upkeep

noun

1. the process or activity of providing an establishment, machine, person, etc., with necessary or proper maintenance, repairs, support, or the like: The machine’s faulty operation shows that no one has attended to its upkeep.
2. the total sum of the costs or expenses for this.

noun

1. the act or process of keeping something in good repair, esp over a long period; maintenance
2. the cost of maintenance

n.“maintenance; cost of maintenance,” 1884, from up + keep (v.).