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Replacement Windows

Replacement windows are perfect for renovation or restoration projects.  At Precision Millworks we offer two types of replacement windows.  The first is our ENVIROGUARD™ Replacement Sash Kits.  Swap out old, double-hung or single-hung windows for new and efficient ENVIROGUARD double-hung windows.  The second type of replacement window is the double-hung to casement style conversion kit.  With this replacement window you can put in place a casement window where you once had a standard double-hung.

Our replacement windows can be customized with all the options of our new construction, complete window units including grid and grille light arrangements, finishes and colors, and operation. The ENVIROGUARD™ BT30 block and tackle double-hung replacement sash kit is an affordable and easy way to replace your windows.  They are not only beautiful, but they are also durable.

Our replacement windows are made with the same quality materials as our new construction assemblies and are also impervious to rot and insects.  Constructed with the highest quality cellular PVC, our sash replacement units have all the natural characteristics of wood, including great appearance–without the shortcomings of wood. They won’t rot, peel, splinter, decay, nor absorb moisture.  Plus, unlike vinyl windows, our replacement windows provide more glass space and our double hung sash kits are paintable.

Replacement Window kits
Warranty, American made, Award winning window design

Terminology for window parts. Name of window parts.


Made in the USA

Our products are proudly made in the U.S.A with our industry-leading 20 and 25 year warranties backed up by the craftsmanship of our workforce.


If you have an existing home and want to replace the windows to be more efficient, or maybe you just want to update the look of your home, or worse the windows you have are broken and non-operational, then Precision Millworks Replacement Window Kits are what you need.  Our window kits can be styled and configured just like our new construction window units.  Once you’ve determined you need replacement windows, design the look of your windows with all the options.

Note: When ordering replacement windows, measure the dimensions of your existing windows from the outside of the sash on the right to the left and then from the top of the sash to the bottom. Do not include the dimensions of any existing interior trim or exterior brick mold.



Installation Instruction for Replacement Windows


Warranty information for Precision Millworks, ENVIROGUARD Products, Updated January 1, 2016

Precision Millworks Warranties:
20 years for seal failure on double pane windows
25 years for all PVC parts on our ENVIROGUARD™ Series windows


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