Skylight Leak Repair in Oklahoma
The straight answer: most skylight leaks are not the skylight — they are the flashing and sealant around it. In Oklahoma's hail, wind-driven rain, and 100-degree summer heat, the metal flashing, rubber gaskets, and sealant joints fail years before the glass does. Most leaks are repairable for a few hundred dollars if caught early; letting them run can rot the decking and turn a $400 repair into a $2,000+ replacement plus interior damage. Here's what fails, what it costs, and when to replace instead of repair.
Why Skylights Leak in Oklahoma — Common Failure Points
Before any repair quote, a contractor should pinpoint where the water is entering — not just slather sealant on the top of the unit. These are the failure points we find most often on Tulsa-area roofs:
- Flashing Failure (the #1 cause)Step flashing around a skylight curb must interweave with the shingle courses above and below it. When it's installed with wrong laps, driven by wind, or corroded after years of hail strikes, water slips behind it. Head flashing and a back dam (cricket) above the unit stop water running down the slope from dumping into the top edge — when they're missing, the skylight leaks on every hard rain.
- Dried-Out Sealant & GasketsSkylights are sealed at the factory, but Oklahoma's UV and heat cycle attacks the rubber gaskets and urethane seals. After 8–12 years they shrink and crack, and wind-driven rain — which Oklahoma gets plenty of — finds the gaps.
- Condensation & Interior MoistureNot every "leak" is a leak. On cold mornings, condensation on single-glazed or failed-seal units drips down the curb and stains the ceiling. It's often mistaken for a roof leak — and a good inspection will tell the difference before you pay for flashing work you don't need.
- Wind-Driven RainOklahoma thunderstorms push water uphill under shingle edges and flashing laps that would pass a vertical rain test. Units installed to the bare minimum of code — no cricket, short head flashing — fail first under horizontal rain.
- Hail DamageHail can crack the glass (a visible, often insurance-covered failure) or, more subtly, dent the flashing and break the seal between panes, causing fogging. The Tulsa metro is prime hail territory — see our Oklahoma hail damage data.
- Age & Rotted CurbA wooden curb that's been wet for years rots from the inside out. By the time it's visible from inside, the structural frame may need replacement — one of the main reasons an old skylight gets replaced rather than repaired.
Key insight: a leak that shows up around the skylight's bottom edge on the ceiling is often water that entered higher up the slope and ran down the roof deck before dripping. That's why patching from the inside never works — the actual entry point is usually several feet above the stain. Book a free inspection and we'll trace it from the roof, not guess from the ceiling.
Flashing: The Part That Actually Leaks
Flashing is the metal that bridges the gap between the skylight unit and the roof surface, and it's a system, not a single piece:
Step Flashing
L-shaped metal pieces woven into each shingle course along the sides of the curb. Each piece must overlap the one below it so water sheds outward. Wrong laps or missing pieces = side leaks. This is the most common repair we perform on leaking skylights.
Head Flashing & Cricket
The head flashing caps the top edge, and a cricket — a small peaked diverter behind the unit — pushes roof runoff around the skylight instead of into it. Skylights installed without a cricket on a sloped roof will leak at the top edge, period.
Counter Flashing & Sealants
Counter flashing covers the joint between the skylight frame and the step flashing, sealed with urethane. It's the sacrificial layer — it takes the UV and weather so the metal doesn't have to, and it's the first thing to need re-sealing.
Here's the part homeowners hate hearing: flashing repair is not a surface job. Doing it right means removing the shingles around the skylight, replacing or re-lapping the flashing, and reinstalling new shingles — which is why a proper flashing repair runs more than a tube of caulk, and why a $40 DIY sealant job on top of the frame rarely survives an Oklahoma storm season. That's also why flashing work is best bundled with roof repair while the shingles around the unit are already being worked.
Curb Mount vs Deck Mount: Know What You Have
The mounting style determines how the skylight is flashed, how it's repaired, and how much replacement costs. If you're getting quotes, make sure the contractor identifies which one you have:
| Feature | Curb Mount | Deck Mount (Low-Profile) |
|---|---|---|
| What it is | Sits on a raised wooden or metal curb, usually 4–8 inches tall, built into the roof slope. | Sits nearly flush with the roof deck; the glass itself is the weather surface. |
| Where it's used | The standard for sloped asphalt shingle roofs — the most common setup across Oklahoma. | Common on low-slope roofs, metal roofs, and modern flat-looking designs. |
| Flashing & leaks | More flashing surface = more potential failure points, but each piece is serviceable and replaceable. | Less exposed flashing, but the seal is the system — when it fails, the whole unit typically has to come out. |
| Replacement cost | Unit swaps out on the existing curb if the curb is sound — often the cheaper path. | Requires removing surrounding shingles/panels; more roof work around the unit, higher labor. |
| Look | Classic raised profile, visible from the ground. | Sleek, near-invisible from the street. |
Rule of thumb: on a sloped shingle roof, a curb-mount skylight with properly interwoven step flashing and a cricket is the proven, repairable setup. If your skylight is deck-mount on a sloped roof and it's leaking, replacement — not re-sealing — is usually the honest recommendation, because there's no curb to tie the new flashing into.
