Virtual Window Showroom

Replacement windows add significant value to your house not only by enhancing its curb appeal, but more importantly, by improving your energy efficiency.  According to the Energy Information Administration (EIA) and other sources, significant heat loss occurs through windows and doors!


Making your home more energy efficient also boosts your home's resale value, so the likelihood that you will recoup your costs is very high.  One remodeling magazine stated in a "Cost vs. Value Report" published in 2007, that upscale vinyl window replacements resulted in national recovery rates well above 70%.  Replacement windows are a truly solid investment.


  Quality  Products
 Professional Installation
  So Many  to choose from


Definis and Sons installed windows feature a wide array of styles, decorative options, complementary trim selections and performance packages for a fully customizable product to suit your personal style.  Our windows offer the ultimate choice for beauty, comfort and energy efficiency.  They also help to pay for themselves through lower energy cost, freedom from maintenance and increased property values!

Call us!

215-624-7118 or 800-322-6177

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Visit our huge showroom!
Financing is available | 
Call Now: 215-624-7118 or 800-322-6177
Do you need professionally installed windows or doors?
super service award

Visit Our Showroom
8312 State Road

Philadelphia, PA 
Monday - Friday: 10:00am - 4:30pm

Wednesday: 10:00am - 7:00pm

Saturday: 10:00am - 3:30pm, Sunday: Closed (Family Day)

(215) 624-7118 or 1-800-322-6177

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