Have a good builder look at it first. It could be rising damp or it could be a leaking roof, guttering, etc.. Depends on construction mainly but they can inject a solution into the bricks to stop rising damp but it is invasive, also doing a short section only may just move the damp along the wall further.... Keep us posted on the determination.

A person that has the roof plumbing qualification Fair Trading NSW Roof plumbing (You should be able to google your states relevant information). That person may be a roofer or plumber (more specifically a roof plumber but we often tend to just to refer to ourselves as plumbers). As previously stated, roof tiling is a separate qualification all together. Just check with whoever you decide to engage. I think the advantage of a plumber/roof plumber is that they can take into consideration your entire stormwater drainage of your home and ensure it is adequate from roof all the way down and through to your drains.

There are various career options that you will find once the time comes for you to make a decision in this regard. One of these is a field engineer. If you are wondering what is a field engineer, we are going to shed some light on the profession so that things can become clearer to you and you can decide if this is the right career choice for you. A field engineer refers to the person you find actively working at job sites instead of in the office. He provides services to the clients at their homes or business sites. There are a variety of fields. You will find a field engineer software expert, a field engineer who installs hardware, and one who is involved with the repair of products among other responsibilities that he handles. If you want to know more about the field engineer toolkit, it would basically depend on the area of service. A field engineer is required to have a great deal of expertise in the service that he provides. He needs to know everything about the product and should have the ability to solve problems. Strong communication skills are also required since he is required to interact with clients directly.

Depends where you live. I live in a rural area and we have a lot of people advertising as being "handyman" who would do small jobs like this.