
Double hung
Both sashes move, and they tilt in so you can clean the outside glass from inside.
- ProVia window systems
- Expanding foam and sealants, integrated into the wall
- Screens and tilts you will actually use
ProVia replacement windows. Double-hung, casement, bay, bow, sliders, and awning, measured at the house. This page covers Glengary, plus Falling Waters and Hedgesville: 3 ZIP codes in Berkeley County.

The style is chosen for how the opening should move. We confirm it at the in-home measure.

Both sashes move, and they tilt in so you can clean the outside glass from inside.

Cranks open up to 90 degrees for ventilation, then closes tight against the frame.

Bay, bow, and special-shaped combinations. Framing holds the projection. Flashing keeps it dry.

Horizontal sliders, awning, and single hung when the wall wants a different motion.
You can feel air moving near the frame, or the room by the window never warms up.
Condensation trapped inside the glass means the seal between the panes has failed.
Windows that stick, will not stay up, or will not lock.
Heating and cooling working harder every season often points to the openings.

ExteriorMax installs roofing, siding, windows, gutters, doors, and decks in Glengary, West Virginia under WV 066154. Maryland, Virginia, West Virginia, and Pennsylvania are authorized service areas. The business address is 6301 Ivy Ln, Suite 120, Greenbelt, MD 20770.
The ZIP codes below are the zone list that names Glengary, along with Falling Waters and Hedgesville. They are not a city-limit map of Glengary alone.
Photos on this page are examples of ExteriorMax work and the products we install. They are not a job at a specific address.
Falling Waters, Hedgesville, Glengary. Berkeley County. Zone WV-BERK-NORTH. ZIP codes: 25419, 25421, 25427.
From 2025-11-11 through 2026-11-11, National Weather Service severe reports for Berkeley County include this headline: 1.50" hail recorded in Berkeley County. That is a county record. It does not mean every home in these ZIP codes experienced that weather. A county hail report is not a window inspection. Fog, drafts, and sashes that stick are what we look at on the opening.
$0 down financing for qualified homeowners. Plans are walked at the inspection. A small deposit holds the schedule. Financing details.
These are company-wide reviews. They are not filed as Glengary reviews, and we do not invent a local set.
One word: AWESOME. Roof replacement and all the windows. Chidi and Adam were professional. The installers were thorough.
Yes. This page covers Glengary, plus Falling Waters and Hedgesville: 3 ZIP codes in Berkeley County under WV 066154.
Double hung, Casement, Bay and bow, Sliders and awning. The style is chosen for how the opening should move. We confirm it at the in-home measure.
Measured in person, Old unit out, opening checked, Foamed, flashed, and sealed, Trim and walkthrough.
Permit rules differ by county. ExteriorMax handles the permit and HOA packet for the job. We do not publish a separate permit fee for Glengary.
$0 down financing for qualified homeowners. Plans are walked at the inspection. A small deposit holds the schedule.
Also in Glengary: Roofing in Glengary · Siding in Glengary · Gutters in Glengary · Doors in Glengary · Decks in Glengary.
Company-wide windows page · Signs a window needs replacement · Glengary overview
Falling Waters windows · Hedgesville windows · Bunker Hill windows · Gerrardstown windows · Inwood windows · Martinsburg windows · Ridgeway windows
Glengary, plus Falling Waters and Hedgesville. ExteriorMax installs roofing, siding, windows, gutters, doors, and decks in Glengary, West Virginia under WV 066154. Maryland, Virginia, West Virginia, and Pennsylvania are authorized service areas. The business address is 6301 Ivy Ln, Suite 120, Greenbelt, MD 20770.