Need guidance on drainage
I'm looking for some guidance on where to start with a drainage problem. The attached photo shows some of the considerations. My primary issue is water pooling in the carport when it rains. I've gotten some quotes on fixing this with either a channel drain or a graveled swale across the front of the carport and around to the side yard where there is ample fall into the backyard away from the house.
However, I'm wondering whether I should also do something to better drain around the front of the house. Currently, there is a low point in front of the picture window right in front of a foundation vent into the crawl space. I am getting the crawl space encapsulated and that vent will be sealed, so moisture will not be a problem inside the crawl space. However, I want to protect the foundation as well.
Should I be looking to have a drain installed all along the front of the house, draining across the front of the carport to the side yard? One of the crawl space proposals I received included a window well in front of the vent, which I know only gathers the water and doesn't actually remove it.
The previous homeowner is still friends with the neighbor behind me and he said that he had a few truckloads of dirt brought into the front yard to help water drain around to the left of the house. The front yard does have a decent slope around to the left, so I believe it's only the downhill side of the pathway that drains toward the house.
The previous owner had problems with water coming into the kitchen. I haven't had that, but there is a bit of mildew on the bottom of the block wall at the inside front corner of the house where it meets the carport. Fixing the carport drainage may possibly keep that area from getting too saturated.
One other point to mention: the downspout is connected to a drainpipe that the previous owner tells me used to daylight in the backyard. It's covered over now and I can't see where it would have been, but it does still drain well when it rains.
Also, I have had the foundation inspected and everything is in good shape for its age.
I plan to hire a professional to address this problem. Here are some questions that I thought this forum might be a good place to discuss:
1. Will the carport drain or swale likely take care of most of the problem, or is it critical to address the front of the house now?
2. If I can get away with a partial solution for now, is a channel drain a better option than a swale because a future drain along the front of the house could be tied into it? (From reading on here, I see that above-ground drainage is typically preferred because it doesn't clog.)
3. What type of contractor would I call about the drainage along the front of the house? The estimates I've gotten for the carport issue have come from landscaping companies, but it seems like maybe I need to switch to basement waterproofing companies.
I do not have a ton of money to pour into this at the moment, so I am looking for a reasonably effective solution with maybe the option to add to it later. Thanks for any input you can provide.