Douglas & Son Services

About

Get to Know Douglas & Son Services | Trusted Plumbing & HVAC Expertise Douglas & Son Services is a premier provider of unsurpassed plumbing, heating, and cooling solutions for residential and light commercial properties throughout Poolesville, Potomac, Rockville, MD, and the surrounding areas. We consistently go above and beyond to deliver exceptional results across every project we touch. Whether you are breaking ground on new home construction, remodeling your existing living space, or simply keeping up with routine property maintenance, our dedicated team is here to guide and support you every step of the way. When you partner with us, you are choosing an affordable, highly professional team committed to safeguarding your property's comfort and mechanical infrastructure. 🛠️ Meet Our Business Owner & Mechanical Expert E. Shawn Douglas is the president of Douglas & Son Services. As a credentialed Master Plumber, Gas Fitter, and HVAC Technician with over 30 years of hands-on industry experience, Shawn brings an uncompromised level of trade mastery to your doorstep. Over the past two and a half decades, he has dedicated his career to providing top-tier residential and light commercial mechanical services throughout Washington D.C., Maryland, and Virginia. Fully licensed, bonded, and insured, Shawn and his team are uniquely prepared to manage mechanical jobs of all sizes and complexities with total safety and precision. 📜 Uncompromised Compliance: Core Professional Credentials At Douglas & Son Services, we prioritize absolute accountability and adherence to local safety codes. Our team holds elite master-level licenses across multiple state jurisdictions: Maryland Master HVACR: #87351 Washington Suburban Sanitary Commission (WSSC): Master Plumber/Gasfitter #PFG-74102 Washington, D.C. Plumber/Gasfitter Contractor License: No. PC40000022 Virginia Contractor's License: Class A #2705178052 Virginia Master Plumber/Gasfitter/HVAC: #2710061927 Certified Backflow Prevention Technician: #T16-22-07 & Virginia Backflow Worker #2717058300 EPA UNIVERSAL Technician: Certified under 40 CFR Part 82, Subpart F (Type I, II, and III) #101152441 Note: The core credentialing listed above represents our primary state-level authorities and does not exhaustively display all local municipal or jurisdictional licenses held, which can be gladly provided upon request. 💎 Why Local Homeowners & Businesses Rely On Us Three Decades of Field Mastery: Benefit from a deep pool of diagnostic knowledge that ensures accurate, long-lasting fixes the first time around. Tri-State Versatility: Seamlessly serving communities across D.C., Maryland, and Virginia with fully equipped service vehicles. Full-Scale Adaptability: Equipt to handle everything from minor residential pipe leaks and seasonal AC tune-ups to major commercial multi-system overhauls. 📋 Work With Douglas & Son Services Today Don't gamble on the comfort, safety, and efficiency of your property's plumbing or HVAC layout. Partner with a deeply credentialed master tradesman who guarantees professional, affordable, and honest service.