Absolutely!
The air rising into your home from your crawl space is very damp and humid. Damp, humid air is harder to heat and cool; thus, causing your HVAC system to work harder regulating the temperature of your living space. This raises your electrical costs and causes the system to work harder than necessary, making repairs or even replacement more frequent.
Everyone knows that a lot of money each year goes toward heating and cooling their home. However, many do not know that amount can be cut by anywhere from 15% to 25% by fixing their crawl space!
Encapsulating your crawl space with a 25 year warrantied product, like CleanSpace liner, will isolate your home from the earth (reducing the humidity), and a sump pump will collect and excrete any ground water that could potentially cause issues to your crawl space. Rounding off your crawl space with a dehumidifier, like the SaniDry Sendona (the world's most efficient high-performance dehumidifier and filtration system), ensures dry conditions where mold will not grow.