Contact Us
We will answer any questions you may have about our online sales, rights or partnership service right here.
INFORMATION QUESTIONS
FREQUENTLY ASKED QUESTIONS
What kind of company is Vandowin?
Vandowin is a professional doors and windows manufacturer based in China. We provide aluminum doors, windows, thermal break systems, and glass solutions, exporting worldwide.
How can I request a quotation?
Please send us your requirements such as size, quantity, product type, or drawings, and we will reply with a quotation within 24 hours.
Do you offer customization?
Yes. We provide customization of size, materials, glass type, colors, hardware, and more.
Do you provide samples?
Samples are available. Sample costs can be partially or fully deducted from future bulk orders.
How do you package and deliver the products?
We use wooden crates or cartons with protective film to ensure safe delivery. We support sea freight, air freight, and international logistics services.
Do you provide installation guidance?
Yes. We provide installation manuals, installation videos, and online technical support.
What payment methods do you accept?
We accept T/T, bank transfer, L/C, international credit cards, Alipay, and other payment methods.
Can I visit your factory?
You are very welcome to visit! You may schedule an in-person visit or request a virtual video factory tour.
PRODUCT & PROJECT INQUIRIES