Skylights and Attic Ventilation in Los Angeles, CA

Every skylight and roof vent is an opening cut into a roof that is otherwise built to shed water. That makes this roofing work first. A skylight that drips and an attic that bakes both come down to how the roof was cut, flashed and vented, so the fix starts on the roof.

Four jobs sit under this heading, and each has its own page. Pick the one that matches what you see.

Skylights and roof ventilation in Los Angeles: four jobs, one roof

What do skylight and roof ventilation services include?

We treat the opening and the roof around it as one job. Scope is written down before work starts, and anything we find along the way is a separate line you can approve or decline. A typical visit covers:

• Checking flashing, curbs and seals at each skylight and vent
• Repairing or replacing a skylight, including a vented or openable unit
• Adding or correcting attic vents so intake and exhaust balance
• Fitting ember-resistant screens or bird blocking where vents need them
• Photographing the attic, deck and light well so you see what we see
• Looking at insulation, since wet or thin insulation shows up in the same attic

Tubular (solar tube) skylights need a smaller opening than a conventional unit. Tell us if one interests you, and we will say whether it is work we take on.

Signs that point to the skylight, and signs that point to the attic

A stain that only appears when it rains, within a couple of feet of a skylight, points at the skylight. Heat or dampness across a whole ceiling points at the attic. The two can overlap, since a leaking skylight soaks insulation and a hot attic ages the skylight's seals.

• Fogging between two panes of glass: the glazing seal has failed.
• A ring-shaped stain around the light well: water is getting past the flashing.
• Upstairs rooms that stay hot after sundown: the attic is holding heat. NOAA's 1991-2020 normals count about 77 days a year at 90°F or hotter in Van Nuys, against about 5 at LAX.
• Rust on nail tips or darkened roof boards: moisture is sitting in the attic.
• Gaps at the eaves, droppings or nesting material: birds or rodents are getting in, and the eaves may need bird blocking.

What happens on a skylight or ventilation visit

The visit is the same whichever page you started on, because the roof and the attic have to be read together.

1. You describe what you see. When it shows up, which room, and what has been tried before.
2. We look inside first. Ceiling, light well and attic framing, for water trails, stains and rot.
3. We go up on the roof. Flashing, curbs, vents and the roofing around them get checked and photographed.
4. You get the options in writing. The estimate names what is repaired, what is replaced and what is left alone.
5. The work gets done. Parts that failed are replaced, not buried under sealant.
6. We check the result. Where conditions allow, water goes on the area to confirm it stays dry.

Should skylights and vents be done with a new roof?

If a roof replacement is already on the calendar, fold the skylight and vent work into it. New roofing is laid up against the flashing, so replacing old skylight flashing and tired vents at the same time costs less than opening a finished roof later. Ask whether your roof replacement estimate lists skylights and vents as separate lines.

On a roof with years left, a targeted repair is often enough. Our roof repair page covers the wider picture, including roof leak repair when you cannot tell whether the water comes from the skylight or the roof.

What affects the cost of skylight and ventilation work?

Size, access and the roof type move the price most. A tile roof takes longer to open and reset than shingle. A two-story house adds staging and carrying. Venting or electric skylights cost more than fixed ones, and a new opening needs framing that a straight swap does not.

Ventilation jobs scale with how many vents change and whether the eaves need clearing. Tile and mixed-material roofs add time, because every opening must be flashed to the roofing around it. Ceiling and drywall finishing inside the house is usually a separate scope, so ask the estimate to say who does it. We price each job in writing after we have seen it. Our guide to skylight replacement cost in Los Angeles walks through the line items.

Do skylights and vents need a permit or follow Title 24?

Rules depend on the address. Swapping a skylight in the same opening is treated differently from cutting a new one, and the City of Los Angeles building department (LADBS) or your local agency decides what applies. Cities run their own departments, and unincorporated areas go through the county.

California's Energy Code, Title 24 Part 6, also touches this work. Skylights generally need a rated label, and some re-roofs trigger cool roof rules, covered on our cool roofing page. In fire-prone areas, vents may need to be ember-resistant, so check your address on CAL FIRE's viewer. If you have an HOA, check its exterior rules before changing a visible skylight.

Why Clear Shield for skylights and attic ventilation in Los Angeles

Google shows Clear Shield at 4.9 from 69 reviews as of November 2026, and reviewers describe the same habits from our Van Nuys jobs. One customer had three skylights replaced even with light showers that morning. Another describes a full water test after a leak repair to confirm everything stayed dry. A third reports hidden problems turned up on inspection, including a poorly placed vent and fascia damage.

We work from Van Nuys across the region. Burbank has a large stock of 1940s and 1950s low-pitch ranch roofs where vent placement matters. Glendale brings Spanish Revival homes that need careful tile work around any opening. In Santa Clarita hot, dry summers punish skylight seals, and in Santa Monica marine air corrodes flashing and fasteners.