Venegas Plumbing
- A full-service, family owned and operated plumbing company serving the greater metro area. Features company background, overview of installation and repair services, FAQs, and a contact form.
- http://venegasplumbing.com/

R. Siwek Company
- Sewer and drain repair, rodding, televising, and diagnostic work for residential, commercial and industrial plumbing fixtures. Special offers, hours of operation, and location map are provided.
- http://rsiwekco.com/

Jsr Enterprises, Inc.
- Mechanical contractor specializing plumbing and sewers.
- http://www.jsrent.com/

Chicago Plumbing Code.com
- Search engine and index for plumbers, apprentices and handypersons with the city's municipal plumbing code; features information, news, FAQs, members area, forum, feedback, math help, and links.
- http://chicagoplumbingcode.com/

Banner Plumbing
- Wholesale distributor of plumbing supplies with locations in Chicago and Buffalo Grove.
- http://www.bannerplumbing.com/