Do you have a clause in your lease addressing this? If you do not and he asks for reimbursement you should do so. (After having it inspected to make sure everything was done correctly.) Have him give you a receipt and only reimburse him his cost. If you give him double his cost like some others have suggested but then tell him to never do it again, it will happen again because he made a profit off of it this time.
If you have a clause in your lease which addresses it and he asks for reimbursement, refer him to the lease and politely decline.
I have a clause in my current lease but will be replacing it with this in my new leases:
13. Tenant’s Maintenance and Care of the Premises.
(A) In addition to the duties imposed upon Tenant by this or other provisions of this Lease, Tenant shall at all times maintain the Premises in good condition and in reasonably clean and safe manner. In addition, Tenant shall not knowingly, intentionally, deliberately, or negligently destroy, deface, damage, impair, or remove any part of the Premises or knowingly permit any person within Tenant’s control to do so. Tenant shall use felt pads, rugs or similar scratch prevention materials under all furniture items or other items placed upon any hard surface flooring in the Premises. Bathmats or rugs shall be used on the floors in all bathrooms in the Premises to help prevent standing water on such floors. Tenant shall not place any additional locks on the Premises, including, but not limited to, exterior and interior doors. Landlord shall provide a key to the Tenant for the Premises and Landlord shall keep a duplicate key for access. Tenant shall not cause any of the locks or cylinders in the locks to be changed or re-keyed in any manner. Tenant must keep the Premises free and clear of all debris, garbage and rubbish.
(B) Except as may otherwise be permitted by applicable law, Tenant shall not perform or contract with third parties to perform any repairs of any kind on the Premises without the prior written consent of Landlord. If any repair which is the responsibility of either Tenant or Landlord becomes necessary, Tenant shall notify Landlord, in writing, as soon as possible and allow reasonable time for the work to be completed. Any unauthorized work performed or contracted for by Tenant will be at Tenant’s sole expense and no deductions or offsets in Rent or Additional Rent will be permitted.
(C) Tenant shall not make any additions, improvements, or alterations to the Premises unless prior written consent is given by Landlord, which may be given or withheld in Landlord’s sole and absolute discretion. Any additions, improvements, or alterations made by Tenant must be completed in compliance with all local, state, and federal laws. As used herein “additions, improvements, or alterations” includes, without limitation, lock changes, painting, replacing fixtures, installing wallpaper, attaching shelves, installing curtains or shades, or other permanent or semi-permanent changes to the Premises. Additionally, no trampolines, pools, satellite dishes, TV antennas, air conditioners, spas, swing sets, or other similar features shall be added to the Premises by Tenant unless express written permission is given by Landlord, which permission may be granted or withheld in Landlord’s sole and absolute discretion. Any additions, improvements, or alterations to the Premises made by the tenant of a permanent or semi-permanent basis become the property of the Landlord. The tenant cannot remove additions, improvements, or alterations made to the premises (even if the Landlords permission to install said additions, improvements, or alterations was not obtained) and the landlord does not have to pay for any additions, improvements, or alterations made by the tenant.
(D) Tenant shall be responsible for all costs related to any repair or maintenance of any plumbing stoppage or slow-down caused by Tenant, whether accidental or purposeful. Tenant agrees not to place into any drain lines of the Premises any non-approved substances, such as cooking grease,sanitary napkins, diapers, children’s toys or other similar object that may cause a stoppage. Tenant shall notify Landlord of any plumbing leak or slow drainage within twenty-four(24)hours. Landlord shall use reasonable efforts to remedy the plumbing problem. Tenant shall only use a plunger to attempt to fix a slow or stopped drain, and shall not pour chemical or other drain cleaners into any stopped or slow drains. Tenant shall also be responsible for any plumbing system freeze-ups occasioned by Tenant’s negligence.