Building Information System
Research Department of Buildings web site, find out about new laws and regulations, search for violations, find professional contractors licensed by the Department.

NYC Building Code
Latest version of the NYC Building Code and updates.

The Blue Book of Building and Construction
Construction database of general contractors, architects, engineers, sub-contractors material and equipment suppliers and manufacturers.

Plumbing Web
Plumbing Web is the most up to date plumbing links resource on the World Wide Web.

Locate A Plumber

Useful plumbing information

Heating & Solar :
Viessmann - Best Boilers ever created

http://www.roth-usa.com