W. L. Gary Company, Inc.

W. L. Gary Company, Inc. has served Washington, D.C. and Lanham, Maryland since 1895, making it one of the capital region's oldest continuously operating mechanical contractors. The firm holds Maryland HVAC License 004 and maintains a fabrication shop in Lanham, offering both plumbing and HVAC services to commercial and residential clients. With 12 reviews averaging 3.3 stars, the company operates Monday through Friday 7AM to 4:30PM and Saturday 7AM to 5:30PM, providing 24-hour emergency service for urgent HVAC and plumbing issues.

What distinguishes W. L. Gary is its expertise in mission-critical systems and variable refrigerant flow (VRF/VRV) technology, which serves facilities requiring precise climate control such as operating rooms and data centers. The company maintains MSCA Green Star Contractor certification and offers specialized services including hydro-jetting for stubborn drain clogs and backflow prevention installation. Their design-build division handles projects from initial engineering through full installation, serving as a single-source contractor for complex mechanical systems.

Reviewers who named specific technicians report mixed experiences. Barbara Jensen praised the company's competent plumbers who "go the extra mile" for major clogs and leaks, while Linda Escribano called out their in-house staff for staying on top of situations across half a dozen visits in less than a year. However, James Higgins reported opaque pricing policies including charges for automated invoice generation and a full-day equipment rental for a device used under an hour, concluding he would "never darken their doorstep again." John Yeung described being charged for a visit without prior disclosure of rates or a service charge.