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Bay & Bow Windows in Maryland, DC & Northern Virginia

A bay or bow window pushes out past the wall and opens up the room behind it — more daylight, a wider view, and a window seat you did not have before.

Hallmark builds and installs Vytex bay and bow windows across Maryland, DC, and Northern Virginia, from the structural support behind the wall to the finished interior trim. Every job is backed by a lifetime warranty and our own workmanship guarantee.

25+Years Installing
Windows in MD & VA
CertifiedAuthorized Vytex
Dealer & Installer
LifetimeWarranty Available
on Vytex Windows
5-Star& A+ Rated by
Local Homeowners

Maryland’s Vytex Bay & Bow Window Specialists

A bay or bow window does something a flat window can’t: it projects out from the wall and brings the outside closer. The room gets more light from three or more angles, a wider view, and a built-in ledge deep enough for a seat, plants, or a reading nook.

Bay windows are typically three sections — a wide center window flanked by two angled sides — for a strong, projecting look. Bow windows use four or more equal sections in a gentle curve, for a softer, rounded profile. We help you choose the shape that fits the room and the exterior.

A bay or bow is more involved than a standard replacement because it carries its own weight and needs a roof and proper flashing. We have installed these across Montgomery, Howard, Anne Arundel, and Prince George’s counties and Northern Virginia for more than 25 years, and we handle every part of the job.

Bay and bow windows are part of our full replacement window lineup, available in energy-efficient Vytex models.

How Vytex Builds Bay & Bow Windows

Dual mullion support with threaded steel rods. Steel rods tie the unit together and carry its weight, so the window stays square and true for the long haul instead of sagging at the corners.

Insulated seat board keeps the base warm and dry. Add the optional half-inch solid-surface inlay — waterproof, in five finishes — when you want a seat you can actually use.

Weeped sill-pan system channels any water out and away from the wall, and a prefabricated roof in plywood, painted aluminum, or copper means less cut-and-fit on site and fewer leak points.

Real wood interior trim in Red Oak or Birch with stain options, plus 17-plus VyCoat exterior colors and optional LED lighting in 2- or 3-light sets.

How Vytex Builds Bay & Bow Windows

What You Get With a Vytex Bay or Bow Window

  • More room and light — the unit projects outward, adding a ledge or seat and pulling in daylight from several angles.
  • Steel-reinforced support — threaded steel rods and a dual mullion system keep the window square for decades.
  • A seat you can use — insulated seat board with an optional waterproof solid-surface inlay in five finishes.
  • Weather protection — weeped sill-pan drainage and a prefabricated roof in plywood, aluminum, or copper.
  • Finished to match your home — real wood interior trim, 17-plus exterior colors, grid patterns, and optional LED lighting.
  • Energy-efficient glass — Low-E, argon-filled insulated units that hold conditioned air in through Maryland’s summers and winters.

    • Why Maryland Homeowners Choose Hallmark

    🏆

    25+ Years, Local

    We have installed windows across the DC metro for more than 25 years. That experience means faster installs, cleaner results, and no learning curve on your job.

    ✅

    Authorized Vytex Dealer

    As a certified Vytex partner we have direct access to the full line, manufacturer pricing, and factory warranty support.

    🔧

    Our Own Crews

    A great window installed poorly leaks and fails early. Our trained crews install every unit and back it with Hallmark’s workmanship warranty.

    📍

    Local Service

    We’re a Maryland company, not a national chain. Need us after the install? You reach us directly, not a call center.

    Bay & Bow Window FAQ

    What is the difference between a bay window and a bow window?
    A bay window is usually three sections — a large center window with two angled side windows — for a bold look that projects out from the wall. A bow window uses four or more equal sections set in a gentle curve, for a softer, rounded profile. Both add floor space, light, and a focal point to the room.
    Do bay and bow windows add usable space?
    Yes. Because they project past the exterior wall, they create a shelf or window seat inside and make the room feel larger. Vytex offers an insulated seat board, with an optional half-inch solid-surface inlay you can sit on, in five finishes.
    Are bay and bow windows structurally sound?
    Vytex units use a dual mullion support system with threaded steel rods that carry the weight and keep the unit square over time. They ship with a prefabricated roof, so the window supports itself. Correct installation — header, anchoring, and flashing — is what makes it last, and that is what our crews handle.
    Will a bay or bow window leak?
    Not when it is installed correctly. Vytex uses a weeped sill-pan system that channels water out, plus a prefabricated roof in plywood, painted aluminum, or copper. We flash and seal the opening properly so water stays outside.
    What colors and finishes are available?
    17-plus exterior colors through the VyCoat finish, including True Black, Wedgwood Blue, and Forest Green. Interiors come in painted White or Beige, or real wood trim in Red Oak and Birch with several stain options.
    How much do bay and bow windows cost installed?
    They cost more than a standard flat replacement window because of the structural support, seat board, and roof. We give you a clear installed price at a free in-home estimate, with no hidden fees.

    Bay & Bow Window Installation Service Areas

    Hallmark installs Vytex bay and bow windows throughout Maryland, Washington DC, and Northern Virginia.

    Montgomery County, MD

    Rockville · Bethesda · Silver Spring · Gaithersburg · Germantown · Potomac · Chevy Chase · Kensington · Olney

    Prince George’s County & DC

    College Park · Bowie · Greenbelt · Hyattsville · Laurel · Lanham · Upper Marlboro · Washington DC

    Northern Virginia

    Fairfax · Arlington · Alexandria · McLean · Vienna · Reston · Herndon · Annandale · Springfield

    Frederick County, MD

    Frederick · Brunswick · Middletown · Mount Airy · Walkersville · New Market · Urbana

    Howard County, MD

    Columbia · Ellicott City · Clarksville · Elkridge · Jessup · Savage · Fulton

    Anne Arundel County, MD

    Annapolis · Glen Burnie · Severna Park · Pasadena · Odenton · Crofton · Millersville · Arnold

    Ready to Open Up a Room?

    Schedule a free, no-obligation in-home estimate. We measure the opening, talk through bay vs. bow, seat board, roof, and trim, and give you a clear price — no pressure.

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