Skip to content

Basement waterproofing proposal comparison checklist

A homeowner basement-waterproofing proposal checklist for comparing diagnosis, exterior versus interior scope, drainage path, footing drains, sump and discharge, crack and wall treatment, excavation limits, structural and utility risks, mold or finish removal, permits, testing, warranties, exclusions, price allowances, restoration, maintenance, and proof of performance before signing.

6 items to check

Inspection progress0 of 6
0%

Each proposal states the diagnosed water source, limitations, and exact surfaces or events addressed

Critical item

A bid should connect observed evidence to the proposed method and disclose uncertainty or excluded causes.

Water collection, drainage, pumping, discharge, and overflow path are complete

Critical item

The system should show how water reaches a drain or pump and where it safely goes under normal and failure conditions.

Excavation, footing, wall, slab, utility, porch, deck, driveway, and structural risks are allocated

Critical item

The proposal should identify protection, temporary support, engineering, access, spoil, shoring, and restoration for affected construction.

Membranes, sealants, drains, insulation, vapor control, radon, finishes, and interfaces form a compatible assembly

Critical item

Products and transitions should follow approved details and avoid trapping water or disrupting other required systems.

Price, allowances, substitutions, schedule, permits, testing, restoration, cleanup, and payment milestones are comparable

Commercial terms should permit like-for-like comparison and hold payment to observable milestones.

Warranty coverage, exclusions, transfer, maintenance, pump replacement, claim procedure, and documentation are understandable

Critical item

A warranty should identify the covered condition and owner obligations without substituting for missing design or installation detail.

Use after moisture sources are documented and before signing a waterproofing, drainage, excavation, crack-repair, interior-channel, sump, or encapsulation contract. No system is universally appropriate; site water, structure, soil, access, discharge, local rules, and intended occupancy control the scope. Do not enter unsupported excavations, confined or oxygen-deficient spaces, flooded or sewage-contaminated areas, energized wet areas, visibly unstable structures, or crawlspaces with unknown air, pest, mold, asbestos, or electrical hazards. Do not drill, jack, excavate, open pressurized systems, or alter structural supports without qualified direction.

Reference standards

  • Approved repair or remodeling scope, adopted state and local building, residential, energy, plumbing, mechanical, electrical, fire, flood, and health requirements, permit conditions, authority having jurisdiction requirements, qualified geotechnical and structural design where applicable, environmental test requirements, and exact drainage, waterproofing, insulation, pump, window, radon, and repair-system manufacturer instructions
  • Moisture assessment, drainage and site information, structural or geotechnical recommendations, utility locations, pump and membrane product data, warranty terms, and contractor licensing and insurance requirements

    • Tools

  • Written scope, drawings, geotechnical or structural reports, drainage information, permits, inspection records, product data, and authorized changes
  • Camera, flashlight, tape measure, level, crack gauge or scale, hygrometer or moisture tools used within their limitations, and dated location-based photographs
  • Qualified trade, engineer, waterproofing, environmental, radon, plumbing, electrical, and commissioning records where required

    • Related Checklists

    Basement moisture assessment before finishing checklist

    A pre-finishing basement moisture checklist for rain and seasonal history, foundation and slab leakage, condensation, plumbing and HVAC sources, exterior grading and drainage, sump and drain behavior, humidity, material condition, mold or odor concerns, drying verification, radon planning, and release criteria before framing, insulation, drywall, flooring, cabinets, or stored contents hide vulnerable surfaces.

    Exterior foundation waterproofing before backfill checklist

    A pre-backfill existing-home foundation waterproofing checklist for excavation safety, exposed-wall condition, structural cracks and repairs, substrate preparation, selected dampproofing or waterproofing system, seams and penetrations, footing drains, aggregate and filter layers, insulation and protection board, window wells, utilities, discharge, inspection, photographs, wall bracing, and controlled backfill before the work disappears.

    Foundation crack triage before cosmetic repair checklist

    A pre-repair foundation crack checklist for documenting location, width and pattern, movement indicators, displacement, water entry, soil and drainage context, wall type, prior repairs, nearby openings and loads, urgent safety triggers, structural or geotechnical referral, monitoring, and evidence before sealant, patching, paint, or finish work hides the condition.

    Interior perimeter drain before slab restoration checklist

    A pre-concrete interior basement perimeter-drain checklist for slab-cut limits, dust and contamination controls, footing and wall condition, trench depth, pipe type and slope, aggregate and filter materials, wall drainage interface, sump basin connection, radon and vapor-control continuity, utilities, structural restrictions, cleanouts, inspection, test records, photographs, and concrete restoration before the drainage work is permanently covered.

    All checklists in category «Foundation, basement, and crawlspace»