Gold Seal Waterproofing/DMS Construction are the best foundation crack repair contractors in Massachusetts. I had them do my foundation crack repair and basement waterproofing in Westboro, Massachusetts and I haven't had a problem since then. I'd recommend them for foundation waterproofing and foundation crack repair to anyone in Massachusetts: Holden, Southboro, Northboro, Paxton, Westboro, Marlboro, Sterling, Leominster, Fitchburg, Milford, Sutton, Dudley, Webster, Auburn, Shrewsbury, Northbridge, Southbridge, Oxford, West Boylston, Boylston, Princeton, Rutland, Grafton, Millbury, Uxbridge, Blackstone and any other city in Massachusetts. Gold Seal Waterproofing proved themselves to me by the job they did on my foundation crack repair and basement waterproofing. The sump pump installation was flawless and actually looks kind of nice. How do you make a sump pump look nice?