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Evaporative coolers (swamp coolers) are common in older Phoenix homes and are an economical choice for Valley cooling — but they sit on the roof and they use water, which means potential for leaks and drywall damage below. Cooler pad overflows, float valve failures, distribution line breaks, and failed roof penetration seals are the most common culprits. We repair the resulting drywall damage — ceiling stains, saturated sections, and soft spots — once the source of the leak is addressed.
Before we repair the drywall, the source of the leak must be resolved — whether that's a new float valve, a repaired distribution line, or re-sealing the roof penetration. Once the leak is fixed and the area has dried (typically 48–72 hours minimum), we can replace the damaged drywall, retexture, and prime.
Signs include brown water stains on the ceiling below the cooler, paint bubbling or peeling on the ceiling, a musty smell when the cooler runs, or soft/spongy drywall when you press on the ceiling. If you see any of these, turn off the cooler water supply and call a cooler tech to diagnose the leak before it gets worse.
Yes — always fix the source first. Repairing drywall over an active or intermittent leak is pointless. Once the leak is resolved and the area has had time to dry completely (48–72 hours minimum in dry Phoenix air), we come in and repair the drywall.
Small ceiling stain repairs run $200–$350. Larger repairs involving cutting out saturated sections and replacing drywall are quoted by square footage. Text us a photo at (480) 277-6884.
Possibly — Phoenix's dry climate inhibits mold growth somewhat, but evaporative coolers add humidity and a chronic slow leak can create conditions for mold in ceiling cavities. If you see black or green discoloration or smell something musty, have a mold assessment done before we repair. We replace mold-damaged drywall after remediation is complete.
Call or text us for a fast, free estimate. Same-day service available throughout Phoenix.
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