Custom Window
Trim Packages

Empowering Homeowners to Do It Themselves and Speeding up the Process for Contractors!

Get a Quote

Buy 9 window surrounds and get the 10th FREE.

Whether you’re a seasoned DIYer or a professional contractor, our ready-to-install trims help save hours of work and deliver a polished, custom look every time.

Order Now

Prefabtrim – Custom Window Trim Packages

What is PrefabTrim?

Prefabtrim is a custom window trim company where customers can order interior window surrounds, also knows as casing or trim, and have them delivered to their home. The client needs only to select the style of trim for their surround, input a few measurements and Prefabtrim ships them to your door. It takes minutes to assemble, eight screws, and is ready to install. It’s the perfect solution for those doing home window repair. 

View Products
custom window trim by prefabtrim is made to your measaurements and shipped directly to you ready to install
Sustainable Shipping for Custom Window Trim Packages - Prefabtrim

Sustainability

Our sustainably packaged custom window trim arrive to your address ready for assembly. The package will include four pieces including: 

 

  • Window sill with apron attached
  • Left extension jam with face trim attached
  • Right extension jam with face trim attached
  • Header extension jam with face trim attached
  • Eight screws and the surround is ready to install.

Choose Your Style

Prefabtrim offers three different styles of custom window trim to choose from in natural or primed finish, with our without a sill. We offer how to videos on measuring your existing surrounds, how to assemble and how to install.  Simply choose a style, measure your windows and submit for a quote.  Quotes are usually responded to within 24 hours. 

    Prefabtrim Custom Window Trim Kits

    How it Works

    Custom Windows

    Our Window Products

    Window Surround Solutions

    We offer the most popular trim options.  
    3 1/2″ Flat Stock
    2 1/2″ Colonial Casing
    3 1/4″ Colonial Casing.  

    Other options available upon request.

    Finishes

    All trim comes in either Natural stock or Pre-primed for all styles. Custom painting or staining available for additional cost. 

    Benefits

    Our custom window trims are cost effective, with quick turn around, and are easy to assemble and install. The best part is you can do your home window repair yourself, which means no strange carpenters in your home. 

    View Product Details

    Custom Woodworking

    Custom Products

    Custom Kitchen Solutions

    Custom Bathroom Solutions

    Plant and Pet Shelves

    Outdoor Furniture and Structures

    High quality, made to order!

     

    View Product Details

    What Our Customers Say

    Thank you Patrick and company!

    “Thank you so much. It was a pleasure to work with you. Next year i will be asking for more.”

     

    Tim Mears, Contractor

    News Blog

    What Are Window Casings? An Easy Guide to DIY [2025]

    Read More