About R.M. Thornton | Mission

Quality Without Compromise

R.M. Thornton performs every job with this credo in mind. Our goal is to be the mechanical contractor that architects, engineers, general contractors and facilities-managers think of first for HVAC design/build, plumbing service, ventilation, fire protection, ductwork, or special retrofit projects.

Better People. Better Results.

Great companies start with great people, and R.M. Thornton is committed to hiring quality people. Every Thornton employee comes with a 5-year investment in the highest caliber industry training.

This people-first philosophy quickly evolves into a team-centered working style that fosters pre-planning, innovation, client feedback and participatory management. It's qualities like these and many intangibles that separate R.M. Thornton from other mechanical contractors in Washington; leading directly to a better finished project for your government building, retrofit complex, laboratory, hospital or other commercial or institutional structure.