G & J Waterproofing
Genuine local interior/exterior drainage and foundation installer with a documented Pittsburgh permit and substantial stone-foundation scope.
Who runs it
- Harry Wynkoop ✓ Owner
- Katie Ramaley ✓ Manager
Credentials & verification
- State license
- PA124557, unverified, re-check with board
- BBB
- A+, accredited
- Insured / bonded
- Yes
- Years in business
- 16
Services
Service area
Pittsburgh, PA · Allegheny County, PA · Western Pennsylvania
Reviews (per platform, unblended)
Our verification notes
High-caution inclusion. BBB links principal Harry Wynkoop to prior business MYT Waterproofing; the surfaced Yelp profile for MYT is 1.0/5 from three reviews and includes a 2026 reviewer alleging the same ownership. BuildZoom displays multiple HIC numbers and stale/conflicting verification dates; BBB lists PA124557, but current status was not independently established as of this pull. Do not contract until the PA Attorney General registry, insurance certificate, engineer involvement and exact contracting entity are checked. No CFM, IASM or FEMA grant experience was verified.
Sources checked
- BBB profile: A+ accreditation, principal history, services and PA registration number
- BuildZoom record with permits, insurance and conflicting PA HIC records
- Yahoo Local/Yelp profile for the principal's prior MYT Waterproofing business
Last verified 2026-07-16. This is an independent listing, not an endorsement, and we are not affiliated with G & J Waterproofing. Confirm the current license, insurance and references directly before signing any contract.