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Commercial Waterproofing in Cumming, GA
Most leaks in Cumming commercial buildings come through joints, not through the stucco. We replace failed sealant and expansion joints, correct flashing at windows and roof lines, and apply coatings that keep wind-driven rain out of the wall.
- Sealant replacement programs
- Expansion joint repair
- Flashing & parapet details
- Elastomeric & breathable coatings
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Cumming commercial stucco & EIFS. Property managers, boards, owners & builders.
The joints fail long before the wall
A stucco or EIFS facade is only as tight as the sealant around it. Every window perimeter, storefront frame, expansion joint, light fixture and sign penetration on a Cumming building depends on a bead of sealant bonded to both sides of the joint. In Georgia sun that sealant hardens, shrinks and pulls away from one edge, usually years before the cladding itself shows any wear.
When that happens across a building at the same time, which it does on properties where every joint was installed in the same month, small leaks start showing up on several elevations at once. Tenants report them one at a time, and they get fixed one at a time, with caulk over caulk.
We look at the building as a system instead. We check joint adhesion and depth, inspect flashing at window heads, sills and roof-to-wall lines, and decide whether the right answer is a targeted repair, a full joint replacement program, or an elastomeric or breathable coating over the field of the wall. The written scope explains which and why, elevation by elevation.
Commercial waterproofing work in Cumming
These are the details we check and correct on office, retail, multifamily and hospitality buildings.
Sealant replacement programs
Old sealant is cut out, joints cleaned and primed, and new backer rod and sealant installed, building-wide or elevation by elevation.
Expansion joints
Failed expansion and control joints are rebuilt and sized so the joint can move with the building instead of tearing.
Window & storefront perimeters
Perimeter sealant, sill flashing and head details are corrected so water running down the wall is turned out, not in.
Parapets & roof-to-wall
Parapet caps, coping joints and roof-to-wall flashing are corrected where water enters the top of the wall.
Elastomeric & breathable coatings
Elastomeric coatings to bridge fine cracks, or breathable coatings where the wall needs to dry outward, chosen for the substrate.
Penetrations & attachments
Tenant signage, light fixtures, mechanical lines, railings and balcony attachments are flashed and sealed where they pass through.
Choosing the right waterproofing scope
A coating can’t fix a missing flashing, and new sealant won’t help a parapet whose cap is open. We start with the details where water is actually getting in, and only recommend a coating when the face of the wall needs one.
Coating choice matters too. Elastomeric coatings bridge hairline cracks and shed rain well, but a non-breathable film over a wall that is already wet can trap moisture. Where readings show wet areas, we repair those first.
For sealant, the question is usually full program or targeted repair. If the joints are the same age everywhere, replacing them in one program is usually the better value. If failures are concentrated on one or two elevations, we can phase the work so it fits operating budgets or reserves.
| Scope | Best for | Result |
|---|---|---|
| Targeted sealant repair | Failures on one elevation | Leaks closed |
| Full sealant program | Joints the same age everywhere | Building resealed |
| Flashing correction | Parapet & opening leaks | Water turned out |
| Elastomeric coating | Sound wall, many hairline cracks | Cracks bridged |
| Breathable coating | Dry stucco needing protection | Sheds rain, dries out |
How we waterproof an occupied building
Sealant and coating work depends on weather and cure time, so we plan the sequence and access with you before work starts.
Survey & test
We walk every elevation, check sealant adhesion and condition, take moisture readings at windows and joints, and water test where tenants have reported leaks.
- Sealant condition by elevation
- Moisture readings mapped
- Leak points confirmed
Scope & phasing
You get an itemized scope that separates active leak repairs from preventive work, with phasing options by elevation or by building.
- Itemized by elevation
- Program or targeted options
- Access & scheduling plan
Seal, flash & coat
Failed joints come out and are rebuilt, flashing is corrected, any wet substrate found along the way is replaced, and coatings go on where the wall needs them.
- Joints primed & tooled
- Flashing corrected
- Daily cleanup
Tenants reporting leaks after storms?
That usually points to a joint or flashing detail. A water test can confirm the source before you commit to a full program.
Often paired with waterproofing
Sealant and flashing work often turns up damage that has to be repaired first, or a wall that should be tested before anything is sealed.
Envelope Inspections
Moisture surveys, water testing and written condition reports for owners, boards, lenders and buyers.
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Commercial Stucco Repair
Cracks, impact damage, delamination and water damage on commercial facades, repaired at the source and matched to the building.
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Condominiums & HOAs
Reserve-study repairs, balconies, sealants and full-building recoats for condominium associations.
Learn moreWind-driven rain on open North Georgia sites
Many Cumming commercial buildings sit on cleared, elevated pads with little around them to block weather, which puts more water on the walls.
Retail pads along GA 400 and office and medical buildings on graded hillsides take summer thunderstorms head-on, often on the same one or two elevations every time. Those walls are where we find sealant failing first. We map leaks by elevation so the waterproofing budget goes to the exposures that need it, and the protected sides can wait for a later phase.
Sealant joint programs
Cut out, prepare and replace perimeter and panel joints with properly sized backer rod and sealant.
Expansion joints
Joints between building sections and at floor lines on taller office and multifamily buildings.
Coatings
Elastomeric or breathable coatings chosen for the substrate, the exposure and the condition of the wall.
- Cumming
- GA 400 corridor
- Peachtree Parkway
- Market Place Boulevard
- Downtown Cumming
- Sharon Springs
- Lake Lanier
- Johns Creek
- Milton
- Dawsonville
Waterproofing questions from Cumming
Answers for Cumming property managers planning sealant, flashing or coating work.
Is stucco waterproof on its own?
How often should commercial sealant joints be replaced?
What is the difference between elastomeric and breathable coatings?
Which Cumming buildings need waterproofing first?
Do we need a permit for sealant or coating work in Cumming?
How is waterproofing work priced?
Stop the leaks at the joints
Tell us where water is showing up. We will survey the building and send a written waterproofing scope for your Cumming property.