Residential · St. Louis, MO
Stucco water damage rarely starts at the stain you can see, it starts at a failed joint, flashing, or crack that lets water reach the lath and sheathing. Superior Stucco St. Louis finds the entry point, removes compromised material, and rebuilds the wall assembly so it drains and dries correctly.
We start with protection and demolition you can trust, not cosmetic patching. After masking, drop cloths, and dust control, we sound out hollow areas, map cracks, and open the wall to expose the real damage, including rusted metal lath, crumbling scratch coat, and soft OSB or plywood sheathing. Wet insulation is removed, framing is checked, and fasteners and tie-ins are corrected before we rebuild. The base goes back in the right order: code-appropriate weather-resistive barrier, proper flashing integration, galvanized expanded metal lath, then a three-coat stucco system (scratch, brown, finish) or a manufacturer-approved repair to match your existing assembly.
St. Louis swings between heavy rain, freeze-thaw cycles, and humid summers, which means small cracks can pump water into the wall and turn hairline issues into spalls, blistering paint, or efflorescence. We focus on drainage and movement control by restoring weep screed function, re-establishing control joints where needed, and sealing penetrations with compatible sealants instead of brittle caulk. Finish work is blended so repairs disappear, whether you have sand float, lace, dash, smooth, or a cement-lime texture, and we can color-match integrally colored finishes or prep for elastomeric coating when that is the right spec. If the problem is at a window, door, deck ledger, kick-out flashing, or roof-to-wall, we address the interface so water does not return to the same spot.
Customers in St. Louis choose us because we repair the cause of stucco water damage, not just the surface symptoms. We are licensed and insured, serving since 2018, and we write clear scopes that spell out what gets removed, how the WRB and flashing tie in, and what finish system is being applied. You get straightforward communication, clean jobsites, and repairs that respect manufacturer requirements, ASTM practices, and real-world moisture management. When needed, we coordinate with roofers, window installers, or carpenters so the envelope details are corrected in the right sequence.
Before we wrap, we walk the work with you and verify the details that keep water out: proper termination at flashings, sealed penetrations, consistent thickness, and a finish that blends with adjacent walls. You receive a free written estimate up front, then a documented repair plan, materials list, and care recommendations for curing and future maintenance. We also point out risk areas, like missing kick-out flashing or failed sealant joints, so you know what to watch and what to budget for next. The goal is a durable stucco system that sheds water, drains correctly, and looks right from the street.
We finish with a final cleanup and a common-sense maintenance checklist, including which joints should be re-sealed periodically and where sprinklers or grade contact can keep walls wet. If your repair includes repainting, we recommend breathable coatings and proper cure times so trapped moisture does not blister the new finish. When repairs involve larger elevations, we plan safe access with ladders, pump jacks, or scaffolding and keep landscaping protected. You are left with a repaired assembly, matched texture, and confidence that the stucco water damage was solved at the source, not covered up.
Yes. We provide a free written estimate that outlines the scope, materials, and the recommended repair or replacement approach.
Yes. We repair and install traditional cement stucco and EIFS systems, using compatible base coats, mesh, accessories, and finish coats for the existing assembly.
Temperature and moisture matter for curing and adhesion. We schedule work around conditions and use appropriate protection so base coats and finishes cure correctly and avoid washout or freezing.
Frequent causes include missing or incorrect flashings, poor WRB laps, buried weep screeds, inadequate lath fastening, lack of control joints, and sealant failure around penetrations and openings.
Small patches may take 1-2 days plus cure time, while larger remediation or full replacements take longer due to demo, substrate repairs, multiple coats, and drying time between steps.
Stucco water damage is usually an assembly problem, not a paint problem. Water enters through cracks, failed sealant joints, missing kick-out flashing, poorly integrated window flashing, or gaps at roof-to-wall intersections, then saturates the lath, sheathing, and framing behind the stucco. Superior Stucco St. Louis repairs the wall from the substrate out, so moisture can drain and the finish can perform through rain, humidity, and freeze-thaw conditions.
Common signs of stucco water damage include bubbling or peeling paint, efflorescence (white salts), staining below windows, soft spots, cracking that keeps returning, and hollow-sounding areas when tapped. The real risk is hidden: rusted galvanized lath can delaminate the cement base, and persistent moisture can rot wood framing or swell OSB. That is why our process starts with inspection and selective removal so we can confirm what is wet and what is still structurally sound.
After demolition, we restore the wall assembly in the correct sequence: weather-resistive barrier and flashing that lap properly, weep screed and terminations that allow drainage, and lath and fastening patterns suited to the substrate. We then apply a scratch coat and brown coat to re-establish thickness and strength, followed by a finish coat blended to your existing sand float, lace, dash, or smooth appearance. Where appropriate, we also address sealant joints at penetrations and transitions using materials designed for exterior stucco movement and adhesion.
If you are seeing recurring stains or cracks, the fix is rarely another skim coat. A durable stucco water damage repair ties the roofline, windows, doors, and wall penetrations into one moisture-managed system. Request a free written estimate from Superior Stucco St. Louis and get a clear scope, realistic timeline, and a repair that is built to last.
Call now or send a request and we will reach out within one business day to schedule your free, no-obligation estimate in St. Louis. We assess the project, review the details, and give you a written quote before any work starts, so you know exactly what to expect.
Prefer to write? Contact us or head back to the home page.
