Serving Islip with the kind of dependable, owner-managed construction work that this community's homeowners can count on without second-guessing. Islip is a well-established Suffolk County town with a mix of older homes and newer builds — and every property type comes with its own set of needs, challenges, and expectations. D&J Construction has spent over 11 years working on Long Island homes and brings that hands-on experience to every Islip project, from basement finishing and bathroom remodels to deck construction and exterior power washing. Dennis personally manages every job in Islip — he is not running the business from an office while someone else handles your home. You get direct communication, consistent oversight, and a finished product that reflects the standard D&J has built its reputation on across Nassau and Suffolk County for more than a decade.