Need to refix a cast iron pipe to side of house

[LP3LP3]

I've got a cast iron pipe on the side of my house that I believe is a sewer stink pipe. My house is over 100 years old and is end of terrace so the house has moved over the years and the pipe is now only attached to the wall at the lowest point and the two higher brackets do not reach the wall any more. I'd really like to keep the cast iron pipe, if possible, but don't know where to find brackets to keep it tied to the house. Any ideas? Or should I seriously consider replacing it with plastic? Thanks.

 

[JimCrow]

http://www.drainageonline.co.uk/4-I...Holdfast.htm?gclid=CImBkLm53bwCFRDLtAodpDsAZA

 

[LP3LP3]

Thanks. I think the pipe is wider than 4inches. I'll need to do the 'measure circumference to get the diameter calculation' to confirm but I'll check out that site more. Thanks again.