Issue with a tennant, a good thing?

[Erik Drentlaw]

So this might be strange and it might even be a good thing, I'm not sure, so I need some help deciphering the situation.

In my duplex in Dallas I have tenants that has been with me for almost 2 years now, they have been awesome, pay on time for the most part and keep the place very very clean and tidy.

However about 6 months ago they started to complain about little issues every time I saw them.Part of the weather stripping needs to be replace, the threshold needs to be repainted, need a timer to water the foundation. All good things right??? So while I have conceded to most requests, the tenant has decided to starting doing things them self. So far he has replaced the address numbers for both sides, repainted the threshold, re-caulked around the bath tub, painted around the entrance, and has now paid someone to mow the lawn when it is taken care of by someone else, he said it was looking shabby.

My question is am I in any trouble with them doing all of this work? Do I need to tell them to stop? I cant decided if they are doing this because they are mad at me or they just want the place in mint condition.

Thanks for your help!!