Hi Azita, I have worked with both, depending on your profit margin and what you are willing to spend, I would look for a "superintendent" with a contractor's license (NOTE: do not hire a handyman service, they will give you a ton of headaches, they only work for projects less than 10k) that means that they are the one's in-charge of the project while swinging the hammer, you could have most of the items pre-ordered from your local hardware or home depot (try their pro account, its great) and just have the workers pick it up (or delivered), and possibly have them spend and reimburse every week, that is just me and that is how I operate when doing a remote project.

Stay away from the “guru” sales-pitch events - they rarely increase your investment knowledge, they merely empty your wallet!

Stay away from the “guru” sales-pitch events - they rarely increase your investment knowledge, they merely empty your wallet!

Stay away from the “guru” sales-pitch events - they rarely increase your investment knowledge, they merely empty your wallet!

Especially, when a tenant invites you in whilst they grab their wallet or whatever.

Stay away from the “guru” sales-pitch events - they rarely increase your investment knowledge, they merely empty your wallet!

Stay away from the “guru” sales-pitch events - they rarely increase your investment knowledge, they merely empty your wallet!

Thats cheap if the plumber is bringing in a brand new industrial pot washing sink with new hardware.  

Ask him if there is any cabinet hardware that he might like but can't get for free and spring for them - as long as they are no too expensive.I wouldn't offer any money because they already did it with no expectation.

I have a long brush from a hardware store or Harbor Freight that's intended to clean dryer vents.