Allen’s Construction
waterproofing
Serving Freeport, IL
Location: 29 E. Stephenson St., Freeport, IL 61032
From Google Business Profile
View on Google Maps →About waterproofing in Freeport
Basement waterproofing contractors stop leaks with drainage systems, sump pumps and sealing. Waterproofing contractors install interior drain tile and sump pumps, exterior membranes, crack injection, window well drainage, vapor barriers and dehumidifiers to keep basements dry.
Typical cost: $3,000–$12,000 for interior drainage systems. See the full cost guide
Typical U.S. ranges from industry sources (2024–25); not EdgeLocal data. Your quote will vary with scope, materials and location.
Questions to ask this contractor
- Identify the water source: Grading and gutters may solve problems for less.
- Compare interior and exterior options: Ask for pros and cons of each.
- Ask about the sump pump: Get pump brand, capacity and backup options.