Replacement Windows Service

Affordable Replacement Windows

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We install and replace all window and door types including:

  • Sun-rooms
  • Sliding Windows
  • Bay Windows
  • Bow Windows
  • Double Hung Windows
  • Casement Windows
  • Awnings
  • Sliding Doors
  • Sliding Patio Doors
  • Steel Entry Doors

Quality and Dependability on Every Replacement Window

For over 20 years we provide every client with the following:

  • Joe or Gabriel Kelemer (owners) prepare every estimate (we don’t use commission salespeople)
  • Joe or Gabriel Kelemer create every design and supervise every project
  • Professional windows replacement
  • A Lifetime Worry Free Window Warranty on Installation
  • A Lifetime Glass Breakage Warranty
  • 110% Price Assurance Guaranty
  • Financing Options including accepting Credit Cards


We understand that most homeowners have questions about the process of installing new replacement windows in their home. We developed a detailed installation procedure for a typical home based on successfully installing over 50,000 windows since 1999.

Call us today (410) 299-0038 to receive a comprehensive plan for your home’s replacement windows.

Our process will ensure that your new windows will be installed on time and dramatically improve the energy efficiency and curb appeal of your home. We have extensive experience ranging from storm and security window installation to complex window repair.

As a family company, we know you value your home and so do we: our crews will act like invited guests. We remove all garbage and debris at the end of each day. Lots of contractors will tell you “we clean up every day” – we have a written daily clean-up checklist that our crews follow.

Take advantage of our experience – by calling us at (410) 299-0038 you’ll speak personally with Joe or Gabriel to get the right advice for your unique situation, NOT a two-hour sales pitch.

Kelemer Brothers Service Area

Since 1999 We have been providing quality service on all major and minor window projects in the Washington D.C., Maryland and Virginia region including: Baltimore City, Baltimore County, Harford County, Howard County, Montgomery County, Bel Air, Columbia, Silver Spring, Rockville, Germantown, Gaithersburg, Prince George’s County, Potomac MD, Washington D.C, North Virginia, McLean and Falls Church, VA.

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