Required Tuckpointing Prep
We inspect the wall and repair compromised mortar joints before sealing. Sealing over bad mortar is a waste of your money.
Chicago Brick Masonry Sealing — 1,000+ Local Permits Managed
Masonry Waterproofing & Brick Wall Sealing in Chicago
Help reduce water absorption and freeze-thaw damage with a masonry assessment, needed repairs, and the right breathable brick-wall waterproofing approach.
Family Owned Since 1992 | Fully Licensed & Insured
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Waterproofing Starts With Repairing the Wall
Brick wall waterproofing works best after open mortar joints, damaged brick, cracked flashing, failed coping, and other water-entry points are identified. Applying a coating over unresolved masonry damage may not correct the underlying problem.
Freeze-Thaw Spalling
Protecting Chicago Brick from Freeze-Thaw Damage.
Brick is a naturally porous material. In Chicago, when wind-driven rain saturates the masonry, the moisture becomes trapped. During the winter, this trapped water freezes and expands, causing the faces of the bricks to pop off — a process known as spalling. Furthermore, applying a surface sealant over deteriorating mortar will not stop leaks.
At Star Tuckpointing, we focus on structural integrity first. We ensure all mortar joints are solid, performing necessary tuckpointing prep work before applying our deep-penetrating silane/siloxane brick sealers. This creates an invisible, breathable barrier that repels water without trapping internal moisture or altering the natural color of your building.
Technical guide
Researching Waterproofing Options?
We use industrial-grade sealants engineered for Chicago's severe freeze-thaw cycles. Understand the technical differences, active solids, and manufacturer lifespans of the products available for your property.
Technical Process
Our Brick Waterproofing Process
- 01
Inspect the wall for failed mortar, cracked or spalling brick, flashing issues, and visible water paths.
- 02
Complete needed masonry repair before applying water-repellent treatment.
- 03
Apply an appropriate penetrating, vapor-permeable treatment when conditions and substrate are suitable.
- 04
Review maintenance and any additional repair needs that affect long-term moisture management.
Our Standards
Our Brick Waterproofing Standards
Silane/Siloxane Technology
We exclusively use professional-grade penetrating water repellents that chemically bond with the brick substrate, rather than cheap film-forming acrylics that peel and trap moisture.
Breathable Protection
Our application allows water vapor to escape from the interior of the building while blocking exterior rain, preventing interior mold and structural rot.
No Discoloration
The sealant dries completely clear, leaving no shiny or cloudy residue on your historic Chicago brick.
Brick Wall Waterproofing
Brick Sealing
FAQ
Brick Wall Waterproofing in Chicago - Frequently Asked Questions
How much does it cost to waterproof a brick wall in Chicago?
Waterproofing a brick wall in Chicago typically costs $2 to $5 per square foot depending on wall height, access, and condition. Star Tuckpointing provides a free written estimate that separates sealing from any needed tuckpointing or flashing repairs.
How long does brick waterproofing last in Chicago?
A penetrating silane-siloxane sealer lasts 7 to 10 years on a Chicago exterior. South- and west-facing walls in full sun may need reapplication sooner. Star Tuckpointing uses commercial-grade sealers engineered for Midwest freeze-thaw conditions.
Should I seal my brick?
Sealing can protect the wall through the freeze-thaw season. The ideal window is April through November when temperatures stay above 40 degrees. Star Tuckpointing schedules sealing around the weather.
Does masonry waterproofing stop all water problems?
Waterproofing can help reduce water absorption through suitable brick and masonry surfaces, but it does not replace repairs to failed mortar, damaged brick, flashing, coping, or other building components. The first step is identifying where water is entering.
Is brick wall sealing the same as masonry waterproofing?
The terms are often used interchangeably, but the correct product and process depend on the wall. Masonry should generally use treatments that are compatible with the substrate and do not trap moisture inside the wall.
Should tuckpointing be completed before waterproofing?
If mortar joints are open or deteriorated, repairing them first is often necessary. Waterproofing should be part of an overall repair plan rather than a substitute for failed mortar-joint or brick repair.
Secure Your Masonry Today
Secure Your Masonry Today
Don't wait for spalling brick or interior water damage. Contact the family team at Star Tuckpointing for a straightforward, no-nonsense assessment of your exterior brick walls.
Peter Kleszcz, Owner
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