Masonry & Tuckpointing in Chicago, Illinois
Chicago is a brick city by law — and almost all of that brick was laid before 1930, in a soft lime mortar the city's own authorities beg you not to replace with Portland cement. Get matched with masons who know the difference.
In Chicago, brick is the law
Most cities are made of masonry by habit. Chicago is made of it by ordinance.
Before 1871, only the downtown business district sat inside Chicago's "fire limits," where new buildings had to be brick. Then the Great Chicago Fire of 1871 took the rest of the argument. After a second major fire in 1874, the city passed a citywide ordinance in July 1874 banning new wood buildings altogether — new construction had to be brick, stone, marble or limestone.
That single legal decision is why this city looks and ages the way it does. Chicago did not drift toward masonry. It was ordered into it. And the housing stock that followed is masonry to its core.
The mortar mistake the whole city warns you about
Here is the one thing that matters more than anything else on a Chicago building — and unusually, you do not have to take a contractor's word for it, because the city's own institutions say it out loud.
The Historic Chicago Greystone Initiative tells owners plainly: do not repoint historic masonry with Portland cement, and do not use a mortar stronger than Type O (350 psi), because too-strong mortar traps moisture and destroys the masonry it was supposed to protect.
The Chicago Bungalow Association says the same thing in plainer language: old brick is softer than new brick, so the repointing mortar should have a higher lime content. Hard Portland-cement mortar forces moisture into the brick instead of letting it escape. First you get efflorescence — the white salt bloom on the wall. Then you get spalling, where the face of the brick pops off and exposes a softer center that keeps deteriorating.
Two independent Chicago authorities, one message: soft brick needs soft mortar. A joint can always be redone. A spalled brick face cannot, because that brick is no longer manufactured. This is why the cheapest tuckpointing quote in Chicago is frequently the most expensive thing you can do to your building — and why the damage does not show for two or three years, long after the crew is gone.
What is actually standing on these blocks
Four building types cover most of Chicago's masonry, and each one changes the job.
The Chicago bungalow
Brick, one and a half stories over a full basement, low-pitched hipped roof with wide overhangs, built 1910 to the mid-1930s. About 80,000 of them, ringing the city in the Bungalow Belt. Watch the chimney and the front face.
The greystone
A Bedford limestone facade over brick, 1890 to 1930, from workers cottages to mansions. About 30,000 remain, clustered along Logan, Douglas, Grand and King Drive. Limestone fails differently — it sugars and delaminates.
The two- and three-flat
Flat-roofed brick with a front bay, face brick and limestone trim on the street, cheaper Chicago common brick on the sides and back. More than a quarter of the city's housing. The parapet goes first.
The workers cottage
One of Chicago's oldest home types, built in wood from the 1830s and in brick after the 1871 fire. Small, long, steep-roofed — and where it is brick, it is carrying the softest, oldest mortar in the city.
The through-line: almost all of it predates 1930, which means almost all of it is carrying soft, high-lime mortar. That is the fact that governs how any of it should be repointed.
The face brick and the common brick are not the same brick
One detail that separates a Chicago mason from a generalist: on a two-flat, a greystone or many bungalows, the street-facing elevation is the good brick — selected face brick, often with limestone detailing — while the sides and rear are Chicago common brick, softer and cheaper. They do not take the same mortar, the same cleaning, or the same pressure. A crew that treats the whole building as one wall will get the front elevation — the one everyone sees — wrong.
Landmarks change the sequence
Chicago has 459 designated landmarks: 388 individual landmarks and 62 landmark districts, from the Astor Street and Gold Coast districts on the Near North Side to the Old Town Triangle and the Ridge district in Beverly.
If your building is a designated landmark or sits in a landmark district, exterior masonry work visible from the street does not just need a mason — it needs review. The Commission on Chicago Landmarks reviews proposed alterations to landmarks and district properties as part of the permit process, and tuckpointing, brick and stone repair and cornice restoration are checked for compatible materials, mortar and joint profiles. The Commission reviews more than 1,800 landmark permits a year, most approved in a single day; routine maintenance and minor repairs need no permit at all.
On a landmark, matching the historic mortar is not just good practice — it is what gets the work approved. The same lime-based mix the Greystone Initiative and the Bungalow Association recommend is, on a landmark facade, also the path of least resistance through review. A mason who has done this in Chicago before will raise it without being asked.
