Who Installs Skylights? Your Guide to Skylight Installers

Hire a dedicated skylight installer with InstallationMasters certification

Wooden ceiling with skylight
Photo: Richard Jacyno / iStock Photography / Getty Images Plus / Getty Images
Wooden ceiling with skylight
Photo: Richard Jacyno / iStock Photography / Getty Images Plus / Getty Images
Highlights
  • Installing a skylight requires precise roof cutting, sealing, flashing, and interior finish work to prevent leaks and water damage.

  • Certified skylight installers or window pros specializing in skylights offer the right skills; look for FGIA InstallationMasters certification.

  • Certified specialists may cost more, but their expertise supports better performance, fewer issues, and lasting peace of mind.

  • Professional installation helps preserve manufacturer warranties and can limit early repairs, replacements, and moisture-related interior fixes.

  • Avoid DIY; skylights are heavy and improper sealing is the most common cause of roof leaks and costly water damage.

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This article was created using automation technology and thoroughly fact-checked and edited by HomeAdvisor Editor Ryan Noonan.

If you are weighing who installs skylights, hire a dedicated skylight installer or a window professional who specializes in skylights. Look for InstallationMasters certification from the Fenestration & Glazing Industry Alliance to ensure proper sealing and lower leak risk.

This hiring guide explains your options, why specialization matters, and how pros complete a leak-resistant skylight installation.

Benefits of Hiring a Dedicated Skylight Installer for Skylight Installation

Hiring a dedicated skylight installer delivers proper installation and sealing that lowers the risk of leaks and costly water damage. Specialists provide better guidance on skylight selection and can help maintain manufacturer warranty coverage, especially when certified. Above all, working with a pro provides peace of mind that your skylight will perform for years without issues.

  • Specialized sealing and flashing that mitigate leak risk

  • Proven experience with skylight-specific installation steps

  • Guidance on skylight type for appearance and efficiency

  • Certification that supports manufacturer warranty coverage

  • Lower chance of water damage and interior repairs

  • Correct use of ice and water shield on the roof

  • Proper fitment to roof decking and interior finishing

  • Ability to install interior trim and optional shades

  • Reduced likelihood of early repair or replacement

Can I Hire a Window Contractor or Roofer for Skylight Installation?

Many standard window contractors can install skylights, but they are less specialized and more likely to make sealing errors that increase leak risk. Some roofing companies also install skylights; only consider a roofer if they have a dedicated, explicitly certified skylight specialist. When a dedicated skylight installer is not available, proceed carefully. Verify skylight-specific certification and confirm recent skylight installation experience to avoid leaks, water damage, and earlier repairs. If you’re not sure where to start, you might want to consider a skylight installer near you to ensure the job is done right the first time.

How Do Skylight Installers Put In Skylights?

Pros confirm placement, cut the interior opening, and drill through the roof corners. They remove shingles, cut the roof deck, set and fit the skylight, and install an ice and water shield. Next, they add exterior flashing for weather protection and finish inside by repairing sheetrock, replacing insulation, and installing trim. Many also offer skylight shades during the same visit.

  1. Mark the ceiling for location and confirm placement with you

  2. Cut the drywall opening and remove insulation

  3. Drill the roof deck at four corners from inside

  4. Remove roof shingles around the marked area

  5. Cut the roof deck opening to the required size

  6. Place the skylight and ensure a proper, secure fit

  7. Install an ice and water shield to redirect moisture

  8. Install exterior flashing to block rain and snow

  9. Repair sheetrock, replace insulation, and install interior trim

  10. Offer optional skylight shades or interior coverings

How Much Does Skylight Installation Cost?

Hiring a window installation professional to install a skylight costs between $1,10 and $2,818 for most homeowners. For a small, fixed-roof window the price is lower, while a large or custom option can exceed $5,000. The skylight’s size, style, and positioning also influence the overall cost. Professional installation is essential for proper placement and sealing. Always request a quote that includes labor, materials, and fees to avoid unexpected expenses.

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The homeowners guide to skylight installations

From average costs to expert advice, get all the answers you need to get your job done.