DG Window Repair + More

[Ninja59]

Just wondering if anyone has any recommendations for who to fix a DG Window that has misted. I suspect the seal has degraded over time and needs replacing.

But, looking around I am struggling to find anyone that is recommended, or an idea before quotes of what is reasonable to have it repaired.

Additionally, there would probably be more work as well to replace some toughened glass elsewhere .

Location is Kent

Thanks in advance

Edit I meant to put this in Homes, Garden and DIY, can a mod move it please!