Waterproofing & Sealing
Professional waterproofing and sealing services for masonry walls, foundations, and structures.
What is Waterproofing & Sealing?
Water is the primary enemy of masonry, causing deterioration, staining, and structural damage over time. Professional waterproofing and sealing services protect masonry investments and prevent costly future repairs.
Waterproofing solutions include breathable sealers that allow moisture vapor to escape while blocking liquid water, penetrating sealers that protect from within, and membrane systems for below-grade applications. The right solution depends on the masonry type, exposure conditions, and aesthetic requirements.
Effective waterproofing addresses water entry points including mortar joints, cracks, porous masonry units, and flashing failures. Comprehensive waterproofing often combines sealers with drainage improvements and repair of existing damage.
Common Issues We Address
Process Overview
How professional contractors handle waterproofing & sealing from start to finish
Diagnose moisture paths
1 visitInspect for cracks, failed joints, flashing gaps, and vapor drive to choose the right system.
Prep surface
0.5-1 dayClean masonry, repair joints/cracks, and mask adjacent finishes for even absorption.
Apply sealer or membrane
0.5-1 daySpray/roll penetrating sealer or install membrane/drainage for below-grade areas.
Detail flashings & joints
0.5 daySeal penetrations, reset counterflashing, and address copings/sills where water enters.
Test & handoff
Perform spot water test, clean up, and provide reapplication schedule.
Cost Factors
What typically drives the price of waterproofing & sealing
Treatment type
Penetrating sealers cost less than membrane systems or below-grade drainage.
$1.50 - $8 per sq ftSurface condition
Crack/joint repairs and cleaning add prep cost before sealing.
Height & access
Lift/scaffold work for multi-story façades increases labor and equipment.
+$200 - $1,200Below-grade scope
Excavation, drainage board, and membranes around foundations are the largest cost drivers.
Reapplication frequency
Budget for 5-10 year maintenance depending on exposure and product used.