NEW YORK CITY's #1 RATED construction estimating service. We provide all kinds of construction and building bidding and estimating services and we are always glad to resolve nonstandard and unique tasks. Nassau County Estimating Service Suffolk County New York Estimating transforms your dreams! We Estimate Interior & Structural Work We provide construction estimating services for busy contractors here in New York City. We give you the best possible estimate when it comes to interior or structural work. Including Drywall Estimates for Manhattan, New York City.