Being involved in concrete leveling and underpinning for over 28 years, I have come to understand the huge difference between heave and settling. I have felt a ton of pressure to sell underpinning to every customer. Pressure came from a variety of sources: our industry suppliers, who are looking for us to sell their product, our salesmen in the field, who earn a living that is dependent on sales, and the workers in the field who depend on our sales to earn a living, not to mention our own bottom line and a desire to sell enough to break even every month. It is frustrating to walk away from jobs that have serious damage and not sell any products or services to a customer who is pleading for relief. I have done just that for many years. It takes a tremendous amount of expertise, honesty and integrity to be forthright and not take advantage of the customer.