Spokane's older housing stock in neighborhoods like Browne's Addition and the South Hill often features original metal flashing installed decades ago that has corroded from repeated freeze-thaw cycles and heavy winter snow. Proper replacement requires matching the profile and gauge to existing roofing while ensuring step flashing integrates with siding and underlayment to prevent ice dam seepage. Homeowners frequently overlook counter-flashing at chimneys and walls where differential movement from seasonal expansion creates gaps.
Valley and eave flashing in Spokane Valley homes must account for the area's mix of steep and low-slope roofs combined with spring runoff that funnels large volumes of water. We use 26-gauge galvanized or copper materials cut on-site to fit irregular angles common in early 20th-century construction. Edge cases include stucco walls where flashing must be embedded behind weep screeds and cedar shake roofs where fastener placement avoids splitting aged shakes.
Code requirements in Spokane County emphasize positive drainage and sealed laps at all transitions. We remove deteriorated flashing completely rather than overlaying new material, which traps moisture and accelerates deck rot. Work is scheduled around dry windows to avoid leaving penetrations exposed overnight during the wetter months.
Technician insight
In Spokane, the thing that catches most people out with flashing replacement is how freeze-thaw cycles on South Hill homes with 1920s–1940s construction crack soldered joints that look fine from the ground until meltwater finds the seam.
Chimney Leak After Winter
Homeowner in Browne's Addition reported interior stains following snowmelt. Inspection showed cracked lead flashing around the chimney. We removed the old material, installed new copper step and counter flashing matched to the existing slate roof, and confirmed drainage. No further leaks occurred the following season.
Flashing Replacement Services We Offer
✓Chimney Flashing Replacement
Removes failed step and counter flashing around brick or metal chimneys and installs new corrosion-resistant material to block meltwater entry common after Spokane winters.
✓Valley Flashing Repair
Replaces or upgrades open and closed valleys where runoff concentrates, using wider pans and proper overlap to handle heavy spring rains in Spokane neighborhoods.
✓Wall Flashing Installation
Installs new kick-out and step flashing at roof-to-wall junctions to prevent water from migrating behind siding on split-level homes throughout the Spokane area.
✓Skylight Flashing Replacement
Replaces degraded skylight curb flashing and apron pieces that fail from UV exposure and snow accumulation on South Hill and North Spokane homes.
✓Eave Flashing Upgrade
Adds or replaces drip edge and gutter apron flashing along eaves to direct water away from fascia boards damaged by repeated ice buildup.
Flashing Replacement Cost in Spokane, WA
| Service | Typical Range | What Affects It |
|---|---|---|
| Chimney flashing replacement | $350–$750 | Higher for two-story or steep roofs common on South Hill |
| Valley flashing section | $200–$450 | Depends on length and whether open or closed valley |
| Wall transition flashing | $150–$350 | Per wall; stucco homes add complexity |
| Skylight flashing set | $300–$600 | Varies with curb condition and roof slope |
Ranges are typical for Spokane, WA and confirmed with an exact written quote before any work starts.
How it works
- 1
Site Assessment
Inspect all flashing locations from roof and attic, noting material condition, roof pitch, and access constraints typical of Spokane's varied housing ages.
- 2
Material Selection
Choose gauge and metal type to match existing roof while meeting local wind and snow load expectations.
- 3
Old Flashing Removal
Carefully extract deteriorated sections without damaging underlayment or decking, especially around older chimneys and valleys.
- 4
New Installation
Cut, fit, and fasten new flashing with proper overlaps and sealant at all transitions.
- 5
Final Check
Verify drainage paths and perform water test where feasible before cleanup.
Pricing
Upfront quotes provided after inspection; cost driven by access, metal type, and number of transitions.