Exterior Wall & Masonry Waterproofing
Brick, brownstone and stucco waterproofing, plus repointing that fixes the real leak path.
- 500+
- Violations Cleared
- 24hr
- Emergency Response
- 5
- NYC Boroughs Served
- 15+
- Years Experience
What We Do
Wind-driven rain does not soak through sound brick — it gets in through open mortar joints, cracked parapets, failed sealant, and hairline stucco cracks. We find the actual path, repoint or repair it, then apply a breathable repellent that keeps water out while still letting the wall dry to the outside.
The most common mistake on a leaking masonry facade is sealing it with a film-forming coating. Brick and brownstone need to breathe; trap moisture inside the wall and you get spalling, efflorescence, and freeze-thaw damage that costs far more than the original leak. Our approach is repair-first: repoint deteriorated joints to full depth with mortar matched to the existing masonry, rebuild what is beyond repair, then treat the wall with a silane or siloxane penetrating repellent. On buildings six stories and up this work often overlaps with Local Law 11 scope, and we can coordinate both so you are not paying for scaffolding twice.
- Breathable silane & siloxane penetrating water repellents
- Brick repointing & tuckpointing — full-depth, matched mortar
- Brownstone repointing, restoration & breathable sealing
- Stucco crack repair, delamination patching & recoating
- Full envelope treatment — lintels, shelf angles & flashing
- Coordinated with Local Law 11 facade scope where it applies
Before & After — Exterior Wall & Masonry Waterproofing
A Bronx party wall with spalled brick, failed coal-tar parging and graffiti, cut back to sound masonry, repaired and finished with a breathable cementitious coating. Drag the slider to compare.
What Every ECO World Job Includes
These aren't extras — they're the baseline on every project we take on.
Fully Licensed & Insured
Every crew member is NYC-licensed in their trade and covered by $2M general liability and workers' comp.
Permit-First Policy
We file all required DOB permits before work begins — no shortcuts that create violations down the road.
On-Time Completion
We set realistic schedules and stick to them. You'll get a detailed timeline before we lift a tool.
Dedicated Point of Contact
One project manager owns your job from quote to closeout — no being bounced between crews.
Written Warranty
All trade work carries a minimum 1-year labor warranty. Manufacturer material warranties transferred to you.
Clean Job Sites
We protect your property daily — floor coverings, dust barriers, and thorough cleanup at end of every shift.
Our Step-by-Step Process
Clear and stress-free from first call to final sign-off.
Facade Survey & Leak Trace
We inspect the elevation close-up, identify every open joint, crack, and failed sealant line, and correlate them with where water is appearing inside.
Masonry Repair
Deteriorated joints are cut out and repointed to full depth with matched mortar; spalled brick and stone are replaced or dutchman-repaired.
Sealant & Flashing
We reseal windows, expansion joints, and penetrations, and correct flashing details that were shedding water into the wall instead of out of it.
Repellent Application
A breathable penetrating repellent is applied at the specified rate — typically two saturating passes — so the wall shrugs off rain but still dries out.
Common Questions
Other Waterproofing Services
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Free estimates, fast responses, and zero-surprise pricing — every time.