Water Pipe Repair

I posted a topic last week about my water pump doing intermittent pumping roughly 1No pump every minute.

With various advice given and tests conducted on my system it is clearly evident now that the source of the problem is a leak under the outside concrete pathway which surrounds the house as there is evidence of water now staining the concrete.

Can anybody recommend a competent repair guy in the HH area who can locally remove the concrete to access the leaking pipe, change the damaged portion of the pipe and make good the access hole in the concrete?

Thanks.