What are the opening hours?

Monday 7am - 9pm Tuesday 7am - 9pm Wednesday 7am - 9pm Thursday 7am - 9pm Friday 7am - 9pm Saturday 8:30am - 9pm Sunday 8:30am - 9pm

SJ Waterproofing LLC

SJ Waterproofing is one of South Jersey's oldest and most reliable Waterproofing Companies. All work is owner supervised. No subcontractors.

With more than 12 decades under our belt, we can correct any type of water problems, interior and/or exterior structural problems using the latest and most modern technology available! There is no salesman, you deal directly with the owner. SJ Waterproofing specializes in Waterproofing, Foundation Repair, Historical Restoration, Basement Windows, Bilco Doors, Mold & Mildew treatment, Termite Repairs, Basement Finishing & Remodeling. Call today to get your free quote!

05/16/2026

Teaching the next generation of the SJ Family how to pour concrete.
Call us for a free and honest quote on your next concrete project. 856-275-9093

05/01/2026

Are your foundation walls cracked and bowed? Shown is one of the few options used to correct a failing foundation wall. 4 inch steel channel is bolted to floor joist over head and concrete is poured at base to lock everything in and prevent further inward movement. Give us a call to get a free and honest estimate on your repair!!
856-275-9093

04/02/2026

Pictured: Footings, block foundation, drain system and new concrete floor installed in crawlspace.
Not pictured: previous owners eroded crawlspace foundation.

Get an honest and professional quote for all of your structural and waterproofing needs.

856-275-9093

03/27/2026

Look at the difference sealing the walls, epoxying the floor, and new basement windows can make.
Call us for your free quote! 856-275-9093

03/21/2026

Cross ventilation is a big key factor in keeping your crawlspace dry and mold free. Give us a call for a free quote to get automatic crawl space vents installed at your property.