"contact maintenance" is a correct and usable phrase in written English.
It refers to the act of contacting someone to perform maintenance or repairs on something. It is typically used in a work or professional context. Example: The company's contact maintenance department is responsible for coordinating repairs and upkeep of their office building.
Thus, contact maintenance can be ensured as prescribed.
A novel controller is designed capable of guaranteeing, for an a priori known nonsingular initial robot condition, (i) certain predefined minimum speed of response, maximum steady state error as well as overshoot concerning the force/position tracking errors, (ii) contact maintenance and (iii) bounded closed loop signals.
Contact maintenance to repair leaks.
If you notice mold growing on building materials, contact maintenance to have the mold removed.
If you smell natural gas, contact maintenance to check for leaks.
If you are not able to determine the cause of the odor yourself, contact maintenance.
According to personal correspondence with roof contacts, maintenance contracts were not renewed in the early 1990s, which means that the roofs had not been maintained in about 10 years at the time of survey.
16 Data were collected prior to the intervention being received (time 1 T1: 0 months), after the 12-week MobileMums programme was completed (T2: 3 months) and again after a further 6 month no-contact maintenance period (T3: 9 months).
"All of the affected records were inactive as a result of returned mail, National Change of Address, and 'no contact' list maintenance procedures," it said.
Instead of being the one responsible for collecting rent and late fees, you might act as the contact for maintenance or janitorial services.
If they are, then by all means contact child maintenance, but make sure that you don't contact your ex about money or hassle him to turn up more as this will just become an argument.
