VIEN

Our commitments

Policies & Warranty

Every Thiên Tín product is made from brand-new materials with documented origins, from production to delivery and installation. These are the policies that apply to our customers.

  • 15 yearsproduct warranty
  • 100%new materials, documented origin
  • Freerepair or remake for factory faults

Your journey with Thiên Tín

01 · When you order

Payment

Staged payments, set out clearly in the contract.

  • Cash on delivery or after installation.
  • Bank transfer to the account on the contract or quote.
  • We send a quote or contract listing products, sizes, materials and hardware.
  • A deposit as agreed secures the order and starts production.
  • The balance is paid at handover and sign-off.
  • VAT invoices or receipts on request.
02 · On delivery and installation

Delivery and installation

Delivered and installed on site by the Thiên Tín team.

  • Priority for Hanoi, Thai Nguyen and nearby provinces.
  • Other provinces: delivery fee agreed by distance and order volume.
  • Production and delivery times are stated on the quote or contract.
  • We call ahead to book an installation time that suits you.
  • Goods are packed with surface protection before shipping.
  • Any transport damage is inspected and handled under the warranty policy.
03 · After handover

Warranty and returns

Products are guaranteed free of design, material and workmanship defects.

  • Cover follows the terms on the contract or warranty card for each item.
  • Technical support and hardware maintenance throughout the warranty period.
  • Not covered: misuse, unauthorised dismantling, or damage from natural disasters or heavy impact.
  • Made-to-measure products cannot be returned when they match the approved design.
  • Factory faults or mistakes on our side: free repair or remake.
  • Call or message us on Zalo at 0968 874 161, or email kinhdoanh@thientin.vn.
  • Share your order details and a description of the issue, with photos if possible.
04 · Throughout

Privacy

Your details are used only to serve your order and enquiries.

  • Name, phone, email, address and what you need (drawings, photos of the room).
  • History of consultations, designs, orders and feedback.
  • No sensitive data such as religion, political views or health.
  • Handling enquiries, quotes and survey bookings.
  • Fulfilling contracts: production, delivery, installation, sign-off and warranty.
  • Progress updates, and offers only if you agree.
  • We never sell, trade or rent personal data.
  • Data is shared only as needed with our team, delivery and installation partners bound by confidentiality, or authorities when legally required.
  • You can ask to see, correct or delete your data and stop marketing messages at any time.

Quick answers

15 years, under the terms written on the contract or warranty card for each item.

Read the policy

Call or message us on Zalo at 0968 874 161, or email kinhdoanh@thientin.vn with your order details, a description and photos if you have them. Factory faults are repaired or remade free of charge.

Read the policy

Made-to-measure products cannot be returned when they match the approved design. Faults or mistakes on our side are repaired or remade free of charge.

Read the policy

A deposit as agreed starts production; the rest is paid at handover and acceptance, in cash or by bank transfer.

Read the policy

Hanoi, Thai Nguyen and nearby provinces first; other provinces by agreement on distance and volume. Timing is written on the quote or contract.

Read the policy

Need more help?

Call or message Thiên Tín on Zalo; we reply during opening hours.