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Now we are in San Antonio, Texas, where the owner of this house wants to turn his new home into a large courtyard with a modern style. Energy efficiency is a top priority for many homeowners, and this house in San Antonio, Texas was no exception.

After some discussion, we recommended Doorwin's energy-efficient thermal break aluminum fixed windows to help him achieve his goals.

The windows are designed to reduce heat loss in winter and heat gain in summer, which makes them an excellent choice for homeowners who want to save on heating and cooling costs without sacrificing their home's aesthetic appeal. These windows feature an aluminum frame with a thermal break that helps regulate the temperature inside the home. And the Low-E layers glass located between the two panes of glass in each window. These layers also help make sure that cold air doesn't escape through the window during winter months, and keeps excess heat out during summer months.

In addition, they're available in a variety of styles and colors—from classic styles to contemporary designs like this one — so you can create a custom look that complements your home's existing architecture. If your house is a very contemporary building, then these fully customizable irregularly shaped windows can fit your requirements perfectly.

At Doorwin, you can meet any design requirements you may have. Just provide us with your design drawings or inspirations and we will have our professional design staff to customize these windows and doors for you.

Doorwin thermal break windows are custom built to your specifications. Our windows are made to ensure the thermal performance of your building. We offer a variety of designs and styles that are sure to fit your needs, whether it be for a large structure or a smaller home. For more information on our fixed windows, please contact us at

If you're looking for a way to improve the appearance of your home while also saving money on heating and cooling costs, consider adding one of these windows. We would love to work with you!

Doorwin energy-efficient fixed windows are the perfect way to create beautiful, large facades that allow for expansive glass and natural light. Our flexibility in customization allows you to control every aspect from building design to thermal performance of the structure. Here are some reasons why we recommend you choose Doorwin Energy-Efficent Fixed Windows on your properties.

01 / Energy Efficiency

The Doorwin Thermal Break Aluminum Fixed Windows has been used in many projects throughout the United States and Canada. The products are certified by the NFRC, CSA, and other international certifications which ensures that your project will pass inspection after completion. We have a lot of experience with local building codes and climatic characteristics, so we are well-qualified to help you meet your requirements.

Doorwin’s standard option is double-pane glasses, warm-edge spacers, argon gas fill, Low-E coatings, and fully tempered or laminated glass, depending on situations or your needs, there are also other options like triple glazed laminated glass. They can not only create a comfortable and natural indoor environment but also save electricity bills and heating bills around 100~300USD per month according to your whole building’s fenestration areas. That’s a real bargain compared to choosing a regular glazing set.

The choice of glass for your windows and doors is an important one. Doorwin thermal break aluminum fixed windows are designed with a specific purpose in mind: to maximize your home's energy efficiency and comfort.

The sun is a wonderful thing, but it can also be a real pain if it's too hot outside. That's why we're here to help you make sure the SHGC (solar heat gain coefficient) values of your windows are optimized for your house's orientation, so you get the right balance of warmth in winter and cooling in summer.

02 / Drawings and Customer’s Comment

Before production, we will provide accurate sample drawings, which will clearly show the cross-sectional pattern, size, opening method and direction, pattern of the warm spacer, and the installation nodes. We will not go into production until you have signed off on the drawing to ensure that you receive a final product that meets the exact requirements of your project. Our commitment to quality is reflected in our many years of experience, and we are proud to have worked with thousands of satisfied customers. We understand the needs of both commercial and residential clients, and we offer a variety of products that are suitable for both applications.

Tempered safety glass complies with international standards to face all kinds of extreme weather or safety issues. Furthermore, doors and windows of this type frequently rely on multiple panes glazing for structural stability. In other words, common products in the market with thinner aluminum may not provide the strength required owning to their smaller proportion of frames. In this project, we applied a thermal break aluminum lift and slide door with double panes and Low-E glazing to meet the requirements of the clubhouse's large opening entrance and the energy efficiency capacity.

03 / Easy Installation

In addition, they're easy to install and maintain. With Thermal Break Aluminum Fixed Windows from Doorwin, you'll get peace of mind knowing your new windows will perform well over time and keep your home comfortable year round. Doorwin always looks for ways to reduce clients’ labor costs. Our unique flanges, assembly metal brackets design and other patented products help to easily install the windows. Labor costs during installation may exceed the window and door prices, therefore, the longer the project takes, it means you are losing money.

By offering a high-quality product with an easy installation process, we're able to help you save time and money—and that means you'll have more resources available for other important things like growing your business or spending time with your family.

Doorwin's professional packing system guarantees all products are delivered safely and without any damage. We apply a four-point packing system. Firstly, adhesive plastic film is applied on interior wood frames and exterior aluminum frames to avoid scratches on the surface. Then, a paper board is applied after we apply air bubble film surrounding the whole windows/ doors to avoid any destruction or clash. Lastly, we place them into a durable non-fumigation plywood crate to avoid any possible damage during transportation.
With years of experience shipping our products worldwide, we could guarantee to ship our products to their final destinations intact and without any damage.

About Doorwin Factories

Doorwin is one of the most professional window & door manufacturers are known for its great customized products. In Doorwin, a variety of colors, styles, and sizes of products are available to meet the client’s unique requirements. We own three ISO9000-certified modern factories in China. With a factory area of 20,000 m2 and a production capacity of 100,000 m2 per year. Doorwin Group has the scale to ensure timely delivery and the flexibility to reduce manufacturing lead times to as short as 18 days.

Feel free to contact us any time about your ideas

DOORWIN AL+ 70 Energy Efficient Tilt Turn Windows


TURN OPENING· Maximum Air Exchange
TILT OPENING · Allows Micro Ventilation, Saves More Space


Ultra-High Precision & High Strength

Meet North America Standard

The Thickness (For Window) ≥1.6mm
The Main Load-carrying Parts ≥2.0mm



LOW-E Technology Can Helps Homes Stay
Cooler In The Summer And Warmer In The Winter.


Technoform Bautec’s TGI-Spacer M – Our warm-edge spacer technology minimizes thermal bridging and has one of the lowest failure rates in the industry.


Ergonomic Design

Excellent Anti-Theft Performance RC2

Germany Roto / Siegenia Optional


Our High-precision Polyamide Is From Technoform Bautec- PA66 Nylon.
Our Thermally-broken Aluminum Profile Systems Utilize The Latest Polyamide And Low-Emissivity Foil Technologies To Minimize Thermal Bridging At The Frame And Sash.


Quality Of American Military Industry

304 S.S Protection Screen


No Scratches / Flaking / Fading

Satisfy All Your Imagination About Color

Fluorocarbon Coat Finishing Is Available At Request For Extreme Environmental Conditions.





Provide Clear Instructions
Save Installation Time


Who is Responsible
for the Customs Clearance?

Arrival of Goods

Submit Customs Clearance Documents to Customs

Tax (Paid By Us or By the Client)

Pick Up the Goods

What Should We Do If We Do If We Buy Goods, But We Don’t Know A Forwarder?

We,doorwin, Have Our Own Shipping Agent And Forwarder,who Could Take Good Care Of The Shipping, Custome Clearance, Documents, And Delivery To The Warehosue Or Job Site.

What Is The Delivery Time?

For Regular Purchase Orders, The Productions Time Will Be 3~5 Weeks From The Date Of Getting The Approved Shop Drawings. Shipping Time Will Take Another 4~5 Weeks From Our China To Local Seaport Or Warehouse.

What Is Your Payment Items?

Generally,50% Deposit Payment By Bank Wire Transfer Or Credit Card, Balance
Payment Before Shipping Is Accepted.