The Source â€" Generation after Generation
 
We're not your typical wholesaler of plumbing and heating supplies. For one thing, we've been in business since 1939. We know our stuff.

For another, we handle only the finest, highest-quality brands – as we've done throughout our long history.

Today we're still central Indiana’s most complete source of plumbing/heating supplies and plumbing/heating expertise. Our customers – primarily plumbing, heating, and mechanical contractors – know us and trust us to provide the pipe, valves and fittings, hydronic equipment, and related supplies they need for virtually any residential or commercial project. They trust us as well for the technical experience and understanding to support what we sell.
 
Whatever you need in the way of plumbing and heating supplies, technical expertise, and consultation, you’ll find it worth your while to contact Winthrop Supply.
 
When you need pipe and fittings for the big jobs, the heavy-duty jobs, come to us. We stock a huge inventory of top-quality, top brand products that’ll help you tackle any application.

Looking for more than off-the-shelf pipe and fittings? We can custom-cut your pipe to the exact lengths you specify, package it with the necessary fittings, and ship it to you direct.
Piping
Recent News
07/10
Tackle Any Application with Our Inventory of Top-Quality Bathroom Fittings
No job is too big or too small with our huge inventory of bathroom fittings. We have what it takes for any application. If you need something heavy duty or for regular use, we have it covered. Since 1939, we've provided top-quality and top-brand plumbing supplies.
07/10
A Huge Inventory of Plumbing Supplies
Choose Winthrop Supply, based here in Indianapolis, for all of your plumbing supply needs. We have a comprehensive selection of top-quality and top-brand plumbing fixtures, for virtually any project.