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Sliding Glass Patio Doors
Installed in Maryland & Northern Virginia

Hallmark Windows & Siding has been Maryland’s trusted Vytex sliding glass door installer for over 25 years. We carry both the premium Signature Series and the reliable 7000 Series — installed by a certified crew with hundreds of Vytex patio door projects behind them.

Whether you are replacing an aging patio door or adding a new opening to your home, we will help you choose the right Vytex door for your style and budget — then install it correctly the first time.

Vytex Signature Series Sliding Glass Patio Door installed by Hallmark
25+Years Installing
Patio Doors in MD & VA
CertifiedAuthorized Vytex
Dealer & Installer
LifetimeWarranty Available
on Vytex Products
5-StarCustomer Rated
Across MD, DC & VA

Maryland’s Vytex Sliding Glass Door Specialists

When you choose Hallmark Windows & Siding for your sliding glass patio door project, you’re choosing a company with more than 25 years of hands-on Vytex installation experience right here in Maryland. We’re not a general contractor who dabbles in doors — patio doors are a core part of what we do, and we’ve installed them in thousands of homes across Montgomery County, Prince George’s County, Northern Virginia, and the surrounding region.

Vytex is a regional manufacturer built for the Mid-Atlantic climate — hot, humid summers and cold, wet winters. Their sliding patio doors feature multi-chambered vinyl frames, Low-E argon-filled glass, and robust stainless-steel locking systems engineered to hold up to decades of Maryland weather.

As an authorized Vytex dealer and installer, Hallmark gives you access to the full product line, professional installation backed by our own workmanship warranty, and local service when you need it. That’s a combination you won’t find at any big-box retailer.

Two Vytex Patio Door Lines — One for Every Home & Budget

Vytex Signature Series sliding patio door True Black interior view
Premium Choice

Vytex Signature Series

The Signature Series is Vytex’s top-of-the-line sliding patio door — engineered for homeowners who want the best in energy performance, security, and design flexibility. Built with extruded multi-chambered vinyl filled with VyFoam™ insulation for class-leading thermal performance.

  • Multi-chambered frame with VyFoam™ insulation
  • Stainless steel tandem rollers — whisper-quiet gliding
  • Head-to-sill stainless steel multi-point locking
  • Available as 2-lite or 3-lite slider
  • Beveled & welded sash corners for structural integrity
  • Triple-fin weatherstripping at every seal
  • 20+ exterior color options via VyCoat™
  • VyWood™ wood-grain interior laminates available
  • Optional Blinds+Glass (cord-free enclosed blinds)

    • Vytex 7000 Series sliding glass patio door exterior with patio furniture
    Reliable Value

    Vytex 7000 Series

    The 7000 Series delivers solid Vytex performance at an accessible price. Built with the same commitment to quality, it’s an excellent choice for budget-conscious homeowners who want a durable, energy-efficient vinyl patio door that will perform for decades.

  • Premium vinyl frame engineered for strength and longevity
  • Energy-efficient Low-E glass with argon gas fill
  • Secure multi-point locking system
  • Zinc-coated tandem steel rollers — smooth and quiet
  • Triple-fin weatherstripping for a tight, weatherproof seal
  • Built-in drainage for long-term protection
  • White, Matte Black, and Satin Nickel hardware options
  • Craftsman, Prairie, or Colonial grid patterns available

    • Why Maryland Homeowners Choose Hallmark

    🏆

    25+ Years of Expertise

    We have installed more Vytex patio doors than almost any contractor in the region. That depth of experience means faster installs, cleaner results, and zero learning curve on your job.

    ✅

    Authorized Vytex Dealer

    As a certified Vytex partner, we have direct access to the full product line, manufacturer pricing, and factory warranty support — protecting your investment long-term.

    🔧

    Expert Installation

    A great door poorly installed leaks, rattles, and fails early. Our crews are trained specifically on Vytex systems and backed by Hallmark’s own workmanship warranty.

    📍

    Local, Responsive Service

    We are a Maryland company, not a national chain. If you need us after installation, we are a phone call away — not a 1-800 number routed to a call center.

    Built for Maryland’s Climate — Inside & Out

    Energy Efficiency: Multi-chambered vinyl frames with advanced foam insulation, paired with Low-E argon-filled insulated glass. This keeps conditioned air in and outdoor temps out — reducing HVAC strain and lowering energy bills year-round.

    Security: Every Vytex sliding door includes a robust multi-point locking system. The Signature Series upgrades to a head-to-sill stainless steel multipoint lock — engaging the frame at multiple points for superior forced-entry resistance.

