|
Not aware of any companies who pump new argon into installed windows. And if there was such a company, I highly doubt they would touch a unit from 1968... 45 years on a sliding door? It doesn't owe you anything, IMHO. If all it has for symptoms is a little moisture, you have done well. A quality slider will run you $1200-1500 plus installation. Vinyl will be cheaper. You get what you pay for.
|