Velux roof skylight windows and sun tunnels 10-year "No Leak" installation warranty - Velux 20/10/5 product warranty



As the world leader in roof windows and skylights, we stand behind our products with a promise of lasting service and quality. That is a promise we have kept for over 50 years, and we are pleased to extend our promise to you.

If you think that all skylights leak, it’s time to think again. VELUX® roof windows and skylights do not leak. Proven in installations and climates throughout the world, our exclusive flashing systems will keep you dry and comfortable.

Our deck mounted skylights come with an industry first 10-year “No Leak” installation warranty that covers correct skylight and appropriate flashing installations (product and labor) against leaks, no matter who installs the skylight. For important details about this outstanding warranty, please see our warranty brochure.

We believe the best guarantee is the one you never have to use, therefore, we build quality into every product. We do offer the VELUX 20/10/5 years limited product warranty for specific product coverage issues. If you have concerns about your VELUX products that may require a warranty claim, the warranty brochure includes specific steps for you to follow that will help VELUX better assist you.

Download our warranty (PDF) or call us toll-free at 1-800-88-VELUX for a printed copy.


3 Layers of Water Protection

Now with the new Deck Seal technology

  1. Introducing a third layer of water protection. The pre-attached deck seal on all deck mounted skylights provides a
    seal between the frame and  roof deck for a leak-proof installation.
  2. Adhesive underlayment for secondary water protection against the harshest weather conditions.
  3. Engineered flashing for easy installation and  Engineered flashing for easy installation and  primary water protection.