Skylight repair
We inspect the skylight and nearby roofing to find the source of moisture before recommending a repair.
Office hours: Mon–Fri 7:00 AM – 5:00 PM · Sat by appointment · Sun closed.
No same-day or emergency service; scheduled weekdays from Brentwood.
Water coming in now? Stay off the roof and keep clear of sagging ceilings. Don't touch wet electrical equipment. If anyone is in immediate danger, leave the affected area and call your local fire department instead of waiting for an estimate.
When you need it
Signs it is time
- Stains appear around the corners of the interior light shaft.
- The unit drips during wind-driven rain.
- Fogging or deposits remain between the panes.
- An acrylic dome is cracked, yellowed or brittle.
- Old caulk around the frame has hardened or peeled.
- The curb flashing is rusty, lifted or covered in roofing cement.
What we do
How we do the work
A wet patch beside a skylight can have several causes. Water may be getting past the flashing, collecting in a blocked drainage channel or entering further up the roof. Cloudiness between the panes points to a different problem from rain dripping around the frame. We check the unit and the roof around it before deciding what to change. If the glass and frame are sound, repairing the flashing may be enough. If the unit or its supporting curb has deteriorated, we'll explain the replacement work. Covering the outside with another layer of sealant isn't a substitute for finding how the water gets in.
Inspect the whole opening
We check the frame, flashing, roof above and light shaft inside.
Check the drainage channels
Small outlets around the unit are examined for blockages.
Trace the leak
Water testing helps locate the source while the interior is observed.
Explain what needs work
We distinguish a flashing repair from a problem with the unit itself.
Repair the roof connection
We fit the specified flashing, underlayment and surrounding roofing.
Address the inside
The agreed scope can include damaged insulation, drywall and trim.
Test the repaired area
We check for water entry after the work is complete.
Up close
Where a skylight gets sealed

Options
What you can choose
Flashing repair
When the unit is sound but its roof connection has failed, we remove the affected flashing and fit the specified replacement into the surrounding covering.
Sealant and weep hole service
Blocked drainage openings or worn perimeter seals may need service on an otherwise usable unit. We check those details before deciding whether a larger repair is necessary.
Replacement unit
Failed glass seals, a deteriorated acrylic dome or a damaged supporting curb may call for replacement work. The scope needs to include the surrounding flashing, not just the visible unit.
How long it takes
How long it takes, and what is covered
Diagnosis comes first and the repair follows once the source is confirmed. The written estimate carries the dates.
- 10 yearsWorkmanship on new installs
- one to five years depending on scopeOn repairs, by scope
- 10 years leak-freeVELUX skylights
Questions
Questions about skylight repair
Does a leak mean I need a new skylight?
Not necessarily. With sound glass and an intact frame, attention turns to the flashing and underlayment around the unit. We trace the water path before deciding whether the unit itself needs replacing. A flashing repair may be enough, while deteriorated glass seals or a damaged frame can call for different work. The recommendation should follow what the inspection finds, rather than treat every drip as a replacement job.
It started leaking after the roof was done. Why?
The flashing around a skylight has to work with the new roofing. Reused or poorly fitted metal, or roofing cement spread over the joints, can leave a path for rain as materials move with temperature changes. We inspect the connection to see what happened. If the flashing is the cause, the repair needs to address how it fits into the roof rather than add another surface coating.
There is water inside but no leak. What is that?
Condensation is one possibility, especially above a kitchen or bathroom. Warm, damp indoor air can meet cold glass and leave water that runs down the shaft. Moisture on cold, clear mornings suggests something different from dripping that begins during rain, though the timing alone isn't a diagnosis. We check the pattern and the unit, then discuss whether airflow or insulated glass would help.
Related
Other skylights problems
Service
Skylight installation
A new or replacement VELUX skylight, with the surrounding roof work and agreed interior finish included.
Guide
Why skylights leak after a re-roof
A leak that appears after roof replacement needs an inspection of the flashing, the supporting curb and the surrounding roof.
Overview
Skylights
VELUX skylight installation, replacement and repairs, including the flashing around the opening.
Free estimate
Find out what it costs
Tell us what's happening at your property, one step at a time. We'll review your request during business hours and arrange a free inspection.
What happens after you send it
- We call during business hours to set a time.
- A free visit. We measure on site and nothing is signed at the door.
- The proposed work and the price, in writing.
- (925) 555-0100Phone
- Mon–Fri 7:00 AM – 5:00 PMHours
Sat by appointment · Sun closed
100 Example Road, Brentwood, CA 94513 · office@example-roofing.demo
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Thanks. We will call during business hours to set up the inspection.
That did not send. Call (925) 555-0100 instead and we will take the details over the phone.