Installation Process

Expert installation made easy.

VELUX® skylight systems and Sun Tunnel® Skylights can be installed in flat or vaulted ceilings in two worry-free phases: rooftop and interior. The pros will recommend where skylight systems should be installed, so you can reap the maximum benefit from the natural light and fresh air they provide.

Installation Types

The Room

VELUX-trained pros will come inside for interior finish work and possible painting. If you have a flat ceiling, your installer will use drywall or other finish material to build a shaft from the skylight to direct the daylight into the room. This phase takes around half a day per skylight.

The Rooftop

VELUX-trained pros will cut a hole and fasten the VELUX skylight to the roof with three layers of protection to prevent leaks. Depending on the circumstances such as roof pitch and weather, the rooftop phase can take between one and three days.
2-3+ Days Total*

The Room

VELUX-trained pros will cut a hole in the ceiling to install the lower portion of the reflective tube between the roof and ceiling.

The Rooftop

VELUX-trained pros will cut a hole in the roof and install the top collar, the upper portion of the reflective tunnel, the lens and the flashing.
2 Hours*

The Room

There may be a small amount of interior drywall work depending on your replacement situation, but the majority of the replacement process will take place on the roof.

The Rooftop

VELUX-trained pros will get measurements from your existing skylights to ensure your replacements are a perfect fit, then they’ll replace your skylights
1 Day Total*

*Time estimates are based on averages. Project duration varies based on its complexity.

Get a Quote

Call us at 206-512-8419 or fill out the form to start your quote today.

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  • Robert Duncan
    We recently had two skylights replaced and the team at Seattle Skylights/Roof Boss did a fantastic job. Great communication, competitive cost, installation was professional and efficient, and the finished skylights look and function perfectly. All-around excellent experience and highly recommended!
  • Mike Tse
    If you’re looking to have skylights installed professionally, Seattle Skylights is the team to work with. I had contacted two other contractors before them, but their professionalism truly stood out. Jasmine, their salesperson, showed me brochures with pictures and dimensions of different skylight options that could work in my kitchen. She was even able to provide real-time ballpark quotes, which helped me keep track of the costs in my head and notes. The other companies I reached out to weren’t able to offer any of that. Jasmine was really easy to work with, and I ended up having two skylights installed—one in my kitchen and the other in my living room. Levi, the skylight installer, was absolutely great. The entire job took about a week, and he addressed any concerns I had with care. He was precise with his work, protected the rooms with plastic wrap, and always kept the space clean and tidy at the end of each day. For any questions I had, Gwen—Seattle Skylights’ main point of contact—was also fantastic to work with. She kept me informed about scheduling, costs, and everything else throughout the process. In the end, my skylights turned out amazing! Both the kitchen and living room have been completely transformed. It feels incredible to have so much natural sunlight pouring in—I don’t even turn on the lights until evening, which saves a lot on energy. I have absolutely zero regrets about working with Seattle Skylights. These skylights have truly changed my home for the better.
  • Vicki Rouillard
    Amazing job! Very proficient crew that showed up on time. Levi and Mauricio efficiently installed our skylights. Seattle Skylights have exceeded our expectation every step of the way from our sales person (Gwen) to the install team.