If you live in Northumberland County, PA, you know how unpredictable the weather can be. From heavy summer storms to winter snowmelt, basements in the area often face water intrusion, damp air, and foundation cracks. Older homes with stone or block foundations are especially vulnerable, while newer homes can also experience flooding if drainage systems aren’t properly maintained. Left untreated, these problems can lead to mold and mildew growth, structural damage, and decreased home value. That’s why professional basement waterproofing in Northumberland County is essential for protecting your home, keeping your family safe, and maintaining a healthy indoor environment year-round.

 Why Basements Leak in Northumberland County

Basements in Sunbury, Shamokin, and surrounding Northumberland County towns face unique water challenges. In many cases, these issues are caused by a combination of soil conditions, weather patterns, and aging construction. Common causes of basement leaks include:

  • Hydrostatic pressure: When water builds up in the soil, it pushes against basement walls and floors.

  • Freeze-thaw cycles: As temperatures rise and fall, expanding and contracting cracks weaken older foundations.

  • Poor drainage: Gutters and grading that direct water toward the home instead of away from it.

  • Aging walls: Block or stone foundations commonly found in older Northumberland County homes.

If these problems are left unaddressed, they can lead to basement flooding, mold growth, and even structural damage over time.

Our Permanent Waterproofing System will Keep Your Basement Dry… For Good…

We don’t rely on quick fixes like paints or surface sealants. Instead, we design custom waterproofing systems tailored to your home’s specific conditions. As a result, you get long-term protection—not temporary relief.

Our solutions may include:

  • First, interior French drains that collect groundwater beneath the slab to prevent pooling and mold

  • Next, high-capacity sump pumps with optional battery backup to ensure continuous protection

  • In addition, patented crack repair that permanently seals cracks and prevents them from spreading

  • When accessible, exterior waterproofing and grading improvements to divert water away from the foundation

  • Finally, vapor barriers and dehumidification systems for long-term moisture control and healthier indoor air

Because every system is custom-designed, homeowners can enjoy a dry, safe basement year-round.

Why Choose Basement Waterproofing Specialists

Homeowners across Pennsylvania, New Jersey, and Delaware trust us for a reason. In fact, our reputation is built on decades of proven results:

  • We are a 4th-generation, family-owned, woman-owned, local company

  • Consistently voted Best Basement Waterproofer 11 years in a row

  • Trusted by thousands of satisfied homeowners throughout PA, NJ, and DE

  • Protected by a lifetime transferable warranty on all waterproofing systems

  • Plus, free, no-obligation estimates and 15% off for a limited time

Above all, we treat every home like it’s our own—no shortcuts, no subcontractors, just professional, permanent solutions.

Service Area in Northumberland County

We proudly serve homeowners in:

Sunbury, Shamokin, Milton, Mount Carmel, Kulpmont, Watsontown, Northumberland Borough, and surrounding communities.

👉 So don’t wait, call today to schedule your free estimate and enjoy peace of mind with a permanently dry basement.

Simply enter your info in the form below

Drain trench for basement waterproofing system in Northumberland County PA
Stone-filled drainage trench installed as part of this commercial-grade basement waterproofing system in Northumberland County PA.

About Basement Waterproofing Specialists

🔅Basement Waterproofing Specialists is a 4th Generation, Local, Woman-Owned, Family Business. We are based in Collegeville, PA, but we serve all of New Jersey, Delaware, and much of Pennsylvania, including Northumberland County. 

With over 10,000 Facebook Fans + over 250 5-Star Reviews 🔅🔅🔅🔅🔅, it’s easy to see why we’ve been voted Best Basement Waterproofing Contractor for 11-straight years in the New Jersey, Eastern PA, and Delaware areas. 800-700-9171 for help.

For more info, and to grab your Free Estimate, visit our website: http://www.BasementWaterproofingSpecialists.com/Contact-Us