LMS Contractors Inc in Baltimore: Basement and Foundation Waterproofing for Row Houses
LMS Contractors Inc is a licensed waterproofing contractor operating in the Baltimore area, focused on basement water intrusion, foundation cracks, and moisture control in residential properties. The company handles both interior sealant work and exterior foundation drainage solutions, common needs in Baltimore's aging row house stock where water seepage into below-grade spaces is endemic.
What LMS Contractors Inc actually does
LMS Contractors specializes in diagnosing and stopping water entry at the foundation level. This includes interior wall sealants and epoxy injections for cracks, exterior perimeter drainage installation, sump pump systems, and vapor barrier application. The scope runs from single-room dampness remediation to whole-basement waterproofing packages. They serve Baltimore city and surrounding County properties, with particular experience in 1920s–1970s construction where foundation cracks and poor drainage are structural givens rather than exceptions.
Services and pricing
The company charges for an initial site inspection and moisture assessment; confirm current cost with them directly, as diagnostic fees vary by scope. Interior crack sealing with hydraulic cement or epoxy runs between $400 and $1,200 per crack, depending on depth and width. Sump pump installation with discharge line runs $1,500 to $3,500. Full perimeter exterior drainage systems (French drain plus gravel and membrane) typically fall in the $8,000 to $15,000 range for a standard Baltimore row house footprint. Vapor barrier installation for concrete floors is priced per square foot and usually ranges $2 to $5 per sq ft. Most jobs qualify for financing; ask about payment plans when requesting an estimate.
How it compares to other Baltimore waterproofing options
Baltimore has several waterproofing contractors, each with a different approach. Basement Systems (with a local franchise) emphasizes interior solutions like wall anchors and sump pump packages, often with extended warranties and financing built in; they tend to run higher on price but market aggressively. Local independent operators like LMS typically focus on tailored site analysis and mixed interior/exterior solutions, often costing 15 to 25 percent less than franchise chains. Choose LMS if you want a direct relationship with a local license holder and custom diagnosis; choose a franchise if you value a national warranty and sales financing. For serious structural water intrusion, get estimates from at least two contractors, as diagnosis varies.
Who it suits and who it does not
LMS is appropriate for Baltimore homeowners with active water intrusion, visible efflorescence (white mineral deposits on basement walls), or standing water after heavy rain. It works well for those planning to stay in a property long-term and willing to invest in permanent solutions rather than temporary patching. It is less suitable for renters (who cannot authorize structural work) or owners planning to sell within two years who may not recover the cost. It is also not the right fit if water entry is seasonal and minor; those cases often resolve with exterior grading and gutter work alone, which a general contractor can handle.
What the first visit involves
LMS schedules an on-site inspection, typically free or low-cost. The contractor walks the basement and crawl spaces, checks for active seepage, looks for mold, assesses crack patterns and their alignment to foundation movement, and evaluates existing drainage or sump systems. They examine grading around the exterior perimeter and may probe soil moisture. You should be prepared to discuss when seepage started, whether it worsens with rain, and any prior repair attempts. The inspection usually takes 30 to 60 minutes. A written estimate follows, outlining materials, labor, and timeline. Many homeowners ask for a second opinion before proceeding; that is standard and wise.
Hours, parking, and logistics
LMS operates Monday through Friday, 8 a.m. to 5 p.m., with Saturday appointments available by request. Most work is performed at your property, so parking is not an issue. Interior work (sealant, sump installation) typically takes one to three days; exterior drainage jobs require two to five days depending on soil conditions and scope. Weather delays exterior work, especially if rain is forecast during or immediately after installation. Confirm current hours and scheduling availability by phone or their website, as service windows do shift seasonally.
LMS Contractors earns space in a Baltimore guide because waterproofing is not optional in a city where 60 percent of housing stock predates 1950 and where foundation water intrusion is a leading cause of basement abandonment and foundation damage. A contractor with local experience and residential focus addresses a real, recurring problem.

