Pressure washing and power washing are two terms that often get conflated to a pretty large extent at any given point in time. A big part of the reason why that is the case has to do with the fact that they sound quite similar, so you can be forgiven for thinking that the results that you would get for them are going to end up being one and the same in some way, shape or form. However, suffice it to say that pressure washing and power washing, while definitely somewhat similar, are in no way exactly the same.
If you hire someone for League City pressure washing, they would likely not use any kinds of chemicals in the water at all. Instead, they would simply use a combination of high pressure rates and warm water temperatures to clean any of the surfaces that you want looking spick and span. Power washing, on the other hand, generally tends to involve the use of things like chemicals, soaps and other such materials due to the reason that this helps the washing process finish at a faster rate and it can also be useful from a sanitization point of view.
Either of these services would be great for you if all you are looking for is a home that is as clean as it should be both inside and outside. That said, you should also try to become aware of the distinction between these two terms because hiring someone for pressure washing and getting power washing can be somewhat inconvenient for you since it would not give you the chance to fully satisfy all of your needs.