Chicagoland Masonry & Concrete
Masonry Waterproofing & Water Intrusion Repair in Chicagoland
Water entering through brick walls, masonry foundations, or failing masonry envelopes causes mold, structural damage, and ruined interiors. We find the source and stop it.
Masonry Water Intrusion Is Rarely What It Appears to Be
Homeowners in Oak Park, Hinsdale, and the older neighborhoods of La Grange and River Forest frequently discover water inside their homes, on interior walls, in basements, or around window openings, and assume the culprit is roof or window failures. In older masonry construction, the masonry envelope itself is often the primary entry point. Failed mortar joints, deteriorated coping stones, water-pooling window sills, failed through-wall flashing, and saturated masonry all contribute to water infiltration that appears indoors far from the actual entry point. Correct diagnosis is the starting point for effective waterproofing.
Water on Interior Masonry Walls
Interior wall moisture in older brick construction is most often caused by failed mortar joints on the exterior, the water travels horizontally through the wall cavity before appearing inside.
Basement Moisture Through Block Walls
Block foundation walls admit water through joint deterioration and block porosity. Interior crystalline waterproofing systems address this without exterior excavation.
Failed Through-Wall Flashing
Through-wall flashing at shelf angles, window heads, and lintel courses directs water out of the wall cavity. Failed flashing allows water to accumulate inside the wall.
Leaking Masonry Around Windows
Water entry at window perimeters is often caused by failed sill drip edges, caulk failures at the masonry-to-window interface, or missing end dam conditions.
Parapet Wall Failures
Masonry parapets on flat-roofed commercial and vintage residential buildings are notoriously prone to water entry through failed coping mortar and open joints.
What We Do & How We Do It
Masonry Diagnostic Assessment
We perform systematic moisture assessment before prescribing any waterproofing treatment, identifying primary entry points, contributing conditions, and the correct repair sequence.
Tuckpointing & Joint Sealing
The first and most critical waterproofing intervention for above-grade masonry is ensuring all mortar joints are sound and fully filled. Most above-grade water intrusion is solved by tuckpointing alone.
Penetrating Siloxane Water Repellents
After tuckpointing, we apply professional-grade penetrating siloxane sealers that waterproof the masonry matrix itself, dramatically reducing water absorption through the face of the brick and stone.
Crystalline Waterproofing Systems
For below-grade masonry and concrete block foundation walls, crystalline cementitious waterproofing systems applied to the interior surface react with moisture to form insoluble crystals that block water passage.
Flashing Repair & Replacement
Failed through-wall flashing, window head flashing, and coping/cap flashing is repaired or replaced as part of a comprehensive masonry waterproofing scope.
Address Water Intrusion Before Interior Damage Compounds
Water infiltration through masonry is a progressive problem, it grows worse each season as the entry points widen and the interior damage compounds. Mold remediation, interior wall reconstruction, and floor damage caused by chronic water intrusion almost always cost more than the masonry waterproofing that would have prevented them. Homeowners in Hinsdale, Burr Ridge, and Clarendon Hills who invest in masonry waterproofing as a proactive measure protect the long-term value and habitability of their homes.
Why Chicagoland Masonry & Concrete
With over 50 years of combined experience, we have been repairing and restoring masonry and concrete across Chicagoland. We do not sub out work, we do not cut corners on mortar specification, and we do not recommend more than what your project actually needs.
Get a Free EstimateServing Chicagoland homeowners with 50+ years combined experience
Crew-owner involvement on every project, no subcontractors
Detailed written estimates with clear scope and pricing
All work warrantied against defects in materials and workmanship
Fully licensed, bonded, and insured in Illinois
We work with historic brick and non-standard mortar mixes
Serving Chicagoland's Premier Communities
We serve homeowners and property managers throughout the Chicago metropolitan area.
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Ready to Get Started?
Call us or submit a project request online. We provide written estimates with clear scope and pricing across all of Chicagoland.