Doors ▶ Windows ▶ Garage Doors
1851 Lincoln Hwy East • Lancaster, PA 17602
Mon-Fri: 7AM-4PM

Lancaster Door Service and Lancaster Building Supply are your professional sellers and installers of quality replacement windows by Provia®.

Whether you are building a new home or office - or updating an older structure - there are few decisions more important than choosing the right windows.

Every window that we install is designed for performance, beauty, and dependability. We offer a complete line of replacement and new construction windows with a full range of styles.

We also sell and install wood and aluminum clad windows with exceptional warranties that are suitable for Historical Preservation areas.

Combining quality products and friendly customer service has helped to make us an industry leader in offering Vinyl Replacement Windows, beautiful Bay Windows, Bow Windows, Garden Windows and Specialty Windows for your home or office.

An exterior window redesign helps to increase the curb appeal as well as the energy efficiency of your property - resulting in a valuable return on your investment. Contact Us when you are ready and we will schedule time to meet with you at your location to become familiar with the nature of your specific project. We will take accurate measurements and discuss the various options available that best compliment your building, while staying within your budget. Our goal is to make your window replacement experience a pleasant and enjoyable one!


Quality Vinyl Replacement Window Systems not only add beauty and simplify overall maintenance – they are a key component to energy conservation and lower utility bills.

ProVia® Windows offer energy-efficient, custom home replacement windows come in a number of popular window styles, including double hung, casement, awning, slider, bay, bow, picture and garden windows.

ProVia® Windows

replacement windows

Double Hung WindowsOur Double Hung windows are beautiful, functional and energy efficient. Upper and lower sashes both open and tilt in for easy cleaning.

Casement & Awning WindowsOur Casement Windows offer you design and function with beauty and energy efficiency.

Slider WindowsHorizontal Slider windows are engineered to provide you with superior durability and ventilation.

Picture WindowsPicture windows provide abundant light, a spacious view, plus the benefits of home energy savings..

Garden WindowsGarden windows bring the outdoors in, showcasing your horticultural expertise.

Bay & Bow WindowsBay and Bow windows are constructed using your choice of Picture, Double Hungs or Casements.

Architectural Shapes WindowsArchitectural Shapes give you personal design with distinctive style. Choose from a variety of shapes and sizes to compliment your home.


Financing Available

Lancaster Door Service offers 18 month no-interest financing for qualified buyers! We also honor all manufacturers' warranties and we guarantee our parts & labor on every door and opener we install.
Apply Today!

Call Us at 717-394-4724 for Professionally Installed Residential Replacement Windows.
Get inspired. Be creative. Have Fun!
Explore ProVia products on a home similar to yours or upload a photo of your own.