Certifications & Test Reports
Over 50 USA & EU fenestration certifications and test reports.

Steel casement windows are a beautiful and timeless feature in many older homes. However, as time takes its toll, these windows may need some restoration work to bring them back to their former glory. In this comprehensive guide, we will walk you through the steps of restoring steel casement windows, from assessing the condition to cleaning, repairing, and refinishing. Let's dive in!
Before starting any restoration work, it's important to assess the condition of your steel casement windows. Look for rust, decay, broken panes, or any other damage. Assessing the condition will help you determine the extent of the restoration needed and the materials required for the job.
To restore steel casement windows, you'll need a few essential tools and materials. Here's a list to get you started:
First, clean the windows thoroughly using a mild detergent and water. Remove any dirt, dust, or debris. Next, use a paint scraper and wire brush to remove any old paint or rust. It's important to have a smooth surface for the next steps, so consider using sandpaper or a power sander to achieve this.
Inspect the windows for any cracks or damage. Use epoxy or putty to fill in any cracks, and sand the repaired areas until smooth. Once the repairs are complete, apply a suitable primer to ensure good paint adhesion. Allow the primer to dry, and then apply a high-quality paint specifically designed for metal surfaces.
If your steel casement windows have broken glass panes, carefully remove the old glass and replace it with new ones. Measure the dimensions accurately and choose a glass thickness that matches the original. Apply a thin bead of caulk around the edges of the new glass pane and carefully place it into the frame. Allow the caulk to dry completely before moving on.
To improve the energy efficiency of your restored steel casement windows, consider adding weatherstripping. Apply weatherstripping to the edges of the windows to prevent drafts and enhance insulation. This step will not only help with energy efficiency but also make your windows more comfortable during extreme weather.
Once you've completed the restoration, it's essential to maintain your steel casement windows properly. Regularly clean them with a mild detergent, inspect for any signs of deterioration, and touch up any chips or scratches in the paint to prevent further damage.
Restoring steel casement windows can be a challenging but rewarding project. By following these steps, you can revive the beauty and functionality of your windows while preserving their historic charm. Remember, patience and attention to detail are key throughout the restoration process. Enjoy the transformation and the satisfaction that comes with bringing new life to your home's steel casement windows!
restoring steel casement windowsWith Doorwin, you can have all of this with a simple move. This is because we believe that the best way to achieve your goals is by working with
our customers to find solutions to their problems.Our team of designers and engineers are dedicated to solving these problems by creating
products that are designed to be easy to install, easy to maintain and repair, while being cost-effective.
Over 50 USA & EU fenestration certifications and test reports.
TPS glazing ensures that no air leakage and fogging issues for 25 years warranty.
More than 4000 high-end bespoke fenestration projects in North America.
Doorwin products meanwhile with half price compared with your local dealers.
Our team of experts will work with you to develop a bespoke plan that fits your needs. We take a holistic approach to the planning process, combining our technical expertise with our knowledge of customer requirements and project constraints.
Doorwin is the manufacturer of full custom fenestration systems, and we're here for you. We provide you with the freedom to design your windows, doors, and more with no additional charge for special shapes, hardware styles, and color choices. Your vision is our inspiration; our job is to make it a reality.
Our products are made to pass your local inspector's verification and are built under USA building codes so you can rest assured that they are safe and sturdy. Choose Doorwin to experience the best bespoke fenestration service available today!
We take care of the entire process for you, from beginning to end. We have our own expertise and will provide free-charge design development & contract documentation with CAD and BIM drawings. In addition to elevation details and installation design, we will double-check that the products match the drawings and project specifications through video or pictures. We'll help you specify the delivery schedule and logistics service whilst keeping costs to a minimum.
We're proud to be one of the top exporters of windows and doors to the United States. We pack each window individually and in four layers, and finally into wooden boxes with non-fumigation, and at the same time, there will be a lot of shockproof measures in the container to protect your items. We ensure that your products will arrive at the sites in good condition after long-distance transportation.
Doorwin has been exporting tens of millions of dollars of windows and doors to the U.S. every year, and we know that improper packaging can cause breakage of the product when it arrives on site. What the client concerns, we concern most.
Doorwin experts are experienced in working with architects, builders and homeowners to ensre your vision becomes a reality.Welcome to visit a showroom, ask questions about product pricing, request a quote and more.
We are tested by the following standards:
-NFRC (North American Fenestration Rating Council)
-AAMA (American Architectural Manufacturers Association)
-WNMA (Wood National Monument Association)
-CSA101 (Canadian Standards Association)
-I.S.2 (International Standard ISO/IEC 17025)
-A440-11 (Standard for Fire Testing of Door Assemblies for Charging Rooms)
Doorwin is a company that specializes in custom-made doors and windows. We understand that every home is unique, and we are committed to providing you with the highest quality products possible.Our products are inspired by different lifestyles, and we respect your vision when designing them. Our designs are made specifically for you, so there is no additional cost. We work across styles and profiles, whether you're remodeling an old house or designing your new dream home. Find inspirations here and we will fulfill all your imaginations.