Replacement windows · Northern Virginia
Replacement Window Installation
When a window can't be repaired, we replace it. We sell and install replacement windows from Simonton, West Window Corp and ProVia, sized to your openings and professionally installed by our technicians. We'll also tell you when a repair makes more sense than a new window.
- Simonton, West Window Corp and ProVia
- Professionally installed by our technicians
- Free, itemized estimate

Choose your style
Window styles

Single-hung and double-hung:
Casement and awning:
Sliders:
Picture windows:
Bay and bow windows:

Your installation
Replacement windows, professionally installed by our technicians
Our own technicians measure and install every window. The same people who repair windows and replace glass every day install your new ones, so the job is done by someone who knows how windows fail and how to set them so they don't.
New windows make sense when the frames are rotted or warped, the windows won't open, stay up or lock and can't be fixed, or you want a different style or color. New windows also bring tilt-in sashes for easy cleaning, fresh weatherstripping and new glass throughout.

How it works
How replacement window installation works
We measure.
Our technician measures every opening and checks each frame, sill and trim.Your windows are manufactured to the exact size.
Each window is built for its opening, with the style, color, grids and glass you've chosen.We install.
Our technicians remove the old windows, install and seal the new ones, and finish the trim.We clean up.
We clean the glass, check the operation of each opening window and haul away the old windows.
Replacement windows typically have an order lead time of 2–4 weeks after approval and ordering. We arrange the installation appointment separately once the windows are ready.
Explore your options
Repair before you replace
AS&G provides a wide range of repair services to help you get the most out of your existing windows. Often windows can be repaired before they need to be fully replaced, and we'll tell you when that's the case.
Window repair
Balances, tilt latches, locks, cranks and drafts.
Fogged window glass replacement
New glass for foggy windows, typically $1,000 less than a new window.
Wood window sash repair
Rot repaired in the existing sash and sill.
Glass doors
New sliding and French patio doors.
Repair vs. replacement guide
How to decide for each window.
Our work
Replacement window projects
Window brands
Replacement window brands we install
We sell and install replacement windows from three manufacturers. Every window is manufactured to the exact size of your opening and professionally installed by our technicians.
Simonton
Replacement windows
- We supply and install all Simonton window product lines.
- Our technicians measure your openings and confirm the style, glass and finish.
- We can also assess your existing Simonton windows for glass or hardware repair.
West Window Corp
Replacement windows
- We supply and install all West Window Corp window product lines.
- Compare the available window styles for your home and existing openings.
- Our technicians measure and install your selected windows.
ProVia
Replacement windows
- We supply and install all ProVia window product lines.
- We help you compare the window style and finish for each room.
- Our technicians measure and install your selected windows.
Not sure which window fits your house? We'll help you compare the options for your home and budget.
Simonton, West Window Corp and ProVia are trademarks of their respective owners.

Your options
Insert replacement windows
We primarily install insert replacement windows. The new window fits within an existing frame that is suitable to remain. We inspect the frame, sill and opening before confirming the installation scope and finishing details in your estimate.
Your options
Sound-reduction options
For windows facing traffic, flight paths or other urban noise, we assess acoustic glass in a compatible existing window. Where the original window cannot be changed or accept that glass, an interior secondary sound-reduction window can be another option if there is room for it. This can be useful in condos with restrictions on exterior windows. The existing assembly and available space determine the approach; we do not promise a specific sound reduction or approval from a condo association.
Common questions
Frequently asked questions
Do you primarily install insert windows?
Yes. We primarily install insert replacement windows in existing frames that are suitable to remain. We inspect each opening and confirm the work and finishing details in the estimate.
How long do replacement windows take to arrive?
The typical order lead time is 2–4 weeks after approval and ordering. Installation is scheduled separately once the windows are ready.
Can you help reduce noise through existing windows?
For windows facing traffic, flight paths or other urban noise, we assess acoustic glass in a compatible existing window. Where the original window cannot be changed or accept that glass, an interior secondary sound-reduction window can be another option if there is room for it. This can be useful in condos with restrictions on exterior windows. The existing assembly and available space determine the approach; we do not promise a specific sound reduction or approval from a condo association.
Which replacement window brands do you install?
We supply and install all window product lines from Simonton, West Window Corp and ProVia. Our technicians measure the openings and install the windows. Available styles, glass and finishes are confirmed for the selected product.
Are ProVia windows good?
We supply and install ProVia windows and help you compare the available lines, styles and finishes for your home. The right choice follows your opening, preferences and budget.
Where are West Window windows made?
In Martinsville, Virginia. West Window Corp is based there and supplies window products for homes in the region.
Do you replace the glass instead of the whole window?
Yes, when the frame is sound. Replacing fogged glass is typically $1,000 less than a new window. See fogged window glass replacement.
Explore your options
Related services
Replacement windows from American Screen & Glass
American Screen & Glass has served homeowners throughout Northern Virginia since 1993. We serve all of Northern Virginia, including Fairfax County, Loudoun County, Arlington County, Alexandria and parts of Prince William County.
No pressure. Call 703-471-4500 or request a free, itemized estimate.
