Chicago Families Trust Built Right.

Chicago Building Group Inc is a family-owned general contractor turning tight city lots into spacious homes. We specialize in home additions, room expansions, ADU builds and full-kitchen transformations across Chicago.

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General contractor project in Chicago
200+
Projects Completed
4.9
Avg Google Rating
Licensed
& Insured
Licensed
& Insured
What We Do

More Space, One Trusted Crew.

Completed two-story brick home addition on Chicago bungalow
Home Additions
Second-story pop-ups, rear bump-outs and full-width additions engineered to match 100-year-old brick and meet Chicago code. We pour frost-protected footings, frame with LVL beams, and tie new HVAC into existing ductwork seamlessly.
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Modern cedar-clad room addition with floor-to-ceiling windows
Room Additions
Sunrooms off the kitchen, master suites over garages, and 4-season dens wrapped in cedar. We flash every window per manufacturer spec and use Zip System sheathing for airtight, mold-resistant assemblies.
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New two-bedroom ADU coach house above garage in Chicago alley
ADU Construction
Coach houses and garage apartments built under Chicago’s ADU pilot program. We handle zoning compliance, dig utility laterals, and install fire-rated assemblies so your unit meets rental standards on day one.
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White-and-walnut kitchen remodel with waterfall quartz island
Kitchen Remodeling
Gut-to-studs renovations with custom inset cabinetry, quartz waterfall islands, and concealed-panel appliances. We re-route gas lines, upgrade electrical to 200-amp panels, and install LED under-cabinet lighting.
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Finished basement rec room with egress window and built-in bar
Basement Finishing
Damp-proofing, egress windows, and in-floor radiant heat turn unused basements into legal bedrooms and rec rooms. Sound-dampened ceilings keep upstairs quiet.
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Architect reviewing 3D render of home addition on large monitor
Permit & Design
Every project starts with a free 3D design consultation. Our in-house team files drawings, structural calcs, and permit packets directly with City Hall—no third-party delays.
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How We Work

Simple process, no surprises.

01
Free Consultation
We come to you, learn your goals, and answer every question. No pressure, no sales pitch.
02
Detailed Quote
A written scope of work with line-item pricing. You know exactly what you are paying for before we start.
03
We Build It
Our own crew on site, daily updates, and a clean worksite every evening. No subcontractor surprises.
04
Final Walkthrough
We walk every room with you before calling it done. You sign off, we consider it a success.
Reviews

What Chicago homeowners say.

"CBG added a 400-sq-ft family room off our kitchen. It’s seamless—you can’t tell where the old house ends and the new begins. Permits were pulled before we even signed the contract."

Denise L.
Home Addition

"They converted our two-car garage into a legal ADU rental. The inspector signed off on the first walk-through, and we had a signed lease within two weeks of completion."

Carlos M.
ADU Construction

"Our 1950s galley kitchen is now a chef’s dream with a 10-foot island and hidden walk-in pantry. They kept the vintage charm while adding every modern convenience."

Sarah K.
Kitchen Remodel
Get in Touch

Plan Your Space Today

Call (773) 396-4930 or submit your details for a free estimate. We respond within one business day.

(773) 396-4930
Chicago, Illinois — serving the surrounding area
Mon-Sat, 8am-6pm