Skylight Installation in San Antonio

Skylight installation and replacement in San Antonio

A skylight project involves more than choosing a window. The roof slope, roofing material, opening, flashing, and interior ceiling all affect the right approach. Ideal Precision Roofing & Exteriors can assess the roof and discuss the installation or replacement work needed for your property.

New opening or replacement unit?

Replacing an existing skylight starts with its dimensions, mounting style, condition, and surrounding roofing. A new opening also requires planning for framing, the route through the attic, and interior finishing. Ask for a scope that clearly identifies who handles each part, including any electrical or structural work.

Fixed skylights provide daylight. Venting models can open for airflow, while tubular daylighting products route light through a smaller opening. Suitability and product availability should be confirmed for your roof before selecting a model.

Why roof pitch and flashing matter

The unit and flashing must be suitable for the roof covering and slope. Manufacturer details vary between products and mounting methods. For example, VELUX explains that its flashing systems shed water without depending on sealant alone. A bead of caulk is not a substitute for a compatible installation detail.

During a roof replacement, ask whether an older skylight should be replaced while surrounding materials are already being removed. Keep model numbers and existing warranty paperwork available for the assessment.

Is it a skylight leak or condensation?

Note whether moisture appears during rain, after wind-driven rain, or during dry weather. Water near a skylight can come from the unit, its flashing, surrounding roofing, or indoor condensation. These clues help focus an inspection but do not confirm the cause by themselves.

Fog between panes may indicate a glazing issue. Stains around the opening can have a different source. A roof inspection can help establish whether the next step is roofing work, unit replacement, or further indoor moisture investigation.

What should a skylight estimate cover?

• Unit size, mounting type, glazing, and operating features.
• Roof access and removal or replacement of surrounding materials.
• Flashing and underlayment compatible with the selected product.
• Any changes to the opening, ceiling shaft, trim, or paint.
• Responsibility for permits, specialist work, and cleanup.
• Separate product and installation warranty terms.

Will a skylight reduce my energy bill?

Daylight, heat gain, orientation, shading, and how the room is used all matter. Compare the selected product’s performance information rather than assuming a guaranteed saving.

Can every leaking skylight be repaired?

No. A flashing defect may be repairable, while a damaged unit, obsolete parts, or deterioration around the opening may favor replacement. Ask for the reason behind the recommendation and the limits of any repair.

Request an inspection and estimate or call (210) 485-1553. Tell us your property address and the issue so we can confirm service availability and scheduling.

What San Antonio weather does to skylights

A skylight sits in the most exposed part of the house. National Weather Service normals for San Antonio put the average August high at 96 degrees, with about 122 days a year at 90 degrees or hotter. Years of that heat and UV dry out gaskets and sealant, and older acrylic domes can yellow, craze and turn brittle.

Hail is the other test. The April 12, 2016 storm documented by the National Weather Service produced hail up to 4.5 inches north of downtown and an estimated $1.36 billion in damage. An aged plastic dome is more likely to crack in a storm like that, and dented flashing can let water in even when the glazing survives. After hail, we inspect skylights along with the rest of the roof and document damage with photos and a written estimate you can share with your insurance company.

Signs a skylight needs attention

• Fogging or moisture between the panes of a glass unit, which points to a failed seal
• A yellowed, cloudy or cracked plastic dome
• Rusted, lifted or dented flashing around the frame
• Cracked or missing sealant where the frame meets the curb or roof
• A venting skylight that no longer closes tightly

Skylight types and glazing options

• Fixed skylights bring in light only. With no moving parts, they suit high or hard-to-reach ceilings.
• Venting skylights open to release hot, humid air from kitchens and bathrooms. Manual, electric and solar-powered versions are available, and some powered models include a rain sensor that closes the unit when rain starts.
• Tubular skylights, sometimes called sun tunnels, use a small rooftop dome, commonly 10 or 14 inches across, and a reflective tube to light hallways, closets and interior bathrooms where a full skylight and light shaft won’t fit.
• Deck-mounted or curb-mounted. Deck-mounted units fasten to the roof deck and use a flashing kit matched to the unit and the roofing. Curb-mounted units sit on a raised frame. On roofs flatter than 3:12, the International Residential Code calls for unit skylights to be mounted on a curb at least 4 inches above the roof unless the manufacturer’s instructions specify otherwise.

Glass units are typically double-paned, and laminated glass uses bonded layers that hold the glass together if it breaks. Plastic domes cost less but age faster in strong sun. Whatever the unit, check its NFRC label: a lower Solar Heat Gain Coefficient means less of the sun’s heat comes through, which matters on south- and west-facing slopes.

How we install or replace a skylight

1. Inspect the roof, and for a new opening, the attic framing, so the unit fits between rafters or is framed correctly around them.
2. Photograph existing conditions inside and out.
3. Provide a written estimate that names the unit, the flashing kit and any interior finishing included.
4. Pull a permit where one is required.
5. Remove roofing around the opening, set the unit, and install underlayment and flashing to the manufacturer’s instructions and local code.
6. Reinstall roofing, clean up, and sweep the yard and driveway for nails.
7. Walk through the finished work with you.

Skylight service in your area

We provide skylight installation and replacement across San Antonio and nearby cities, including Alamo Heights, Olmos Park, Terrell Hills, Castle Hills, Leon Valley and Live Oak. See all of our service areas.

Related roofing services

• Metal flashing for chimneys, walls and other roof penetrations
• Roof repairs and maintenance when the problem is around the skylight rather than in it
• Roof replacements that include new skylights and flashing
• Free roof inspection and estimate to see what your roof and skylights need

Skylight installation FAQ

Should I replace my skylights when I replace my roof?

Usually, yes. VELUX, a major skylight manufacturer, recommends replacing skylights during a roof replacement, because tear-off and reflashing are hard on an existing unit. Doing both at once means the new skylight is flashed one time, into new underlayment and roofing.

Can a skylight be removed and the opening closed?

Yes. We remove the unit, frame and deck the opening, then install underlayment and roofing that tie into the surrounding slope so the patch sheds water like the rest of the roof. The ceiling opening inside also has to be closed, and the estimate spells out how that part is handled.

How long does skylight installation take?

Swapping a unit into an existing opening is often a one-day job. A new opening that needs framing and an interior light shaft takes longer, and weather or hidden damage around an old unit can extend the schedule. We’ll go over the expected timeline with your estimate.

Does a new skylight need a permit?

It depends on the city and the scope of work. Cutting a new opening changes the roof framing, and many jurisdictions require a permit for that kind of work. We check the requirements for your address and pull a permit where one is required.

Request your free inspection and estimate or call (210) 485-1553.