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

Are you tired of squeaky door hinges that never seem to hold up? Look no further than the innovative Relevant Geared Hinge. This revolutionary piece of hardware is designed to provide smooth operation and long-lasting durability for all your doors. Whether you're a homeowner or a business owner, upgrading to Relevant Geared Hinges is a game-changer you don't want to miss.
One of the biggest advantages of Relevant Geared Hinges is their exceptional durability, especially when it comes to heavy doors. Traditional hinges may struggle to bear the weight of solid wood doors or metal-clad doors, leading to premature wear and tear. With Relevant Geared Hinges, you can say goodbye to sagging doors and hello to a lifetime of reliability.
The secret lies in the gears integrated into the hinge mechanism. These gears distribute the weight of the door evenly, preventing excessive stress on any one point. As a result, your doors will open and close smoothly, year after year, without any signs of wear or strain.
Ever had a door that required a herculean effort to open or close? It's frustrating, to say the least. But with Relevant Geared Hinges, operating doors becomes a breeze. The gear system ensures that the door's weight is supported throughout its swing, effectively reducing friction and eliminating resistance.
Imagine effortlessly pushing or pulling your doors with a single finger. That's the kind of convenience Relevant Geared Hinges offer. Whether you're carrying groceries or have your hands full, these hinges make entering and exiting rooms a smooth experience.
Functionality is essential, but aesthetics play a significant role in any architectural design. Relevant Geared Hinges not only perform exceptionally well, but they also boast a sleek and modern design that enhances the overall appearance of your doors and interiors.
These hinges are available in various finishes, allowing you to choose the one that best complements your door hardware and decor. Whether you prefer a classic brushed nickel finish or a bold matte black, Relevant Geared Hinges provide the perfect fusion of functionality and style.
Worried about the installation process? Don't be. Relevant Geared Hinges are designed with ease of installation in mind. These hinges can be easily retrofitted to replace your existing hinges, saving you time and effort.
If you're building a new property or remodeling a space, Relevant Geared Hinges are equally convenient to install. With comprehensive installation guides readily available, even those with limited DIY experience can confidently set up these hinges.
When it comes to smooth operation, unmatched durability, and aesthetic appeal, Relevant Geared Hinges are the go-to choice for all your door needs. Say farewell to squeaky hinges, sagging doors, and resistance-filled movements.
Investing in the quality and reliability of Relevant Geared Hinges will not only provide convenience in everyday life but also enhance the value of your property. So, why wait? Upgrade to Relevant Geared Hinges today and experience a new level of door perfection!
geared hingeWith 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.