# All Season Plumbing, Heating, and A/C, Inc. All Season Plumbing, Heating, and A/C, Inc. is a backflow tester with an address in Bladensburg, MD, United States. All Season Plumbing, Heating, and A/C, Inc. appears on the DC Water register (Registered Backflow Prevention Assembly Service Provider), with an address in Bladensburg, MD. Services named in the source: backflow prevention assembly commercial installer, backflow prevention assembly commercial inspector, backflow prevention assembly residential installer, backflow prevention assembly residential inspector. ## Details - Address: 4210 49th St, Bladensburg, MD, 20710, United States - Phone: [13012771313]() - Website: [www.allseasonsplumbingheating.com/]() - Source of the listing data: DC Water — Registered BPA Service Providers, https://www.dcwater.com/sites/default/files/engineering/bpa-service-providers.xlsx, fetched 2026-11-10. Website, street address, map pin from Overture Maps Places (CDLA-Permissive-2.0, release 2026-10-21.0). ## Questions ### Where is All Season Plumbing, Heating, and A/C, Inc.? All Season Plumbing, Heating, and A/C, Inc. is at 4210 49th St, Bladensburg, MD, 20710, United States. ### How do I contact All Season Plumbing, Heating, and A/C, Inc.? To contact All Season Plumbing, Heating, and A/C, Inc., call 13012771313 or visit https://www.allseasonsplumbingheating.com/. ## Source From [Backflow tester registers and portals](https://www.dcwater.com/sites/default/files/engineering/bpa-service-providers.xlsx), license Registers and portals: no specific reuse licence identified. See per-register terms in notes., checked 2026-11-11. Last updated November 11, 2026. ## Links - This backflow tester on the [web page]() - [Backflow installation in Bladensburg]() - [More backflow testers in Bladensburg]()