Tuckpointing vs Repointing: What Chicago Homeowners Need to Know

By Affordable Tuckpointing Pros, a Chicago tuckpointing and brick repair company in business since 1996. License number MC6337.

Direct answer

In everyday Chicago usage, tuckpointing and repointing name the same repair: cutting failed mortar out of the joints and packing in new. The Brick Industry Association reports that ASTM E 2260 defines the two as synonyms. [2] What decides the job is whether the new mortar is softer than your brick. [1]

TL;DR

• On almost every Chicago quote, tuckpointing vs repointing is one repair with two names. BIA reports that ASTM E 2260 makes them synonyms, and NPS calls the tuck pointing usage somewhat inaccurate. [2] [1]
• What decides the job is the mix. New mortar has to be softer and more vapor permeable than the brick, and no stronger than the mortar already in the wall. [1] [2]
• Get that backwards and the brick pays. A hard mix concentrates load on the new strip, and BIA says that stress can lead to spalling of the brick face. [2]
• The narrow sense of tuckpointing is real and it is decorative: a raised or lime putty joint laid over flush joints. Penciling is paint on the joint face. [1]
• The distinction that matters is repointing against face grouting. BIA says they serve different purposes, and it recommends repointing for most joint deterioration. [3]
• Read the scope of work, not the heading. BIA says the meaning of tuckpointing varies by region and that this causes conflicts over job specifications. [2]

One liner: Tuckpointing vs repointing is the wrong argument to have with a contractor. The mortar going into the joint is the decision.

What is the difference between tuckpointing and repointing?

In short: In everyday Chicago usage tuckpointing and repointing name the same repair, cutting failed mortar out of the joints and packing new mortar in, and what decides the job is whether that new mortar is softer than your brick.

Two contractors can look at the same wall and hand you quotes with different words at the top. On most Chicago jobs the difference between tuckpointing and repointing on those two pieces of paper is nothing at all. The Brick Industry Association opens its own guidance by saying the terms "are often used interchangeably, which has led to confusion within the masonry industry." [2] Its maintenance guide writes the work as "repointing (sometimes referred to as tuckpointing)". [3] The National Park Service lists tuck pointing as another name for repointing and calls that use somewhat inaccurate. [1]

So tuckpointing vs repointing is not a menu with two items on it. There is one repair with two names, and there is a narrower, older sense of tuckpointing that almost nobody in Chicago is selling you. Both of those are worth knowing before you sign anything. What matters more is the mortar going back into your joints, and the rest of this post is about how to tell whether that part is right.

Why one repair ended up with two names

In short: Mortar is the sacrificial part of a brick wall, it fails decades before the brick does, and the repair that renews it picked up two names on the way.

People ask how long does tuckpointing last, and the joint is what decides. The Brick Industry Association puts a typical mortar joint past 25 years and brick units past 100. [2] So a wall keeps its brick and gives up its mortar. BIA names the most common reason for the work: keeping water out of the brickwork. [2] Your mortar is the part designed to give way first.

You can usually see when it has. BIA's maintenance guide lists the conditions that call for the repair. [3] They are mortar erosion deeper than a quarter inch, crumbling mortar between bricks, voids, hairline cracks, and cracks between the brick and the mortar. [3] Its repair intervals assume normal weathering, and it notes that sills, parapets, chimneys and copings take harder exposure and can need attention sooner. [3]

The second name is older than the confusion. BIA used tuck-pointing for years to describe one form of brick maintenance, and it says the meaning of the word shifts from region to region. [2] A repair every Chicago common brick building eventually needs ended up with two words, and neither tells you what your wall needs.

The word on the quote is not what decides the job

In short: What decides a mortar repair is the mix going back in, which has to be softer and more vapor permeable than the brick around it, not which of the two words the contractor wrote on the quote.