Permits and licensing, briefly
For most non-landmark work, Chicago runs tuckpointing and routine masonry repair through its Easy Permit Process, which covers up to 50,000 square feet, requires a licensed contractor, needs no architectural drawings and is often issued the same day. Small residential jobs on one-to-three-flat buildings are commonly treated as routine maintenance — though that residential exemption is contractor lore rather than something we will state as settled, so confirm current rules with the Department of Buildings.
Chicago also licenses its mason contractors through the Department of Buildings, in three classes: Class A is the full license (both the brick and concrete exams passed), the B Card is a brick masonry contractor, and the C Card is concrete. You can verify any mason on the city's public list at webapps1.chicago.gov/licensedcontractors/mason — and checking that license is part of what a matching service is for.
The masonry work Chicago actually needs
Describe the job once and we match you with a mason who does that exact work. In Chicago that usually means one of these:
- Tuckpointing & lime-mortar repointing — the core job on any pre-1930 bungalow, greystone, two-flat or cottage.
- Brick repair & replacement — spalled or missing brick, matched to face vs common brick and sourced from salvage where it counts.
- Greystone & limestone restoration — sugaring, delamination and cleaning of Bedford limestone facades.
- Chimney repair, rebuild, relining & tuckpointing — the hardest-working masonry on any Chicago roof.
- Lintel replacement — rusting steel lintels over windows and openings, lifting the brick above them.
- Parapet wall repair — the first thing to fail on a flat-roofed two-flat or greystone.
- Caulking, waterproofing & power washing — sealing joints, breathable water repellents, and low-pressure cleaning that does not erode soft historic brick.
Signs your Chicago masonry needs a look
- Mortar you can rake out with a house key, or that falls away as sand
- Joints noticeably recessed behind the face of the brick
- White efflorescence on the wall — often a sign it was already repointed with mortar too hard for the brick
- Stair-step cracking following the joints
- Spalling — brick faces flaking or popping off. Water is already getting in and freezing
- On a greystone: a sugary or chalky limestone surface, or thin layers lifting off
- On a two-flat: a bowed or crumbling parapet above the roofline
- On any chimney: open joints, a cracked crown, or a stack that is not plumb
Any of these on a wall built before 1930 — which in Chicago is most walls — is worth attention before another freeze-thaw season. Chicago-area winters do the damage; the mortar just tells you first.
Chicago and the surrounding area
Chicago is the masonry heart of the region, and the same lime-mortar problem runs out through every suburb around it. If your building is in a landmark district, a greystone, or a full estate facade, start with our greystone, landmark and estate work, see every area we serve across Chicagoland, or compare the neighboring North Shore villages like Evanston and Skokie.
Questions Chicago owners ask
Why is Chicago such a brick and masonry city?
Because the city legislated itself that way. Before 1871 only downtown Chicago was under fire limits requiring new brick construction. After the Great Chicago Fire of 1871, and following another major fire in 1874, the city passed a citywide ordinance in July 1874 banning new wood buildings; new construction had to use brick, stone, marble or limestone. That is why Chicago's housing stock is masonry to its core - roughly 80,000 brick bungalows and an estimated 30,000 limestone greystones still stand, most of them now old enough to need repointing.
Why should I never let a mason repoint my Chicago bungalow or greystone with Portland cement?
Because the city's own authorities on these buildings tell you not to. The Historic Chicago Greystone Initiative says do not repoint historic masonry with Portland cement and do not use mortar stronger than Type O, which is 350 psi, because too-strong mortar traps moisture and deteriorates the masonry. The Chicago Bungalow Association says the same thing in plainer words: old brick is softer than new brick, so the repointing mortar should have a higher lime content, and hard Portland-cement mortar forces moisture into the brick. The result is efflorescence, then spalling, where the face of the brick pops off and exposes a softer center that keeps deteriorating. Mortar can be redone. A spalled brick face cannot. This is the single most important thing to get right on a pre-1930 Chicago building.
What is a Chicago greystone and does it need special care?
A greystone is a masonry building with a front facade of Bedford limestone - quarried in south-central Indiana - built over brick, popular from 1890 to 1930 in everything from workers cottages and two-flats to row houses and mansions. An estimated 30,000 remain in Chicago, concentrated in a Greystone Belt roughly three to seven miles from the Loop and along boulevards like Logan, Douglas, Grand and King Drive. Yes, it needs special care: limestone does not fail like brick. It sugars, spalls and delaminates in thin layers, and the same too-hard mortar that spalls brick drives water and salt into the stone. Repointing and cleaning a greystone facade is a restoration trade, not a grinder-and-caulk job.
