Skylight Installation in San Jose, CA
Skylight installation brings natural light into your San Jose home while adding value and visual interest to your roof. The work involves cutting an opening in your roof deck, installing flashing and counter-flashing to keep water out, and securing a skylight frame—fixed or vented—that sits flush with your shingles. Done right, a skylight transforms a dark room and handles San Jose's intense summer sun without leaking during winter rain storms.
Call 6504145505A skylight installation starts with the roof deck opening. We cut through your sheathing and shingles carefully, then install step flashing around the opening to direct water down and away from the frame. The counter-flashing overlaps the step flashing and tucks under your shingles—this overlap is what stops water from wicking into your home. We seal all joints with waterproof sealant and ensure the underlayment is continuous around the opening to meet building code.
Material choice matters. Fixed skylights (like VELUX models) work well for rooms where you want light but no ventilation. Vented skylights open to let hot air escape—useful in San Jose's dry summers when you're managing interior heat. Some homeowners choose sun tunnels for smaller spaces or difficult roof pitches. Insulation around the frame prevents thermal bridging, which keeps your home comfortable year-round and reduces condensation in winter.
Cost depends on skylight size, your roof pitch, and whether you're replacing an old skylight or cutting a new opening. A standard residential installation typically runs 4–6 hours. If your roof deck is compromised or your sheathing shows rot, the job takes longer and costs more. We inspect the area first and give you a line-item estimate before we start.
What's Included
Our Skylight Installation Process
Custom-specified, manufacturer-certified, warranty-registered
Design Consultation
On-site evaluation of placement, structural considerations, and integration with existing roof system. Manufacturer specifications reviewed.
Material Specification
Product selection matched to your building and San Jose climate. Manufacturer-certified installer crews assigned.
Certified Install
Flashing, sealing, and termination details installed per manufacturer requirements for warranty validity.
Warranty Registration
Manufacturer warranty registered in your name. Our workmanship backed by 25 warranty. Final documentation delivered.
Signs You Need Skylight Installation
Signs You Need Skylight Installation or Replacement
- Dark interior rooms that would benefit from natural light and reduced daytime energy use
- Existing skylight is leaking during San Jose's winter rain storms or showing water stains on the ceiling
- Skylight frame is cracked, warped, or shows condensation between the panes
- Flashing around an old skylight is corroded, rusted, or pulling away from the roof
- Roof deck around the skylight shows rot, decay, or soft spots when walked on
- You want ventilation to manage heat buildup during San Jose's dry, intense summers
- Existing skylight is outdated and lacks insulation or UV protection
- Shingles around the skylight are missing, curling, or show granule loss
Skylight Installation — Frequently Asked Questions
How long does skylight installation take?
Most skylight installation installations take 1–3 days depending on quantity, flashing complexity, and existing roof condition. We confirm scope and timeline before scheduling.
What warranty applies?
Manufacturer warranty applies to the product itself (typically 10–20 years on the unit). Our workmanship warranty is 25 on installation, flashing, and sealing.
Will this affect my existing roof warranty?
Not when installed correctly. We follow your roof manufacturer's specifications for penetrations so no existing warranty is voided. Documentation provided.
Are you certified by the manufacturer?
Yes. We hold installer certifications from leading specialty manufacturers, which is required for warranty validity on most products.
Do you handle the permits?
Yes. Permit application, scheduling of inspections, and final sign-off are all handled by our team. You don't need to deal with city offices.
Don't just take our word for it — hear from our satisfied customers.
"We had a dark hallway in our Willow Glen home and wanted natural light without sacrificing privacy. The crew installed a fixed skylight, and the difference is incredible. The flashing work was meticulous—no leaks, even during last winter's heavy rains. Highly recommend." — Maria R.
"Our old skylight in East Side was leaking and rotting the sheathing underneath. San Jose Roof Repair replaced it completely, fixed the damaged deck, and installed new counter-flashing. The installation was clean and professional. We got a free estimate and no surprises on the bill." — James T.
"We added a vented skylight to our kitchen in Almaden Valley. The crew explained building code requirements and showed us the step flashing detail before they started. Two days later, we had a beautiful skylight that opens for ventilation and handles our hot summers perfectly." — Patricia M.
Ready to get started? Call us today at 6504145505 for a free estimate.
Free estimates · Licensed & Insured certified · 25-year warranty
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