Roof Flashing Cost in Oregon
Roof flashing repair usually costs between 250 and 700 dollars for a small area, while replacing flashing during a reroof runs about 300 to 1,500 dollars depending on how much there is. Step flashing along a wall, chimney flashing, and valley flashing each price differently. Because flashing failure is one of the most common leak sources in wet climates, fixing it early is far cheaper than repairing the water damage it causes.
Roof flashing cost by type
Flashing is the thin metal that seals the joints where a roof meets a wall, chimney, skylight, or valley. It is where most roofs leak first. Costs vary by where the flashing is and how hard it is to reach.
| Flashing type | Typical cost | Notes |
|---|---|---|
| Step flashing (wall) | 300 to 900 dollars | Along a sidewall or dormer |
| Chimney flashing | 300 to 1,200 dollars | Counter flashing plus a cricket if needed |
| Valley flashing | 400 to 1,500 dollars | Where two roof planes meet |
| Skylight flashing | 300 to 800 dollars | Often bundled with a skylight reseal |
| Drip edge | 2 to 5 dollars per linear foot | Along eaves and rakes |
Repair or replace
A single loose or lifted piece of flashing can often be resealed or reset for a few hundred dollars. If the flashing is rusted, undersized, or was installed over the shingles instead of woven in, it usually needs to be replaced. During a full reroof, all flashing should be replaced as part of the job, not reused, because old flashing is a common reason a brand new roof still leaks.
Why flashing matters so much in the Willamette Valley
In a wet climate, water finds every weak joint. Chimneys, skylights, and wall intersections take on more driven rain here than a roof field does, so flashing is often the first thing to fail. Catching a small flashing issue during a routine inspection can save thousands in interior repairs, insulation, and mold remediation down the line.
Frequently asked questions
How much does it cost to replace roof flashing?
Most flashing replacements run 300 to 1,500 dollars depending on the type and amount. Chimney and valley flashing sit at the higher end because they are more complex.
Can flashing be repaired instead of replaced?
Sometimes. A loose or lifted piece can be resealed or reset for a few hundred dollars. Rusted, undersized, or improperly installed flashing should be replaced.
Is flashing included in a new roof?
A quality reroof replaces the flashing rather than reusing it. If a quote reuses old flashing, ask why, because that is a common cause of leaks on new roofs.
How do I know if my flashing is leaking?
Water stains on a ceiling near a chimney, wall, or skylight are the classic sign. A roof inspection can confirm whether the flashing or the field of the roof is the source.