Thompson Supply Company

Thompson Supply Company operates as a heating equipment supplier in Overland, Missouri, serving the greater St. Louis metro area including nearby communities. With a 4.5-star rating compiled from 44 customer reviews, this locally owned business has built a reputation for providing parts and guidance directly to homeowners rather than exclusively to licensed contractors. The store maintains weekday hours from 8:30 AM to 4 PM with Saturday availability until 11 AM, offering emergency access that reviewers specifically cite as valuable during equipment failures on evenings or weekends. Customers can reach the shop at (314) 423-3700.

What distinguishes Thompson Supply Company from typical wholesale distributors is their willingness to sell directly to the public and their hands-on approach to customer education. Multiple reviewers describe staff members walking them through diagnosis, part selection, and installation procedures while they shop. The inventory includes hard-to-find components like furnace gas valves kept in stock, a detail that proved critical during the coldest day of the year for one reviewer who avoided a $1,000 contractor quote by purchasing the part directly. Staff demonstrate product knowledge across brands and equipment ages, with one reviewer noting help locating a equivalent motor for a 1988 furnace.

Customer stories from reviews reveal specific scenarios where the team exceeded expectations. When Vaughn's capacitor failed during a 100-degree weekend, the Saturday morning opening prevented a multi-day wait or expensive emergency HVAC service call. David provided same-day assistance for a dual run capacitor issue that saved a customer approximately $700 in labor costs. For Michael Moore, the team had a gas valve in stock with thread sealant included, transforming a potential multi-day repair into a same-afternoon fix. The consistent thread across reviews involves staff named David and Mr. Mohler providing patient, knowledgeable guidance that enables DIY repairs most other suppliers would not attempt.