A settled patio is more than cosmetic. When the slope reverses and water tracks toward the foundation, you have created an ongoing source of foundation damage. Lifting the patio back to a positive grade is one of the best preventive moves you can make for a Phoenix home.
What we see most
- Patio dropped at the back-door transition — water now collects at the door
- One end of the patio sank lower than the other (usually the irrigation side)
- The slab pitches toward the house instead of away from it
- Cracking running parallel to the foundation — a sign of differential settlement
- Pavers, tile, or stamped concrete cracking from movement underneath
How patio leveling works
- We assess the slope and identify the low areas and voids
- We drill penny-sized (5/8") injection points through the slab
- We inject polyurethane foam — it expands, fills voids, lifts the slab
- Laser-level monitoring restores positive slope away from the foundation
- We patch the holes — covered, stamped, or pavered patios usually look untouched
- Walk on it in 15–30 minutes
Why patios settle in Phoenix
Patios are typically poured separately from the home foundation, often on lightly compacted fill. Add overhead drip irrigation, monsoon runoff that follows the patio edge, and the constant wet/dry cycle of Valley clay — and the soil under the patio is in motion year after year. Eventually a void opens up under the slab and the slab settles into it.
Cost
Most Phoenix patio lifts run $800–$2,500. Pricing depends on size, severity, whether the patio has a cover or hardscape, and how much foam is needed. Replacement of a covered patio runs $5,000+ before any finish or cover work.