Window & Door Replacement in Grayslake, IL
Grayslake features a rich mix of housing styles, from the historic homes clustered around Center Street to the newer developments that have expanded the village boundaries. Protecting these homes from harsh Lake County winters requires high-quality windows and doors installed with precision.
Kornesczuk Windows & Doors has been serving Grayslake and the surrounding Lake County area since 1957. We provide honest, straightforward assessments of your home's needs without the high-pressure sales tactics common in this industry. Whether you need custom wood-clad windows for a historic property or energy-efficient vinyl replacements for a suburban home, we deliver craftsmanship that lasts.
Recent Projects in Grayslake
Grayslake Full Frame Window Replacement
Full frame window replacement in Grayslake.


Grayslake Sliding Door Replacement
Modern sliding patio door installation.


Our Services in Grayslake
Window Replacement
We offer both insert and full-frame window replacement depending on the condition of your existing frames. We install premium vinyl, fiberglass, and wood-clad windows tailored to your home's aesthetic and your budget.
Entry & Patio Doors
We replace doors as complete systems — including the frame, threshold, weatherstripping, and hardware — ensuring proper fit, security, and long-term performance against Illinois weather.
Condo & HOA Projects
We have extensive experience working with Grayslake condominium complexes and homeowner associations. We handle single-unit replacements to multi-building phased projects while ensuring strict compliance with board requirements.
Our Process
Every project begins with an in-person assessment. We measure, evaluate existing conditions, discuss your options, and provide a clear, written proposal. If you choose to move forward, our own experienced crews will complete the installation to our rigorous standards.
FAQs — Grayslake Window & Door Services
Does Kornesczuk Windows & Doors serve Grayslake, IL?
Yes, we provide professional window and door replacement services throughout Grayslake and surrounding communities in Lake County.
Do you work with HOAs and condo associations in Grayslake?
Yes. We regularly coordinate with HOA boards, property managers, and condo associations in Grayslake for entry door replacements, common area window work, and multi-unit projects. We understand the specific requirements of local communities.
How quickly can you schedule an estimate in Grayslake?
We aim to schedule estimates within a few business days for Grayslake residents. Our assessment process is straightforward, thorough, and involves no high-pressure sales tactics.