Providing complete mechanical subcontractor services

Professional Integrity and technical expertise

Since 1932, RM Thornton┬áhas been providing mechanical construction services for some of Washington’s most-prestigious commercial, industrial and institutional HVAC and plumbing projects. With the help of our experienced industry professionals, whose goal it is to perform every job with the craftsmanship and outstanding customer service in mind, we have become the go-to mechanical contractor in the Washington metropolitan area. Our team always works hard to ensure the quality products we deliver are on time and within budget.