WINDOWS

WINDOWS2026-03-17T21:54:19+00:00

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GREAT AMERICAN EXTERIORS’ TRUSTED WINDOW BRAND

Great American Exteriors Replacement Windows
GRAMEX- Havington High Quality Windows
  • Extremely efficient Comfort Zone glass system
  • Non metal glass spacer = Less conduction
  • Provides year round comfort and energy savings
  • Structurally reinforced frames stay straight
  • Reduces solar heat gain from sun
  • Blocks unwanted ultraviolet radiation and reflects away the long-wave infrared radiation that can heat up your home
  • During winter lets warm solar rays into your home
  • Comfort Zone Glass is treated with titanium dioxide which causes organic matter on the glass surface to breakdown and decompose. When it rains the organic matter is washed away across a layer of silicon dioxide – 99% less spots on glass

Quality Engineered Windows

Great American Exteriors Comfort ZoneGlass Spacer
Great American Exteriors Comfort Zone Glass System

Built for Performance and Durability

Our replacement windows are engineered for long-term performance. Reinforced frames maintain their shape over time, while high-quality vinyl materials resist peeling, cracking, and warping.

Moreover, our windows include advanced spacer systems that reduce heat transfer and improve insulation. Because of this thoughtful engineering, your windows deliver dependable performance even in the harsh Chicago climate.

Cooler in the Summer, Warmer in the Winter, Brighter & Safer for your Family!

GRAMEX-Comfort ZoneGlass System- Keeps Heat In

Cooler in Summer
Reflects the sun’s heat, keeping rooms cooler.

GRAMEX-Comfort ZoneGlass System- Keeps Cold Out

Warmer in Winter
Minimizes heat loss reflecting heat back in keeping rooms warmer .

GRAMEX-Comfort ZoneGlass System- Protects from UV

Protect Your Family & Furnishings
Blocks 95% to 99% of harmful UV rays.

Comfort and Efficiency for Every Season

Chicago’s climate can be demanding, which is why quality windows matter. Our advanced Comfort Zone glass system helps keep your home cooler in the summer and warmer in the winter. As a result, you enjoy more consistent indoor temperatures while potentially lowering your energy costs.

Additionally, these windows block harmful ultraviolet rays while allowing natural light to brighten your home. This protection helps preserve your furniture, flooring, and interior finishes.

Many Window Styles to Choose From

Every home has its own character, and your windows should complement that style.
Therefore, we offer a wide variety of window styles, including:

GRAMEX-Casement-Window

Casement

GRAMEX-Double Hung-Window

Double Hung

GRAMEX-Slider

Slider

GRAMEX-Awning-Window

Awning

GRAMEX-Bow-Window

Bow

GRAMEX-Bay-Window

Bay

GRAMEX-BoxBay-Window

Box Bay

GRAMEX-Patio Door

Patio Door

GRAMEX-HalfCircle

Half Circle

GRAMEX-Round

Round

GRAMEX-Octagon

Octagon

GRAMEX-Gothic

Gothic

GRID STYLES

Prairie

Colonial

Diamond

Simulated Divided Lite

Blinds Between the Panes

OBSCURE GLASS

Obscure glass is commonly used in bathrooms to distort the image behind the glass.

Normal View

Standard Obsure

Rain

COLORS

INTERIOR COLORS

Gramex Window Colors

EXTERIOR COLORS

GRAMEX Windows Frame Colors

FAQ’s

What are the signs that I need to replace my windows?2026-03-16T18:54:28+00:00

Common signs include drafts, difficulty opening or closing the window, condensation between the glass panes, and noticeably higher heating or cooling bills. If your windows are over 15-20 years old, it is usually a good time to consider an upgrade. See our window options here.

How do energy-efficient windows actually save me money?2026-03-16T18:57:47+00:00

Our energy-efficient windows use advanced features like low-E glass coatings, argon gas fills, and premium weatherstripping. These elements minimize heat transfer, keeping your home warmer in the winter and cooler in the summer, which significantly reduces the workload on your HVAC system. See our window options.

