Wilmette Basement Remodeling

Finished basement family room with a leather sofa, recessed lighting, carpet and built-in desk — representative of the finished basement projects GS Construction builds in Wilmette, IL

Basement Remodeling Experts

Expert Basement Remodeling Services

GS Construction & Remodeling specializes in professional Basement Remodeling. 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 Basement Remodeling 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 Basement Remodeling 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 Basement Remodeling project deserves the best—we deliver it."

Neighborhoods & landmarks near our Wilmette basement remodels

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

Basement finishing in Wilmette, IL

GS Construction provides complete remodeling services to homeowners in Wilmette and throughout New Trier Township. We are a family-owned and operated remodeling contractor with decades of experience serving the northern suburbs of Chicago. Call us for kitchen, bathroom, or whole-home renovations.

East Wilmette is pre-war to its brick streets: the CAGE neighborhood — named for Chestnut, Ashland, Greenwood, and Elmwood — holds colonials, Tudors, Victorians, and foursquares built from the 1890s to the 1930s, a short walk from Gillson Park and the 1928 Spanish Court arcades of Plaza del Lago. Farther west, the stock turns mid-century near Edens Plaza. GS Construction remodels both eras: kitchens that open compartmented pre-war plans, baths and basements that retire galvanized supply lines and tired drain tile, and additions and whole-home projects scaled to Wilmette lots. One Wilmette-specific note: the Village's 2024 policy replaces its roughly 2,200 remaining lead service lines at no cost through the village-wide program — but a replacement triggered by an addition or service upgrade is the owner's expense, so we time that piece deliberately. Most of the village feeds District 39 and then New Trier, with the Metra UP-N and the Purple Line's Linden terminal handling the commute.

Wilmette permits & building codes for basement remodels

Wilmette permits go through Community Development at 1200 Wilmette Avenue — paper submittals are preferred (electronic filings take longer to issue) — with a published goal of 10 business days per reviewer for first review. Plans need an Illinois architect's or structural engineer's stamp for structural work or projects over $25,000, reviewers can require one even below that for kitchens, baths, and basement remodels, and every contractor on the permit must hold a Wilmette contractor license before issuance. Exterior work on a designated Wilmette landmark needs a no-fee Certificate of Appropriateness from the Historic Preservation Commission first, and the village also maintains an Appearance Review Commission for design review. GS Construction manages the full permit process — applications, stamped drawings, contractor licensing, and phone-scheduled inspections — on every Wilmette project.

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 →

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

Completed projects around Wilmette

GS Construction crews have completed 92 projects within 10 miles of Wilmette — part of 410 completed projects across 68 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 specializing in residential remodeling and renovations in Wilmette. 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.

Basement Remodeling Coverage Around Wilmette

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

Local ZIP coverage