Chicago's Dedicated Home Addition Specialists

Chicago Home Additions was founded in 1999 with a single focus: building high-quality home additions for Chicago homeowners who have outgrown their space but love their neighborhood. Over 25 years later, that focus has not changed. Every member of our team is a licensed contractor with years of hands-on experience completing all kinds of home additions, from garage builds in Beverly to second-story expansions in Wicker Park.

We have deliberately stayed specialized. We do not chase every trade or pad our revenue with maintenance contracts. We build additions, we do it well, and we stand behind every project with full licensing, written quotes, and complete permit documentation. Our 4.8-star rating on Google reflects the standard our clients have come to expect, and the standard we hold ourselves to on every single job.

Chicago Home Additions construction crew at work
Est.
1999

"I started this company because I believed Chicago homeowners deserved a contractor who showed up on time, told them the truth about costs, and built additions that would last 50 years. That is still the only thing we do, and it is still the only thing we care about getting right."

Frank Kellerman, Founder

The People Behind Every Project

Our core team has been building additions together for over a decade. No strangers show up at your job site.

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Frank Kellerman
Founder and Project Director

Frank has been building home additions in Chicago for over 25 years. He personally oversees every project scoping and permit process, ensuring each build meets his standards before ground is broken.

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Maria Okonkwo
Lead Estimator

Maria manages all client quotes and written proposals. She has spent 12 years working with Chicago's building department and knows exactly what each project requires before a permit is filed.

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Danny Lund
Crew Foreman

Danny leads our on-site crews with 18 years of Chicago construction experience. He sets the daily schedule, coordinates inspections, and keeps every project on track from first pour to final walkthrough.

Our Values

Craft Without Shortcuts

We use the same materials, framing methods, and finishing standards on every project regardless of budget tier. A Chicago home deserves to be built correctly, and we have never been willing to compromise on that.

Full Accountability

Every project is fully permitted, inspected, and documented. When we hand you the keys to your new addition, you receive a complete permit package so your investment is protected for any future sale or insurance claim.

Honest Pricing

The number on your written quote is the number you pay, assuming the scope does not change. We review any adjustments with you before proceeding. Surprise invoices at the end of a project are not something we do.

17+ Projects Completed
4.8 Google Rating
20+ Years in Business
100% Permitted Builds
BUILT

Let's Talk About Your Project

Free estimate, no pressure. We'll come to you, assess the job, and give you a written quote within 48 hours.

Request a Free Estimate