Home Additions in Rockford, IL
Additions are where quality contractors show. Matching an existing roofline, siding and floor plate takes real craftsmanship — and it's what we've done for 40+ years across Rockford, Loves Park and Belvidere.
What's included
- First-floor additions
- Second-story additions
- Sunrooms & three-season rooms
- Mudrooms & entryways
- Master suite additions
- Garage additions
Materials we work with
- Matched siding & shingles
- Andersen windows
- Engineered floor systems
Our process
- 1Feasibility
We check zoning, setbacks and foundation options first.
- 2Design & permits
Full architectural and engineering, permits pulled.
- 3Tie-in
Roof, siding and floor tie-in done right so it looks like it was always there.
- 4Finish & warranty
1-year labor warranty on the entire addition.
FAQs
Can you match my existing siding?
Yes — matching or blending existing siding, brick and shingles is standard on every MGK addition.
Other services
Kitchen Remodeling
Full-service kitchen remodels in Rockford, Loves Park, Belvidere and surrounding areas. Custom cabinetry, quartz counters, licensed & insured.
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Bathroom Remodeling
Master suites, guest baths and accessible walk-in showers across the Rockford area. Tile, plumbing, vanities — one crew, one warranty.
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Custom Home Building
Ground-up custom homes on your lot in Winnebago, Boone and Rock County. Full architectural, permits and construction management.
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Serving Rockford, Loves Park, Machesney Park, Belvidere & more
Get your free quote today.