You've posted a link where "some repairs" are made. Any sites I've visited either suggest the original installer (others won't touch another mfg window) or replace it (as you've always believed,
as have I).
It may very well be that those windows were not "the best" at the time of installation and so they're also not cost-effective to repair (if it can be done at all) and then, how long will it last (if at all), regardless of guarantee?
As with most products these days, the technology has improved so much it may save you more $$$ in the long run to replace them (even to replace ALL your double-paned windows) with new ones.
There's an old saying that I've come to learn through experience to be very true: don't throw good money after bad.
Good luck with this one.
edit--> the link was posted 10 years ago. Doesn't seem to be much in the way of "copycat" companies doing that (although I must say I've not looked real hard to find any). I've never been able to get the
exterior of a window clean without brushing/squeegee/etc and don't see how they can get the
inside done either. I think there are liquid products that claim no wiping required but I've never tried them. AND with just normal air inside now with it's own moisture content (not argon or some other inert gas), I have to believe it'll fog up like before.
I guess you need to find people who've had the service done and ask them if they're happy--just like this post
. Dunno.
2nd edit-- I now see there are several services as you've mentioned and I've made incorrect statements about availability. I guess most of my post doesn't mean much and your request for users is really a good one. I'd delete most of my post but in the end, it's only my opinion so I've left it as posted.
As earlier, I wish you luck in your journey
