Chicago Addition Experts

Built For Life.
FAMILY.
Done Right.

MB Home Additions & Room Additions is a family-owned general contractor crafting room expansions, home additions, and ADUs across Chicago.

✓ IL Licensed General Contractor ✓ Free Estimates ✓ On-Time Delivery
80+ Projects Completed
5 Google Rating
Licensed & Insured
100% Licensed Builds

Expert Construction company
Services in Chicago

From bump-outs to full second stories, we expand Chicago homes without moving.

Two-story rear home addition under construction in Chicago
Home Additions

We pour frost-protected foundations and frame with engineered lumber to tie new square footage seamlessly into your existing structure. Every addition is spray-foam insulated and tied into existing HVAC for consistent comfort. Our crews handle roofing, siding, and interior finish so the new space feels original. Permits and inspections are managed in-house from permit drop-off to final sign-off.

Sunroom addition with brick veneer matching original house
Room Additions

Need a sunroom that can take a Chicago winter? We cantilever foundations and install triple-pane windows rated for 50 PSF wind loads. Each room addition starts with a structural engineering review, then we match existing brick or siding for a flawless blend. Built-in electrical, recessed lighting, and LVT flooring finish the job.

Detached backyard ADU nearing completion in Chicago
ADU Construction

Convert your garage or build a detached backyard cottage. We navigate Chicago ADU zoning, setbacks, and easements to deliver fully permitted dwellings with kitchens, baths, and separate utilities. Our team installs egress windows, fire-rated assemblies, and mini-split HVAC for year-round rental income.

Open-concept kitchen after wall removal and remodel
Kitchen Remodeling

Expand the heart of your home with load-bearing wall removal and flush beam installation. We relocate plumbing and electrical to fit oversized islands, farm sinks, and commercial-grade ranges. Quartz tops, soft-close cabinets, and recessed LED coves finish the transformation.

Finished basement family room with recessed lighting
Basement Finishing

Turn unused lower level into legal living space. We install egress windows, sump pump upgrades, and moisture barriers before framing. Drywall, luxury vinyl plank, and full bath rough-in complete the conversion.

New master bathroom with frameless glass shower
Bathroom Additions

Add a master bath without sacrificing a bedroom. We rough-in new drains, vent stacks, and dedicated water lines. Tile surrounds, glass enclosures, and heated floors deliver spa comfort.

Our Simple
4-Step Process

01
Free Consultation

We visit your home, measure, and sketch a concept on the spot. You leave with a 3D rendering and ballpark budget.

02
Detailed Quote

Within 48 hours we email a line-item quote covering labor, materials, permits, and schedule.

03
Build & Inspect

Our crew handles demo, framing, rough-in, and finish work while our permit runner schedules every city inspection.

04
Final Walkthrough

We walk every room with you, provide touch-up kits, and hand over warranty binders before final payment.

What Our Clients
Say About Us

"MB transformed our narrow Bucktown lot into a two-story addition with a master suite. They matched 100-year-old brick perfectly and finished two weeks early."

Laura T.
Two-story addition — Bucktown, Illinois

"Our Andersonville kitchen went from cramped galley to open chef's space. Load-bearing wall came out, beam went in, and the permits were painless."

David M.
Kitchen expansion — Andersonville, Illinois

"We added a legal ADU above our garage in Logan Square. MB handled zoning variance, utilities, and tenant-ready finishes. Now we have steady rental income."

Nina R.
Garage ADU — Logan Square, Illinois

Ready for More Space?

Call now for a free estimate. We respond back within one business day and start most projects within four weeks.

Mon-Sat, 8am-6pm
320 W Ohio St, Chicago, IL 60654