90+ Years of Mechanical Excellence
From the Great Depression to modern Iowa - Four generations of trusted mechanical contracting
Founded During the Great Depression
Archie James Allen, Founder (1932)
In 1932, during the depths of the Great Depression, Archie James Allen founded AJ Allen Mechanical Contractors with a simple mission: provide reliable, honest mechanical services to Central Iowa businesses when they needed it most.
Starting with basic plumbing and heating repairs, Archie built the company's reputation one satisfied customer at a time. His commitment to quality workmanship and fair dealing established the foundation that would carry the Allen family business through nearly a century of service.
Even in those challenging early years, Archie understood that success came from treating every client like family and standing behind every job with unwavering integrity.
Historic Milestones
Company Founded
Archie James Allen establishes AJ Allen Mechanical Contractors during the Great Depression, focusing on essential plumbing and heating services for Central Iowa businesses.
Wartime Service
During World War II, AJ Allen supports the war effort by maintaining mechanical systems at critical defense facilities and supporting local manufacturing converted to wartime production.
Second Generation Leadership
Archie's son joins the family business, expanding services to include commercial air conditioning as Iowa businesses modernize in the post-war boom.
Commercial Expansion
AJ Allen becomes a leading commercial mechanical contractor, completing major projects throughout the Des Moines metropolitan area as the city experiences rapid growth.
Industrial Expertise
Third generation leadership expands capabilities to include complex industrial mechanical systems, establishing AJ Allen as Central Iowa's premier mechanical contractor.
Design-Build Innovation
AJ Allen pioneers design-build mechanical contracting in Iowa, offering clients streamlined project delivery and integrated mechanical solutions.
Fourth Generation Leadership
Matt Allen leads the company into its fourth generation, combining traditional craftsmanship values with cutting-edge mechanical technologies and energy-efficient solutions.
Landmark Projects Throughout Our History
For over 90 years, AJ Allen has been proud to work on Central Iowa's most important commercial and institutional projects.
Naval Air Station Ottumwa
One of our most memorable historic projects was the installation of mechanical systems at the Naval Air Station Ottumwa, including work on what was once the world's largest swimming pool at Camp Dodge. This massive undertaking showcased our ability to handle complex, large-scale mechanical installations.
Des Moines Public Buildings
Mechanical systems for numerous municipal buildings, courthouses, and public facilities throughout our 90+ year history.
Healthcare Facilities
Complex HVAC and medical gas systems for hospitals, clinics, and medical centers requiring specialized mechanical expertise.
Educational Institutions
Mechanical systems for schools, universities, and educational facilities across Central Iowa, supporting generations of students.
Industrial Facilities
Manufacturing plants, processing facilities, and industrial complexes requiring specialized mechanical and process systems.
A Legacy Built on Trust
What started as one man's commitment to honest work has become a four-generation legacy of mechanical excellence. From Archie James Allen's first plumbing repair in 1932 to today's sophisticated commercial projects, the Allen family has never wavered from its founding principles:
Unwavering Quality
Every project, from the smallest repair to the largest installation, receives the same commitment to excellence that Archie James Allen established in 1932.
Family Values
Four generations of family leadership has maintained our personal approach to client relationships and our commitment to treating every customer like family.
Community Investment
For over 90 years, we've been proud to contribute to Central Iowa's growth and prosperity through our work on the region's most important buildings and facilities.
Become Part of Our Continuing Story
Join the thousands of satisfied clients who have trusted AJ Allen Mechanical Contractors with their most important projects since 1932.