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 M&M Skylights Nashua 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 978-961-6453 or fill out the form to start your quote today.

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  • Tom Spine
    I had an excellent experience with M&M Skylights all around for my three replacement Velux skylights - from initial home visit for the estimate, to scheduling, to the installation crew. Also appreciated very quick and responsive txt messaging throughout.
  • Deb
    I was very satisfied with M&M Skylights. They arrived on time and did a fantastic job installing the beautiful skylights. They gave us instructions on how to work the remote control blinds. Their work was professional and they respected our home, inside and out. You’re in good hands if you choose M&M!
  • Bonnie Perry
    We are beyond happy with M & M Skylights! We first met with Kevin and he definitely knows his stuff. He was the reason we decided to go with M & M. He was so easy to talk to and answered all of our questions. The installation went really well and the guys did an awesome job! Dan, Matt, Sam and Barry were all very polite, professional and courteous. They were very knowledgeable and it’s obvious they take a lot of pride in the job they do. Thank you all for making the process so easy and the finished product look so amazing! We will certainly be recommending M & M Skylights!