How do I know if I need a permit to tuckpoint in Chicago?
Chicago runs tuckpointing and routine masonry repair through its Easy Permit Process, which covers up to 50,000 square feet of work, requires a licensed contractor, needs no architectural drawings and is often issued the same day. Small residential jobs on one-to-three-flat buildings are commonly treated as routine maintenance, but that residential exemption is contractor-reported rather than something we can confirm, so verify current requirements with the Chicago Department of Buildings. The bigger permit question is landmarks - see the next answer.
Do I need approval to tuckpoint a Chicago landmark or a building in a landmark district?
Very likely, if the work is visible from the street. As of 2024 Chicago has 459 designated landmarks - 388 individual landmarks and 62 landmark districts. The Commission on Chicago Landmarks reviews proposed alterations to individual landmarks and to properties in landmark districts as part of the permit-review process. Exterior masonry work including tuckpointing, brick and stone repair and cornice restoration on a street-visible elevation is reviewed to make sure the materials, mortar and joint profiles are compatible. The Commission reviews more than 1,800 landmark permits a year, most approved in a single day, and routine maintenance or minor repairs do not require a building permit. The practical point: on a landmark, matching the historic mortar is not just good practice, it is what gets your work approved.
Does a Chicago mason need a license?
Yes. Chicago licenses mason contractors through the Department of Buildings for work in stone, concrete, brick and similar materials. There are three classes based on the exams passed: Class A is the full license, passing both the brick and concrete masonry exams; the B Card is a brick masonry contractor; the C Card is a concrete masonry contractor. You can look up any licensed mason on the city's public list at webapps1.chicago.gov/licensedcontractors/mason. When we match you with a Chicago mason, that verification is part of the point.
What masonry does Chicago actually have, by building type?
Four types cover most of it. The Chicago bungalow: brick, 1.5 stories over a full basement, low-pitched hipped roof, built 1910 to the mid-1930s, about 80,000 of them and nearly a third of the city's single-family housing. The greystone: a Bedford limestone facade over brick, built 1890 to 1930, about 30,000 of them. The two-flat and three-flat: flat-roofed brick with a front bay window, face brick and limestone detail on the street side and cheaper Chicago common brick on the sides and rear, together more than a quarter of the city's housing. And the workers cottage, one of Chicago's oldest home types, built in wood from the 1830s and in brick after the 1871 fire. Almost all of it predates 1930, which means almost all of it is carrying soft lime mortar.
How often does Chicago brick need tuckpointing?
Brick in this climate generally runs 25 to 30 years between repointings, but that is an average, not a schedule, and exposure decides it. A south or west elevation takes the driven rain and freeze-thaw; a parapet or a chimney above the roofline takes weather from every direction at once; a wall along a busy street takes traffic spray and road salt. On a Chicago two-flat the parapet and the chimney usually fail first; on a bungalow, the chimney and the front face. Freeze-thaw cycling, not age alone, is what destroys the mortar - water gets into a failing joint, freezes, expands and opens it wider for the next winter. Any mason quoting a whole-building number without walking every elevation is guessing.
How do I know if a mason is right for my Chicago building?
Ask which mortar mix, matched to which brick or stone, at what hardness - and listen for whether the answer references your existing mortar and a lime-based mix rather than a standard bag of Portland. On a greystone, ask how they handle a sugaring or delaminating limestone face. On a landmark or a building in a landmark district, ask whether they have been through Commission on Chicago Landmarks permit review. Ask about the joint profile, where salvage brick would come from, and who does the sample panel. A mason who answers only with a price per square foot is quoting a different job than the one your building needs.
Is MasonryPros.us a masonry contractor?
No. MasonryPros.us is a free matching service operated by Media Express LLC, a Chicago digital agency founded in 1995. We do not perform masonry work and we have no Chicago storefront. You describe the job once, and we match you with local licensed contractors who do that specific type of work. There is no obligation to hire.
What are the warning signs my Chicago masonry needs attention?
Mortar you can rake out with a house key or that falls away as sand. Joints recessed behind the face of the brick. White efflorescence on the wall, which usually means the wall was repointed with mortar too hard for the brick. Stair-step cracking that follows the joints. Brick faces flaking or popping off - that is spalling, and it means water is already getting in and freezing. On a greystone, a sugary or chalky limestone surface, or thin layers lifting off. On a two-flat, a bowed or crumbling parapet above the roofline. And on any chimney, open joints, a cracked crown or a leaning stack. Any of these on a pre-1930 wall is worth a look before another freeze-thaw season.