Spokane homes built before 1960 often feature cedar shake roofs that suffer from repeated freeze-thaw cycles and heavy winter snow loads. These conditions cause shakes to cup, split, and trap moisture against the underlayment, leading to rot that spreads quickly along valleys and around chimneys. Repair work here requires lifting individual shakes without disturbing sound ones, then replacing only the damaged sections with matching cedar, sometimes escalating to a partial roof replacement while checking for hidden deck damage.
Moss and lichen growth accelerates in the damp Spokane climate, especially on north-facing slopes common in South Hill neighborhoods. Left untreated, it holds water against the wood and shortens roof life by years, which is why we recommend moss removal treatment before it spreads. Targeted removal followed by zinc strip installation prevents regrowth without harsh chemicals that can stain siding or harm nearby landscaping. Proper ventilation checks during every repair job, part of a broader attic ventilation upgrade, also address the attic moisture issues typical in Spokane County's older homes.
Edge flashing around skylights and plumbing vents often fails first on shake roofs because the original lead or copper has corroded. We replace these with copper step flashing through vent pipe flashing integrated into the existing shake courses so water sheds correctly during spring rains. Homeowners in areas like Browne's Addition frequently discover these leaks only after interior ceiling stains appear, making early roof inspection critical before damage reaches drywall and insulation.
Technician insight
In Spokane the thing that catches most people out with shake roof repair is how quickly rot spreads under the shakes once snowmelt sits against the felt paper on south-facing slopes near the South Hill. Homeowners often think a few missing shakes are cosmetic until they see water stains in the attic after the first spring thaw.
South Hill cedar shake leak
A 1950s home on the South Hill showed ceiling stains after heavy March rain. We found rotted shakes and failed valley flashing allowing water under the underlayment. Replaced 18 shakes, installed new copper flashing, and treated moss on the north slope. No further leaks reported through the next winter.
Shake Roof Repair Services We Offer
✓Cedar Shake Replacement
Remove and install individual damaged cedar shakes to match existing grain and thickness while preserving surrounding courses.
✓Moss Removal and Prevention
Clean moss from shake surfaces and apply zinc strips along ridges to stop regrowth common in Spokane's wet winters.
✓Valley and Flashing Repair
Replace corroded step flashing and woven valleys to stop leaks at roof intersections without full re-roofing.
✓Shake Roof Leak Detection
Trace active leaks using moisture meters and targeted probing on older Spokane homes before interior damage spreads.
✓Ridge Cap Restoration
Repair or replace deteriorated ridge caps that allow wind-driven rain under the shakes during Spokane storms.
Shake Roof Repair Cost in Spokane, WA
| Service | Typical Range | What Affects It |
|---|---|---|
| Minor shake replacement | $450–$900 | Single slope, limited access |
| Valley and flashing repair | $600–$1,200 | Includes new copper step flashing |
| Moss removal with zinc strips | $350–$700 | Full roof treatment |
| Ridge cap restoration | $400–$850 | Per 20 linear feet |
Ranges are typical for Spokane, WA and confirmed with an exact written quote before any work starts.
How it works
- 1
On-Site Inspection
Examine every accessible shake, valley, and flashing from the roof surface and attic to locate rot and active leaks.
- 2
Damage Mapping
Mark specific shakes and underlayment sections needing replacement and note ventilation or moss issues affecting the roof.
- 3
Targeted Repair
Lift and replace only damaged shakes, install new flashing where needed, and treat for moss prevention.
- 4
Final Walk-Through
Review all repaired areas with the homeowner and explain any ongoing maintenance steps for Spokane weather.
Pricing
Most shake roof repairs in Spokane fall between a few hundred dollars for small sections and several thousand when multiple slopes or flashing issues are involved.