Four Generations of Mechanical Excellence
Trusted Since 1932 - Over 90 Years of Service
Founded by Archie James Allen in 1932, AJ Allen Mechanical Contractors has been Iowa's premier mechanical contractor for over 90 years. From historic landmarks like Camp Dodge's world's largest pool to today's cutting-edge facilities, we deliver unmatched expertise backed by four generations of family ownership.
Our Mechanical Contracting Services
Comprehensive mechanical solutions for your commercial and industrial facilities
HVAC Services
Expert commercial HVAC installation, maintenance, and repair services for optimal comfort and efficiency.
Learn MoreCommercial Plumbing
Professional plumbing services for commercial properties including new construction and emergency repairs.
Learn MoreDesign-Build
Streamlined project delivery combining design expertise with construction excellence for turnkey mechanical solutions.
Learn MorePreventive Maintenance
Comprehensive maintenance programs to maximize equipment life, improve efficiency, and prevent costly breakdowns.
Learn MoreServing Central Iowa Since 1932
AJ Allen Mechanical provides comprehensive mechanical contracting services throughout the Des Moines metropolitan area.
Ready to Get Started?
Contact AJ Allen Mechanical for your commercial mechanical contracting needs