It’s International Trading,How Can I protect my Interest or Trust your company?

Doorwin is the more than 10 years Gold suppliers on ALIBABA, In additional, our factory are Verified by BV, TUV, NAMI(National Accreditation & Management Institute, which is the basic certificate for windows installed on U.S. Building), Also, this certificate in compliance with North America Construction Standards (AAMA 101/WDMA I.S.2/CSA A440-11, ASTM. NAFS 2011- North American Fenestration Standard/ Specifications for Windows, Doors and Skylights). And now we are waiting for the test results for the SAI GLOBAL certificate.

Please contact us ,we can show you more latest exporting documents and records.

Are you a Manufacturer or a Trading company?

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What processes does Doorwin have to maintain quality control?

We maintain a quality management system which meets the requirements of ISO 9001 as a minimum and develop, manufacture and check the products according to the rules of this system.

We request to sign quality assurance agreement with our material suppliers to ensure the materials quality, in production process self-inspection of each key part from cutting to frame and glass assembling as well as hardware installation must be a formal quality system of our factory.  Our QC will inspect the products at regular intervals. Last but not least we will test and inspect the finish products physically before they leave our factory to ensure that the products meet the agreed requirements, specifications, quality and performances.

Inspection photos, videos and the records from the in-process controls can be provided for evaluation.

Matching with the strict production processing control, every parts of material are picky chosen in high level. The lumber all come from the certificated supplier, and we use Henkel wood adhesive from Germany for the joints to ensure strength and low toxicity. Our standard glazing for the North American market is SGCC (Safety Glazing Certification Council and IGCC (Insulating Glass Certification Council) certified for performance and safety. Hardware Brand imported from Germany and USA such as Roto, Siegenia and Truth fit various Window system. Germany brand Technoform rubber strip for sealing.

With those craftsmanship spirit, superior material Doorwin makes *great* windows.

While it's good to have a warranty program, what are the specifics?

Doorwin is responsible for the quality of the windows and doors supplied and will provide a warranty for a period of Ten (10) years from the date of each shipment, against any manufacturing defects. The warranty is only for the original purchaser and non-transferable.

If the customer makes a claim or complaint due to damage or defects in manufacturing, materials or workmanship, photos and videos are required for evaluation. If it has been proven a defective product, Doorwin shall provide the replacement and all the expenses incurred therefrom, including the shipping shall be borne by Doorwin.

What will you do if sending me the Wrong windows?

Doorwin will send you the Shop Drawing to confirm the windows Drawing before production. if send you the wrong windows, Doorwin will replace you a new one freely.

This is my first time to import windows/Doors, I don’t know how to import? 

One stop service provides. Doorwin have over 10 years on exporting, we can do the importing for you. Save your time and money both.

What are your precise U-factors and SHGC values?

Actually, a window’s U-value and SHGC value are determined by many factors, for instance, the window opening styles, frame materials and structure, glass configurations (the number of panes, the type of glass, the type of spacer, the type of gas filled), hardware quality, sealant quality, as well as the rating method, etc.

So if customers have special requirements on U-factor and SHGC value, there is no problem for us to achieve by adjusting the frame materials, glass configurations, etc. For example, the U-factor 0.27-0.30 could be reach, even lower. Moreover, the Bureau’s testing report could be available for customer’s necessary need.  

What are your payment options?What if an order is cancelled?  Are deposits refundable?

Payment by wire transfer is the most welcome method. The payment term is usually 50% deposit before production, and the balance payment to be made before shipment.

Irrevocable Letter of Credit at sight and payment by Credit Card (Visa and Mastercard) are acceptable, while the PayPal is usually for samples payment.

If the customer wants to cancel the order, the deposit is refundable after deducting the expenses that have happened.