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.
Recent News
Okay, so it’s Winter. If you know or suspect you’ll be upgrading your house this Spring, the time to start planning is now. This might be the time to think about laying in a few supplies, too – especially plumbing supplies. After all, ’tis the season when prices are generally at their lowest. And why wait till Spring has sprung, when everyone hits the streets, scrambling to get what they need? You can beat the market by heading to Winthrop Supply before the snow melts.
Head on over to Winthrop Supply. Here you’ll find all the latest, trendsetting faucet styles in stock, from plain and utilitarian, to sleek and modern, to upscale, classic, and awesomely elegant. Whatever you choose, we’ve got some great prices, too. Of course, we offer among the top faucet brands. And you can count on us also for expert instruction on how best to install these faucets.