Short answer: yes. Every concrete patio needs control joints, and when they get cut matters as much as whether they get cut.
Concrete shrinks — that's not a defect
Fresh concrete holds more water than the final slab needs. As it cures, it loses that water and shrinks slightly — every slab, every mix, every contractor. Shrinkage builds tension in the slab, and when the tension exceeds the concrete's strength, it cracks. This is physics, not workmanship.
Control joints are the fix: deliberate weakened lines that tell the crack where to go. The slab cracks under the joint, invisibly, instead of wandering across your patio.
Timing is the part people miss
Joints have to exist before the slab builds enough tension to crack on its own — typically within hours of the pour for saw cuts, depending on weather. A crew that comes back to cut joints 'in a few days' is cutting decoration; the slab already picked its own crack line, and it didn't consult the saw.
We cut on schedule, every pour. It's one of the cheapest, most-skipped details in flatwork.
Making joints part of the design
On a patio, joint layout is also aesthetics. Spaced right and laid out square with the house, the joints read as intentional panels — like flagstone lines — rather than random saw marks. We plan the layout before the pour, not after.
Want to see a joint plan for your patio? That's part of what you get at a free on-site estimate.
Related service
Concrete PatiosA patio that stays flat by the back door instead of settling away from it.