Fabricating an aluminum fence costs about $4,350 on average, ranging from about $2,450 to $6,500. Your fencing costs can run as low as $750 or as high as $11,000 or more, depending on the fence's size, complexity, and geographic location. You should consider additional cost factors including the thickness of the aluminum, height of the fence, necessary permits, and custom colors.

Who pays for a new fence between neighbors depends on its location relative to the property line. If you build the fence entirely on your property, you are solely responsible for the costs of installation, maintenance, and repair. If the fence is built directly on the property line, both neighbors are typically responsible for the costs. In this case, it is essential to consult with your neighbor beforehand to agree on a plan for payment. While you should always inform your neighbor of your plans in advance, you generally cannot force them to contribute financially unless there are specific local laws, such as in California, where both parties might be responsible for costs unless a different agreement exists. It's a good idea to get a property line survey to know the exact boundaries before building.

When your rolls of silt fence join together, you’ll want to overlap them to make sure they’re still as effective at keeping water out without requiring fastening together. Overlap two sections of the silt fencing so that two sheets of fabric cover the span of two posts. If you want to fasten them together, you can staple them or use a zip tie, depending on whether your posts are metal or wood. 

Retaining walls offer more value to a home if they also divert water, prevent erosion, or help support a foundation. The ROI of a retaining wall is between 100% and 200%.

Both fences and walls can increase your home’s value, but you’ll spend significantly more on a wall than you would on a fence. A stone wall costs approximately $5,000, a retaining wall costs $6,100, and a fence costs $3,200 on average to put prices in perspective.