Skylight Leak Repair in Downtown Fullerton from $350. Forty-year-old curbs, and the sealant that was never meant to last this long. Free inspection and a written quote.
Downtown the equivalent detail is a rooflight or hatch on a low-slope roof behind a parapet, and those fail at the curb upstand in the same way a pitched-roof skylight fails at the curb. The difference is that water has nowhere to run, so it sits against the upstand rather than passing it.
Orange County tract housing from the 1960s through the 1980s is full of original skylights, and they are the single most common leak point we find in Fullerton. The unit itself is usually not the problem. The curb it sits on, the flashing around that curb, and the sealant bedding it are.



Re-flashing and re-bedding a skylight curb runs $350 to $1,200 depending on access and what the flashing is bedded into. Replacing the unit with a modern deck-mounted skylight and an integral flashing kit starts around $900 fitted and is frequently the better value on a forty-year-old curb. Downtown prices off the street as much as the roof. Restricted loading, nowhere to stage, a dumpster that needs arranging rather than assuming, and work sequenced around whatever is trading below. A quote silent on all of that will move once work starts.
A sound curb, sound framing and one failed face. That is a contained repair and it should be priced as one.
A site-built curb on a 1960s-80s tract roof, where another bead of sealant buys a couple of seasons and an integral kit buys decades.
Rotten opening framing, a shaft that has to be re-lined, or a tile roof where the surrounding field has to come up to reach the flashing.
Downtown is a logistics problem before it is a roofing one. Curbside loading is restricted, there is rarely anywhere to put a dumpster, and work above an occupied business has to be sequenced around its opening hours. Low slope behind parapets is the common covering, and the parapet coping is where it usually lets go.
Downtown Fullerton holds the city's oldest building stock, and almost every job there is shaped by access and loading before anything else.
Worth knowing before you start ringing round, and worth factoring into anything with a deadline on it.
Roofs here fail quietly through a dry summer -- ultraviolet light and heat working on the covering, sealant hardening around every skylight curb, laps loosening -- then a Santa Ana lifts whatever was already loose, and the first serious rain finds all of it at once. Every roofer in north Orange County takes those calls on the same three nights.
Downtown holds the oldest building stock in Fullerton, and most of what leaks there is low slope behind a parapet rather than a pitched roof.
Concrete tile and forty-year-old skylights.
Above the golf course. Wind finds the upslope face.
Big lots, old trees, and litter in every valley.
The newest stock here. Usually one failed detail.
1920s to 1970s on one street. Check the deck.
Backs onto the park. Debris and brush exposure.
A different city, with its own building department.
The questions this job turns on, answered up front.
Often not. The glass and the frame usually outlast the curb they sit on, and on a 1960s-80s Fullerton roof it is almost always the curb flashing and the sealant that failed. We price re-flashing and replacement side by side so you can see the difference.
A great deal. Water at the top corner of the shaft points at the head flashing; down one inside face points at that side of the curb; at the bottom edge often means the sill. It is one of the few roof leaks that can be narrowed down before anyone goes up.
Because most online figures are national. Asphalt shingle is about $8.50 per square foot across this market against roughly $4 nationally. A quote that matches a national average is usually missing something -- most often the tear-off or the sheathing allowance.
A repair usually does not; a re-roof does. In this city it comes from the City of Fullerton, and in Brea from the City of Brea -- both are their own incorporated cities and neither goes through LADBS. We pull it, and the inspection that comes with it is your independent check that the specification was followed.
One that has not reached the structure. If the stain is small, dry between rains and the sheathing above it is still sound, that is a minor leak and a few hundred dollars. Once the decking has softened or the insulation is wet, it stops being minor regardless of how small the stain looks.
Free inspection, and a written quote against a written scope. Every slope photographed before and after - the set is yours.