The customer service is nonexistent. Many calls and emails, promises and no results. The windows and doors are under warranty yet not being serviced/maintained. Once at last a worker came out, bless him- the outrageous smell- just waited till out again. What he did- instead of adjusting doors, he smeared some silicone around the glass panes. Instead of exchanging window handles was about to take mine and leave an even older-not only different style but worse condition handle. When I pointed this out he swiftly put back my handle and left. Leaving his old on the counter and saying he’ll be back. Months went by never heard again.