[Essay] Please check if the sentence is idiomatic or not

[Brightgreen]

Hi! I need to translate a promo text for a company into English but I am afraid it is not idiomatic enough. Is it possible to say: we prove our competence in actions?
The main idea is to write that the company doesn't boast of being a team of professionals saying how good they are but proves it by doing their job well. Any ideas are welcome! Thanks in advance.

 

[emsr2d2]

Maybe "We prove our competence by our actions". It's not great but it's grammatically correct. You need to know that being "competent" is not a particularly wonderful thing! It's OK but it's not particularly complimentary. It's just OK.

 

[Barb_D]

Agreed. You'll see our excellence in our actions.
Perhaps.

 

[Brightgreen]

Ok, thanks for the ideas!

 

[Raymott]

I'd rather deal with a competent company than one who advertises their excellence with no justification. Since you are writing for the company, you should check with them whether they can provide a service consistent with that claim. But keep in mind I know nothing about advertising in Russia. Here, everybody's 'excellent' in their ads since such claims are not generally testable by consumer-protecting authorities. On the other hand you cannot lie about something specific such as having the "lowest prices" unless you actually do.
I actually like the truth of your suggestion - though it wouldn't work in the west.