When you choose Northbay Roofing Co for skylight installation, you get more than just a hole in your roof. We treat every skylight as a structural change that demands careful flashing, sealing, and insulation. Our team has installed over 400 skylights across Novato homes since 2005, and we know the local building codes inside out. Step 1: On-site Assessment
We start by inspecting your attic and roof deck. We check for rafters, wiring, or ductwork that might block the ideal skylight location. Then we measure the roof pitch and confirm the best skylight model—fixed, venting, or tubular. This takes about 45 minutes, and we provide a written quote before any work begins. Step 2: Material Selection
We offer three primary skylight brands: Velux, Fakro, and Solatube. Each comes in low-E glass with argon gas fill for energy efficiency. For Novato’s coastal climate, we recommend double-pane tempered glass with a U-factor of 0.30 or lower. Prices range from $800 for a basic fixed skylight to $2,500 for a venting model with remote control. Tubular skylights start at $600. Step 3: Roof Preparation
We cut the opening carefully, framing it with pressure-treated lumber to match your roof’s pitch. Then we install a self-adhering ice and water shield around the curb. All cuts are made from inside the attic to avoid damaging shingles unnecessarily. We use a 4-inch overlap on all flashing layers. Step 4: Flashing and Installation
Our flashing system uses step flashing for asphalt shingle roofs and custom-bent aluminum for tile or metal roofs. We seal every joint with butyl tape and exterior-grade silicone. The skylight is set into a bed of sealant, then screwed into the curb with corrosion-resistant fasteners. We never use caulk alone—that’s a leak waiting to happen. Step 5: Interior Finishing
We drywall and tape the shaft, then install a reflective light tube if needed. We also add a vapor barrier to prevent condensation. Finally, we test the skylight for water infiltration with a hose before we leave. The entire process takes one to two days depending on complexity. Cost Ranges
For a typical Novato home with composition shingles, a single fixed skylight costs $1,200 to $1,800 installed. A venting skylight runs $1,800 to $3,000. Tubular skylights cost $600 to $1,000. We offer financing through Wells Fargo for projects over $1,500. Timeframes
Most installations are complete within 48 hours of start. We schedule work Tuesday through Saturday, and we clean up all debris daily. We also provide a 10-year warranty on labor against leaks. Why It Matters
A properly installed skylight adds value and comfort. But a poor installation causes leaks, heat loss, and rot. That’s why we follow manufacturer specifications to the letter. Every skylight we install meets Novato’s Title 24 energy requirements.
