Thorocoat & Elastomeric Coatings
Thorocoat, Thoroseal and elastomeric systems for concrete, block, stucco and masonry.
- 500+
- Violations Cleared
- 24hr
- Emergency Response
- 5
- NYC Boroughs Served
- 15+
- Years Experience
What We Do
Thorocoat and elastomeric coatings are heavy-bodied acrylic systems that bridge hairline cracks and give above-grade masonry a durable, uniform, waterproof finish. Thoroseal is the cementitious side of the family — it bonds into concrete and block to resist hydrostatic pressure below grade. Choosing correctly between them is most of the job.
These systems fail for two reasons, and neither is the product: wrong system for the exposure, or inadequate surface preparation. An elastomeric topcoat over a wall under hydrostatic pressure will blister off; a cementitious slurry on a moving crack will telegraph it straight through. We specify by condition — Thoroseal and crystalline slurries for below-grade concrete and block, Thorocoat and elastomeric membranes for above-grade masonry and stucco that needs crack-bridging and a finished appearance. Then we do the prep properly: clean, repair, profile, and prime, because a coating is only as good as what it is stuck to.
- Thorocoat heavy-bodied acrylic coating — above-grade masonry & stucco
- Thoroseal cementitious coating for concrete & block below grade
- Elastomeric membrane systems with hairline crack-bridging
- Crystalline & cementitious slurries for hydrostatic resistance
- Concrete, CMU block, stucco, parapet & retaining wall application
- Color-matched finish coats — waterproofing that looks intentional
Before & After — Thorocoat & Elastomeric Coatings
The same wall mid-application and complete: a hand-troweled cementitious coat over repaired brick, finished uniform and sealed against wind-driven rain. 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.
Substrate & Exposure Review
We test the surface, identify the exposure — above grade, below grade, hydrostatic — and specify the correct system rather than defaulting to one product.
Surface Preparation
Power washing, laitance removal, patching, and profiling. Coatings and slurries bond to sound, clean, correctly profiled substrate and nothing else.
Crack & Joint Treatment
Static cracks are routed and filled, moving joints get backer rod and sealant, and detail coats are applied at corners and terminations before any field coat.
System Application
Coats are applied at the specified wet-film thickness with documented coverage rates, so the warranty is real and the finish is uniform.
Common Questions
Other Waterproofing Services
Ready to get started?
Free estimates, fast responses, and zero-surprise pricing — every time.