Custom Doors & Windows

We manufacture aluminum windows and doors, entrance doors, and interior doors.
Choose the opening style, materials, and finishes that suit your space, with custom sizes to bring everything together.

Explore Our Aluminum Windows

Find the right balance of daylight, fresh air, and views. Explore our aluminum windows by opening style, then choose the size, finish, and glass for your space.

Casement Windows

Side-hinged windows that open wide for fresh air, with a simple frame that suits a range of interiors.

Sliding Windows

Panels slide horizontally along a track, making them a practical choice where swing space is limited.

Awning Windows

Hinged at the top, these windows open outward from the bottom for ventilation in bathrooms, kitchens, and other spaces.

Fixed Windows

Fixed glass panels frame the view and bring in daylight, with no opening sash to interrupt the glass.

Explore Our Doors

From glass patio doors to entrance and interior doors, explore designs for moving between spaces. Customize the dimensions and finishes to match the way you live.

Sliding Glass Doors

Large glass panels connect indoor and outdoor spaces, sliding along a track without swinging into the room.

Bifold Doors

Connected panels fold to the side, opening up a wider connection between your room and the outdoors.

Entrance Doors

Create a welcoming entrance with a door sized and finished to complement your exterior.

Interior Doors

Complete bedrooms, bathrooms, and shared spaces with door designs that coordinate with your walls, floors, and cabinetry.

Details That Make the Difference

The right door or window does more than complete a room. Consider how its frame, opening style, and glass affect everyday comfort.

Natural Light

Frame proportions and glass area shape the view and the amount of daylight entering your room.

Everyday Ventilation

Choose how each window opens around your furniture, available space, and need for fresh air.

Thermal Comfort

Ask about thermal-break frames and insulated glass options to help manage heat transfer through your windows.

Privacy Where It Matters

Explore privacy glass for bathrooms and other spaces where clear glazing may not be the right fit.

Available features vary by product and configuration.

Customize Your Doors & Windows

Start with the look you want and the dimensions you need. We help you bring the frame, finish, glass, and hardware together in a design that fits your space.

Sizes & Layouts

Match the width, height, panel arrangement, and proportions to your openings.

Opening Styles

Choose how the panels slide, fold, or swing, with room for comfortable everyday use.

Frames & Door Materials

Compare frame profiles and door constructions for the look and use you have in mind.

Colors & Finishes

Coordinate frame colors and door finishes with your walls, flooring, and cabinetry.

Glass Options

Discuss clear or privacy glass and suitable insulated glazing for your selected system.

Hardware & Accessories

Choose compatible handles, locks, hinges, and other accessories for your doors and windows.

Options and size limits vary by model. We confirm the available configuration before production.

How Custom Ordering Works

Share Your Ideas

Send measurements, photos, or drawings, along with the styles you like.

Choose the Details

Review the materials, finishes, glass, and hardware with our team.

Confirm Your Order

Approve the dimensions, configuration, and quotation before production.

Manufacture & Inspect

We manufacture your order and check it before packing for shipment.

Doors & Windows in Your Space

See how frame colors, glass, and door finishes work with different interiors. Use these design ideas to find a direction for your own selections.

Doors & Windows for Hotels

From guest room doors to balcony systems and lobby entrances, we offer coordinated options for privacy, sound control, safety, and hotel interiors.

Doors & Windows for Apartments

Choose entrance doors, interior doors, balcony doors, and aluminum windows designed around different layouts, finishes, ventilation, and natural light.

Doors & Windows for Office Buildings

Glass doors, aluminum windows, and architectural door systems create bright, functional workplaces with a clean and consistent appearance.

Doors & Windows for Retail Spaces

Storefront glazing, entrance doors, sliding systems, and large windows provide clear views, easy access, and durability for high-traffic spaces.

Why Choose OKBuild?

We bring manufacturing, product selection, and quality checks together to help you order doors and windows with clear, agreed details.

Our Own Manufacturing

We manufacture to the dimensions, materials, and finishes confirmed for your order.

Product Selection Support

Our team helps you compare styles, finishes, and configurations before you decide.

In-House Quality Checks

We check dimensions, finishes, hardware, and operation before products are packed.

Export Packing

We arrange protective packing around the size, materials, and shipping needs of your order.

Doors & Windows FAQs

Can I order custom sizes?

Yes. Send us your opening dimensions or drawings. We will review the available sizes and panel arrangements for your selected door or window before confirming the order.

What is the difference between casement, sliding, and picture windows?

Casement windows open on side hinges. Sliding windows move horizontally along a track. Picture windows stay closed and are designed for daylight and views rather than ventilation.

How do I choose between sliding and bifold doors?

Sliding doors move along a track without swinging into the room. Bifold doors fold into a stack at the side. Consider the clear opening you want and the space needed for the panels.

Can aluminum windows be energy efficient?

Their performance depends on the complete frame and glass configuration. Thermal breaks, insulated glazing, and suitable Low-E coatings can help reduce unwanted heat transfer. Ask about the options and performance information for the model you are considering.

Can I match my door and window finishes?

We can help coordinate colors, textures, and hardware across your selections. Different materials may look slightly different, so compare samples before confirming the final finishes.

What should I send for a quote?

Share the product types, approximate sizes, quantities, preferred finishes, and delivery country. Photos or drawings help us understand what you need and identify any details still to be confirmed.

Get a Quote for Your Doors & Windows

Tell us what you need, or send a photo of a style you like. We will help you explore the options and prepare a quote based on your selections.