Maintain It All also offers exterior power washing services. We are equipped with a self-heating unit on a trailer with its own water tank. Depending on the size of the job, we may need to use your water and must have access to it. Power washing services may also be needed to prepare for your driveway sealcoating to remove algae, moss, ground-in dirt or debris. If we feel it is needed, we will break down the cost on your quote.