Underwood Energy

At Underwood Energy, Inc., we’re more than just a propane company—we’re a legacy of service, expertise, and determination. Founded in 2021 by Sean Underwood, a third-generation gas industry professional. Underwood Energy was born out of a pivotal time in Sean’s life. When changes within the family business, Poist Gas Co., reshaped its future, Sean seized the opportunity to carve his own path and build something greater. With 20 years of hands-on experience in the gas industry and a lifetime of passion for efficient, reliable energy, Sean set out to establish a new standard for propane services in the DMV area. His mastery of blue-collar trades—from SME pipe welding and plumbing to HVAC—combined with his dedication to innovation, has positioned Underwood Energy as a leader in the industry. In just a few short years, Underwood Energy has become a household name across Central Maryland. We offer better pricing, faster service, and friendlier, more knowledgeable team members than our competitors. Our licensed professionals are experts in installing propane tanks, as well as delivering and maintaining them with unmatched precision and care.