Tuckpointing vs repointing is a question about vocabulary. What decides your wall is the mix a tuckpointing service packs into the mortar joint. Both sources set the same rule. The National Park Service says new mortar has to be softer than the brick around it and more vapor permeable than the brick is. [1] BIA puts it in strength terms: a repointing mortar should be "similar to or weaker than the compressive strength of the original mortar". [2]

Get that backwards and the brick pays. A hard mix deforms less than the wall around it, so load concentrates on the thin strip of new work. [2] BIA says that stress "can lead to spalling of the brick face". [2] NPS photographed the same failure, where trapped moisture could not escape through the mortar and popped the faces off the bricks. [1]

More lime makes a softer, more forgiving mix, and portland cement makes a harder one. [1] That is why lime mortar sits at the soft end of the range. It also means the Type N vs Type S mortar comparison is the wrong one for this job. BIA's repointing set is Type N mortar, Type O mortar or Type K, with proportions following ASTM C270. [2] Type S is not on that list.

Color is the other half. BIA puts it on the sand, which is the most prevalent thing in the mix. [2] Mortar matching starts there, so matching old Chicago brick is a sand question before it is a pigment question.

What the standards actually define

In short: The Brick Industry Association reports that ASTM E 2260 treats tuckpointing and repointing as the same operation, while the National Park Service reserves tuckpointing for a decorative raised joint and calls the everyday use inaccurate.

What is tuckpointing depends on who is defining it, and there are two real answers. The Brick Industry Association reports that ASTM E 2260, the standard guide for repointing, "defines tuckpointing as synonymous with repointing". [2] That is the trade's own standards body treating the two words as one operation. The wording above comes from BIA's brief, which quotes the standard, rather than from ASTM directly. [2]

The same passage records a second, older sense of the word. [2] BIA describes a flush joint colored to match the brick. [2] Over it goes a thin contrasting strip, so the joint reads as a hairline. [2] The National Park Service reserves the word for something close but not identical. [1] It describes a raised joint, or a lime putty joint, laid over flush mortar joints, and calls the effect decorative. [1]

So two authorities keep the word for two different decorative joints, and neither one is the repair on your quote. NPS also lists tuck pointing as another name for repointing, and calls that use somewhat inaccurate. [1] Read together, that is one standard making the words synonyms and one authority calling the everyday use loose. Both are true. Neither describes two services you pick between.

What tuckpointing means on a Chicago quote

In short: Because the meaning of tuckpointing varies by region, the scope of work on your quote decides what you are buying, not the word at the top of it.

Here is the sentence that turns a vocabulary question into a money question. BIA says the meaning of tuckpointing "may vary by geographical region, leading to conflicts regarding job specifications and expected repairs". [2] Conflicts regarding job specifications is a trade association's way of saying two people signed the same paper expecting different work. That is what tuckpointing vs repointing costs you when it goes wrong.

So read the scope of work, not the heading. Any mortar joint repair Chicago quote should name the elevations, how much joint the crew cuts out, and how deep. BIA puts a number on the depth: removal should equal or exceed twice the joint thickness. [2] It should also say how the old mortar comes out, by hand or by grinding, and what mix goes back in.

None of that is settled by the word at the top. Two firms can both write tuckpointing and mean different jobs on the same Chicago common brick wall. A mortar joint tuckpointing quote that names the work is one you can compare. One that names only the service is not.

Tuckpointing vs repointing: where the difference is real

In short: There is a real tuckpointing, a decorative raised or lime putty joint, and there is a real repair that is not repointing at all, face grouting, and neither one is what most Chicago quotes mean.

The narrow sense of the word is not a sales invention. NPS keeps tuckpointing for a raised joint, or a lime putty joint, laid over flush mortar joints. [1] That is lime mortar work, not a modern repointing mix. It puts penciling beside it, a painted decorative line drawn over a joint in a contrasting color. [1] Both are ornament, and neither is the repair a Chicago wall needs when its joints are failing.

