Your first response is likely to be unprintable on a family friendly website, however that crack might not be as serious or as expensive as you may originally think!
First thing is to clarify what kind of crack it is?
Is structural, or non-structural? Dry, slightly dry or flowing buckets?
Sika has solutions for all scenarios
For structural dry or slightly dry, why not look at Sikadur®-UA Concrete Fix. It's suitable for application to both dry and damp surfaces and adheres well to wet or submerged concrete or steel. Better yet, it can be applied underwater. Excellent non-sag properties for vertical and overhead work with equally excellent adhesion to concrete, steel, timber and many other substrates.
For non-structural dry or slightly dry, Sikadur®-31 CF Normal is a great choice. Suitable for dry and damp concrete surfaces with very good adhesion to most construction materials. High initial and ultimate mechanical strength.
For flowing buckets, get the professionals in.
We're happy to give our impartial advice as to the best product for the job or if we can't help, we'll know someone that can.
Give us a call or pop into see us