Waterproof Foundation Coatingsin Baltimore, MD
Waterproof coatings applied to foundation walls provide an additional layer of protection against moisture penetration — used as a standalone treatment or as part of a comprehensive waterproofing system.
Get a Free InspectionCoatings as Part of a Complete System
Waterproof coatings are not a standalone solution for significant water intrusion — they're most effective as part of a layered approach that addresses water at multiple points. Applied to interior or exterior foundation walls, they reduce moisture vapor transmission and seal minor surface porosity that allows dampness to seep through.
On new foundation work or following crack injection repairs, coatings provide an additional moisture barrier that extends the life of the repair and further reduces the risk of moisture-related deterioration inside the wall assembly.
Types of Waterproof Coatings We Apply
Crystalline Waterproofing
A cement-based coating that penetrates the concrete matrix and forms insoluble crystals within the pores — self-sealing even minor future cracks as moisture activates the crystals.
Elastomeric Coatings
Flexible, rubber-like coatings that bridge minor surface cracks and provide a continuous waterproof membrane. Remains effective even as the foundation undergoes minor seasonal movement.
Bituminous Dampproofing
Asphalt-based coatings applied to exterior foundation walls below grade — reduces water vapor transmission through the wall and protects against soil contact.
Hydraulic Cement Application
Fast-setting hydraulic cement that stops active leaks in seconds — used to plug active water entry points at cracks, pipe penetrations, and tie holes before applying a waterproof coating.
Block Wall Parging
A cement-based scratch coat applied to the interior face of block foundation walls fills surface voids and provides a uniform substrate for the waterproof coating.
FAQs
Can a waterproof coating fix my wet basement?
Coatings reduce moisture vapor transmission but cannot withstand significant hydrostatic pressure alone. If water is actively entering your basement, a drainage system is typically the right primary solution.
How long do waterproof coatings last?
Quality coatings applied to properly prepared surfaces last 10–15 years or more. Crystalline coatings become a permanent part of the concrete and last indefinitely.
Do I need to prepare the wall surface before coating?
Yes — proper surface preparation is critical. We clean, repair cracks, and profile the surface to ensure adhesion before any coating is applied.
Can I paint over a waterproof coating?
Some coatings accept paint; others don't. We advise you on the appropriate topcoat if a painted finish is desired.
Add Another Layer of Protection
Free inspection — we'll recommend the right coating for your situation.