Chimney flashing fails fast in Minneapolis because our humid continental climate drives repeated freeze-thaw cycles. Ice dams push under the old lead or aluminum step flashing on homes in Northeast and North Loop. We remove the damaged pieces, install new 26-gauge galvanized step flashing tucked under the shingles, and add counter flashing into the chimney mortar joints so water runs clear instead of behind the brick.
Many cheap crews in Uptown and Powderhorn just slap on caulk or roof tar. That cracks the first winter and lets meltwater into the attic. We always pull permits through Hennepin County when the job touches structural flashing. On older stock near the Mississippi Riverfront the original flashing is often too short, so we extend it 6 inches up the chimney and 4 inches under the shingles.
Access matters on two-story homes in Longfellow and Camden. We set up proper staging instead of ladders so the work stays straight. Warm humid summers here also make asphalt shingles soft, so we work early to avoid scuffing the roof surface while we lift and reset courses around the chimney.
Common Failure Points
Ice and snow push against low flashing on chimneys in Southwest and University neighborhoods. Mortar joints crack from expansion, letting water run straight down the flue.
Chimney Flashing Repair Services We Offer
✓Emergency Chimney Flashing Repair
24/7 response for active leaks around chimneys in Minneapolis. We arrive same day with materials to stop water before it hits ceilings.
✓Chimney Flashing Replacement on Shingle Roofs
Full cut-out and replace of step and counter flashing using 26-gauge galvanized on homes in Northeast and Uptown.
✓Copper Chimney Flashing Repair
Match existing copper on historic homes near Stone Arch Bridge and Walker Art Center, soldered seams for 30-year hold.
✓Commercial Chimney Flashing Fix
Low-slope and masonry chimney flashing on small commercial buildings in Downtown and North Loop using reinforced membrane and metal.
✓Ice Dam Chimney Flashing Repair
Remove damaged flashing after ice dam events in Phillips and Cedar-Riverside, install taller step flashing to prevent repeat leaks.
Chimney Flashing Repair Cost in Minneapolis, MN
| Service | Typical Range | What Affects It |
|---|---|---|
| Repair chimney flashing leak | $650–$950 | Single-story homes with easy access and standard galvanized. |
| Replace full chimney flashing set | $1,100–$1,800 | Two-story homes, copper material, or rotted decking around chimney. |
| Ice dam chimney flashing fix | $850–$1,400 | Includes taller flashing and extra sealant after ice damage. |
| Commercial chimney flashing repair | $1,200–$2,400 | Masonry or low-slope roofs, reinforced membrane details. |
| Free estimate for chimney flashing repair | Free | Call 24/7, on-site visit within one business day. |
Ranges are typical for Minneapolis, MN and confirmed with an exact written quote before any work starts.
How it works
- 1
Inspect and Mark
We climb and check every joint around the chimney, mark failed flashing, and note any rotted decking. Takes 30-45 minutes.
- 2
Remove Old Flashing
Lift shingles, cut out old step and counter flashing, clean mortar joints. 1-2 hours depending on access.
- 3
Install New Flashing
Slide new 26-gauge galvanized or copper step flashing under shingles, lock into chimney with lead wedges and mortar. 2-3 hours.
- 4
Seal and Test
Reset shingles, run water test from hose, confirm no leaks into attic. Finish in under an hour.
Pricing
Most chimney flashing repairs in Minneapolis run $650 to $1,800 depending on stories and material.