SERVING THE GREATER PHILADELPHIA AND LEHIGH REGIONS

EXTERIOR WATERPROOFING SOLUTIONS

Exterior waterproofing is a smart, long-term investment that protects your home from the outside in. By stopping water before it ever reaches your foundation, this proactive solution helps prevent basement leaks, structural weakening, mold growth, and even pest problems. It’s one of the most effective ways to maintain the integrity and value of your home for years to come.

Water Pooling Around Your Foundation After Rain

Foundation Cracks

Mold

Musty Odors

Leaking or Damp Walls

Crystalline Deposits on Concrete

Interior Pooling or Standing Water

Why Exterior Waterproofing Matters...

At Del-Val Basement Waterproofing, we take a proactive approach to protecting your home by stopping water before it ever gets inside. Our exterior waterproofing services are designed to shield your foundation, preserve structural integrity, and eliminate the risk of leaks, mold, and costly repairs down the road.

Whether you're dealing with foundation cracks, seepage, or surface water issues, our team will assess your property and design a solution tailored to your home, yard layout, and soil conditions.

Complete Exterior Waterproofing Services We Offer:

  • Foundation Excavation & Waterproofing – We carefully expose your foundation walls to repair cracks, apply waterproof coatings, and install drainage membranes that block moisture from entering your home.
  • Exterior Crack Repairs – Structural and non-structural cracks are sealed and reinforced from the outside to stop water intrusion at the source and prevent further damage.
  • Water Sealing & Protective Coatings – We apply high-performance sealants to foundation walls to create a watertight barrier that resists hydrostatic pressure and groundwater seepage.
  • Exterior Drainage Systems – Including French drains, dry wells, and gravel backfill, these systems work in tandem with waterproofing to redirect water away from your home.
  • Sump Pump Installation (Exterior or Yard-Based) – Ideal for properties with persistent water issues, sump pumps actively remove excess groundwater from around your foundation.
  • Downspout Extensions & Grading Corrections – Simple, effective solutions to ensure rainwater is moved away from your home—not toward it.

Water intrusion isn’t just a basement problem—it’s a foundation problem. By addressing the root cause from the outside, Del-Val helps you avoid interior water damage, protect your investment, and maintain a healthy, dry living space. Our systems are built for long-term performance and tailored to withstand changing seasons, heavy rains, and rising groundwater.

Del-Val's Exterior Waterproofing Services

Protect Your Home from the Outside In with Exterior Waterproofing. Don’t wait until the next storm exposes a hidden foundation issue. Let Del-Val Basement Waterproofing help you protect what matters most—your home. Contact us today for a free, no-obligation consultation, and learn how our expert exterior waterproofing solutions can keep your basement dry and your foundation strong for years to come.

Foundation Excavation:

We carefully excavate the area around your foundation, creating an ideal workspace for installing waterproofing systems. Proper excavation ensures that all waterproofing measures, like foundation sealing and drainage, are installed correctly and effectively.

Foundation Wall Sealing:

We apply high-quality sealing materials directly to your foundation walls, protecting your home from water seepage and enhancing structural durability. This barrier is essential to prevent moisture damage and keep your basement dry.

Exterior Drainage Installation:

Del Val installs a variety of exterior drainage systems—including French drains, catch basins, dry wells, and swales—designed to move water away from your foundation. These systems can be connected to sump pumps, downspouts, or grading adjustments to provide a reliable first line of defense against water intrusion and foundation damage.

Footing Drain Installation:

Our team installs exterior footing drains designed to carry water away from your foundation. These drains can connect to either an exterior sump location or a sump pump crock, providing a strong first line of defense against water intrusion.

Frequently Asked Questions

  • Is exterior waterproofing better than interior waterproofing?

    They serve different purposes. Exterior waterproofing stops water before it reaches your foundation, while interior waterproofing manages water that has already entered. For the best long-term protection, especially in homes with severe or recurring water problems, exterior waterproofing is often the most effective solution.

  • What is exterior waterproofing, and how does it work?

    Exterior waterproofing involves protecting your foundation from water intrusion by addressing the problem at its source—outside your home. This often includes excavating around the foundation, repairing cracks, applying waterproof coatings or membranes, and installing drainage systems like French drains or gravel backfill. The goal is to stop water before it ever reaches your basement or crawl space.

  • How do I know if I need exterior waterproofing?

    Common signs include water seepage through basement walls, visible cracks in your foundation, musty smells, mold growth, or standing water near the base of your home. If you're experiencing any of these issues—especially after heavy rain—it's time to schedule a professional inspection.

  • How long does exterior waterproofing last?

    When done properly with quality materials, exterior waterproofing can last 20–30 years or more. It's a long-term investment in your home's health and value. Periodic inspections and proper yard drainage can help extend the life of the system.