Humidity in a basement during the summer in your climate is absolutely normal. A mechanical dehumidifier is a necesssity; don't expect to ever be without one. Our current home is 57 years old and I'm still emptying the dehumidifier once a day.

Humidity levels in a new home basement will be particularly high. Besides the normal water in the air, there are literally thousands of gallons of water in the concrete walls and floors that are continuously being released as the concrete hardens over the years.

Be sure to run the exhaust fan in the bathroom whenever the bath or shower is used. Keep doors open to allow circulation. Closets on the perimeter wall can be a big problem.

Keep the windows in the your basement closed. Don't "air out" the basement.--you'll just be letting in more damp air. To keep your electricity costs down, size the dehumidifier correctly. Don't use a dehumidifier that is bigger than necessary.

Here is a link that might be useful: Dehumidifiers

My home has 4 separate rooms

In the basement?

Try the hallway and entry. And try to keep the doors open. As you know from your link, you may be a candidate for a whole house system. Or simply buy a couple of small portable units and use them both. So much depends on climate. For deep South homes, see the link.

Here is a link that might be useful: Conditioning Air in the Humid South

The dehumidifier should be sized so that it will not have to run full time. No humidifier will last long at that pace; the coils can actually freeze up. It's hard to imagine how a dehumidifier could be too big.

Moisture can enter the basement from humid bathroom air or from humid outside air and it usually condenses against the cool concrete walls. Also, inadequate waterproofing on the outside of the walls can allow water to slowly enter through the wall and this can be exacerbated by not enough slope to the grade at the perimeter of the house and the absence of a footing drain. The absence of an adequate vapor retarder membrane under the floor slab can also add to the moisture problem.

The fact that the window wells filled up indicates a failure to provide a drain at that location. See if that was included in your contract but omitted.

You need to assume all of these issues are problems and then try to eliminate them one at a time.

First, get the downspout terminations and surface drainage to run away from the house.

Then put a piece of plastic on the concrete slab and tape the edges with duct tape. If moisture gets trapped under the plastic after a few days, the builder probably omitted the code required vapor retarder membrane under the slab. He might also have used a damp sand bed under the slab and that can take a long time to dry.

What does the sump pump serve? Is there a perimeter drain? Is it outside or inside?

Find out what the exterior wall waterproofing was and what kind of drainage/protection/insulation board (if any) was put over it.

Your contractor is obligated under the warranty to do all of this for you since the moisture is excessive but he will probably drag his feet and blame issues beyond his control. If you can't push him, you might might have to get out in front and figure it out yourself. A local home inspector can be helpful.

thank you Macy. I appreciate that. I just wish I didn't have a half dozen people saying 4 different things :)

The sump pump is the perimeter and it drains out the back of the house via a long white drain pipe.

we're going to take care of the grade as soon as we get back from vacation

determining the basement layers will be done in the a.m.

who or what kind of proffessional to bring in is what I need to know. The builders guy he sent out was even saying out a building inspector can get their license out of a magazine. I'm really feeling like our builder is nothing but a used car sales men in disguise

I just wish I didn't have a half dozen people saying 4 different things :)

Only two anonymous voices here, not in conflict that I can see. But as a builder I like to think that the home was built right in the first place. However, the flooding window wells clearly show some oversights.

And on rereading your post I wonder if there's not some underground water flow that is the source or contributory to problems.

Home warranties here are through a government mandated programme that is arms length from the builder and can order and pay for repairs. At some point you may need an impartial expert too. An inspector accredited by one of the several associations may be of help-- American Society of Home Inspectors, International Association of Certified Home Inspectors, National Academy of Building Inspection Engineers or the National Association of Home Inspectors.