If they are also replacing strut MOUNTS in addition to the struts (not a bad idea), then no, it's not excessive according to my books---I mean, it's full retail, by no means a bargain, but it's a listed "book price" for parts and labor.
I did the math with my parts and labor books and I got $820 less tax for the 4 struts, + 4.6 hours labor (whatever they charge per hour) + $482 less tax for strut mounts. So I get $1300 + maybe $460 labor at $100/hour.
The price depends not only on WHAT they are replacing, but what QUALITY they are using.
So the answer to your question could be YES, NO or MAYBE.
So shop around, make sure the quotes you get are for the SAME number of parts of the SAME quality. If you're quoted a price of some junk struts, no mounts, done at a mow and blow chain store, sure, it'll be less, but you may not be happy.
If you don't know what a strut MOUNT is, LOOK HERE: It's a great video about the entire strut/mount/boot system and what it does. This will help you make an informed decision in the midst of conflicting information.