Chimney crown repair in Minneapolis starts at the top of the stack. The crown is the concrete slab that sheds water off the brick. When it cracks, water gets into the masonry below. Minnesota runs 80 to 100 freeze and thaw cycles a year, and wet brick comes apart. Our chimney crown repair work follows three paths. We seal crowns that are still sound, and we patch and coat wider cracks. When the crown is broken, we form and pour a new one. Caps and flashing get handled on the same trip. The rest of the stack sits inside our chimney repair and liner work.
Most calls start with a stain. Water shows up on the ceiling near the chimney, or on the wall beside it. Other callers find white chalky staining on the brick, mortar crumbs on the roof, or grit in the firebox. Some are working from a home inspection report. We get on the roof, photograph the crown, caps and flashing, and check the top courses of brick. You get a written recommendation to seal, repair or recast. When the top courses have gone soft, the answer is a partial rebuild. Here is how we rebuild a chimney above the roofline.
Tell us about your project and we’ll get right back to you.
Grading a crown starts with what is up there. A poured concrete crown is thick at the center and pitched to drain. It hangs past the brick and carries a drip edge cast into the overhang. A mortar wash is a thin skim of mortar troweled over the top courses. Plenty of mid century Twin Cities chimneys got one instead. It cracks early, sits flush with the brick, and sends water straight down the face. From the roof we log hairline cracks, open cracks, missing corners and any gap around the flue tile.
Three paths come out of that. Hairline cracks in a sound, pitched crown take a brush applied elastomeric coating that stays flexible. Wider cracks and broken corners get cut back, patched and coated. A cracked mortar wash, or a crown with no overhang, gets recast. We form it, pour it and leave a bond break at the flue. Sealing is a real fix on a sound crown. On a failed mortar wash it is a bandage, so we grade the crown before we quote. The path you pick moves the number, and published crown repair cost ranges for Minnesota sit in our guide.
The 2020 Minnesota Residential Code sets the standard we build to. Section R1003.9.1 covers the top of a masonry chimney. It calls for a concrete, metal or stone cap with a drip edge. It also calls for a caulked bond break around any flue liners, and a slope that sheds water. The code says cap where we say crown, and our caps are the metal covers over the flue. Code governs permitted work, and it does not force an old chimney into a rebuild. Ask your city building department how the rules read for your address.
Every part of that line does a job here. The overhang throws runoff past the brick instead of onto it. The drip edge breaks the sheet of water so it falls clear. The bond break lets the flue tile and the concrete move at their own rates. Through 80 to 100 freeze and thaw cycles a year, that movement never stops. We build a form on the top courses, set the pitch, pour the concrete and tool the edge. A mortar wash skips all of it, and it fails first. Finished crowns and caps show up in photos from masonry jobs we have completed.
Most Twin Cities chimneys are missing caps, and an open flue takes rain straight down the stack. It soaks the smoke chamber and rusts the damper. We fit stainless steel caps on single flues and full covers over multi flue tops. They anchor into the crown once it has cured. Older housing keeps this work steady across the metro. About 88,000 of the roughly 216,000 housing units in Minneapolis were built in 1939 or earlier. Across the river, the chimney repair work we handle in St. Paul runs on the same stock.
A leak beside a chimney comes from one of two places. Either the flashing has failed at the roof line, or water is soaking through the masonry above it. We say which one it is before we write the scope. Failed step flashing and counter flashing get cut back into the joint and reset in sound mortar. Years of water under a broken crown take out the top courses first. Joints wash out and brick faces spall. We rebuild those courses and repoint the joints with matched mortar.
Free, no-obligation estimates across Minneapolis and the Twin Cities metro.
(320) 465-1161From the first look at the site to the final walk-through, here is exactly how it goes.
We assess the masonry where it lives — what failed, why, and how far it has spread. On commercial buildings that means getting on the wall, not a drive-by.
You get a written price with the must-fix separated from the can-wait, so the budget goes where the wall needs it. Timelines and access logistics are spelled out up front.
Matched materials, full joints, proper crowns, real bases and drainage. Occupied buildings stay open, sites get protected, and cleanup happens every day — not just the last one.
We walk the finished work together — joints, matches, cleanup, the whole scope. Done means you have looked at every part of it and said so.
Common questions about chimney crown repair across Minneapolis and the Twin Cities metro. Don't see yours? Give us a call — we're happy to help.
Restoration for factories, apartment buildings, churches, schools and storefronts — wall rebuilds, stone and brick repair, parapets and lintels, run by a crew that works occupied properties.
Learn More
Full and partial chimney rebuilds — deteriorated stacks torn down to sound masonry and rebuilt with new brick, cast crowns and stainless caps.
Learn More
Crown repair, joint repointing, spalled brick replacement, stainless caps and chimney liner systems — the fixes that stop water before it forces a rebuild.
Learn More
Failed mortar ground out and repointed to match the original — on chimneys, houses, and full commercial elevations. The fix that saves the wall you already have.
Learn More
Spalled brick cut out and replaced, cracks stitched, bowed sections rebuilt, porch piers and steps restored — matched so the repair does not read as one.
Learn More
Block and stone retaining walls engineered for Minnesota frost — proper base, drainage and reinforcement — plus rebuilds of walls that have started to lean.
Learn MoreWhat a chimney crown does, how to tell crown damage from cap damage, when a crack can be sealed versus recast, and published 2026 repair costs.
Read more →What chimney repair costs in Minnesota: caps, crowns, flashing, repointing, liners and partial rebuilds, with the ranges and what moves each number.
Read more →When a Minnesota chimney can be repaired and when it needs a rebuild: real cost ranges for crowns, caps, liners, partial rebuilds and full rebuilds, plus the signs.
Read more →Rebuilding walls, chimneys and facades is the core of the work here. Matched brick, matched mortar, proper crowns and full joints, because that is why masonry lasts.
Freeze-thaw is the enemy of every wall in this state. Crowns that shed, joints struck to drain, air-entrained concrete, drainage behind every wall: details chosen for this climate, not a milder one.
We assess on the wall, separate must-fix from can-wait, and put price and timeline in writing. Owners and property managers can phase budgets instead of getting one take-it-or-leave-it number.
Occupied buildings, lifts and scaffolds, site protection and daily cleanup. We run residential jobs with the same discipline as a church tower, because the standard should not change with the address.
A wall that worries you, a driveway past its best, or a backyard ready to become the good part of the house? Call or send the form and we will look at the site with you and hand you a straight written quote.
Tell us about your project and we’ll get right back to you.
