Est. 1977
Interior Alterations began in 1977 as just two carpenters with a firm belief that high-quality craftsmanship is only attainable if you have great client-contractor relationships. Over the years our clients and employees have grown, but our longevity is due to a steadfast adherence to integrity and open communication.
What We Do
Why IAI
Decades of experience working within Chicago's most complex historical and landmark properties, navigating the nuances of preservation and adaptive reuse.
Long-term partnerships with Chicago's best tradespeople — union-affiliated, trusted, and accountable — ensure quality and reliability on every project.
Nearly five decades of proven results and over 20 million square feet constructed — a track record you can build on.
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