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 805-468-4892 or fill out the form to start your quote today.

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  • Rob G.
    We had Big Coast Skylights replace 3 of our existing skylights as well as install a solar tube. We upgraded one of the skylights to the opening type. The communications with BCS was outstanding. Everything was articulated clearly with no hidden gotchas. Brian was upfront and honest with his assessment of our wants and needs and BCS was able to deliver an outstanding experience and product. The installation was completed within the timeframe given with minimal distraction to us. I really wish they did more than skylights! 10/10 would recommend to anyone looking to have new or upgraded skylights installed. Thanks Brian and Cary.
  • Shelley Kramer
    I just had 3 skylight’s put in home with Brian and Cary and I honestly can’t say enough good things about the job they did!! The communication is fantastic every timeline was as promised! The work they do is perfection! They leave your home as they found it! Clean!! I was just so impressed every step of the way!! Thank you both !! We LOVE our new SKYLIGHT’S!!
  • William Arnold
    Big Coast Skylights did great work on replacing our old skylight and installing a new one. I highly, highly recommend them! Brian and Cary are super professional and did great work. In addition to replacing our old skylight, they improved and modernized our old skylight well, and installed more modern lighting in our kitchen as part of the skylight revamp. Give them a call!