminum alloy casement window profile accepts thermal break technology and double glazing. Ask about our low-E glass options for tropical climates.