Water & Moisture Damage Repair in Chandler, AZ

Stucco Was Never Meant to Be Waterproof

This surprises people, and it is the key to the whole repair. Stucco is a cladding over a drainage plane: building paper and metal lath behind it, and a weep screed at the bottom to let water out. The system assumes water gets in and is designed to drain it. Failure happens when it cannot — when flashing is wrong, a joint has failed, or the weep screed has been buried by landscaping. Then the paper saturates, the lath rusts, and the bond fails from behind while the surface still looks fine.

How to Tell Before It Shows

Tap the wall. Sound stucco gives a hard, high tap; a delaminated area sounds hollow and drummy, and once you have heard both on the same wall the difference is unmistakable. The other signals are a soft or spongy patch, bubbling finish, dark staining below a window or roofline, chalky white efflorescence blooming out of the surface, or paint that peels in the same spot no matter how many times it is redone. Every one of those is water moving through the wall and coming back out.

The Damage Is Always Bigger Than the Stain

Water enters at one point, runs down the paper behind the stucco, and saturates a path considerably wider and lower than wherever it eventually appears. Rusting lath then spreads the failure outward on its own. This is why we quote water damage after opening the wall rather than from the driveway — quoting it unseen means either padding the number or coming back to ask for more. We open back to genuinely sound material, replace paper and lath, and rebuild base and finish.

Fixing the Wall Without Fixing the Water

A perfect patch over an unfixed leak is a repair with an expiry date, and it is the most common thing we are called back to correct. The entry point is rarely the field of the stucco — it is nearly always a transition: window and door flashing, a roof-to-wall intersection, a penetration for a hose bib or light, the weep screed, or the joint where stucco meets another material. In the East Valley there is one more that people miss entirely: irrigation. A sprinkler head hitting a wall twice a day does what monsoon rain does, except year round. Any repair we do includes finding the actual path, and where the damage traces to a crack we deal with that too.

How long does it take? A contained area is typically one to two days plus cure time. Damage that has tracked along a wall or down from a roofline is quoted after the wall is opened, because the extent is genuinely not knowable from outside.

Frequently Asked Questions