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Mark Stillwachs and his Inside Edge team completely solved a variety of basement waterproofing problems at our home in the Springs, from August through December 2006, steadily applying creative solutions and utilizing advanced waterproofing techniques until each water problem was eradicated. Our particular situation included water leakage originating from the waste pipe egress through the foundation, water seepage through a wall seam adjoining the original and an extended foundation, water seepage at a floor – wall seam, and perhaps most challenging of all… water flowing into the basement from window wells filled by adjacent drainage problems.

Professional, ethical, creative, courteous, communicative, on-time, in-budget… I highly recommend Mark and the Inside Edge team at tackling the most challenging waterproofing problems.

Len Kies
East Hampton, NY
February 2007


I am grateful to know Mark Stillwachs and Inside Edge Contracting. Marks’s work ethic is thorough, professional and honest. It is true to say that I have had my fair share of horror stories with the building profession on the East End. He approaches his clients with integrity, humor and compassion and dedication to excellence in his profession. I cannot express my gratitude more adequately nor can I recommend him more highly.

Deva Kaur Khalsa
Sagaponack, NY
March 2007

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