Tuck Pointing vs. a Full Chimney Rebuild — What Your Bricks Actually Need
Chimneys are one of the most ignored parts of a house — until they start leaking. When someone calls us about a leak near the fireplace, one of three things is usually going on. Here's how we figure out which one, and what each fix actually costs.
1. Tuck pointing — when the mortar goes but the bricks are fine
Mortar is softer than brick, so it fails first. If you can scrape mortar out with a screwdriver but the bricks are still square and solid, we grind out the failed joints, pack in matched mortar, and tool them clean. A typical chimney tuck-point runs a few hundred to a couple thousand, depending on height and access.
2. Crown and flashing — the most common leak source
The 'crown' is the concrete cap on top. It cracks. Water gets in, freezes, cracks it more. Combined with a leaky metal flashing where the chimney meets the roof, this is 80% of the 'water spot on my ceiling near the fireplace' calls we get. Both are usually a one-day fix.
3. Full or partial rebuild — when the bricks themselves are toast
Bricks that are flaking (spalling), tilting, or missing whole faces are done. Once the brick is compromised, no amount of mortar work will save it — we take the chimney down to the roof line (or lower) and rebuild with new brick, new flashing, new cap. Bigger job, but it's a 50-year fix.
One Ohio freeze-thaw cycle on a compromised chimney can double the damage. A $400 tuck point in September can turn into a $4,000 rebuild by April. Really.
How to check yours from the ground
- Look for missing mortar joints — you can spot them with binoculars from the yard.
- Check the flashing where the chimney meets the roof. Any lifting or gaps is a red flag.
- Look for white powdery residue on the bricks (that's efflorescence — a sign of water moving through).
- Check the ceiling near the fireplace after a hard rain for any staining.
We don't do chimney sweeping ourselves, but we work with local sweeps and can refer you. We handle the masonry and flashing side.
A properly done tuck point with matched mortar should give you 25+ years.
We color-match as close as we can. On chimneys older than about 80 years, you can often see a slight tone difference for the first year or two before the new mortar weathers in.
Send us a couple of photos of your chimney and we'll tell you whether it needs tuck pointing, a rebuild, or nothing at all. (440) 339-6862.
Robert is the owner of Jim Bob's Roofing & Construction, a family-run, BBB-accredited crew serving LaGrange, Oberlin, Elyria, Wellington, and the rest of Lorain County. He's on-site every day and picks up the phone himself.
Get your free estimate
from Jim Bob's today.
Tell us about your project and we'll come out to give you an honest, no-pressure quote — usually within 48 hours.