How much do they cost?
Expect to pay about the same as you would for natural stone, around $60 to $90 per square foot, including installation.
DIY or hire a pro?
Like natural stone, quartz slabs are very heavy. And though the added resins make them more flexible, they, too, can crack if not properly handled. Work only with certified installers.
Where to buy?
Order through kitchen-design showrooms or from home centers and big-box stores, such as The Home Depot, IKEA, and Lowe's.
How long do they last?
For as long as you have your kitchen. Quartz countertop manufacturers provide warranties ranging from 10 or 15 years to lifetime, depending on the company.