services
Provide design and manufacture of doors and windows for Hospitality, Residential, Healthcare and Commercial
Residential Doors and Windows
Commercial Doors and Windows
Cooperation Process
As a professional door and window manufacturer, we are committed to providing high-quality, durable and beautiful door and window products.
01
Provide project information
Including project drawings, background, required certifications, etc.
02
Provide professional analysis
Our team of engineers will analyze the information you provide and recommend matching door and window products based on your country and weather.
03
Preliminary offer + suggestion
Confirm the materials, detailed parameters and other details of doors and windows.
04
Scheme confirmation
Confirm the quotation and plan
05
Drawing confirmation
Confirm the final drawing
06
Arrange production & transportation
According to your confirmation, we will produce your order in our workshop and assist in delivery in time
What Our Customers Reviews
As leading custom doors and windows manufacturer in China, Grandsea uses high-quality products to bring you the best user experience
