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
Plumbing gets old. What doesn’t? Who doesn’t? Winthrop Supply may not be able to rejuvenate you, but we might liven up your spirits with what we have to perk up your plumbing! We’re talking about our huge inventory of the finest plumbing pipes and fittings available in the Indianapolis area. Not only that, but we’re also talking about our plumbing pipe and fitting services, which customers all over Indy and beyond will likely tell you are also the finest of any plumbing supplier around.
Look to us for the sinks and faucets that are most in demand by Indianapolis homeowners, kitchen designers, and contractors. We’ve got the latest, trending styles. And we carry only the top brands, such as Elkay, whose stainless-steel sinks and faucets are among the most sought-after in the industry. Better yet, you’ll find all the styles you could want – and in a range of prices to suit your budget – under one roof, right here at our easily accessible Indianapolis location.