In my eighty years I have had to deal with many types of men in all types of work and I think that without any hesitation, I can put [Everest] at the top.
They were most polite and industrious and got on with the job from their first arrival early in the morning to their leaving in the evening.
I would not hesitate in recommending them to anyone!
With men of this calibre your reputation in this field will most certainly grow.