There is no fixed lifespan for tuckpointing, and we will not invent one. How long it lasts depends on five things: whether the mortar is softer than the brick, how deep the old joint was ground out, the weather and curing during the work, where the wall is most exposed, and whether the water source was fixed. Done right, it can outlast a lot of seasons. Done wrong, it fails in a few winters. Inspect the wall at least once a year.
Searching "how long does tuckpointing last" gets you a number from nearly every contractor website. None of those numbers come from the City of Chicago, the National Park Service or the Brick Industry Association, and we have not found a published source that sets one. So here is the straight answer: it depends, and it depends on things you can check. Below is what decides it, how to inspect your own wall, and what to ask before you pay for the work.
Why there is no single number
Tuckpointing is repairing or replacing the mortar between bricks. The Brick Industry Association (BIA) notes that pointing, repointing and tuckpointing are used interchangeably (BIA). The repair lasts as long as the new mortar stays bonded, sound and water-shedding, and that depends on the wall it is in. Two Chicago buildings repointed the same week can be in very different condition ten years later because the brick, the exposure and the work itself were different.
Also, the wall is a system. Mortar joints are meant to be the sacrificial part. The National Park Service (NPS) says stress should be relieved by the mortar, not the brick (NPS Preservation Brief 2). A joint that is doing its job will eventually wear and need renewing. That is normal, not a defect.
What decides how long tuckpointing lasts?
1. The mortar is softer than the brick
This is the biggest single factor. Repointing mortar must be softer and more vapor-permeable than the brick, and no harder than the original mortar (NPS). When it is harder, moisture and salts move out through the brick, and salt crystallizing inside the brick can make the face spall or delaminate (NPS). The joint may stay sound while the brick goes. That is not tuckpointing that lasted, it is tuckpointing that failed somewhere else. See the mortar mistake that ruins Chicago brick.
2. How deep the old joint was ground out
Old mortar should be removed to a depth of 2 to 2.5 times the joint width, about 1/2 to 1 inch for most brick joints (NPS). Shallower, and the new mortar has little to bond to and can pop out. This is one of the first things to ask about, and a reason a cheap, fast job can cost more later.
3. The weather and curing during the work
Mortar needs wall temperatures between 40 and 95 degrees F to avoid freezing or drying too fast. The NPS says to protect finished work from freezing and not to use antifreeze admixtures (NPS). Lime-rich mortar that dries too fast can chalk and lose adhesion, so the NPS advises light misting once joints are thumbprint-hard and tooled, and burlap over the wall for the first three days (NPS). A job done in the wrong conditions, or left to dry on its own, can fail early. See best time to tuckpoint in Chicago.
4. Where on the building the wall sits
Parts of a building that are exposed to more water wear faster. BIA says caps and copings sit at the most exposed location and exist to channel water away from the building (BIA). Brick caps with many mortar joints can be a poor choice there. In general, expect the tops of walls, parapets, chimneys and walls that stay wet (below leaking gutters, around failed flashing) to need attention sooner than a protected wall.
5. Whether the water source was fixed
If water is getting behind the wall, new joints are a short-term fix. BIA says to find and fix the moisture or salt cause first (BIA). Flashing collects water that got behind the brick and directs it back out, and it belongs at wall bases, sills, openings, tops of walls, parapets and chimneys (BIA). Freeze-thaw of saturated brick is a cause of brick damage too (BIA). Mortar cannot outlast a wall that keeps getting soaked.
On Chicago two-flats and three-flats, the side and rear walls and the tops of walls usually fail before the front, because water finds them first. We often see a front elevation that was repointed and still looks good next to a side wall where the joints are open to the brick. The front was done. The sides were not.
How often should I inspect my brick?
The City does not set an inspection interval for ordinary two-flat or three-flat masonry that we have found. What it does require is that the exterior of a building be maintained in good repair, with masonry joints kept weather resistant and water tight (Title 14X). So the practical rule is yours to set: look at the walls at least once a year, in spring after the freeze-thaw season, and after any serious leak.
Look for:
- Mortar you can scrape out with a key or that crumbles when you press it.
- Joints with visible gaps or hairline cracks at the brick edge.
- Brick faces flaking beside the joints.
- White salt deposits on the wall.
- Water stains below windows, rooflines and parapets.
- Moss or plants growing in the joints.
For help reading what you see, read signs your brick needs tuckpointing. If you are not sure repair is needed at all, see is tuckpointing necessary.
What should I ask for when I get tuckpointing done?
You cannot guarantee a number of years. You can control the inputs. Ask:
- What mortar are you using, and why is it right for this brick?
- How deep will you grind, and with what tool?
- Will you do a test panel for color and texture?
- How will the work be protected while it cures?
- Did you look for where water is getting in, and what did you find?
- What does your warranty cover, in writing?
A contractor who answers those directly is giving you a better chance than one who just names a number of years. Our tuckpointing crew will walk your walls and tell you what is worth doing now and what can wait. The Chicago tuckpointing guide covers the whole process.
When should I not wait?
If you see loose brick, bricks that have shifted, or mortar missing in a pattern that follows a stair-step crack, do not wait for your next spring check. Have it looked at soon. Loose masonry over a sidewalk is a safety issue as well as a maintenance one.
Common questions
There is no fixed number. It depends on whether the mortar is softer than the brick, how deep the old joint was ground out, the weather during the work, how exposed the wall is, and whether water was stopped at the source. Done well it can last many seasons. Done wrong it can fail in a few winters.
There is no set schedule that applies to every building. Check your walls at least once a year, in spring, and repoint when joints crumble, open up or let water in. Walls that stay wet or are most exposed usually need work first.
The usual causes are mortar harder than the brick, joints not ground out deep enough, poor weather or curing conditions, or water still getting behind the wall. Brick that flakes next to new joints often means the mortar was too hard.
Yes. Ask for the terms in writing: what is covered, for how long, and what voids it. A warranty is not a lifespan figure, but it tells you what the contractor stands behind.
Sources
- National Park Service: Preservation Brief 2: Repointing Mortar Joints in Historic Masonry Buildings (PDF)
- Brick Industry Association: Repointing Brick Masonry (PDF)
- Brick Industry Association: Technical Note 23A: Efflorescence, Causes and Mechanisms (PDF)
- Brick Industry Association: Technical Note 7: Water Penetration Resistance, Design and Detailing (PDF)
- Brick Industry Association: Technical Note 36A: Caps and Copings, Corbels and Racking (PDF)
- City of Chicago: Code Modernization Ordinance, including Title 14X Minimum Requirements for Existing Buildings (PDF)
Facts last checked: October 7, 2026.
This article explains general rules and common situations in Chicago. It is not legal advice, and City rules change. For a specific property, check with the Chicago Department of Buildings or a licensed professional.