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 at Bull Construction & Roofing 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 855-816-6748 or fill out the form to start your quote today.

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  • Craig Muir
    Installing skylights can be a difficult undertaking. Depending on the slope of your roof and the depth of your house, the lightwells might rise to significant heights above your top floor. Our 2-story house was 36’ deep with an 8/12 roof pitch. For an ideal installation (smooth, reflective lightwell walls), this means using 4’ x 12’ sheetrock panels. For two 2’ x 4’ skylights, you need nearly 270 sq ft of new “wall” – in your attic – and all of it must be insulated consistently (in our case R-30). 270 sqft is the equivalent of an 8’ high wall 34’ long. The level of effort involved and the associated logistics (working up to 20' above the top floor) is almost inconceivable. We asked Velux for certified installers in our area (Reston-Herndon-Sterling) and they gave us 3 names. We were most impressed with Bull Construction (Reston). The owners of the company – Elmar & Shawn – visited our jobsite at least once a day and dealt with all of our concerns. The final result could not have been better or more dramatic. Bull Construction was very punctual and easy to deal with. If you’re thinking about installing skylights, take it from us – get the Bull in your corner! Our family and friends inspected our 2 new skylights at Thanksgiving. Our nephew shook his head and said “that company could build the pyramids”. Yep.
  • Thomas Hoban
    My experience with Bull when my skylight malfunctioned during rain (mercifully, light) was simply extraordinary. Way, way out of the norm. Velux referred me to Bull and, even though I called out of hours, Sean was not just available but extraordinarily helpful, holding my hand as we worked through the possible issues carefully and thoroughly. I couldn't possibly have asked for more. The following morning, Diego showed up as early as I could have wished, went through the possibilities with me again, and we worked out the problem. There is simply no question that in the future, it's Bull I'll call -- for anything at all, major or minor. And call right away.
  • Riccardo Lupi
    We are very happy with the Skylight installation performed by Elmar and his crew of professionals. Did an excellent job in a short time . We highly recommend Bull Co. to anyone looking for a solid and reliable Company.