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 207-672-2031 or fill out the form to start your quote today.

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  • Paul Powers
    Fantastic Experience with M&M Skylights! We recently had skylights installed by M&M, and the entire experience was outstanding from start to finish. From the initial consultation with their sales team to the final touches of the installation, every step was handled with professionalism and care. The sales team was knowledgeable and took the time to answer all our questions, helping us choose the perfect skylights for our needs. The installation crew was equally impressive—punctual, courteous, and skilled. They worked efficiently and left everything clean and tidy when they were done. The new skylights have completely transformed our home, bringing in so much natural light and enhancing the overall atmosphere. We couldn’t be happier with the result! If you’re considering skylights, we highly recommend M&M. Their top-notch service and expertise truly set them apart!
  • Bill Hyman
    I hired M&M Skylights to replace some blinds on my existing Velux skylights. They were very responsive to my questions, and brought enough employees to the house to do the job quickly. The new blinds are great and I had a great experience working with them.
  • David Herbein
    They are truly VELUX skylight experts! From the initial visit and estimate right through the installation, they were professional and unstumpable no matter how many questions my wife and I asked. Communications were excellent all during the process. The work crew was on time and ready to work; topnotch workmanship on two replacement windows and two window shade backfits; they left the three worksites cleaner than when they started. If you have skylights needs, this is the place to get it done!