No, unless you're on benefits. Solar installation is currently 0% VAT

Make sure you are not just replace windows for the sake of it. Sometimes the newer alternative down values the property- especially if the windows of a divided house don’t match.

@jonathan ah no they’re broken, and the main issue is one is frosted. Am claustrophobic and the frosted is bothering me

Have a look on Martin Lewis’s website where he’s written a whole article on solar panels including who qualifies for a grant. Basically only benefit claimants earning no more than £30-31,000 total income may qualify. Go to www.MoneySavingExpert.com to read the full article.

Windows- many people rip out period windows. Don’t make that mistake. Instead have them renovated and new glass installed if necessary.

https://www.idealhome.co.uk/news/renovation-mistake-period-features-removal-devalue-home-299744

If the windows are frosted it may be a requirement to keep them that way. They can be frosted because of a planning constraint so that neighbours privacy is protected.