General Contractor and Construction Manager of commercial, residential, and institutional projects in Puerto Rico and the US Virgin Islands. Blackhorse Construction is the culmination of over 33 years of high-end construction experience of the principal, Robert A. Grosek, on large scale corporate, residential, institutional, and public sector projects. Twenty (20) of those years have been dedicated to work specifically in Puerto Rico. Blackhorse Construction Corp. was formed on the island in 2004 and has grown steadily in very difficult times delivering projects successfully of ever increasing size and complexity. We committed to the complete satisfaction of our clients first and foremost, always delivering a high quality construction product - fast and efficient, on budget and on time.