2026 Skylight Repair & Replacement Costs in Oklahoma
These are the ranges we see holding up across Tulsa, Broken Arrow, Owasso, Bixby, Jenks, and the surrounding Oklahoma market — installed, turnkey pricing including materials and labor:
Re-Seal / Gasket Repair
Dried sealant, cracked gasket, or counter-flashing reseal on a unit that's otherwise sound. Fast fix — right call only when the flashing metal itself is still in good shape.
Flashing Replacement
Remove shingles around the unit, replace/lap step flashing, add or rebuild head flashing or cricket, reinstall shingles. This fixes most real skylight leaks.
Unit Replacement
Fixed curb-mount units run $800–2,000 installed; vented, solar-powered, or low-profile deck-mount units run $1,200–2,800. Bundle with a reroof and the price drops.
Worked example: a homeowner with a 15-year-old curb-mount skylight leaking at the top edge. If the leak is dried sealant with sound flashing, the honest fix is a re-seal at around $300–$500. If the inspection finds no cricket and water running under the head flashing, the fix is flashing work around $700–$1,100. If the curb is rotted or the glass is fogged, replacement lands at $1,200–$2,000. The inspection is free — the guess isn't.
Storm Damage? Insurance May Cover It
Hail-cracked glass or wind-torn flashing is often a covered peril under Oklahoma homeowner policies — you'd pay your deductible and your carrier covers the rest. Proof Construction documents damage forensically and advocates for the full scope you're owed. See how the Oklahoma claims process works.
Repair or Replace? The Honest Checklist
We make money on both — so here's the decision framework we use with our own customers:
Repair It When…
• The leak is traced to sealant or flashing, not the unit
• The skylight is under ~15 years old
• Glass is intact and seals aren't fogged
• The curb is dry and solid
• It's your first or second leak in the unit's life
Replace It When…
• The unit is 20+ years old — repairs are throwing money at worn-out seals
• Glass is fogged (failed sealed unit) or hail-cracked
• The curb is rotted or the frame is warped
• It has leaked repeatedly after repairs
• You're reroofing anyway — replacing now shares the flashing labor
One more consideration unique to Oklahoma: if your roof is near end-of-life (say, 15+ years in on a 25-year shingle), a new skylight installed today may have to be pulled and re-flashed when the reroof happens in a few years. When the roof and skylight are both aging out, doing them together is almost always cheaper than twice — ask us to quote it both ways.
Skylight Leak Repair — FAQs
Why is my skylight leaking in Oklahoma?
In the Oklahoma market the overwhelming majority of skylight leaks are failures in the flashing, sealant, or gaskets around the unit — not the glass. Dried-out sealant, improperly lapped step flashing, a missing cricket or back dam on sloped roofs, and wind-driven rain are the usual culprits. Hail can also crack the glass or break the seal between panes. A licensed contractor has to inspect from the roof to identify the actual failure point.
How much does skylight leak repair cost in Oklahoma?
Typical 2026 ranges: a minor re-seal or gasket repair runs $250–$600; replacing the flashing around an existing skylight runs $400–$1,200; a full replacement runs $800–$2,000 for a fixed curb-mount unit and $1,200–$2,800 for a vented or low-profile deck-mount unit. If the skylight is replaced at the same time as the roof, the flashing work is shared and the total is often lower. Call (918) 734-4444 for a free, exact quote.
Should I repair or replace my leaking skylight?
Repair when the leak is limited to sealant or flashing, the unit is under roughly 15 years old, and the glass is intact. Replace when the unit is 20+ years old, the sealed glass is fogged or cracked, the curb is rotted, it has leaked repeatedly after repairs, or you're reroofing anyway — replacing during a reroof costs far less than doing it later.
What's the difference between curb-mount and deck-mount skylights?
A curb-mount skylight sits on a raised curb, typically 4–8 inches tall, and is the most common type on sloped asphalt shingle roofs — the curb ties into the shingle field with step flashing, which is easier to install correctly and to service later. A deck-mount skylight sits nearly flush with the roof deck and is common on low-slope or metal roofs; it looks sleeker, but replacement requires more surrounding roof work and leaves less room for error in the flashing.
Does homeowners insurance cover skylight repair in Oklahoma?
Oklahoma homeowner policies generally cover skylight damage caused by a covered peril such as hail or wind — for example, a hail-cracked skylight or flashing torn loose in a windstorm. Slow leaks from age or wear are maintenance issues and aren't typically covered. If a storm damaged your skylight or roof, we document the damage forensically and advocate for the full scope you're owed.
Stop the Drip Before It Becomes a Decking Problem
No call centers, no storm-chaser pressure — just a licensed Oklahoma contractor (CIB #80004070) who will get on the roof, trace the leak to its actual entry point, and give you a written repair-or-replace recommendation. Interior water stains and decking rot only get more expensive the longer they sit.
Cost ranges shown are 2026 installed market ranges for the Oklahoma / Tulsa metro area as observed by Proof Construction LLC (CIB #80004070) and are estimates for planning purposes only. Every skylight and roof is different — an on-roof inspection is required for an exact price. 1709 W Detroit St, Suite #A, Broken Arrow, OK 74012. Hours: Mon–Fri 7:00 AM–7:00 PM, Sat 8:00 AM–4:00 PM.