How long does a typical window installation take?2026-03-16T18:49:02+00:00

While timelines vary based on the size of the project, a standard home window replacement typically takes 1 to 2 days once the custom-manufactured windows arrive. We prioritize minimizing disruption to your daily routine. Check out our window options here.

How much do replacement windows cost?2026-03-17T23:18:30+00:00

Replacement window costs vary based on size, style, materials, and installation conditions. Most homeowners can expect to invest $1,000 to $2,000+ per window installed. We provide detailed, no-obligation estimates to help you find the best fit for your home and budget.

Are you insured?2026-03-19T17:37:24+00:00

Yes, Great American Exteriors is fully insured for your peace of mind and protection. We carry comprehensive general liability insurance (Country Mutual Insurance Policy # AB9112233).

What are the signs that my windows need to be replaced?2026-03-19T17:38:17+00:00

Common signs that it is time for a window replacement include feeling drafts near the window, seeing condensation or fog trapped between the glass panes, difficulty opening or closing the sashes, noticeable decay or water damage around the frames, and unexpected spikes in your monthly heating and cooling bills.

How do energy-efficient windows save me money?2026-03-19T17:38:51+00:00

Energy-efficient windows feature advanced technologies like Low-E glass coatings, argon gas fills between the panes, and insulated frames. These elements work together to block heat from escaping your home during the harsh Illinois winters and prevent UV rays from heating up your home in the summer, drastically reducing the workload on your HVAC system and lowering your utility bills.

How long does window installation typically take?2026-03-19T17:39:34+00:00

For most standard residential projects, our professional crews can complete a full-home window replacement in just 1 to 2 days. We focus on working efficiently and cleanly, replacing one window at a time to ensure your home is never left exposed to the elements overnight.

WARRANTY

NO-NONSENSE LIFETIME PARTS & LABOR WARRANTY

  • 100% non-prorated lifetime coverage
  • Transferable to the new home owners
  • No charge for service, parts, or labor
  • No deductibles No “Complaint” or “Coverage”
    fees (aka “house call charge”)
  • Automatic warranty, no paperwork to fill out
  • No parts to be shipped at homeowners expense
  • Free glass replacement up to 3 times per window
  • A.A.M.A. certified 100% virgin UPVC vinyl that is guaranteed not to flake, peel, rot, crack, or blister
  • No condensation, moisture, dust, or film in between panes of glass
  • All balances, locks, handles, and hardware are warranted for the life of the home
  • Unlimited re-screening, provided screen is brought into nearest location
  • Caulking is warranted on all windows 5 years from date of installation
  • Over 60 years of combined installation experience
  • 100% non-prorated lifetime coverage
  • Transferable to the new home owners
  • No charge for service, parts, or labor
  • No deductibles No “Complaint” or “Coverage”
    fees (aka “house call charge”)
  • Automatic warranty, no paperwork to fill out
  • No parts to be shipped at homeowners expense
  • Free glass replacement up to 3 times per window
  • A.A.M.A. certified 100% virgin UPVC vinyl that is guaranteed not to flake, peel, rot, crack, or blister
  • No condensation, moisture, dust, or film in between panes of glass
  • All balances, locks, handles, and hardware are warranted for the life of the home
  • Unlimited re-screening, provided screen is brought into nearest location
  • Caulking is warranted on all windows 5 years from date of installation
  • Over 60 years of combined installation experience

GREAT AMERICAN EXTERIORS SERVICES

WINDOWS

INSULATED
SIDING

DOORS

PORTICOS

PERGOLAS

DECKS

CONCRETE

PAVERS

SOFFITS/FASCIA/
GUTTERS

Great American Exteriors Designs Add Value to Your Home

Trust our Exterior Design Consultants to Add Value to Your Home.

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