"I am so excited about my new windows and sliding door that were installed today by Guardian! I hesitated for months to commit to a company for this job. I just did not feel confident in the several other companies who I interviewed to do the work. I definitely made the right decision to hire Guardian. The crew arrived on time this morning and were very hard-working, professional and obviously knew what they were doing! I have complete confidence in this company and will definitely recommend them to my friends, family and neighbors!"