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 Northlake home additions
West Leyden High School, Northlake Public Library District, Centerpoint Preserve, Grant Park Recreation Center (Veterans Park District), North Avenue (IL 64), Lake Street (US 20), Wolf Road, I-294 North Avenue interchange
Home additions in Northlake, IL
GS Construction provides expert remodeling services to homeowners in Northlake and across Leyden Township. We are a family-owned and operated contractor specializing in kitchen, bathroom, and whole-home renovations. With decades of experience, we bring quality craftsmanship to every Northlake project.
Northlake permits & building codes for home additions
Remodeling permits in Northlake go through the City of Northlake Building Department (708-343-8700), and every contractor and subcontractor listed on a permit must carry a current city contractor registration — an annual $100 license backed by a $10,000 bond and a certificate of insurance naming the City. On pre-1978 homes, which covers most of Northlake's postwar housing stock, the city requires proof of EPA Renovation, Repair and Painting (RRP) certification before it issues a remodeling permit. GS Construction manages the entire permit process for Northlake projects — registration paperwork, application submission, and inspection coordination included.
How your Northlake 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 Northlake Love Us
Real reviews from homeowners. Ask us for live phone references.
Greg and Patryk do amazing work and are incredible to work with! GS Construction completed two extensive bathroom renovations for us, including completely reconfiguring layouts and expanding one. Both bathrooms are absolutely beautiful, and they have significantly improved our family's quality of life in our home. Patryk and Greg are great communicators, take pride in their work, and have good attention to detail. Throughout the project, they really listened to us, took the time to understand what we wanted, kept progress going in a timely manner, and provided expert advice/suggestions and help on specific questions along the way. Every one of their team members did high-quality work. We couldn't be happier with the end result, and definitely will hire them for future renovations!
Before & After & Timelapse
What homeowners near Northlake say
“Greg and Patryk do amazing work and are incredible to work with! GS Construction completed two extensive bathroom renovations for us, including completely reconfiguring layouts and expanding one. Both bathrooms are absolutely beautiful, and...”
“We found G&S on Houzz.com and couldn’t be happier. They created a full basement bathroom and did drywall work to enclose a section of the basement to create a small 4th bedroom. Not only was the price reasonable but their communication and...”
“We had an excellent experience working with GS Construction on our primary bedroom and bathroom renovation. From the very beginning, they were incredibly thorough and transparent in outlining the scope of work, budget, and timeline. Everyth...”
Budgeting first? See real 2026 price ranges in our home additions cost guide — and what your Northlake permit will add in our permit guide.
Completed projects around Northlake
GS Construction crews have completed 22 projects within 10 miles of Northlake — 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 Northlake
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 Northlake. 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
Northlake and surrounding Chicagoland areas