Where can I find good home improvement companies that work on aluminum siding projects in Brooklyn, NY?

I need to get an estimate on how much it would cost to repair (or replace, if necessary) my aluminum siding. Additionally, I need to find a company that can do masonry (cement and brick work) work (we need new outdoor stairs). I'd like to find a site that has a listing of outstanding, top, or leading construction companies located in Brooklyn, Queens, or Manhattan here in New York City (NYC).

Thank you!

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