Complete Waterproof & Concrete in Baltimore: Foundation and Basement Repair with Licensed Contractors
Complete Waterproof & Concrete is a licensed basement waterproofing and concrete repair contractor operating in Baltimore, serving residential and light commercial properties across the city and surrounding counties with interior and exterior moisture control, foundation crack sealing, and concrete restoration.
What Complete Waterproof & Concrete actually does
The company specializes in below-grade waterproofing, addressing the specific moisture challenges that affect Baltimore's older housing stock and newer construction alike. Work includes interior drain systems (interior perimeter drains and sump pump installation), exterior excavation and membrane application, concrete foundation crack injection, efflorescence treatment, and concrete replacement or resurfacing. They handle both new construction waterproofing and remedial work on existing properties where water intrusion has already occurred.
Services and pricing
Complete Waterproof & Concrete charges for work on a per-project basis following a free on-site inspection and estimate. Interior drain systems typically run $3,500 to $8,000 depending on basement perimeter and sump pump specifications; exterior waterproofing with excavation, membrane, and drain tile ranges from $8,000 to $18,000 for an average Baltimore basement. Concrete crack injection (hydraulic cement or polyurethane, depending on crack type and activity) costs $500 to $2,500 per project. Full concrete replacement or resurfacing is priced by square footage and condition. Most estimates are valid for 30 days. Verify current pricing by calling for a free inspection; labor rates and material costs shift seasonally, particularly for exterior work.
How it compares to other Baltimore waterproofing options
Baltimore has three main categories of waterproofing service: national franchises (Basement Systems, Groundbreaker, Aquaguard), large regional contractors, and smaller independent shops. National franchises typically charge 20 to 40 percent more per project but offer standardized processes and transferable warranties; they suit homeowners buying or selling who need documented work and peace of mind. Complete Waterproof & Concrete sits in the middle tier: established enough to carry licensing and insurance and handle complex jobs, but locally rooted and more flexible on scope and timeline than a franchise. Independent one-person operations are cheaper upfront but carry higher risk around licensing compliance and follow-up if problems emerge. For a Baltimore homeowner choosing between Complete Waterproof & Concrete and a franchise, weigh whether you need a brand-name warranty and national backing (franchises win) or faster turnaround and lower cost on straightforward basement repairs (Complete Waterproof & Concrete typically wins).
Who it suits and who it does not
This contractor fits homeowners with active water intrusion, cracks, or dampness in basements or crawl spaces who want local, licensed work without franchise pricing. It also suits properties with mixed issues: a cracked foundation, efflorescence, and a failed sump pump that need coordinated repair by one team. It does not suit homeowners looking for cosmetic basement finishing (drywall, flooring, egress windows); Complete Waterproof & Concrete handles the waterproofing layer underneath but does not provide renovation carpentry or design. It also does not suit urgent same-day emergency calls during storms; like most waterproofing contractors, they schedule work based on inspection availability and material lead times, not emergency dispatch.
What the first visit involves
Call for a free estimate. An inspector visits the property, evaluates moisture sources (groundwater seepage, surface water pooling, humidity, condensation), checks for active leaks or mold, assesses foundation cracks under magnification, and reviews drainage patterns around the house. They ask about water history (when problems started, seasonality, previous attempts to fix it) and any basement use (finished space, storage, utilities). The inspector then proposes one or more solutions, explains the difference between interior and exterior work, and provides a written estimate with a detailed scope. The estimate includes materials, labor, timeline, and warranty terms.
Hours, parking, and logistics
Complete Waterproof & Concrete operates Monday through Friday, 8 a.m. to 5 p.m., with some weekend availability for inspections by appointment. Office is located in Baltimore County. Work is performed at your property; parking is not a factor. Most interior drain projects take three to five days; exterior waterproofing takes five to ten days depending on soil and weather. Spring and fall are peak seasons for exterior excavation work; winter and early spring are busy for interior systems as snow melt and rain expose existing problems. Verify current scheduling by phone or email before committing.
Complete Waterproof & Concrete earns its place in a Baltimore guide because it fills the practical middle ground for homeowners tired of water in the basement but skeptical of franchise pricing, and because waterproofing is one of the few home repairs that directly determines whether a basement remains usable or becomes a liability.

