1) Doorwin has American certification, quality assurance has no doubt. Besides, Doorwin has full understanding of the local building code of United States, which ensures that the product passes the local inspector acceptance and avoid the situation that cannot be installed.
2) Doorwin has deep research about the local market, be familiar with local aesthetic needs and prices, can make accurate recommendation for the customer's needs. 3) Doorwin strives to provide the best performing product but not sacrifice reliability. We insist on building reliable and durable products that won't break, then customer can save troubles and extra money for repairing or replacement. That is a great value to the customer and reduce the total cost of ownership.
4) Doorwin have many local successful projects to be endorsement, reference and case in US can be provided or visited when required. We also have a team of in-house designers with no additional cost, customized windows are available with less time and charge.
5) Doorwin offers professional four-layers packaging to ensure safe delivery of products. The shipping mode is optional, if needed, our shipping agency can provide customers with door to door and clear clearance services.
6) Doorwin can assure you timely delivery and the manufacturing lead time can even be shortened to 18 days if it's urgent need. We have powerful productivity and professional team to meet any special requirements.
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