Hydrosight Warranty

  1. Coverage
    • Subject to the conditions and limitations as stated hereinafter, Hydrosight GmbH warrants that its products will be free from manufacturing defects and will not rot, deteriorate or break down for the guarantee period.
  2. Conditions
    • The products are used and installed in accordance with the terms and conditions of the Hydrosight data sheets, installation manuals and industry standard guidelines.
    • The product must be placed in a permanently filled water basin. Longer periods of time during which the product stands dry can lead to a limitation of the warranty.
    • The General Terms and Conditions of Hydrosight GmbH apply.
  3. Resolution: Defects recognized by Hydrosight as being covered by the guarantee shall be corrected either
    1. by means of repair of the faulty product
    2. by replacement with a product in perfect working order.
    3. pay an amount not to exceed the original product cost verified to be defective.
  4. Guarantee Period
    1. The guarantee period is 5 years.
    2. All products fit for purpose 15 years or longer
    3. Guarantee period of the glazing not yellowing for 30 years, to be filed directly to Evonik Industries
    4. The guarantee claim must be lodged within the guarantee period.
    5. The guarantee period begins from the time the product is purchased from Hydrosight.
  5. The above guarantees apply to products that are bought and used outside the USA and Canada

Safety and Durability

Hydrosight windows are fundamentally designed for durability. Therefore, we do not use fiberglass-reinforced coatings, as we know that such waterproofing does not hold up over time. Instead, we utilize double-welded stainless steel frames. Combined with double silicone seals applied under factory conditions, we offer a guaranteed secure system.

Thanks to industrial-grade tank coating, our products surpass all competitors in terms of safety and longevity. Each Hydrosight window undergoes rigorous factory testing and is supplied with a quality certificate.


Each window is double sealed and individually pressure tested before shipping.