Dear Mr. XYZ,
This can be to inform you that we have carefully reviewed your estimate about the parking lot refurbishing. We are intending to contract with you with this work.
We can’t let this contract instantly, as final approval of expenditures in this nature must come on the head office in (Place name).
We be ready to receive approval or disapproval within the next 30 days. At such time, we will make contact with you with instructions appropriately.
If any assistance for the time being please feel free to contact this office. Thank you,