I wholeheartedly recommend Saimon and his whole crew at Perfect Contracting. I hired them to re-brownstone the entire façade of my 1895 Park Slope home. As well as waterproof the cellar and redo the roof.
The results have been execellent. Saimon was always easy to reach, and his crew arrived everyday on time. They took special care to keep the worksite tidy and in good order (more important than you might think, when work is as messy and dust-intensive as re-brownstoning is). Saimon stands behind his work and his price – he did not haggle when, for example, leaks in the foundation required extra work to cure. He made sure I was happy with the color of the brownstone, and his crew was able to restore period details with great skill. These guys are gold.