When your family outgrows your home, you do not have to move. Crestline Remodeling designs and builds seamless home additions that expand your living space while maintaining the architectural integrity of your existing home. From single-room bump-outs to full second-story additions, we handle structural engineering, permitting, and construction under one roof.

Room Additions

Expand your kitchen, add a family room, or create a new primary suite with an addition that blends seamlessly with your existing home.

Second-Story Additions

Double your living space by building up. Our structural engineers ensure your existing foundation and framing can support the expansion.

Sunrooms & Four-Season Rooms

Glass-enclosed living spaces with climate control for year-round enjoyment of natural light and garden views.

Bump-Outs

Small-scale expansions that add 50-150 square feet to a kitchen, bathroom, or bedroom without a full foundation pour.

In-Law Suites

Self-contained living quarters with a bedroom, bathroom, kitchenette, and private entry for extended family or rental income.

Garage Conversions

Transform an attached garage into a living space, home gym, or studio while maintaining or replacing vehicle storage.

Why Invest

Why Home Additions?

Home additions in the Chicago area typically cost between $200 and $400 per square foot, depending on the complexity and finishes. While the upfront investment is significant, additions allow you to stay in a neighborhood you love, avoid the costs and disruption of moving, and add substantial equity to your property.

Free in-home consultation and design
Fixed-price contracts with no surprises
Dedicated project manager throughout
5-year workmanship warranty

Our Process

How Your Home Additions Project Works

01

Feasibility assessment and site evaluation

02

Architectural design and engineering

03

Village permitting and HOA coordination

04

Foundation and structural work

05

Framing, roofing, and exterior finishing

06

Mechanical, electrical, and plumbing

07

Interior finishing and integration

08

Final inspection and certificate of occupancy

Related Services

Ready for Your Home Additions Project?

Contact us today for a free, no-obligation estimate. We serve Chicago and the entire North Shore.

(224) 343-1992

Home Additions in Chicago & the North Shore