Janesville roofs face repeated hits from the humid continental climate, where summer hailstorms dent asphalt shingles and winter ice dams form along eaves on older homes in Downtown Janesville and the Courtney neighborhood. Wind-driven rain often finds its way under flashing around chimneys and vents, especially on the exposed West Side properties near the Rock County Courthouse. We inspect for hidden deck rot that develops when water sits under lifted shingles, a common issue after heavy spring storms that also affect homes closer to Beloit.
Repair work here must account for the age of housing stock, with many East Side and West Side homes built before 1970 carrying original or once-replaced decks that soften faster under repeated freeze-thaw cycles. We match existing shingle profiles and colors rather than installing mismatched patches that stand out after the first snowfall. Temporary tarping is used only when needed to protect interiors until permanent repairs can be completed during the narrow window between cold snaps.
Code compliance in Rock County requires proper underlayment and ventilation updates when more than 25 percent of a roof plane is replaced after storm damage. We check attic insulation levels because poor ventilation turns minor leaks into widespread mold on the East Side near Rotary Botanical Gardens, where mature trees drop debris that clogs gutters and holds moisture against the roof edge.
Technician insight
In Janesville the thing that catches most people out with storm damage roof repair is hidden deck rot along the north-facing eaves on pre-1970 homes in the East Side and Courtney neighborhoods. Cold winters keep ice dams in place for weeks, and the melt water soaks the deck before homeowners notice interior stains near the Rock County Courthouse area.
Wind Damage on West Side Home
A homeowner near Riverside Park called after a June storm lifted shingles on the south slope. We found two rows of decking softened by prior ice dam leaks. We replaced the damaged deck sections, installed new underlayment and matching shingles, and added ridge vent to improve airflow. The roof has stayed dry through the following winter.
Storm Damage Roof Repair Services We Offer
✓Hail Damage Assessment
On-site inspection that maps granule loss and dent patterns on asphalt and metal roofs common in Janesville neighborhoods.
✓Wind Uplift Repair
Re-securing or replacing lifted shingles and damaged flashing after straight-line winds that hit the open West Side and Courtney areas.
✓Ice Dam Removal and Prevention
Heat cable installation and targeted shingle replacement to stop recurring ice dams on older East Side homes during cold Janesville winters.
✓Leak Tracing After Storms
Moisture meter and attic inspection to locate hidden entry points around vents and valleys near Riverside Park and the Performing Arts Center.
✓Emergency Tarping
Same-day temporary coverage for exposed decks after severe wind or hail events before full repairs can be scheduled.
Storm Damage Roof Repair Cost in Janesville, WI
| Service | Typical Range | What Affects It |
|---|---|---|
| Hail patch repair on one slope | $450–$950 | Moves with number of damaged shingles and whether deck needs replacement. |
| Ice dam section repair | $600–$1,200 | Includes heat cable when multiple winters have damaged the same eaves. |
| Wind uplift on two slopes | $800–$1,600 | Varies by access on two-story homes near Rotary Botanical Gardens. |
| Full slope replacement after major storm | $2,800–$5,500 | Depends on square footage and any required ventilation upgrades. |
Ranges are typical for Janesville, WI and confirmed with an exact written quote before any work starts.
How it works
- 1
Initial Inspection
We walk the roof and attic with a moisture meter to document every affected area on Janesville homes.
- 2
Damage Documentation
Photos and notes are prepared for insurance adjusters, noting specific conditions like ice dam locations on older stock.
- 3
Material Matching
Shingles and flashing are sourced to match existing colors and profiles found on Rock County homes.
- 4
Permanent Repair
Deck repairs, underlayment, and new shingles are installed with proper ventilation updates where required.
- 5
Final Walkthrough
We review the completed work with the homeowner and provide maintenance guidance for the next season.
Pricing
Upfront written quotes after inspection; final price depends on extent of hidden deck damage.