Kitchener-Waterloo's largest selection of plumbing parts under one roof.
One Stop Plumbing Limited has stocked the region's widest range of plumbing parts and fixtures since 1983, including the hard-to-find pieces other stores stopped carrying. No trade account needed. Call or text a photo of what you need and we will check it for you.
The store to call when nobody else has it
One Stop Plumbing Limited has supplied the Kitchener-Waterloo region with plumbing parts, fixtures and materials since 1983. We carry the area's largest in-stock selection, from everyday toilet and faucet parts to pieces other stores stopped carrying years ago.
You do not need a trade account to shop here. Homeowners, landlords and contractors all come through our door on Victoria Street in Kitchener. Send us a photo or description of the part by text and our plumbing technicians on the floor will help you track it down.
The area's largest selection of plumbing parts
From everyday fixtures to the pieces other stores stopped carrying, our shelves are built around what Kitchener-Waterloo actually needs.
Toilets & Faucets
Replacement parts and full fixtures for toilets and faucets, in stock and ready to go.
- Toilet parts & full units
- Faucet repair kits
- Same-day pickup
Bathroom Remodel Materials
Rough-in supplies and finishing fixtures for a full bathroom remodel.
- Rough-in supplies
- Finishing fixtures
- Project quantities
Reverse Osmosis Water Filters
Filtration systems and replacement cartridges, with staff who know how they work.
- Full RO systems
- Replacement cartridges
- Setup guidance
Sump Pumps & Backups
Sump pumps and battery backup units, special-ordered fast when you need one.
- Primary sump pumps
- Battery backup units
- Fast special orders
Pipes, Fittings & Hardware
The area's largest stock of pipe, fittings and general plumbing hardware.
- Copper, PEX & ABS
- Fittings & valves
- Hard-to-find sizes
Hard-to-Find & Obsolete Parts
Our specialty: parts other stores stopped carrying, tracked down for you.
- Discontinued parts
- Cross-reference lookup
- Text us a photo
Kitchener-Waterloo's plumbing parts counter
Our store is on Victoria Street in Kitchener. Customers regularly drive in from Waterloo, Cambridge and Guelph for parts they cannot find anywhere else.
Get directionsIn-store
- 842 Victoria St N, Kitchener
Customers also drive in from
- Waterloo
- Cambridge
- Guelph
Straight from Kitchener-Waterloo customers
★★★★★“Extremely friendly and knowledgeable service! They ordered in a sump pump backup unit for me and had it ready the next morning. Price was great as well. Would highly recommend :)”
“Overall I've had a fantastic experience with One Stop Plumbing. It's one of the few stores in the area that will actually sell to people without an account. I had a very large order, and Polly, (I presume to be one of the owners), had everything ready for pickup within the day and was extremely thorough to make sure that I got everything that I needed.”
“Met the owner several times, and found her to be very friendly, very flexible, and knowledgeable about reverse osmosis water filters. I have been a customer since 2019 and don't plan on finding anyone else.”
Describe what you are looking for
Describe the part, or better yet, text us a photo. We will tell you if we have it and what it costs.
Prefer to just call? We are happy to check stock while you are on the phone.
Drop by the store or give us a call
Kitchener, ON N2B 3C1
Closed Saturday, Sunday & holidays
Call or text a photo of the part and we will check stock before you make the trip.