Since 1999 Chicago Home Additions has been the go-to crew for Chicago homeowners who need room additions, garage expansions, and full attic conversions.
We focus on three things: more space, better flow, and Chicago-style durability.
We pour frost-depth footings, match existing brick coursing, and tie steel into existing foundation so your new family room feels original. R-21 insulation, 3/4-inch subfloor, and rooflines that shed Lake Michigan snow without ice dams. Every permit pulled, every beam engineered.
Get a QuoteNeed a main-floor office or a second-story primary suite? We cantilever LVL beams over existing walls, route new HVAC through joists, and land electrical on a 200-amp panel upgrade. Drywall hung with screw pattern per Chicago code, finishes matched to existing trim profiles.
Get a QuoteFrom tuck-under two-cars to standalone three-car with loft storage. We pour 4,000 PSI concrete slabs, frame walls with pressure-treated bottom plates, and install R-13 insulated overhead doors rated for 50,000 cycles. Built tall enough for SUV lift clearance.
Get a QuoteWe keep overhead low and quality high so you get the biggest ROI in the city.
Every carpenter, electrician, and mason on our team carries an active Illinois license. No subs you've never met. One crew, start to finish.
We buy lumber and steel in bulk and pass the savings straight to you. Detailed line-item quotes, zero change-order surprises.
Top-grade LVL beams, James Hardie siding, and copper step flashing. We build once and build right so you never chase leaks or sagging floors.
We let the work speak — but here's what a few clients have said after moving back in.
"Chicago Home Additions turned our 1920s attic into a legal third bedroom with egress window and walk-in closet. Passed inspection on the first try and finished three days early."
"We needed a mudroom off the kitchen plus a half-bath. They matched the existing Chicago common brick so well our neighbors asked if it was always there."
Call (773) 945-6331 for a free on-site estimate. We usually respond within two hours.
Request a Free Estimate