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 Lake Forest home additions
Market Square, Lake Forest College, Onwentsia Club, Ragdale, Elawa Farm, Forest Park Beach, Gorton Community Center, Deerpath Golf Course
Home additions in Lake Forest, IL
GS Construction provides expert remodeling services to homeowners in Lake Forest and throughout Lake County. We specialize in transforming kitchens, bathrooms, and entire homes with quality craftsmanship and attention to detail. Contact us to discuss your remodeling project in Lake Forest.
Lake Forest permits & building codes for home additions
The City of Lake Forest issues its own building permits, and homes in the city's five local historic districts — or designated landmarks — also need a certificate of appropriateness from the Historic Preservation Commission before exterior alterations, additions, or demolition can proceed. One homeowner-friendly wrinkle: the city waives permit fees when a project includes replacing a lead water service line. GS Construction manages the full permit process for Lake Forest projects, from historic-review submittals through final inspections.
How your Lake Forest 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 Lake Forest Love Us
Real reviews from homeowners. Ask us for live phone references.
GS Construction & Remodeling is the best of the best. We've hired them to work on 5 different properties (4 were extensive remodels) and continue to be thrilled with their work and have referred them to friends and family. I constantly bring to them pictures/ideas from Houzz & Pinterest and ask how we can duplicate high end looks on a budget and they pull it off - magnificently - every time. Not only do they know their craft, but they have a great design sense as well and make suggestions that always enhance the project. Their communication (providing estimates for changes as we go along, keeping in touch regarding scheduling, etc.) is excellent. They're nice people and incredibly respectful too - top notch all around.
Before & After & Timelapse
What homeowners near Lake Forest say
“GS Construction & Remodeling is the best of the best. We've hired them to work on 5 different properties (4 were extensive remodels) and continue to be thrilled with their work and have referred them to friends and family. I constantly brin...”
“They did an outstanding job on our complete bathroom renovation! Our bathroom was an icebox due to poor insulation from the original build. They made excellent design recommendations to resolve the poor insulation and also installed heated...”
“In a word, superb. This is the first time I've taken the trouble to review a contractor. We hired GS Construction to remodel a bathroom. The job took about 3 weeks; during that time, they were always on time and didn't miss a single day. Th...”
Budgeting first? See real 2026 price ranges in our home additions cost guide — and what your Lake Forest permit will add in our permit guide.
Completed projects around Lake Forest
GS Construction crews have completed 59 projects within 10 miles of Lake Forest — 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 Lake Forest
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 Lake Forest. 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
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Service Area
Lake Forest and surrounding Chicagoland areas