ROOFING
Skylight Installation Cost: In 2026
Estimate skylight installation cost — with the free window calculator.
A skylight floods a room with light and makes a dark space feel twice as big. The unit is cheap; the roof work is the real cost. Here's the 2026 number.
THE SHORT ANSWER
The short answer
Skylight installation runs $1,000–$3,000 in 2026 (average $1,800–$1,900). The unit runs $300–$1,500; labor and flashing run $700–$1,500. Replacements run $800–$2,200. Solar or venting units cost more.
What it costs
A fixed skylight runs $1,000–$2,000 installed. A venting or solar model runs $1,500–$3,000+. The unit itself runs $300–$1,500; labor including flashing runs $700–$1,500. Replacing an existing skylight runs $800–$2,200.
- Fixed: $1,000–$2,000
- Venting/solar: $1,500–$3,000+
- Unit: $300–$1,500
- Labor + flashing: $700–$1,500
The leak risk
Most skylight leaks are flashing failures, not skylight failures. A proper curb and step flashing cost more but last. On shingle roofs, the flashing must integrate with the roof layers — that's the part DIY installs get wrong.
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