Appleton roofs in Outagamie County often date back to the early 1900s, especially near Lawrence University and the Fox Cities Performing Arts Center. Chimney flashing on these homes typically uses step flashing tucked under shingles with counter flashing mortared into the brick. Cold winters cause repeated expansion and contraction that cracks mortar joints and lifts metal, letting meltwater run under the roof deck during spring thaws.
Homeowners in the North Side and Downtown frequently see leaks after heavy snow loads followed by warm spells. Standard asphalt shingles meet brick at steep angles here, so proper cricket installation behind the chimney is essential to divert water. Skipping the cricket or using cheap coil stock instead of copper or painted aluminum leads to repeat failures within two seasons.
We match existing flashing profiles when possible and bed new metal in high-grade polyurethane sealant rated for -20°F. On homes near Green Bay or Oshkosh that see lake-effect moisture, we also check for hidden rot in the sheathing before closing the roof. This prevents callbacks when summer humidity returns.
Code in Appleton requires flashing to extend at least 6 inches up the chimney and 4 inches under shingles. We photograph every layer during repair so owners can see why shortcuts fail in our climate.
Technician insight
In Appleton, the thing that catches most people out with Chimney Flashing Repair is how quickly our freeze-thaw cycles open up mortar joints on older brick chimneys in the North Side. Homeowners often think a bead of caulk will hold, but once water gets behind the counter flashing it rots the sheathing before summer even arrives.
Downtown Appleton Chimney Leak After Thaw
A homeowner on the North Side noticed water stains after a March warm spell. We found cracked mortar and lifted step flashing on the west side of the chimney where snow had piled against the brick. We replaced the flashing, added a small cricket, and sealed the crown. No further leaks appeared through the next winter.
Chimney Flashing Repair Services We Offer
✓Step Flashing Replacement
Remove corroded step flashing and install new metal tucked correctly under shingles to restore the primary water barrier on sloped roofs.
✓Counter Flashing Repair
Cut out failed mortar joints and reset counter flashing with fresh lead or copper to seal the chimney-to-roof transition against wind-driven rain.
✓Chimney Cricket Installation
Build a new saddle behind the chimney to divert water and snow load away from the flashing on homes with wide chimneys common in older Appleton neighborhoods.
✓Chimney Crown Sealing
Apply elastomeric coating over cracked chimney crowns to stop water entry that travels down behind flashing and appears as interior ceiling stains.
✓Ice Dam Flashing Upgrade
Add extra self-adhered membrane and raised flashing height to chimneys on North Side homes where ice dams repeatedly form along the north roof slope.
Chimney Flashing Repair Cost in Appleton, WI
| Service | Typical Range | What Affects It |
|---|---|---|
| Minor Flashing Touch-Up | $250–$450 | Single seam repair on one-story homes with easy ladder access |
| Full Chimney Flashing Replacement | $650–$1,200 | Complete step and counter flashing on two-story roofs |
| Chimney Cricket Addition | $400–$750 | Adds saddle behind chimney; price rises with slate or tile roofs |
| Ice Dam Flashing Upgrade | $550–$950 | Includes membrane and taller flashing on north slopes |
Ranges are typical for Appleton, WI and confirmed with an exact written quote before any work starts.
How it works
- 1
Site Inspection
We climb the roof from both sides of the chimney and check flashing condition, mortar joints, and sheathing for rot using a moisture meter.
- 2
Material Removal
Old flashing and sealant are cut away without damaging surrounding shingles, and any rotted wood is noted for the homeowner before proceeding.
- 3
New Flashing Install
Step flashing is woven in with new shingles, counter flashing is mortared into the chimney, and a cricket is added if the chimney width requires it.
- 4
Final Seal and Test
All seams receive polyurethane sealant and the area is sprayed with water to confirm no leaks remain before cleanup.
Pricing
Most chimney flashing repairs in Appleton fall between several hundred and low thousands depending on access and hidden damage.