Winnetka's Georgian, Colonial Revival, and Tudor homes were built with soft Chicago common brick between the 1920s and 1960s. That brick spalls - brick faces crack and pop off - primarily from lake-effect freeze-thaw cycling and from the legacy of hard Portland cement repairs that trapped moisture inside the brick. Delta Tuckpointing replaces damaged brick units with salvage-matched material that weathers to blend with the surrounding original wall, 8 miles from Winnetka.
Spalled and cracked brick on Winnetka's Georgian and Tudor homes
Winnetka's grand Georgians, Colonial Revivals, and Tudor estates were built predominantly between the 1920s and 1960s using soft Chicago common brick - a handmade, irregularly fired material with a warm, slightly textured face that defines the character of this housing stock. Brick repair here means replacing damaged brick units themselves: the cracked, spalled, or displaced bricks that tuckpointing cannot address because the damage is in the unit, not the joint. Removing a failing brick, sourcing a period-accurate replacement, and setting it with matched mortar is the craft at the center of brick repair work on Winnetka homes.
The median Winnetka home was built around 1942. That means the original brick units have endured over 80 years of Chicago winters. Soft common brick was never as durable as the harder machine-pressed brick manufactured after the mid-20th century, and in Winnetka's lakefront position - with sustained northeast winds and direct Lake Michigan freeze-thaw exposure - that softer material has reached the age where individual bricks begin to fail.
How Winnetka brick fails
Spalling is the dominant failure mode on Winnetka pre-war brick. Moisture enters micro-cracks in the brick face, freezes overnight, expands approximately 9 percent by volume, and forces the outer layer off. Lake Michigan's proximity drives this: east-facing facades on Sheridan Road and neighboring streets cycle through more freeze-thaw events each winter than any protected inland wall. The visible result is brick faces that have cracked parallel to the wall plane and begun to separate in flakes or chunks.
The second major cause of brick failure in Winnetka is the legacy of incorrect Portland cement repointing done in the 1970s and 1980s. Hard cement mortar does not flex with soft brick, and it blocks the moisture vapor path the original lime system relied on. Water trapped inside the brick freezes, and the expansion is absorbed by the brick unit rather than escaping through the joint. The brick fails while the joint looks intact. On many Winnetka homes, the worst spalling appears at the joint line precisely because the hard joint held while the brick beside it absorbed the freeze-thaw stress.
Displaced or pushed-out bricks are a third failure type seen on Winnetka homes, typically tied to lintel corrosion above windows and doors. When steel lintels rust, the expanding metal pushes the course above it outward. Individual bricks shift and open gaps that allow water into the wall cavity.
Matching Winnetka's brick
Finding replacement brick for a Winnetka home is the most difficult part of the repair. Soft Chicago common brick has not been manufactured since production ended decades ago. The replacement material must come from salvage yards that collect demolished pre-war Chicago-area buildings. The correct salvage brick must match the original in three dimensions: color (which on common brick can range from buff to deep red to a mottled blend), nominal size (older brick is often slightly larger than modern standard sizes), and texture (hand-pressed brick has a rough, matte face that machine-pressed brick from later decades cannot replicate).
Using the wrong replacement brick - modern, hard, face brick ordered from a supplier - is worse than leaving the damaged unit in place. A brick that is harder than the surrounding originals transfers stress into those originals, accelerating their failure. It also reads visually as a patch, which destroys the character of a Winnetka Georgian or Tudor facade that has been standing for a century.
Winnetka properties that appear on the National Register of Historic Places require period-accurate replacement material. We source from salvage yards and assess each replacement brick's size, tone, and surface character against the existing wall before installation.
Winnetka brick repair: what it costs and how the work gets done
Single brick replacement runs $50 to $150 per brick in the Chicagoland market. Section repair covering 10 to 30 bricks runs $500 to $2,000. Lintel replacement with brick reset runs $2,000 to $5,000. Exact pricing requires an on-site assessment - every project gets a free written estimate before any work begins.
An illustrative Winnetka project: a 1938 Georgian Colonial near Sheridan Road had 14 spalled bricks on the east-facing facade, concentrated at the third and fourth courses where freeze-thaw damage was most severe. The repair required sourcing salvage soft common brick from a pre-war Chicago demolition and setting each unit with custom-matched Type N lime mortar. After one season of weathering, the replaced bricks were indistinguishable from the surrounding originals. Delta is 8 miles from Winnetka and reaches the village in about 15 minutes from our Libertyville office.
Permits and Building Requirements in Winnetka
Masonry permit requirements vary by municipality. Here is what currently applies in Winnetka:
Winnetka requires permits for chimney rebuilds, structural masonry alterations, and any work affecting the building envelope. The village has an Architectural Review Committee that oversees exterior changes on many properties.
Delta confirms all applicable requirements with the Winnetka building department and handles the permit process as part of every project where permits are required.