Prices estimated using the NailThePrice Local Cost Model™ — national averages adjusted for Seattle's labor rates, cost of living, and material pricing.
The cost to install skylights in Seattle ranges from $1,220 to $4,890, with most homeowners paying around $2,690. Your actual cost depends on several factors specific to your home and the Seattle-Tacoma market.
Fixed skylights are cheapest ($200–$600), vented models that open for airflow cost $400–$1,200, and tubular skylights for small spaces cost $200–$500.
Skylights on low-pitch roofs need extra flashing care to prevent water pooling. Very steep roofs require more complex installation and safety measures.
A proper step-and-counter flashing kit is critical for waterproofing — quality kits from the skylight manufacturer cost $50–$150 and are essential for a leak-free install.
If the roof and ceiling aren't the same plane, a light shaft must be framed and drywalled to connect them, adding $500–$1,500 per skylight.
Multiple skylights reduce per-unit installation cost since the roofer is already set up, but each still requires its own shaft, flashing, and finishing.
The Pacific Northwest has moderate to high labor costs. Rain affects exterior scheduling October through April. Green building practices are common and many contractors specialize in energy-efficient work.
Budget $101–$338 for permits and inspections. Your contractor typically handles the permit process, but confirm this upfront.
Most roofing materials perform well in mild climates. Longer installation seasons mean more contractor availability and potentially better pricing year-round.
While possible for experienced homeowners, skylight installation involves significant complexity. In Seattle, you may still need a licensed pro for permits and inspections. DIY could save $1,127–$1,449 in labor.
Compare prices from licensed, insured contractors in Seattle-Tacoma.
Get Free Quotes from Seattle Pros →The average cost to install skylights in Seattle ranges from $1,220 to $4,890, with most homeowners paying around $2,690. This estimate includes both labor ($1,610) and materials ($1,080). Costs in Seattle are higher than the national average due to local cost of living and labor market conditions. Get multiple quotes from licensed Seattle contractors to lock in the best price.
Yes, Seattle typically requires a permit for skylight installation. Budget $101–$338 for permit fees and expect 1–2 weeks for approval. Your contractor typically handles the permit application. Working without a required permit can void warranties and create problems when selling your home.
Most skylight installation projects in Seattle take 1–2 days to complete. The timeline depends on project scope, contractor availability in the Seattle-Tacoma metro area, and seasonal demand. Scheduling during Seattle's off-peak season (typically winter months) can reduce wait times and may lower costs.
Modern skylights with proper flashing and installation rarely leak. Most skylight leaks come from improper installation or deteriorated flashing, not the skylight itself. Using a certified installer and the manufacturer's flashing kit virtually eliminates leak risk. Quality skylights carry 10–20 year warranties.
Skylights reduce the need for electric lighting during the day, but they can also add heat gain in summer and heat loss in winter. Choose ENERGY STAR-rated skylights with Low-E glass. Vented skylights also provide natural ventilation, reducing AC needs.