HOW TO: Replace Thermal Glass
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- Опубліковано 9 лют 2025
- Want to learn how to replace a thermal panel on a casement or slider window? A Kohltech Windows & Doors expert will show you how it’s done.
Note: Make sure you know your thermal glass width before replacing it. To do this, a trick is to remove the glazing stops, insert a business card between the glass and sash, mark the card once you hit the other side. Measure this distance and that will give you your width.
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*Great and Easy to instal **Fastly.Cool** Low noisy*
Thanks for the video and tips. Just changed out a cracked unit and this video made it a super easy project to follow. Cheers.
Well done video! I'm an "experienced" DIYer and needed some info on the bottom and side block install. Other videos on UA-cam simply didn't show that, but this one fit the bill perfectly! Many thanks!
These home improvement and DIY videos are such a useful tool. I've not done glazing but I wanted to see how it is done. Not only does it cut costs but it also helps people acheive things they didn't know they could.
I've learned a lot from watching these videos. I managed to do the laminate flooring in my home and box in some pipes in my bathroom.
+Hannah nothing beats a womans touch
This product works well. I got it next day delivery!Fits to our smaller window, 16 inch. Perfect for the space needed.
Thank you for the great feedback!
This is a very well done video! Liked and subbed!
Thanks Charlie!
You gotta thank these guys for the informative tutorial.!
Excellent video! Thanks very much.
Nicely done and shown. Thanks for taking the time to show us!
Thank you!!!! We just replaced our thermal window after watching your video and it went incredibly smooth. The directions we received were clear but watching it done made all the difference. Thanks again!!!
Brilliant job. perfectly described the replace of thermal glass process in simple and brief way. Nice work.
Great Job.. Very informative. Thank you!!
Wilrausure Happy we could help!
Love the instruction, it looked to me like mission impossible to replace a thermo panel, with this video, at least I know it is possible, and I may hire one to do it anyway, but I am more confident in what I am doing.
Thanks for the video.
Where can I order the replacement thermal pane?
Great explanation of the process. Thanks!!!
awesome video , just saved me a grand
Can you please tell me where I can buy a flat utility knife like you show in the video? I can only find ones that have the scribed snap-off blades and yours appears to be a solid long blade ALSO, Great video! Very detailed, THANK YOU!
Thank you, it was a great help and easy to follow.
Not a problem Heidi, glad it helped
Is it normal that the flazing stops DO NOT come out?
Are some thermal units "embedded" into the casement?
What type of caulking is used?
The type of caulking used is GE sillglaze 11
One critical measurement was neglected: the thickness of the pane assembly. Double pane, triple pane can be made with differing thicknesses of glass, so, if the replacement is not the exact same thickness, there will be a major problem. Too thick and those glazing stops won't go back in. That means, unless you know the thickhness in advance, you will need to remove the old glazing before ordering a new one.
Good note, at Kohltech we have 3 widths depending on the window type. We suggest once you remove the glazing stops, sticking a business card between the sash and glass unit, marking the edge, and measuring that to determine glass width.
Excellent video.
Excellent video Kohler. I have Kohler windows and the top LowE sash on a single hung window has a blown seal so I need to replace it while keeping costs down. Your video is very thorough and incredibly easy to follow and will save me some money. Is the procedure the same for the bottom sash of a single hung window?
Is there a tip or a trick to work from the inside only and cut through the exterior caulking - once the glazing stopes are off? I was thinking of use a heat gun the melt it, but don't want to warm the vinyl . My windows are very high up from the outside but easily accessible from the inside. I was also thinking of using a suction holder to pull on the insert to remove them...any ideas . thanks
There are many varieties of silicone caulking, what should be used to install thermal glass in a vinyl window frame?
We use GE Silicone II Window & Door Sealant here, but any strong sealant/adhesive made for windows and doors work. You'll want it in clear.
@@Kohltech
Thank you so much for the input. My 27" x 8" thermal glass/vinyl window accent pane cracked for no apparent reason (I thought perhaps it was the waterbed in the room above). The broken window unit had no spacer blocks, and there were 2 types of caulk (one was very tough and still sticky 20 years after construction). I couldn't find any real guidance on the right caulking properties for this specialized application.
The waterbed was long gone when I removed the thermal unit, and I found plenty of clearance in the vinyl frame. The break happened on a cold day, and the entire double window assembly seems to have been jammed into an undersized framing pocket. That pane could have been badly replaced (wrong caulk) by the builder during construction, with poor installation and added thermal and mechanical stresses. Who knows, but now caulking won't be a contributing issue to failure!
Kohltech window construction appeals to the engineer in me. I really appreciate the advice from a manufacturer, and will look for your products when I can finally replace the "builder special" windows in my home.
Great video. Are there any online resources where I can buy the replacement unit? Local glass shops want about $250 for a 24" x 24" unit. The whole window this size can be bought at Home Depot for $110. Appreciate the help.
Thank You for the video
Great vid thanks
Daughter and niece. Nice picture!
Can you do an Octogon window please? We have a TAFCO 22" x 22" that I need to replace the IGU and I can't figure out how to get the IGU out.
Do you have one showing you replacing a broken sliding window (sash)? Great video btw!
Do you let the silicone cure before reinstalling the vinyl glazing strips at the end?
Excellent thank you. My replacement thermal glass is on the way and this video should help immensely.
The video is great but where can you purchase the glass?
you should be able to Google "glass repair" in your local area and they should be able to help you or point you in the direction of someone that can supply you the thermal units.
why does the caulking only go up 6 inches on the sides when replacing? (4.25 min mark on video) Why not all the way around?
So he just did the "Fixed" side.
Is the crank out the same?
Why not do the crank out?
Not all crank/casements are equal.
I think mine is factory sealed and can not be dismantled..
Any certain kind of caulking?
Try doing it for a 2nd or 3rd floor window on a ladder.
Why not cault all around ?!
Is it the same process for a sliding patio glass door?
It depends on what kind you have but most of the time, no. Patio doors are usually quicker fixes .
Great video. Thanks! If one of the two panes broke, should I replace the double pane unit?
Where do I buy a thermal unit?
Some narration inside/outside confusion takes over 1:45 to 2:35. Appreciate video nonetheless.
thanks a lot!!!
This is a great video but it does seem to show how easy it would be to break into a home then replace the glass and no one would know. Locked room mystery plot!
not really as the glazing stops are normally to the inside of the window/sashes
Problem is you would have to break into the home first to get to the window. And you would need an accomplice to hold the window. And the noise, how do you muffle the noise. And loud cursing when things don't go smoothly. And the dog barking... Columbo would nail you before you got the stops out. Maybe not such a mystery after all. But, at least you're thinking.
Thanks!!
where to order igunits to replace can anyone help
Harry Hill a glass company. And please let them replace the unit.
Just did work similar to this, except the glass was 100”x66” 267lbs a piece what a workout. Lol
What if it's on the second story ; ^ ;
Two face tape is best, less mess.
thats all fine and dandy but when its a solid double sliding vinyl welded frame i guess your screwed.
and that's how you do that!!
"Thermal unit," Hehe. We used to call them "window panes."
make sure you open your thermalpane from the crate BEFORE starting any removal of trim. They packed the crate with standard crate staples and ONE DECK SCREW. if you have ever tried to pull out a deck screw you would understand, long story short, broken pane sucks
+Mike Jackson i thought u were dead
🤗👍👏👏👏
tanqs