Locke Supply is a contractor-focused wholesale distributor of electrical, plumbing, and HVAC materials with a walk-in retail counter in Oklahoma City. The business caters primarily to licensed tradespeople but accepts cash-and-carry purchases from homeowners and serious DIYers who know what they need. Pricing reflects wholesale rates rather than big-box markup, and the inventory skews toward professional-grade stock and harder-to-find components that big-box retailers do not regularly carry.
Locke Supply operates as a trade supplier rather than a consumer showroom. The space includes open shelving of pipe, fittings, wire, breakers, and fixtures organized by trade category, a checkout counter, and a parts-lookup system for items not on the floor. Unlike Home Depot or Lowe's, there is no automotive section, no garden center, and no seasonal décor. The focus is on keeping contractors supplied for job sites and helping DIYers source specific components without navigating aisles designed for casual shoppers.
Electrical stock includes Romex, conduit, breakers, switches, outlets, and wire in bulk quantities and by the foot. Plumbing inventory spans copper, PEX, and PVC piping; brass fittings; valves; and rough-in supplies. HVAC sections carry ductwork, filters, and common replacement parts. Pricing is typically 15 to 25 percent lower than Home Depot for equivalent professional-grade products. A 25-foot roll of 12-2 Romex costs roughly $40 to $50; a box of 20-amp breakers runs $30 to $35 per unit for standard residential-grade stock. Prices shift with material costs and supplier promotions; call ahead to confirm current rates on bulk orders.
Locke Supply does not stock consumer-friendly starter kits or pre-packaged bundles. If you need "supplies to wire a bedroom outlet," you must know whether you want 12-2 or 14-2 wire and how much, and whether the job requires GFCI protection. This is by design: the store assumes you either have the knowledge or the contractor experience to specify what you need.
Home Depot and Lowe's carry electrical and plumbing supplies but price them for one-time retail transactions. A contractor buying ten boxes of breakers or fifty feet of copper pipe pays retail markup. Supply houses like Platt Electric and Watsco (primarily HVAC) serve similar niches but focus on different trades or have limited walk-in hours. Locke Supply's advantage is dual-trade inventory under one roof at wholesale pricing, with no membership fee. The trade-off is that you cannot browse casually or ask staff to walk you through a basic project; efficiency and self-service are implicit.
For a one-time homeowner project, Lowe's may be faster if you are unsure of exact specifications. For a contractor stocking a job site or a experienced DIYer sourcing bulk materials, Locke Supply delivers better pricing and a deeper bench of professional-grade options.
Locke Supply works best for licensed electricians, plumbers, and HVAC technicians who have existing accounts or pay cash. It also serves experienced DIYers who know the difference between wire gauges, fitting types, and code requirements. A homeowner tackling their first electrical job, or someone unsure what materials they need, will find the lack of guidance and pre-bundled solutions frustrating. Staff will answer specific questions but do not offer design advice or hand-holding through a project.
Walk in with a part number, material specification, or a photo of what you are replacing. If you have an account or contractor license, mention it at checkout. If you are paying cash or do not have an account, note that some trades may require a contractor ID or proof of license for certain restricted items, though most commodity electrical and plumbing stock is open to the public. Expect to navigate the floor yourself and use the parts lookup terminal if something is not visible. Checkout is straightforward but lines can form during morning hours when contractors stock up for the day.
Locke Supply is open Monday through Friday, 7:00 a.m. to 5:00 p.m., and Saturday 8:00 a.m. to noon (hours subject to change; confirm before visiting). Street parking is available on-site. The location is accessible to contractors with trucks or large material orders. There is no online ordering or delivery service through Locke Supply itself, though some contractors arrange direct supplier shipments for major bulk orders.
Locke Supply fills a specific gap in Oklahoma City's supply chain: professional-grade materials at wholesale rates, no membership required, and minimal retail overhead. For contractors and informed DIYers, it eliminates the friction of shopping a big-box store.
