Above-Grade Waterproofing for Baltimore Towers, Hospitals, Campuses & Waterfront Buildings
Commercial Waterproofing Contractors in Baltimore, MD
Water reaches Baltimore buildings from every direction. Nor’easters drive rain into curtain walls and masonry for hours, summer thunderstorms dump inches in an afternoon, and tropical storms moving up the Chesapeake have pushed water into Fells Point and the harbor more than once, including Isabel in 2003. Moist, brackish air near the waterfront keeps walls damp, winters freeze any water already in the joints, and humid summers wear out the sealants meant to keep it out.
Presto Restoration has more than 25 years of experience in above-grade commercial waterproofing. In Baltimore, our crews reseal expansion joints, window perimeters and curtain walls, coat parapets and walls with silicone and elastomeric systems and protect masonry with breathable repellents on office towers, hospitals, university buildings, hotels and condominiums. We also make our own restoration products, including Glass Defender for glass and Leach Stop for precast concrete.
OUR COMMERCIAL WATERPROOFING SERVICES IN BALTIMORE
From a single leaking window to a full envelope program, we handle every type of above-grade waterproofing on Baltimore commercial buildings.
Core Waterproofing Services
Expansion and control joints let concrete and masonry buildings move through hot summers and cold winters. As their sealant ages, it tears, and rain and snowmelt pour into the structure. We remove failed joint materials, rebuild damaged edges and install sealants or preformed joint systems sized for the movement, then rout and seal active cracks.
Window perimeters cause many of the leaks in Baltimore offices, hospitals and apartments. Years of sun and storm-driven rain crack the sealant or pull it away from the frame. We replace perimeter seals, reseal mullion joints and fix gaskets, and stained glass can be restored and protected with Glass Defender.
Ledges, parapets, balconies and setbacks hold water and snow, and freeze-thaw cracks them open. We apply high-solids silicone coatings that tolerate ponding water, stay flexible in the cold and resist UV, often directly over existing surfaces.
Many older Baltimore office buildings rely on dry glazing gaskets that have shrunk and hardened. Once they pull away from the glass, rain gets into the frame. Wet glazing adds a continuous silicone seal between glass and frame, stopping leaks without replacing the curtain wall.
Concrete, stucco and EIFS walls develop hairline cracks as they age, and each crack lets water in. Elastomeric coatings span those cracks and flex as the wall moves, applied at full thickness after larger cracks are repaired.
Brick, block, stone and precast absorb water, and near the harbor that water can carry salt. Breathable water repellents cut absorption while letting moisture escape, applied after cracks and open joints are repaired.
Specialized Restoration-Waterproofing
Beyond sealing, Presto restores the glass, metal, stone and concrete beneath, using products we make in-house, so cleaning, repair and waterproofing are one coordinated project.
Precast panels leach natural salts that leave white streaks as water dries, and winter salt and harbor moisture make it worse. Leach Stop is our treatment designed to reduce this. We clean off deposits, treat the panels and reseal the joints.
Metal panels, Alucobond cladding, coping and curtain wall frames rely on sealant at every joint, and near the waterfront those joints also face corrosive air. We replace failed sealants with products made for metal movement and reseal every lap and fastener.
Our Commercial Waterproofing Process in Baltimore
Each Baltimore waterproofing project moves through five steps, and you see our findings and the cost before work starts.
Building Envelope Inspection
We review joints, glazing, coatings, flashings and penetrations on every elevation.
Diagnostic Testing
Water testing and moisture readings confirm the real entry point before repairs are planned.
Scope & Specification
We choose products rated for Mid-Atlantic weather and harbor exposure and write a clear scope.
Waterproofing Installation
Trained crews install each system to manufacturer requirements in suitable weather.
Project Closeout & Warranty
You receive photos, product data and warranty documents.
Talk to Presto About Waterproofing Your Baltimore Building
Leaks after storms, damp walls or caulking that is cracking and separating? Call us or request a quote, and our team will respond to discuss your Baltimore building.
Why Baltimore Property Managers Choose Presto for Commercial Waterproofing
With more than 25 years of work across the country, including waterfront and four-season cities, Presto knows which sealants hold up to Baltimore’s freezing winters, humid summers and harbor air.
Our Local Baltimore, MD Support Network
Waterproofing lasts longest when the building gets steady care the rest of the year. Presto connects Baltimore owners with a local support network for that everyday upkeep.
For routine upkeep and everyday facility support, owners can also contact our sister companies:
Building Restoration Baltimore: Hands-on exterior repairs for Baltimore buildings.
Building Maintenance Baltimore: Scheduled maintenance that keeps small problems from becoming leaks.
Building Services Baltimore: General commercial building support for Baltimore properties.
Recent Waterproofing Projects in Maryland
MARYLAND PORTFOLIO HIGHLIGHTS
Browse Presto’s facade waterproofing and caulking work in Baltimore.
Baltimore Commercial Waterproofing FAQs
How often should sealants be replaced on a Baltimore building?
Most commercial sealants around Baltimore last about 10 to 15 years. Joints on sunny or harbor-facing elevations usually fail first, so a yearly look is worthwhile.
What is the difference between waterproofing and water damage repair?
Waterproofing stops water at the exterior. Water damage repair fixes what water has already harmed inside. We focus on stopping the water so interior repairs do not have to be repeated.
Can waterproofing be done while the building is occupied?
Yes. Almost all of our work is done from the outside, so occupants stay in place, and noisy tasks are scheduled around operations.
What is the difference between elastomeric coatings and water repellents?
Elastomeric coatings form a flexible film that bridges cracks and changes the wall’s look. Water repellents soak into masonry and block water invisibly. Historic brick usually needs a breathable repellent.
How do I know if waterproofing can wait another year?
Leaks during storms, damp walls or split caulking are reasons to act now. If sealants are still flexible and nothing is leaking, planned replacement over the next few seasons is usually fine.
Can waterproofing work be done in a Maryland winter?
Most sealants and coatings need about 40 degrees Fahrenheit or warmer to cure, so the main season runs spring through late fall, with emergency repairs possible in winter.
Other Baltimore Building Restoration Services
Keep Water Out of Your Baltimore Building
One failed joint left through a season of nor’easters can soak a whole section of wall. Tell us what you are noticing, and we will help you get it sealed.
Call us today at 1-800-785-9927 or click Request A Quote.