Double Glazing Unit Condensation / Blown DIY Repair.

Its really depressing how many comments say "just go and buy a new one", totally missing the point. Repairing things is a great thing to do on many levels (eco, ethics quite aside from saving money) if you have the skill and inclination & no one is forcing anyone to do this against their will. Great repair well done!. I wonder if these people wash their clothes, dishes etc or just buy new ones.

It's good to see someone actually repairing something rather than just throwing it away and buying a new replacement.

I used to make these many years ago so a couple of tips, when cleaning the sealant off use start with a new stanley knife blade to remove the bulk then brillo pads to lift the remaining old adhesive, when reassembling put the 2 panes in place with the spacer bar between and hold them in place with lots of large bulldog clips, drill a hole in a piece of wood and fit it to the end of the sealent nozzle so it fills the gap and smoothes the sealant at the same time moving the buldog clips as you go being careful not to push the spacer in with the sealant. The packers also function to hold the plastic frame square so they are usually on the hinge side at the bottom and the outside top. The dessicant doesn't just absorb water it bonds with it, you need to get it very very hot to drive the water off if its even possible, try the crystal cat litter thats in sealed poly bags and fresh. Adhesive aluminium tape will hold up to water better than duct tape and protect the sealed edges better

I don't understand why people go to the bother of watching a video on something they then spend time on telling you is not worth doing. He did it, he took the time to show others what's involved, someone can make there own mind up whether they want to do it. If there is additional information that can be added by commenting then this is valued, but just slagging it off as a waste of time or easier to buy a new one is completely missing the point of the video. Having said that, any interaction on YT is power to the algorithm, but just demoralising for the creator.

Well done, fascinating to watch and I learned enough to know now - that I would not tackle this. As an engineer and accomplished DIY (and tight arse) I think that knowing what not to tackle is also valuable knowledge. Thank you.😉👍

Some people enjoy “having a go” at mending stuff and get more pleasure than giving in and going for the easier option. Good on you for giving stuff a go. We are too quick to send stuff to landfill etc so seems much more enviro friendly. We live in such a throw away society. Can see its Not an easy job, tedious and longwinded but great when you get that feeling of achievement at the end. Well done 👏🏼👏🏼👏🏼👏🏼

Very cool. Us DIYers will always find a way. Who cares if it costs more....the satisfaction is in knowing you did it yourself

All my years looking at DIY videos on you tube this is the best by a mile, thank you very much👍

I was always lead to believe they were vacuum sealed units, amazing thanks

One bit of advice for any budding DIY'ers. When you remove the beading from around the glass, before removing the glass unit, measure it. I replace sealed units for a living. Many a time I get called out to blown units to replace with a new unit, and on trying to remove the old unit, if its stuck in fast (usually because the original fitter used tonnes of silicone, putty or even tacks to secure the unit on wooden frames) the unit can and does crack/shatter. This renders a DIY job useless and you'll end up purchasing a new unit. If this does happen, leave the old one in place, the outer pane may not have cracked until you get a new one to fit. Its reverse fitting, easy to do, make sure there are no retaining bolts sticking out of the uPVC window frame that can catch on the new unit.

Great job. Way too much involved for my limited skills and patience but nice to see.

Similar idea to Edward Doyle's below. I had the very same problem a few years ago. I'm a lazy person so I spent some time trying to figure out an easy way to solve it without removing the glazing unit from the window. And I did. With the side window open I removed the upper and lower locking plates in the edge of the window frame. This allowed me to see the black sealer edge of the glazing unit at the top and at the bottom. VERY carefully I drilled a hole (about 5mm) through the black sealer until the drill bit was visible between the 2 panes. I did this for the top and bottom. Then I got my vacuum cleaner and placed the hose against the top hole and let it suck away. This started removing the moist air from between the panes as dry air was sucked in through the bottom hole. After 10 minutes the water vapour was gone forever. Then I sealed the 2 holes with a sealer, and replaced the locking plates. As it happened, I did this on a sunny day when the sun was shining on the window, so that helped. Total time to do the repair was about 30 minutes. I hope this might help someone!

Excellent video i admire your patience and skill. It's always the so called experts who put down anyone that has a go!

That was a fascinating and informative video. I had no idea whatever how D/G units were put together nor the fact that they could be repaired. I certainly could not tackle a job like that. I recently had a D/G unit replaced, it was about 1m x 0.75m and cost me £90.00 all in. He came and looked at the job, measured up and returned a few days later with the replacement unit and fitted it. I thought that was not a bad price. I suspect you spent quite a few hours on that job plus materials. However, as you and others have said, it's not just about money.

As a local repair company I would join the "buy a new one" club. Time is money and cheaper to buy new glass and fit.

Great video, thanks. How great to see someone skilfully fix rather than scrap and replace.

I’m impressed that’s dedication to art of not being wasteful because that must have taken up a fair bit of ur time and patience for that matter but more power to u for doing so u made fine job of that repair also luv ur laid back style of speech u sound like the type of guy that is never fazed by any situation great stuff

As a Yorkshire man, this video was perfect. Just make sure you pick a dry day to do it!

Great to see this. I never realized there was anything inside the frame.

a man who knows his trade,top skills .thank you,ihave several to do that i installed 20 years ago.