We have the parts you need

Plumbing

Plumbing

Pipes, Fittings, Valves, Pumps, and More.

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HVAC

Heating & Cooling

Find the HVAC Products, Parts, and Supplies Perfect For the Job.

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Kitchen supply

Kitchen

Cabinets, Countertops, fixtures and more.

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bathroom supply

Bathrooms

Toilets, Showers, Sinks, Faucets and More.

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Experience the capitol advantage

Capitol District Supply is one of the largest supply and equipment distributors in the Capitol District with 3 convenient locations. We carry thousands of items in our warehouse from top manufacturers. If you are in need of plumbing, heating/cooling, kitchen or bath fixtures, look no further. Capitol District Supply also features a state-of-the-art showroom to display hundreds of trending kitchen and bath products. Please give us a call today to see how we can help you!

Contractor Training Class
IBC BOILERS

IBC TRAINING CLASS OVERVIEW

IBC Boiler Line and installation, troubleshooting and Service BC’s HC & DC Boilers have about 2 million units working 20 Years with a proven track record for reliability. These boiler are almost as simple and reliable as current Cast- Iron boilers with only 7 basic moving parts.

Food will be served.

SEPT 27TH & 28TH

residential zoning

FEATURED PRODUCTS

Arzel Zoning has been manufacturing an industry-leading zoning system for nearly 40 years. Designed to solve comfort issues people face in their home or business every day, their products offer superior quality, reliability, ease of installation, and the industries ONLY lifetime warranty.

Capitol Sales Flyers

September sales flyer

Download or view the September sales flyers full of savings.

Pay your bill online

Make a payment for Capitol District Supply or Capitol Kitchens & Baths orders and accounts.

Get the APP

SAVE TIME. SAVE MONEY.

DOWNLOAD NOW AND RECEIVE 2% OFF ALL ORDERS FOR THE FIRST TWO MONTHS.  PLACE $2,000 IN ORDERS ON THE APP AND KEEP THE 2% FOR THE YEAR!
Line Card

Capitol Line Card

Download or view Capitol’s Line Card

kitchen and Bath Planning Guide

Kitchen and Bath Planning guides

We’ll help you get the kitchen or bath you’ve always wanted at a price you can afford. These planning guides are filled with our advice and tips, to remodeling smarter and getting the best kitchen or bath—for less.