The other real distinction gets almost no airtime. BIA's maintenance guide says face grouting and repointing "are intended for different purposes and vary in performance". [3] Grouting fills hairline cracks at the surface, and the joints come out slightly wider and less textured because the aggregate stops showing. [3] Repointing takes the failed mortar out, and BIA recommends it for most joint deterioration. [3]

Both usages are alive, including on this site: our own fireplace tuckpointing and repointing page uses them together for one service. Neither page is wrong, and that is the point. When brick faces start spalling rather than joints eroding, the job changes. BIA puts widespread spalled brick among the conditions that call for professional investigation, so at that point you are buying masonry repair. [3]

What to check before you sign

In short: A quote worth signing names how much joint gets cut out, how deep, what mortar goes back in and how its color is matched, whichever word it puts at the top.

So: what should a mortar repair quote say? Six things, all of them drawn from what the trade sources tell contractors to do.

• Which joints, and how much of the wall. BIA says only defective joints need the work, and that sound original joints beat repointed ones. [2]
• How deep the old mortar comes out. BIA puts removal at two times the mortar joint thickness or more. [2]
• What mix goes back in. BIA's repointing set is Type N, O or K. [2]
• That the new mix stays weaker than the old. BIA wants strength similar to or weaker than the original, and NPS wants it softer and more vapor permeable than the brick. [1] [2]
• How they match the color. NPS says color and texture fall into place once the sand matches, so mortar matching starts with sand, and matching old Chicago brick follows from it. [1]
• Who does the work. BIA notes that an excellent bricklayer may lack repointing skill, and suggests judging craftsmanship on a demonstration area. [2]

A quote that names none of these is not cheaper. It is less specific, and that difference shows up on your wall rather than on the paperwork.

Tuckpointing and repointing questions Chicago homeowners ask

In short: Six questions, each answered in one or two sentences that survive being lifted out of the page on their own, and each one cited to a Research Log row.

Is there a real difference between tuckpointing vs repointing?

On most Chicago quotes, no. BIA reports that ASTM E 2260 makes the two words synonyms, and NPS calls the tuck pointing usage somewhat inaccurate. [2] [1]

Do I need tuckpointing or repointing?

You need whichever word the contractor uses for cutting out failed mortar and packing in new. Ask what mix goes back in and how deep the cut runs, and the label stops mattering. [2]

How long does tuckpointing last?

BIA puts a typical mortar joint past 25 years, against brick that can pass 100. [2] Exposure and the materials both move that number. [2]

Is tuckpointing decorative or structural?

Both senses are real. The narrow sense is a decorative joint laid over a flush one, and the everyday sense is the repair that keeps water out of the wall. [1] [2]

What is face grouting, and is it the same repair?

No. BIA says face grouting and repointing serve different purposes, and it recommends repointing for most mortar joint deterioration. [3]

What should a repointing quote include?

The elevations, the length and depth of the cut, the mix going back in, and how they match the color. [2] Anything less is hard to compare.

Definition bank

Entity cards

Getting the right repair on your building

In short: Ask what mortar is going back in and how deep the joints get cut, and you have asked the only two questions the label was ever standing in for.

Tuckpointing and repointing name the same work on almost every Chicago quote you will read. The word is not the decision. The decision is a mix that stays softer than your brick, cut to a depth BIA puts at twice the joint thickness, and colored by a sand that matches what is already in the wall. [2]

So bring the two questions to whoever quotes you, and see how quickly they answer. A contractor who can name the mix and the depth is telling you they have thought about your building. If you want that in writing, get a free quote from our team.

Sources

1. National Park Service, Preservation Brief 2, "Repointing Mortar Joints in Historic Masonry Buildings", Mack and Speweik, rev. 1998. https://www.nps.gov/orgs/1739/upload/preservation-brief-02-repointing.pdf
2. Brick Industry Association, Brick Brief, "Repointing (Tuckpointing) Brick Masonry", July 2005. https://www.gobrick.com/media/file/repointing-brick-masonry.pdf
3. Brick Industry Association, Technical Note 46, "Maintenance of Brick Masonry". https://www.gobrick.com/media/file/46-maintenance-of-brick-masonry.pdf