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 978-812-0071 or fill out the form to start your quote today.

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  • Jeffrey Burditt
    ⭐⭐⭐⭐⭐ I can’t say enough good things about M&M Skylights. From start to finish, the entire experience was excellent. Their workmanship is top-notch and it’s clear they take real pride in the quality of their work. The installation was done carefully and professionally, and the final result looks fantastic. What really stood out was how respectful the crew was of our property. They kept everything clean, organized, and treated our home as if it were their own. It’s rare to find a team that is this skilled while also being so courteous and easy to work with. On top of that, everyone had a great attitude throughout the project. Friendly, professional, and clearly passionate about what they do. If you’re looking for skylight work done right the first time, I highly recommend M&M Skylights. Great people, great work, and a great experience all around! 👏🔧
  • Brian Ernest
    Highly recommend M&M Skylights! Our old skylight was failing, and they made the whole replacement process easy from start to finish. They provided a free estimate, and the person who came out was friendly, knowledgeable, and took the time to clearly explain the product options and the full installation process. We also really appreciated how proactive they were, especially with the weather. When a snowstorm hit, they sent a crew out two days before the install to safely clear snow off our roof so everything could stay on schedule. On installation day, the crew arrived right on time and finished in just a few hours, even faster than the timeline they originally gave us. The new skylight looks great, and we are very happy with the quality of the work and the overall experience. If you need a skylight replaced, this is the company to call!
  • Andy
    Got two Velux skylights & a Sun Tunnel last fall - extremely happy with them. Entire process was smooth and the install/work crews are extremely professional and friendly! I did have a leak with one of my windows (manufacturer defect), but throughout M&M was super responsive, facilitated the warranty claim, and handled the replacement swap out beautifully. Would work with them again without any hesitation!