Wilmette Home Additions

Rear home addition under construction with new masonry walls and windows going in — representative of the home addition projects GS Construction builds in Wilmette, IL

Home Additions Experts

Expert Home Additions Services

GS Construction & Remodeling specializes in professional Home Additions. As a father-son team, we bring decades of combined experience to every project.

From the first walkthrough to the last punch-list item, Greg or Patryk runs your Home Additions project themselves. That means a scope written out line by line instead of one number, permits pulled and handled with your village, and the same faces on site rather than a crew you've never met.

  • Specialized Home Additions expertise
  • On-site supervision for every project
  • Transparent pricing with no surprises
  • Quality craftsmanship guaranteed
Gregory and Patryk - GS Construction
Gregory and Patryk - GS Construction
"Your Home Additions project deserves the best—we deliver it."

Neighborhoods & landmarks near our Wilmette home additions

Baha'i House of Worship, Gillson Park, Plaza del Lago, Wilmette Historical Museum, Edens Plaza, Linden Purple Line terminal, Wilmette Metra station (UP-N), New Trier High School, Centennial Ice Arena

Neighborhoods we work in

  • Indian Hill Estates
  • Kenilworth Gardens
  • Cumnor Road
  • Westmoreland
  • Mallinckrodt
  • Lindenwood
  • McKenzie
  • Wilshire
  • Ridgeview

Home additions in Wilmette, IL

Home additions in Wilmette often involve expanding the footprint of classic pre-war homes in areas like CAGE, where smaller original layouts benefit immensely from added space. For these Victorians, Tudors, and Colonials, a typical addition transforms a cramped kitchen into an open-concept living area or provides much-needed extra bedrooms on an upper floor. Homes built mid-century, common further west, frequently see additions designed to create larger family rooms, home offices, or primary suites that were less common in their original designs. Many Wilmette homeowners seek to retain the charm and architectural integrity of their existing property while seamlessly integrating new, functional spaces. This balance requires meticulous planning to match rooflines, exterior materials, and interior transitions.

What Wilmette homeowners ask for

Wilmette homeowners frequently request two-story additions to expand upward, often adding new bedrooms, bathrooms, or a dedicated primary suite above an existing footprint. Ground-level expansions are also common, particularly to enlarge kitchens, create mudrooms, or add sunrooms that blend indoor and outdoor living. For many, the goal is to enhance livability and accommodate growing families without sacrificing the home's historic character.

About Wilmette

Wilmette offers a diverse architectural tapestry that speaks to its long history as a desirable North Shore community, and GS Construction is intimately familiar with the nuances of remodeling homes across its distinct eras.

How your Wilmette project runs

Process

The same six stages on every job — free in-home estimate through warranty.

1

Free in-home estimate

Greg or Patryk — the owners, not a salesperson — walk your space, take real measurements, and give you honest feedback on what your budget buys.

2

Itemized scope & contract

Labor, materials, demolition and disposal priced line by line, not one mystery number. Payment terms and warranty are in the written contract.

3

Design & selections

Bring your own designer, use our architects and designers, or choose everything yourself. Selections are scheduled ahead so lead times never stall the site.

4

Permits & scheduling

We pull and manage building, plumbing and electrical permits with your village — typically 1–2 weeks — and hand you a written schedule before demo day.

5

The build, owner-supervised

Long-standing trade partners working in sequence under daily owner supervision. Your client portal shows the schedule, change orders and current balance.

6

Walkthrough & warranty

We walk the finished job together, close out every punch-list item, hand over manufacturer paperwork, and your written workmanship warranty starts. Our commitment never expires.

Testimonials

Your Neighbours in Wilmette Love Us

Real reviews from homeowners. Ask us for live phone references.

We cannot say enough good things about GS Construction and about Greg and Patryk. We hired them on a strong recommendation from a friend and are very pleased with the results. Our project included remodeling a kitchen and master bathroom and adding wood floors to several rooms in our condo. We had definite ideas of what we wanted since we have done many remodeling projects in several previous homes, but both Patryk and Greg added great value with suggestions and ideas of their own based on their experience and talent. Their follow through was excellent and we feel confident that if anything needs attention, they will be there to make it right. P.S. They did a great clean up at the end of the project......i

Madelyn & John K Wilmette, IL Sep 2017 Kitchen

Before & After & Timelapse

What homeowners near Wilmette say

Read more homeowner reviews near Wilmette →

Home Additions stories from the blog

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Budgeting first? See real 2026 price ranges in our home additions cost guide — and what your Wilmette permit will add in our permit guide.

Completed projects around Wilmette

GS Construction crews have completed 100 projects within 10 miles of Wilmette — part of 429 completed projects across 69 Chicago-area ZIP codes. The map below shows real project density from our records, not a service-area claim.

Click to explore map
Gregory and Patryk - GS Construction
Gregory and Patryk - GS Construction

Contact GS Construction

Let's Build Beautiful Spaces Together

GS Construction is a father-and-son construction company, and home additions in Wilmette is work Greg and Patryk run themselves. Expect clear communication, quality craftsmanship, and a straightforward plan—reach out today to schedule a free in-home consultation and get a detailed estimate and honest feedback.

Telephone
(224) 735-4200
Service Area
Service Area
Wilmette and surrounding Chicagoland areas

Please select at least 2 different days and times you're available to meet.

Our crew puts in long days on site, so early morning and daytime consultations suit us best — thank you for understanding. If only a weekday late afternoon or Saturday morning works for you, please mention it in your message above.

Pick a few times above so we can find one that works — 3 across 2 different days.

Home Additions Coverage Around Wilmette

We provide home additions in Wilmette and nearby communities to keep schedules, crews, and permitting coordination efficient.

Local ZIP coverage