Additional considerations such as permits, glazing material, and roof type will impact the cost of your skylight project. Let’s break these down.
Popular skylight brands include Sun-Tek, Velux, and Fakro. Each company has different product availability, customization options, and warranty coverage, so be sure to compare each brand to find the right skylight for your home. Traditional window manufacturers will sometimes offer skylight options, but those choices are limited.
The transparent part of a skylight is typically made from acrylic or glass. The material you select will affect your total cost. Acrylic is the least expensive option since plastic is cheaper than glass. You’ll find acrylic glazing in more complicated skylight shapes, such as pyramids or domes.
Acrylic is more impact-resistant than glass but gets scratched or discolored over time. Glass is a more popular choice because it resists discoloration. Homeowners can choose tempered glass for improved durability and better protection if the glass is shattered. Double-paned glass offers better insulation against external temperatures and helps keep your home comfortable.
Here are the average costs of skylight glazing materials:
- Acrylic: $150–$1,000
- Double-paned glass: $300–$3,500
- Tempered glass: $200–$1,500
Skylight installation requires extensive changes to your home’s interior and exterior, so you may need a permit. You may also need electrical or plumbing work permits, depending on your selected skylight. Permit costs vary by location but may cost up to $500 or more. Your roofing or window installer will provide more information about any necessary permits and should handle the paperwork for you.
Pitched roofs work best for skylight installations. Their angle helps with rain runoff and reduces the chance of leaks. Although flat-roof installations aren’t optimal, they are possible. They’ll require additional labor and installation protections to prevent water from pooling on the window’s surface. Flat-roof skylights incorporate sloped designs and glazing to assist with water draining. Due to their specialized design and additional installation precautions, flat-roof skylights cost more than pitched-roof varieties.
Add-ons and upgrades could improve your skylight’s performance and protect your home from external factors. Consider adding a low-e coating to increase energy efficiency and improve insulation from the solar heat. Adding electric shades or glass tinting will regulate glare and reduce the amount of sun rays entering the room. If you’re installing a ventilating skylight, consider adding an insect screen to keep bugs out.
Most skylights are curb-mounted or deck-mounted. Curb-mounted skylights are mounted over a frame, while deck-mounted skylights sit flush with your roofline. Curb-mounting is more affordable but makes your skylight more visible from the ground. Deck-mounting is a better option if you prefer a sleeker look, but it’s more expensive. Curb-mounted skylights range from $150–$1,500, while deck-mounting costs $1,500–$2,500.