Almost certainly not…
A Wi-Fi network Engineer, Consultant or Installer has not designed your RF network unless there is a properly-written Wi-Fi RF Network Design Specification.
What RF network properties does it specify?
What about Wi-Fi network verification after installation? What is your standard for that?
What Capacity Planning was done?
How many more access points did you buy than you needed?
Each access point costs between £500 and £900 cabled and installed – CAPEX.