Window Sash Replacement

May 2, 2026

Did you know you can replace your rotting window sash rather than replacing the entire window?  It true!  Whether you have Rockwell Windows, ROW Windows, Jeld Wen Windows, Semco Window, Andersen Windows we can fabricate and install new sashes for a fraction of the cost to replace your windows.

How does sash replacement work?

Step one: Contact us to see if your windows are a good candidate for sash replacement.

Step two: We come to and evaluate your windows to see if they are a brand we can fabricate a new sash to fit your main frame

Step three: We fabricate, pre-finish the interior, and install the new sashes into your existing main frame.

Why replace the sash rather than the entire window?

the main reason is you will save thousands of dollars over window replacement.  If your window sashes are experiencing wood decay, we do not repair the sash, we replace the sash with a new one.  A sash is the entire section that swings out when you crank the handle, it is the glass and the wood around it.  Replacing the sash is not a lateral move with our product, our sashes are an upgrade on every level from what you have now.

The reason some brands like Rockwell Windows are an excellent candidate for sash replacement is the main frame of the window, (the part in your wall) is solid extruded aluminium, it will never decay.  Once you replace the sash, you are back to new window status, almost.  We upgraded two very important components when we build your replacement sash.  We start with solid full-length Poplar wood rather than finger jointed Ponderosa Pine which is what Rockwell used.  We use Accoya Wood for the bottom rail.  Accoya is a pressure treated wood that boasts an extremely long-life expectancy.  We dip the bottom of the Poplar stiles in a non-toxic liquid called Woodlife Classic 111 to prevent premature wood decay.  We use a “Silicone Wet Glaze System” with an interior wood stop when glazing the glass into the sash.  We apply a bead of silicone on the exterior at the bottom rail where the glass meets the clad.

Most important…  We use Cardinal IG® (insulated glass) because they build the best insulted glass unit in the country, hands down.  They have over seventy years of experience and data to prove it..   This is the same glass company used by Andersen, Pella, Marvin, and others in their Premium Windows.  Cardinal IG® has a Twenty (20) Year Manufacturer’s Seal Failure Product Warranty. We are an authorized dealer of Cardinal Insulated Glass.  For your convenience I’ve included a link to view the Cardinal Glass Industries Warranty as well as their Lodz-366 coating which come standard with our replacement sashes.  You can opt for clear glass if you prefer.  OSR warranties and policies can be found here.  All warranties are transferable.

We do everything in-house.  We do not outsource anything other than the insulated glass and the profile forming of the aluminium clad and wood.  We have full control of the build-quality from raw wood to the installation of the sash.  The new sash will have all new wood, LoE glass, aluminum clad and weather strip as well as new hinges top and bottom.  The only things we reuse from your original sash are the lock keepers, strut bracket, and control bar.  However, we can replace those if needed.  

Contact Us:

WindowRepairGuy.com and our experienced craftsmanship can fabricate and install new window sashes and bring your windows back to life.  You’ll Love Your Windows All Over Again!  Contact One Source Renovation, LLC at WindowRepairGuy.com