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."
Permits in River Forest: The Village of River Forest requires building permits for remodeling work — structural, electrical, and plumbing changes included — with applications submitted through its online permit portal at riverforest.onlama.com.
Neighborhoods & landmarks near our River Forest home additions
Frank Lloyd Wright's Winslow House, Dominican University, Concordia University Chicago, River Forest Public Library, Thatcher Woods, Keystone Park, River Forest Metra station (UP-W), River Forest Town Center
Neighborhoods we work in
- Forest Avenue
- Keystone Avenue
- Lathrop Avenue
- Thatcher Avenue
- Quick Avenue
Home additions in River Forest, IL
Expanding a home in River Forest often means thoughtfully integrating new space into existing structures that span a century of architectural styles, from the stately Victorians and gracious Prairie homes near Thatcher Woods to the robust brick Colonials lining the village's older streets. Adding onto these residences demands a keen understanding of their original design principles, whether extending a rear facade for a larger family room or building upward to create new bedrooms. The challenge lies in seamlessly blending new construction with the home's established character, ensuring the addition feels original rather than tacked on. This involves careful consideration of rooflines, foundation integration, and exterior material matching to maintain the aesthetic integrity of these cherished properties. Whether it’s a two-story addition to expand living areas or a single-story sunroom, the goal is always a harmonious extension that enhances both functionality and curb appeal.
What River Forest homeowners ask for
River Forest homeowners frequently request two-story additions to expand bedrooms and create new primary suites, particularly in homes with smaller original footprints. Many also seek single-story family room additions that open to the rear yard, often incorporating large windows to maximize natural light and views. For those with growing families, expanding the kitchen footprint with an adjacent mudroom or pantry is a common request, reflecting a need for more practical space.
About River Forest
River Forest is an architecture town, with a deep stock of Victorian, Prairie, and brick Colonial homes from the village's 19th- and early-20th-century growth. Remodeling here is a balancing act — reworking century-old floor plans while keeping the woodwork, masonry, and street-facing character that give these houses their value.
Frank Lloyd Wright's first independent commission, the Winslow House, stands on Auvergne Place, Prairie School architect William Drummond lived and built here, and the streets near Thatcher Woods carry a deep stock of Victorian, Prairie, and brick Colonial homes from the village's 19th- and early-20th-century growth.
The village's 19th- and early-20th-century growth near Thatcher Woods, featuring Victorian, Prairie, and brick Colonial homes, often means working with established lot sizes and setbacks that predate modern zoning, requiring careful planning for any expansion. Additions to these homes must respect existing rooflines and foundations to seamlessly integrate with the historical character and avoid the appearance of being tacked on. For homes with century-old floor plans, connecting new additions to existing plumbing requires consideration of the Village's Lake Michigan water system and its "Get the Lead Out" program. The Village reviews exterior changes to maintain the street-facing character and value of these properties, ensuring new construction is harmonious with the original design. Expanding homes by Prairie School architect William Drummond or near Frank Lloyd Wright's Winslow House on Auvergne Place means a heightened focus on architectural integrity during the review process.
Home additions in River Forest trigger structural, electrical, mechanical, and plumbing inspections throughout the construction process, requiring careful coordination with the Village's building department. GS Construction & Remodeling manages the complete application process, including submitting detailed architectural plans and scheduling all necessary inspections.
How your River 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 River Forest Love Us
Real reviews from homeowners. Ask us for live phone references.
I cannot say enough good things about GS Constructions / Greg and Patryk Szady. From the start, their proposal and cost estimate was broken down, item by item, which most contractors don't do. It allowed us to alter our project to fit our budget. Patryk also took the time to explain costs to us and help us get what we wanted for the price we could afford. Once we hired GS, they kept to their timeline, and they focused on our project. Each day we knew when to expect workers (who came on time!) and at the end of each day, we could see real progress. The crews that came to do the work were courteous, respectful of our space, and they cleaned up after themselves. Patryk and Greg didn't just show up once or twice; they were there throughout the project, and were alway helpful in answering questions, addressing concerns, and making it feel like my project was their main focus. Most importantly, the finished product was beyond our expectations. Patryk and Greg really pay attention to detail and are willing to go the extra mile to make things perfect. From exact tile or light placement, to thinking about how cabinets will sit near a doorway, to vent color, they thought of and addressed issues I hadn't even considered, and they made it look perfect, even when that meant more work for them. When I picked a paint color I ended up not loving, they offered to repaint even though it was my mistake. When I picked a wall mounted faucet known for being difficult, they spent hours trouble shooting water pressure and placement in order to get it just right. When the project was all done, Patryk and Greg followed up a few weeks later to make sure we were happy, and come back and address small punch list items that we realized only after living in the space again. It is this kind of attention to satisfaction and attention to detail that is rare to find in this industry, and it makes Patryk and Greg an absolute pleasure to work with. I have recommended them to others we have been equally happy. TL;DR: GS Construction was on time and on budget, and their prices are competitive and fair. Their work was absolutely beautiful, and we couldn't be more pleased. After this experience, I honestly would not use anyone else. I will be a returning customer for life.
Before & After & Timelapse
What homeowners near River Forest say
“I cannot say enough good things about GS Constructions / Greg and Patryk Szady. From the start, their proposal and cost estimate was broken down, item by item, which most contractors don't do. It allowed us to alter our project to fit our b...”
“GS Construction worked on my condo renovation. Patryk had wonderful insight on details that that other potential contractors didn't even think of. They took all surprise issues in stride, and solved them before I even knew about the issues!...”
“You will not regret choosing GS Construction & Remodeling. We are beyond happy with our condo remodel, and it is all thanks to Greg, Patryk, and their team of hardworking and meticulous professionals. We completely remodeled our two bedroom...”
Home Additions stories from the blog
Kitchen Remodel · Barrington, IL
A Bright, Hardworking Kitchen Renovation in Barrington, IL
This kitchen renovation in Barrington, IL, completed in 2021, shows the kind of bright, hardworking space we love to build, centered around a striking gray island.
Sep 4, 2026
Kitchen Remodel · Hoffman Estates, IL
Hoffman Estates Kitchen & Wet Bar: A Bright, Cohesive Renovation
We transformed a kitchen, wet bar, and living room in Hoffman Estates, IL, creating a bright, updated space with white shaker cabinets and granite counters.
Sep 4, 2026
Kitchen Remodel · Palatine, IL
Palatine Kitchen Renovation: Dark Wood, Granite, and a Mosaic Accent
This Palatine kitchen renovation showcases rich dark wood cabinetry, elegant granite countertops, and modern stainless steel appliances.
Sep 4, 2026
Budgeting first? See real 2026 price ranges in our home additions cost guide — and what your River Forest permit will add in our permit guide.
Completed projects around River Forest
GS Construction crews have completed 72 projects within 10 miles of River Forest — part of 458 completed projects across 71 Chicago-area ZIP codes. The map below shows real project density from our records, not a service-area claim.
Contact GS Construction
Let's Build Beautiful Spaces Together
GS Construction is a father-and-son construction company, and home additions in River Forest 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
- [email protected]
- Service Area
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Service Area
River Forest and surrounding Chicagoland areas