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
"Your Home Additions project deserves the best—we deliver it."
Neighborhoods & landmarks near our Northfield home additions
New Trier High School Northfield Campus, Sunset Ridge Country Club, Clarkson Park, Willow Park, Fox Meadow Park, Northfield Community Center, Northfield Village Center on Happ Road, Edens Expressway at Willow Road
Home additions in Northfield, IL
GS Construction provides expert remodeling services to homeowners in Northfield and throughout New Trier Township. As a family-owned and operated contractor with deep roots in the Chicago suburbs, we understand the unique needs of North Shore homes.
Northfield permits & building codes for home additions
Remodeling projects in Northfield go through the Village's Community Development Department at 361 Happ Road, which handles plan review, permit issuance, and inspections. New construction, additions, and remodels require a building permit application plus separate electrical, plumbing, and HVAC applications, along with a floor area ratio worksheet and tree preservation review where applicable. The Village also enforces construction hours — weekdays 7 am to 7 pm, Saturdays 9 am to 5 pm, and Sundays and holidays noon to 5 pm. GS Construction manages the entire permit process, from application packets and plan review through inspection scheduling.
How your Northfield project runs
ProcessThe same six stages on every job — free in-home estimate through warranty.
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.
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.
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.
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.
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.
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 Northfield Love Us
Real reviews from homeowners. Ask us for live phone references.
We have used GS for two bathroom projects-the first a small update; the second a complete remodel. We were thrilled with both. Everything was as promised; the timeline, price, and what it would look like. We were able to buy our own tile and fixtures and were not tied to any company's showroom. We got what we wanted and likely saved money doing so. GS also installed interior doors. The workmanship was great. The only downside is that now the bathrooms are the two nicest rooms in the house! I would heartily recommend GS construction!
Before & After & Timelapse
What homeowners near Northfield say
“We have used GS for two bathroom projects-the first a small update; the second a complete remodel. We were thrilled with both. Everything was as promised; the timeline, price, and what it would look like. We were able to buy our own tile an...”
“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 an...”
“My designer and I chose GS Construction for the rehab of my kitchen and other small projects in my newly purchased condo. They were recomended by a client of the designer, Mark Zancanaro Design, who raved about their professionalism and com...”
Budgeting first? See real 2026 price ranges in our home additions cost guide — and what your Northfield permit will add in our permit guide.
Completed projects around Northfield
GS Construction crews have completed 107 projects within 10 miles of Northfield — part of 409 completed projects across 68 Chicago-area ZIP codes. The map below shows real project density from our records, not a service-area claim.
More Remodeling Services in Northfield
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 Northfield. 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
- [email protected]
- Service Area
-
Service Area
Northfield and surrounding Chicagoland areas