I recently had gable end glazing installed and love the natural light it brings in! Has anyone noticed if it affects heating costs much during winter? Also, any tips on finding reliable installers who won’t break the bank?

https://www.e-architect.com/articles/the-architectural-impact-of-gable-end-glazing

I recently had gable end glazing installed and love the natural light it brings in! Has anyone noticed if it affects heating costs much during winter? Also, any tips on finding reliable installers who won’t break the