08:55AM | 03/29/07
Member Since: 03/28/07
1 lifetime posts
We have a problem with the vinyl windows in our condo. On the upper part of the window there are two spring loaded plastic "prongs" (one on either side) that guide the window as it is slid up/down. pulling back on the spring loaded piece releases the upper part of window for removal. One of the "prongs" is broken and i need to replace it. Not being the orig, owner I looked up the brand. All I have found is the name MASTIC. You answered one inquiry about Mastic windows by giving the PVC industries web site, which lists local distributors for homowners; I called the nearest one and was told that the distributor was incorrectly listed and was only a wholesale dealer. Also, there are 5 or so mastic window mfgs in the area and they could not help me any further. Is mastic a brand name or a generic vinyl cladding technique? PVC has no address on the web site.

This is just a small part but tracing its availability is becoming a major operation. would be grateful for anyhelp.
5903 parts for mastic win


09:25AM | 03/29/07
Member Since: 04/25/05
1915 lifetime posts
Try here.

And specifically one of these. You will need to do some measuring.


08:19AM | 08/17/10
Member Since: 08/16/10
1 lifetime posts
Did you have any luck locating these? We bought our house earlier this year and these are broken on at least four windows. I have tried all the similar replacement parts from the local Home Depot and Lowe's, but the holes don't line up and I don't want to drill into the window.

There has to be a place to purchase the Mastic specific parts?


09:19AM | 03/29/13


11:56AM | 09/30/14
PLYGEM will not help anyone who has Mastic windows before 2010! I had over 22 windows put in my home around 2005. Many windows have become either cloudy or spotty. One window shows the argon gas has escaped and therefore making an ugly appearance on the lower half of my window. They are not helpful at all! I would never recommend this company or ever deal with Mastic again they are horrible.


07:24PM | 05/11/15
part number 1054
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