Window Services
Vinyl Window Replacement in Des Plaines & Chicagoland
Replace drafty, worn-out, or hard-to-open windows with new vinyl windows. Choose double-hung, casement, picture, or slider styles, with Low-E glass and argon gas options. Estimates are free.
Free estimates. Project suitability is confirmed during your estimate.

Why homeowners choose vinyl windows
Vinyl is a low-maintenance window material, and it is a common choice when replacing older windows.
- Frames that do not need scraping or repainting
- Vinyl does not rot, so moisture is less of a concern than with wood
- Frames and sashes that wipe clean
- Four common styles to suit different rooms and openings
- Low-E glass and argon gas options for better insulating glass
When replacement makes sense
We repair windows too, so we will tell you honestly when replacing is the better move.
- The frame and sill are badly rotted or worn out
- Windows are drafty, hard to open, or no longer lock, and repair is not practical
- Several windows have failed glass and worn-out parts at the same time
- You want Low-E or argon glass that your current windows do not have
Window styles
Double-hung, casement, picture, and slider windows
Many homes mix styles, for example a picture window with a casement or double-hung window on each side. We help you match the style to each opening.
Double-hung windows
Two sashes slide up and down. It is the classic look for most traditional homes, and a common replacement for older wood double-hung windows. You can open the top, the bottom, or both for airflow.
Good for: living rooms, bedrooms, and any opening that has a double-hung window today.
Casement windows
Hinged on the side and opened with a crank, so the whole sash swings out for plenty of fresh air. A casement presses against the frame when it is closed and latched.
Good for: kitchens above a counter or sink, hard-to-reach openings, and rooms where you want the most ventilation.
Picture windows
A fixed window that does not open. It gives you the biggest uninterrupted view and the most daylight, with no moving parts. Picture windows are often paired with windows that open on either side.
Good for: living rooms, stairwells, and walls where view and light matter most.
Slider windows
The sash slides sideways along a track. Sliders suit wide, short openings and are simple to operate.
Good for: wide openings, basements, and kitchens.
Not every style fits every opening. We confirm what works for your windows at your estimate.
Glass options
Low-E glass and argon gas options
The glass is a big part of how a window performs. Most replacement windows use a sealed glass unit: two panes with a gap between them. Two options change how that unit performs, a Low-E coating and argon gas in the gap.
Low-E glass
Low-E stands for low emissivity. A very thin, nearly invisible coating on the glass reduces how much heat passes through as radiant heat. In winter it helps keep heat in the house, and in summer it helps keep heat out.
Low-E coatings are not all the same. Different coatings let in different amounts of the sun’s heat, so the best choice depends on your home and which way the window faces.
Argon gas fill
Argon is a colorless, odorless, non-toxic gas. It replaces air in the sealed gap between the panes of glass. It conducts heat less readily than air, so less heat moves through the window.
Argon is the most common gas fill, and it is most often paired with a Low-E coating.
How the glass options compare
| Glass option | What it is | What it does | Good to know |
|---|---|---|---|
| Clear glass, air-filled (for comparison) | Two panes with a sealed, air-filled gap | The baseline. It slows heat flow less than the options below. | A starting point that the other two options build on. |
| Low-E glass | Two panes with a thin Low-E coating on the glass | Reduces radiant heat flow, in winter and in summer. | Coatings differ in how much solar heat they let in, so the choice depends on the home. |
| Low-E glass with argon | A Low-E coating plus argon gas in the sealed gap | Slows heat flow through the glass unit more than Low-E with air. | The most common pairing. Ask to see the NFRC numbers for the exact unit. |
Low-E and argon are glass options, not a promise of a specific energy bill. Results depend on the whole window, how it is installed, and your home.
Comparing windows
How to compare windows fairly
Energy-rated windows carry an NFRC label with standard numbers. They let you compare one window and glass option against another.
- U-factor: how much heat passes through the window. Lower is better.
- Solar Heat Gain Coefficient (SHGC): how much of the sun’s heat comes through. A higher number lets in more free heat in winter, and a lower number cuts summer heat. The right balance depends on which way the window faces and how much shade it gets.
- Visible Transmittance (VT): how much daylight comes through. Higher means more light.
- Air leakage, when listed: how much air moves around the window. Lower means a tighter window.
Next step
Ask for the numbers
Ask to see the NFRC label values for the exact window and glass option you are considering, so you compare like with like.
It is also worth asking whether a product is ENERGY STAR certified for our climate zone.
We go over the options with you at your estimate and help you match the glass to each window.
How it works
How vinyl window replacement works
1
Request an estimate
Call or send a short request. Photos of your windows help.
2
We look at your windows
We check the openings, frames, sills, and trim, and tell you whether replacement or repair fits.
3
Choose style and glass
Pick double-hung, casement, picture, or slider, and decide on Low-E and argon options.
4
Installation
We install the new windows. If the sill, trim, or weatherproofing around them needs work, we can handle that too.
Repair or replace?
Replacement is not always the answer
If a window has a sound frame and only one part has failed, such as a broken balance, a cracked pane, or fogged glass, repair or glass replacement may be all it needs.
- Window repair for sashes, balances, locks, and frames
- Fogged window glass replaced without replacing the whole window
- Sill, frame, and trim repair for rotted woodwork
When frames and sills are badly rotted, or the window is worn out, a new window is usually the better choice. We look at the windows and explain the options. Project suitability is confirmed during your estimate.


Related services
You may also need
Window repair
Wood window repair and common fixes for sashes, glass, frames, and hardware.
Glass replacement
Cracked, broken, or fogged window glass, including insulated glass units.
Weatherproofing and caulking
Drafts and leaks around windows.
Customer review
5.0
“Pro Window works is an excellent company to work with. They replaced my front picture window that had a fogging issue. Igor was very professional from the initial quote process to finishing the job.”
FAQs
Frequently asked questions
Which window styles can you replace with vinyl?
Double-hung, casement, picture, and slider windows. We confirm what fits each opening at your estimate.
What does Low-E glass do?
A very thin coating on the glass reduces radiant heat flow. It helps keep heat inside in winter and outside in summer. Different coatings let in different amounts of the sun’s heat, so we talk through the choice for your home.
Do I need argon gas in my windows?
Argon is a common option that slows heat flow through the sealed glass unit more than air does. The Low-E coating does much of the work, and argon adds to it. We go over whether it fits your project at the estimate.
Will new windows lower my energy bills?
Better windows can reduce heat loss, but we do not promise a specific saving. Results depend on the whole window, how it is installed, and your home.
Can I replace just the glass instead of the whole window?
Sometimes. If the frame and sash are in good shape and only the glass unit has failed, for example with fogged glass, replacing the glass may be enough. See fogged window glass. We confirm this at your estimate.
Can I mix window styles in one home?
Yes. Many homes combine styles, such as a picture window between casement or double-hung windows. We help you choose by room.
Which areas do you serve?
We are based in Des Plaines, Illinois, and serve properties within about 30 to 35 miles. See our service areas.
Are estimates free?
Yes. We provide free estimates. Call (872) 333-0473 or use the request form on this page.
Request an Estimate
Tell us about your project
A few quick details are enough. Prefer to call or email? Reach us at (872) 333-0473 or prowindowworks@gmail.com.
Photos help us understand the project. Add them in the form, or email them to prowindowworks@gmail.com.
Free estimates. Project suitability is confirmed during your estimate.