    Smooth Operation: Stainless steel or zinc-coated tandem rollers glide silently along precision tracks. Triple-fin weatherstripping seals every edge, eliminating drafts and keeping outdoor noise outside.

    Customization: VyCoat™ exterior color palette, VyWood™ wood-grain interior laminates, hardware finishes, grid patterns, and optional Blinds+Glass on the Signature Series.

    Vytex patio door cross-section showing insulation chambers and frame construction
    Vytex 7000 Series sliding glass patio door exterior view with landscaping

    Installation You Can Trust

    Installing a sliding glass door correctly requires precision. An improperly shimmed or leveled door will be hard to operate, will not seal properly, and can void the manufacturer warranty. Our installers are trained specifically on Vytex systems and know exactly how these doors go in.

    We start with a careful measurement of your opening, account for any out-of-square conditions, and ensure proper flashing and sealing. The result is a door that operates smoothly from day one and performs for decades.

    All installations include cleanup, haul-away of your old door, and a final walkthrough to ensure your complete satisfaction.

    Schedule a Free Estimate ›

    Sliding Glass Patio Door FAQ

    How much does a sliding glass patio door cost installed in Maryland?
    Installed costs vary by Vytex series, size, glass options, and structural work needed. The 7000 Series is the value option; the Signature Series is premium. We offer free in-home estimates with no hidden fees.
    What is the difference between the Signature Series and the 7000 Series?
    The Signature Series features VyFoam insulation, stainless steel tandem rollers, head-to-sill multi-point locking, beveled and welded sash corners, and 20+ exterior colors via VyCoat. The 7000 Series is the value tier with zinc-coated rollers and multi-point locking at an accessible price. Both carry Vytex product warranties.
    How long do vinyl sliding glass doors last?
    Properly installed vinyl sliding patio doors typically last 20-30 years or more. Vinyl does not rot, corrode, or need painting. Hardware is rated for tens of thousands of cycles. Vytex backs products with a lifetime limited warranty on frame and glass.
    Are Vytex sliding doors Energy Star certified?
    Yes. Vytex products meet ENERGY STAR criteria for the Northern Climate Zone covering Maryland. Low-E glass, argon fill, and multi-chambered frames keep your home comfortable year-round and reduce HVAC costs.
    Can I get a 3-panel sliding glass door?
    Yes. The Vytex Signature Series is available in 2-lite and 3-lite configurations. A 3-lite door offers a wider opening and more glass area. The 7000 Series is a 2-lite slider. Ask us which suits your wall opening.
    Do Vytex sliding doors come with built-in blinds?
    The Signature Series can include Blinds+Glass - enclosed blinds sealed between the glass panes. Dust-free, tangle-free, cord-free, and maintenance-free. Available in five colors. Popular for homes with children or pets.
    How long does installation take?
    Most sliding glass door replacements take 3-6 hours. Framing work may extend this. Our crew handles removal, installation, flashing, sealing, trim, and cleanup - typically in a single visit.
    Do you offer a warranty on installation?
    Yes. Beyond the Vytex manufacturer warranty, Hallmark backs every patio door installation with our workmanship warranty. If anything is not right, we fix it. That is the advantage of a local Maryland company in business for 25+ years.
    Which Maryland and Virginia areas do you serve?
    We install throughout Montgomery County, Prince Georges County, Frederick County, Howard County, Baltimore County, Anne Arundel County, Washington DC, Fairfax County VA, Arlington VA, Alexandria VA, and surrounding areas.

    Sliding Glass Door Installation Service Areas

    Hallmark installs Vytex sliding glass patio doors throughout Maryland, Washington DC, and Northern Virginia.

    Montgomery County, MD

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

    Prince George’s County & DC

    College Park · Bowie · Greenbelt · Hyattsville · Laurel · Lanham · Capitol Heights · Washington DC

    Northern Virginia

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

    Frederick County, MD

    Frederick · Gaithersburg · Clarksburg · Damascus · Ijamsville · Mount Airy · Walkersville

    Howard County, MD

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

    Baltimore County, MD

    Towson · Catonsville · Pikesville · Owings Mills · Timonium · Reisterstown · Dundalk · Essex

    Anne Arundel County, MD

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

    Ready for a New Sliding Glass Door?

    Schedule your free, no-obligation in-home estimate today. Our Vytex specialists will measure your opening, walk you through the options, and give you a clear price — no pressure, no surprises.

    Schedule Your Free Estimate ›

    Get A Free Online Quote Today And Get Started On Your Next Project.