I had 13 windows replaced with Marvin and had the same problem with the gunk on the windows and the excessive sealant where the windows are inserted into the frame. It took me hours to remove it from the glass with a razor blade and solvent and I had to use a blade to trim all of the windows that were oozing out the sealant.
I think they were seconds but could never get a satisfactory answer from the installing company. He came out and said "It doesn't affect the performance" Good gracious??? AND, when I wash the windows I still see the advertising logo in the upper corner. I am going to install a Marvin Sliding door from a different installer and am hoping for the best.
I would recommend that buyers have the windows delivered in advance of installation and inspect the product.
I am going to do this on this installation. Attached photo is after I cleaned up the overflow.
This reviewer shared experience about damaged or defective and wants this business to read this review and look into the issue (if any). The author is overall dissatisfied with Marvin Windows And Doors and uploaded a picture. The most disappointing about marvin windows and doors door from Marvin Windows And Doors was poor product quality, bad customer service and poor quality of premium windows Reviewer wants customer support to reach out to him or her ASAP for further discussion of this matter.
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