Quick Answer
Most skylight repairs in Woodshire fall between $250 and $900 for flashing or seal work. Full replacement of a residential unit, including labor, flashing kit, and interior trim, typically runs $900 to $2,500 per skylight. New installations on a roof that was not previously cut for one run higher because of framing and drywall work. Skylights generally last 15 to 25 years, and flashing failure almost always shows up before the glazing itself fails.
When a Skylight Needs Attention
You do not need a moisture meter to catch most skylight problems. The signs show up on the ceiling and around the frame long before the deck underneath gets soft. Watch for the following:
- Brown or yellow staining on the drywall around the shaft
- Condensation pooling on the inside of the glass in winter
- Visible cracks in the glazing or a fogged look between panes
- Peeling paint or bubbling on the interior trim
- Daylight visible around the frame from inside the attic
- Shingle granules collecting in the flashing channels
- A musty smell in the room directly below the unit
- Soft spots on the drywall shaft when pressed lightly
A single stain after one heavy storm can sometimes be traced to ice damming or a clogged valley rather than the skylight itself. That is why we pair skylight diagnosis with a full roof leak detection and repair inspection rather than assuming the obvious suspect is the cause. In many cases, the water entry point is several feet uphill from where the stain appears, and the skylight flashing is simply the first horizontal surface the water reaches.
What a Proper Install Looks Like
The skylight itself is rarely the weak point. The flashing detail is. A correct install on an asphalt roof includes:
- Cutting the opening and framing a level curb if the unit requires one
- Installing ice and water shield around the full perimeter
- Setting the unit and fastening per manufacturer spec
- Layering step flashing with each course of shingles up the sides
- Installing a head flashing and apron at top and bottom
- Sealing penetrations with compatible sealant, not roofing tar
- Finishing the interior shaft with insulated drywall returns
Shortcuts here are why so many skylights leak by year seven. If you are also looking at broader roof condition, pairing the skylight work with targeted roof repair or scheduled replacement often saves a second mobilization fee. Woodshire Roofing crews typically complete a single unit replacement in one day, weather permitting, with interior touch up scheduled for the following visit.
Repair or Replace: How We Decide
The age of the unit matters more than the size of the leak. A ten year old skylight with failed step flashing is usually worth repairing. A twenty year old unit with a fogged thermal pane and corroded flashing is not. Here is the framework we use on site.
| Condition | Typical Recommendation | Ballpark Cost |
|---|---|---|
| Flashing leak, unit under 12 years | Reflash with new step and apron kit | $350 to $750 |
| Cracked exterior seal, glazing intact | Reseal and inspect flashing | $250 to $500 |
| Fogged or failed thermal pane | Replace unit, reuse opening | $900 to $1,800 |
| Rotted curb or deck around skylight | Replace unit plus deck repair | $1,500 to $2,800 |
| New opening in existing roof | Full install with framing and drywall | $2,200 to $3,800 |
One more factor weighs into the decision: whether the roof itself is within five years of replacement. If it is, we often recommend holding off on a full skylight swap until the reroof, so the flashing is integrated into new shingles rather than lifted and reset later.
Maintenance That Extends Skylight Life
- Clear leaves and debris from the upper flashing channel each fall
- Check interior trim for staining twice a year
- Run a bead of fresh sealant only where the manufacturer specifies
- Keep surrounding shingles in good shape so water sheds cleanly
- Address attic ventilation issues that cause winter condensation
- Trim back overhanging branches that drop debris onto the unit
- Wash the exterior glass once a year to spot hairline cracks early
A ten minute annual check from the attic side, looking for daylight or staining on the framing around the shaft, catches most problems while they are still a repair rather than a replacement.
Why the Flashing, Not the Skylight, Is Usually the Culprit
When a skylight leaks, the homeowner's instinct is to blame the skylight, and most of the time the skylight is fine. The leak is almost always at the flashing, the layered metal and membrane that ties the unit into the surrounding roof. Flashing is what fails when a skylight was set with caulk instead of a proper kit, when the surrounding shingles have aged, or when years of Woodshire freeze and thaw have worked the joints loose. That distinction matters because it changes the fix entirely. Replacing a sound skylight does nothing if the flashing underneath it is the problem, and reworking the flashing correctly often saves a unit a homeowner was told to replace.
Where Skylights Make Sense and Where They Do Not
A skylight is a wonderful thing in the right spot and a recurring headache in the wrong one. The best placements are over rooms that genuinely need daylight and on slopes where water sheds cleanly away from the unit. The riskier spots are low-slope sections where water lingers, valleys where runoff concentrates, and north-facing slopes prone to ice buildup in a Woodshire winter. Size and quantity matter too, since a wall of skylights adds heat gain in summer and more potential leak points to maintain. We are happy to add a skylight where it earns its place, and equally happy to tell a homeowner when a proposed location is asking for trouble down the road.
Skylights and Insurance Claims
Hail and wind damage to skylights is usually covered under the same claim as the rest of your roof. If a storm cracked the glazing or tore the flashing, document it with photos and call your carrier before anything is tarped over. We handle the roof side documentation on insurance claims regularly and can provide the measurements and photos your adjuster needs. Keep in mind that interior damage to drywall, flooring, or furnishings from a leaking skylight often falls under a separate portion of the policy, so documenting both sides matters.
Types of Skylights We Install in Woodshire
Woodshire homes see a mix of older fixed acrylic domes and newer flashed curb glass units. The product you choose affects both the cost and how the unit behaves through our freeze thaw winters.
Fixed Skylights
No moving parts, lowest failure rate, best choice for stairwells, hallways, and closets. These are what we install most often on Woodshire remodels. Expect Woodshire Roofing to spec a laminated inner pane on any unit placed over a living area for safety.
Vented Skylights
Open manually or with a motor. Useful in kitchens and bathrooms where you want to move humid air out. More hardware means more potential service points over 20 years. Rain sensors that close the unit automatically are worth the upgrade in Woodshire, where storms roll in fast.
Tubular Skylights
Small diameter tubes that pipe daylight through the attic into an interior room. Good for closets and windowless baths. Lower cost, usually $600 to $1,200 installed, and installation rarely takes more than half a day.