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 978-403-4866 or fill out the form to start your quote today.

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  • Christos Hatzis
    Crew did an excellent job removing the old skylight and installing the new one. They installed new shingles as needed and redid the trim inside. Very clean and respectful of the property. Shared photos on the shingle job done on the roof. I would highly recommend them for the quality of the product and highly professional installation. Well done!
  • Miguel Gomez-Ibanez
    I would like to commend M&M Skylights for every aspect of their invovement in the replacement of 6 skylights at my home in Weston, MA. M&M was recommended by Velux. Agreeing to their proposal and their execution of the work was a very positive experience. The work was suberb and their crew was efficient, experienced in working in an occupied home, and a pleasure to have on site. As an architect, I am familiar with all aspects of the building process, and M&M gets five stars.
  • Donna Pisari
    The folks at M & M Skylights made the entire process very easy.They are very focused on customer service and satisfaction. I can't say that for many companies today. All the individuals at M & M were very knowledgeable and professional. The workmanship of the installers was excellent. We are very happy with M & M Skylights and highly recommend them.