Aerial cable replacement price

The cable from the aerial at my fiance's house has been damaged and needs to be replaced; we've called a local company and they've come out and given us an estimate of 110 pounds for the repair. It's a 3 story house so they'll have to come out with ladders and things and climb up on the roof, but all it needs is a new cable ran from the aerial down the outer wall to the TV, so does that seem excessive to anyone else or just me? Of course we'll get estimates from other places, but I figured I'd check here too.

That seems somewhat high.  According to the link, the price varies a bit with your location:

http://www.buildingsheriff.com/aerial-costs.html

That sounds more like a quote for a new aerial as well.