HomeAluminum AwningsBlindsCanvas AwningsCarpetEntry DoorsInsulated GlassPatio DoorsPatio EnclosuresReplacement WindowsRetractable AwningsStorm DoorsStorm WindowsOther ProductsOur HistoryProject PortfolioSpecials/CouponsStore LocationContact Us



Great Lakes Seabrooke Windows are a premium window that offers the highest quality in construction, durability, and energy efficiency.  These windows are available in multiple color combinations that will add beauty to your home.  They also offer a variety of grid patterns and glass options to enhance the performance of your windows.  For all Great Lakes products, they offer a Limited Lifetime Warranty that covers all manufacturing defects for as long as you own the home.  The warranty is also transferrable to the next homeowner if you decide to move. 

Double Hungs / Sliders / Casements / Picture Windows / Bay Windows / Bow Windows / Garden Windows

Standard Features

  • Full New Generation Vinyl Construction
  • Fusion Welded Frames
  • Two High Security Locks (on windows over 25"wide)
  • Tilt Sashes on Double Hungs
  • Interlocking Frames
  • High Quality Weatherstripping
  • Warm Edge Intercept Glazing Insulated Glass
  • Vent Latches
  • Standard FiberglassScreen (upgrades available)
  • Limited Lifetime Warranty (transferrable to next homeowner)

Photo Gallery

GreatLakesWindow/022.JPG GreatLakesWindow/029.JPG GreatLakesWindow/GLSlider.jpg GreatLakesWindow/GLDH.jpg
GreatLakesWindow/GLCasement.jpg GreatLakesWindow/GLDecorativeGlass.jpg GreatLakesWindow/GL3slider.jpg GreatLakesWindow/GLBow.jpg
GreatLakesWindow/GLBay.jpg GreatLakesWindow/GLGarden.jpg

Optional Features

  • Hi-R plus Low-E Glass, Maxuus Glass System Dual Low-E, or Maxuus 7.6 Glass System Triple Glaze / Dual Low-E
  • Woodgrain Interior and Grids
  • Multiple Grid Patterns Available
  • R-Core Insulation
  • Hardware Options for Casements and Patio Doors
  • Designer Glass Available
  • Two Tone Color Options
  • Etched Glass Options
  • Full Screen and Pet Screening Available
  • Plus many more!!!
  • Here’s some of the advanced window technology you can expect from Seabrooke windows:

    The performance of Seabrooke™ windows has been recognized by the following independent industry organizations:


    Return to Replacement Windows Main Page

    Back to Products Page

    Choose from our Classic, Original or Contemporary handcrafted designs. Each of the hand-cut, clear or stained glass leaded inlays is mounted between two continuous sheets of annealed or safety tempered insulating glass.

    And you don't have to trade all this custom elegance for thermal perfomance. Each of our decorative glass styles combines aesthetic detailing with full insulating glass energy efficiency.  Call or stop by for the current available glass styles. 

    Color Selection


    • Vinyl vs. wood or aluminum
      Vinyl is a better insulator than wood or aluminum. It doesn’t conduct heat or cold like aluminum – a major source of lost heating/cooling energy. And, it doesn’t swell and shrink like wood when temperatures change. It never needs painting and won’t show scratches, unlike aluminum or wood windows.

      > Today, over 75% of replacement windows are vinyl*. But just because a window is made of vinyl doesn’t mean it is a superior product. The design, engineering and manufacturing of the window all help distinguish a poor window from a superior window.
      > *Sabre Report 2004.
    • R-value
      The thing to remember when considering an R-value is that the higher the R-value number is, the greater the insulation value. As with any measure of energy efficiency, it’s not so much what’s considered acceptable, as what is acceptable to you. Insulation in the sash and/or mainframe of a vinyl window can significantly up the R-value of a window frame. Check for the availability of this feature when assessing a window’s energy efficiency.

      Glass is rated in R-values also – the same used to rate window frames. The type of glass, thickness, number of panes, distance between the panes, as well as, the manner in which panes are connected, all affect the R-value performance of the window.
    • U-factor
      This is a standard measure of heat transfer through an entire window unit. The methods for measuring U-factor ratings were developed by the National Fenestration Rating Council (NFRC) at the request of the U.S. Department of Energy and the Federal Trade Commission.

      The lower the U-factor the better the window’s insulating ability. A window’s U-factor is the reciprocal of its R-factor. They both measure its insulating ability. Look for windows with low U-factors and high R-values.
    • Low-E glass
      There are two major types of Low-E (the ‘E’ stands for emissivity) glass: hard-coat (pyrolitic) and vacuum-deposition (sputter). Both types block radiant heat, keeping summer’s heat outside and winter’s heat inside. And both block the sun’s rays to some degree.

      But windows made with multi-layer, vacuum deposition (sputter coat) Low-E glass have much better visual clarity. With this type of glass you have very little haze factor which provides almost the same clarity as clear ‘uncoated’ glass.
    • Argon or Krypton gas
      Air between the panes of insulating gas can be replaced with high-density Argon or Krypton gas. This process provides windows with a both increased energy efficiency and increasing sound deadening properties. Both Argon and Krypton are safe, odorless, colorless gases that occur naturally in our atmosphere. But, because of their density, heat and cold do not pass through these gases as easily as through air. When Argon or Krypton gas is used in an insulated glass system with a vacuum deposition (sputter) coat Low E glass, it creates one of the most energy efficient windows you can buy.
    • Noise reduction
      Some of the same features that make a window more energy efficient can also help to significantly cut down on noise transmission from outdoors.
    • Wood grain finishes
      Today’s better interior wood grain finishes are designed for a lifetime of maintenance-free beauty. They’ve proven themselves over time to resist fading, chipping, peeling and blistering.
    • Designer or decorative glass
      Glass styles play an important role in the appearance and curb appeal of a home. Styles and selections will vary with each manufacturer, but the more styles that are available to choose from, the better the protection and enhancement of the value of a home, whatever its architectural style.

    Patio Doors Also Available

    click image to view selection