Yeah it's a challenge usually - but if you can cover the costs then labour can be under-charged. Depends on who you're dealing with really. 

At the end of the day true business is about relationships - 

Good work on those stairs too.  

 Thank you sir.   They step.. 

 you need to put a fat man on those stairs 

 Haha they’re overbuilt I promise… another thing you do for friends.   “Industry standard” def doesn’t cut it