A skylight transforms a dark room into a bright, open space — but only if it's installed correctly. Skylights are roof penetrations, and roof penetrations are where leaks start. Grand Isle Roofing & Maintenance installs skylights the right way: structural curb framed between rafters, ice-and-water shield on all four sides, step flashing and counter-flashing integrated into the shingle field, and a watertight seal verified from inside the attic.
We install deck-mounted skylights and curb-mounted skylights. Deck-mounted units sit flush against the roof deck and work best for shingle roofs on standard pitch. Curb-mounted units sit on a raised frame and work on flat or low-slope roofs. Both types get the same flashing treatment: ice-and-water shield, step flashing, counter-flashing, and sealant at every transition.
Our Skylight Installation Process
Site Assessment
Our estimator visits your Grand Isle home, inspects the attic framing, and recommends skylight size, type, and placement. We show you product options — fixed, vented, tubular — and provide a detailed written estimate.
Curb Construction
Roof deck opening cut to exact dimensions. Structural curb built between rafters with doubled headers for load transfer. This is the foundation that holds the skylight and carries snow load — it's built to structural standards.
Seal Integration
Full flashing system: ice-and-water shield base layer, step flashing and counter-flashing on all four sides, woven into the existing shingle field. Water flows over the flashing and onto the shingles below — never behind them.
Install & Insulate
Unit installed and sealed. Light shaft insulated and trimmed. We verify the seal from inside the attic — if we can see any daylight at the flashing joints, we re-seal before we leave. Your skylight is watertight and energy-efficient.
What Grand Isle Customers Say
"Responded fast and got the job done right the first time. Crew was polite, professional, and cleaned up everything. Would absolutely hire again."
"Best experience we've ever had with a home service company. On time, on budget, and the results exceeded what we expected. Truly top-notch."
"We called expecting to wait days, but they were here the same afternoon. Fair pricing, quality work, and they kept us informed every step of the way."
Why Choose Grand Isle Roofing & Maintenance for Skylight Installation?
Leak-Free Guarantee
Every skylight gets ice-and-water shield, step flashing on all four sides, counter-flashing, and sealant at every transition. Verified from inside the attic before we leave. If it leaks, we fix it free.
Code Compliant
Every skylight installation meets LA building code for structural framing, energy performance, and egress requirements. Permits pulled when required.
Structural Curb Framing
We frame a proper structural curb between your rafters with doubled headers. No flimsy brackets or foam shims. The curb carries the skylight load and provides a solid base for the flashing system.
Roofer-Installed, Not Handyman
Grand Isle Roofing & Maintenance is a roofing contractor, not a general handyman. Skylights are roof penetrations — they require roofing expertise, proper flashing materials, and waterproofing knowledge. That's what we do every day.