in partnership with
Crawl Space and Basement Waterproofing Products, Now in Philadelphia
Professional-grade vapor barriers, sump pumps, dehumidifiers, and drainage for homeowners and contractors across the Northeast. Pick up in Philadelphia or ship to your door.
Philadelphia pickup
Most orders ship within 24 hours
Specialist response within 24 hours
Contractor accounts available
One Northeast source for waterproofing supplies
Danbro has long supplied foundation contractors across the Northeast. Walder Foundation Products does the same for crawl space and basement waterproofing, with locations across Virginia and North Carolina. Together, we’re bringing Walder’s product line to Pennsylvania, New Jersey, Delaware, and New York, stocked and ready in Philadelphia.
How can we help?
Homeowners
Wet basement or musty crawl space? Start with the right products, or talk to a specialist about what your space needs.
DIYers
Buy the same vapor barriers, pumps, and dehumidifiers the pros use. Pick up in Philadelphia or have it shipped.
Contractors
Dedicated account manager, tiered contractor pricing, NET terms, and free training.
Shop Walder products
Top sellers from Walder’s catalog. Click through for full specs, options, and ordering on Walder’s site.
Vapor Barriers
The foundation of every crawl space encapsulation. Woven, reinforced liners that stop ground moisture.
ProSeal Liner 16 Mil Woven Vapor Barrier, 12′ x 100′
1,200 sq ft of woven vapor barrier. Won’t grow mold. 25-year warranty.
ProSeal Liner 12 Mil Woven Vapor Barrier, 12′ x 100′
1,200 sq ft. The go-to liner for standard crawl space encapsulation.
20 Mil Hybrid String/Woven Vapor Barrier, 12′ x 100′
The heavy-duty option. 1,200 sq ft with a lifetime warranty.
Sump Pumps and Basins
Move water out before it becomes a problem.
