Interior Basement Waterproofing Services
Stop Water Where It Strikes – From the Inside Out. Protect your New Jersey home with our advanced interior waterproofing solutions.
Advanced Interior Waterproofing Solutions
At A1 Everlast, we provide advanced interior waterproofing solutions designed to protect your basement from moisture, flooding, and structural deterioration. Serving homeowners across Northern and Central New Jersey, we deliver time-tested systems that stop water intrusion at its entry point, enhancing your home's safety, value, and comfort.
Non-Invasive Installation
No need to excavate outside your home
Year-Round Service Availability
Installed regardless of weather conditions
Quick Turnaround
Most systems completed in 1-3 days
Why Choose Interior Waterproofing?
When exterior excavation is impractical or budget-restrictive, interior waterproofing becomes the ideal solution. Our systems are installed inside your basement walls or floors to collect and redirect water safely away from your home, preventing costly damage and health hazards like mold and mildew.
Finished Basements
Ideal for homes with finished or semi-finished basements that need protection
High Water Tables
Perfect for properties with high groundwater tables causing persistent moisture
Prior Flooding
Effective for structures with prior basement flooding or seepage issues
Older Foundations
Suitable for older foundations with settling or hairline cracks
Our Interior Waterproofing Process
We follow a comprehensive 6-step process to ensure your basement is protected from water damage for years to come.
Comprehensive Inspection
Crack Sealing
Drainage System
Sump Pump Integration
Moisture Barrier
Dehumidification
Comprehensive Interior Inspection
We conduct a full moisture audit of your basement — checking for hydrostatic pressure, cracks, water stains, humidity levels, and drainage deficiencies. This allows us to develop a custom waterproofing plan based on the unique conditions of your property.
Our Recent Projects
Browse through our gallery of completed interior waterproofing projects across New Jersey.
Basement Waterproofing
Bergen County, NJ
Sump Pump Installation
Morris County, NJ
French Drain System
Essex County, NJ
Vapor Barrier Installation
Union County, NJ
Crack Repair
Passaic County, NJ
Complete Basement System
Somerset County, NJ
Advantages of Interior Waterproofing
Our interior waterproofing solutions offer numerous benefits for homeowners across New Jersey.
Non-Invasive Installation
No need to excavate outside your home, minimizing disruption to your landscaping
Year-Round Service
Installed regardless of weather conditions, any time of the year
Quick Turnaround
Most systems completed in 1-3 days, getting your basement back to normal quickly
Cost-Effective
Lower cost alternative to exterior solutions with comparable protection
Benefits of Choosing A1 Everlast
When you choose A1 Everlast, you're choosing quality, reliability, and peace of mind.
30+ Years of Experience
Trust our decades of experience in waterproofing New Jersey homes
Fully Licensed & Insured
We maintain all required licenses and insurance for your protection
Lifetime Warranties
Available on select systems for long-term peace of mind
Code-Compliant Systems
All installations meet or exceed local building codes
Premium Materials
We use only the highest quality waterproofing products and techniques
Customer Satisfaction
We're not satisfied until you're completely happy with our work
What Our Customers Say
Don't just take our word for it. Hear from our satisfied customers.
"After years of basement flooding, A1 Everlast completely solved our problem with their interior waterproofing system. It's been 2 years without a single drop of water, even during the heaviest storms!"
"The team was professional, clean, and finished ahead of schedule. Our basement has never been drier, and we were able to finish it into a beautiful living space for our family."
"The interior waterproofing system A1 Everlast installed was much less disruptive than I expected. They were in and out in two days, and our basement has been dry ever since. Worth every penny!"
Book a Free Waterproofing Inspection
Don't wait for the next heavy storm to cause irreversible damage. Get proactive. Contact A1 Everlast today to schedule your free interior waterproofing consultation.
Contact Us
Contact Information
Our team is ready to answer your questions and schedule your free on-site estimate.
Call us at
(973) 427-4888
Email us at
Our location
1 Ethel Avenue Hawthorne, NJ 07506
Service Areas
We provide interior waterproofing services throughout Northern and Central New Jersey, including:
