Your clients are your best reference.
Your client has specific needs. Try to describe the initial question or problem as accurate as you can. Make the problem look very radical.
Description about what you’ve done, with a shitload of good photos. Go into detail and write about the problem versus the solution. Get as much testimonials as you can!
'HERE COMES A TESTIMONIAL OF YOUR CLIENT. IF YOUR CLIENT IS HAPPY, ASK HIM/HER IF YOU COULD DISPLAY A QUOTE ON YOUR WEBSITE. THE CLIENT WILL BE FLATTERED TOO!’