Define the covered problem and the repair remedy
Ask for a drawing identifying covered walls, floor joints, cracks and drainage components. Does the promise address water entering those areas, defective installation, failed equipment—or some combination? Request separate explanations for the contractor’s workmanship coverage and any manufacturer’s equipment warranty. For how interior drainage and exterior waterproofing differ as scopes, see Interior drainage or exterior waterproofing: what each does.
Make the remedy concrete: who pays for diagnosis, replacement parts, labor, opening finished surfaces and restoring disturbed concrete? Ask separately about damaged flooring, belongings and cleanup. Keep a dated photo log of wet areas before work starts; see What should I document when water appears in my basement?.
Make “lifetime” and transferability specific
Ask whose or what lifetime controls: the original purchaser’s ownership, the installed system, the building, or another defined period. Require a start date and when coverage ends. Do not assume equipment coverage and installation coverage are identical—ask whether a limited product warranty covers only the initial owner or parts without labor.
For transferability, request the eligibility rules, notice deadline, fee, inspection requirement and remaining coverage in writing. Can coverage transfer more than once? Must maintenance records accompany it? Ask for a sample transfer acknowledgment and use this test: “If I sell in five years, exactly what must the buyer and I do?”
Read exclusions against the actual moisture problem
EPA distinguishes water leaking or seeping into a building from condensation that forms when humid air meets a cold surface (EPA — Biological Contaminants and Indoor Air Quality). Before accepting a warranty, record whether wetness follows rain, where it first appears, and whether droplets collect on cold pipes or walls. These observations help frame an inspection; they do not establish the cause.
Ask the contractor to explain coverage for groundwater seepage, condensation, plumbing leaks, sewer backup, outside flooding, power outages, pump failure, blocked discharge and foundation movement. If “flooding” is excluded, request a definition explaining how it differs from the water intrusion the work is intended to address. A dry-basement promise should also explain whether humidity is addressed. EPA recommends indoor relative humidity below 60 percent, ideally 30–50 percent (EPA — Brief Guide to Mold, Moisture and Your Home).
Turn maintenance obligations into a written schedule
Request a written schedule identifying each required task, its frequency, who may perform it, acceptable proof and any mandatory paid service. Ask specifically about pumps, backup batteries, drainage components and discharge outlets.
Clarify whether missing one service visit ends all coverage or affects only a failure connected to that omission. Ask how later basement finishing, landscaping changes or another contractor’s work could affect the warranty. Keep dated service reports and photographs. EPA recommends regular gutter maintenance and ground sloping away from foundations (EPA — Brief Guide to Mold, Moisture and Your Home); ask the installer to name any property conditions that must be corrected or maintained.
Keep Pennsylvania contract protections separate
Pennsylvania’s Home Improvement Consumer Protection Act (HICPA) expressly includes waterproofing in the definition of home improvement (HICPA statute text; HICPA FAQ). Covered home improvements costing more than $500 require a written, signed contract that contains the entire agreement. Attach the complete warranty to that contract rather than relying on a brochure or a salesperson’s assurance.
HICPA generally provides three business days to cancel, subject to the statutory emergency exception (HICPA statute text). Contractor registration is not state endorsement or approval of skill (Home Improvement Contractor Registration), and it should not be presented as financial backing for a warranty.
Before signing, ask the municipal code office which permits and inspections the proposed drainage, sump or excavation work requires. In Philadelphia, an Excavation Site Permit is required for excavation that creates a cut, trench, or depression five feet below an adjacent grade (Philly L&I — Excavation Site Permit). Have the contract identify who obtains permits and completes inspections. For Philly sump/waterproofing permit triage see Does Philadelphia require a permit for basement waterproofing or a sump pump?; for Bucks township differences see Do Bucks County townships require a permit for a basement waterproofing job?. HICPA treats a contractual waiver of applicable health, safety or building-code requirements as a clause that can make the agreement voidable by the owner.
Know how to make and challenge a claim
Keep the contract, warranty, installation drawing, equipment information, payment records and maintenance history together. Ask for the claim deadline, reporting method, inspection charges and response process before signing. When reporting a problem, supply dated photographs and request a written cause assessment, coverage decision and proposed remedy.
Do not disturb electrical equipment, excavate foundations, or handle suspected mold or sewage to prove a claim. Request an appropriate independent professional when causes are disputed. For an unresolved consumer dispute, the Pennsylvania Attorney General’s Bureau of Consumer Protection accepts complaints and asks you to retain supporting records such as contracts, warranties, and proof of payment (PA AG — Consumer Complaints). Consult a Pennsylvania consumer-law attorney about enforceability or legal deadlines; a complaint process is not a substitute for individualized legal advice.