Advanced applications to shield surfaces from moisture damage
Moisture is one of the leading causes of structural deterioration. AFR’s water repellent and sealant services are designed to protect your building’s surfaces—both new and historic—from the damaging effects of water, without altering their appearance or breathability.
Using premium products like Prosoco’s breathable water repellents, we apply advanced treatments that penetrate deeply into masonry, stone, concrete, and other porous materials. These solutions form a long-lasting barrier against water intrusion while allowing trapped moisture to escape, preventing issues like efflorescence, spalling, and mold growth.
Why property owners trust our sealing services:
Defends against rain, snow, and freeze/thaw cycles
Helps maintain structural integrity and appearance
Reduces maintenance costs over time
Environmentally friendly, vapor-permeable formulations
Preserve your building’s value and beauty with AFR’s expert water repellent and sealing solutions.
Noise Reduction
Energy Savings
Stop Moisture Before It Becomes Mold, Cracks, or Costly Repairs
Water is a building’s worst enemy—and in the Bay Area, with its fog, rain cycles, and coastal air, it’s a constant presence. Over time, water penetrates porous surfaces like brick, concrete, and stucco, leading to spalling, staining, corrosion, and even structural damage.
At AFR Windows, we provide professional water repellent and seal services that defend your building envelope—preserving appearance, preventing moisture intrusion, and prolonging the lifespan of your exterior.
The Problem: Unsealed Surfaces Soak Up Trouble
You may not see the damage until it’s too late. Without proper sealants or water repellents, exterior surfaces absorb moisture—leading to:
Efflorescence and white staining on masonry
Cracking or delamination of stucco and concrete
Interior leaks and mold growth
Degradation of reinforcing steel or anchors
Freeze/thaw damage in colder Bay Area microclimates
Even buildings that were sealed during original construction lose protection over time. If it’s been more than 5–10 years, or your property has undergone cleaning, paint removal, or power washing, your water repellents may be worn or completely ineffective.
The Solution: Proven Water Repellent and Seal Treatments That Last
Our team applies industry-leading water repellent and sealing systems to help Bay Area buildings shed water, resist damage, and meet modern building envelope performance standards.
We tailor the product and process to your surface and needs, including:
Silane/Siloxane penetrating sealers for masonry, brick, and concrete
Elastomeric coatings for stucco and cementitious finishes
Clear breathable sealants that prevent moisture while allowing vapor escape
UV-stable, graffiti-resistant topcoats for high-traffic urban areas
Joint pre-sealing and crack repairs for optimal coverage
All products are applied by trained technicians and designed to withstand rain, sun, fog, and freeze cycles common across the Bay Area’s microclimates.
Who We Serve
We work with:
Commercial building owners protecting façade investments
Property managers and HOAs responsible for long-term building health
Developers preparing for final inspections or turnover
Historic preservation teams looking to preserve aesthetic while preventing decay
Whether you’re maintaining a downtown mid-rise, a coastal apartment complex, or a historic brick building, we’ll select and apply the right protection system for your substrate and environment.
Where Water Repellent & Seal Matters Most
Our services are ideal for:
Brick, CMU, or concrete façades
Stucco and EIFS exteriors
Stone veneer or natural stone surfaces
Precast panels and tilt-up walls
Balcony decks and parapet caps
Pedestrian surfaces, planters, and garage walls
We also seal surfaces after leak repairs, crack injections, and repointing to help ensure long-term success.
The AFR Difference: Not Just Applied—Engineered to Last
Our crews are trained not only in product application, but in:
✅ Building envelope science to spot early warning signs
✅ Surface prep and compatibility testing
✅ Application techniques that ensure saturation and coverage
✅ Moisture management best practices for both new and existing buildings
✅ Manufacturer-backed warranties and product documentation
We don’t just apply coatings—we install durable, water-shedding systems designed to extend the life of your building.
Why Clients Across the Bay Trust AFR Windows
Your exterior tells a story—to your tenants, to inspectors, and to your bottom line. We make sure it stays clean, dry, and high-performing year after year. Our experience with high-rise, mid-rise, and multifamily buildings across San Francisco, Oakland, San Jose, and surrounding areas means we know what it takes to keep your property looking sharp and protected in this unique climate.
We work around occupancy, coordinate with other trades, and document every step—so you get peace of mind and visible results.
Protect Now. Avoid Repairs Later.
Don’t wait for stains or leaks to appear. A proactive water seal treatment can save thousands in restoration costs.
📞 Call AFR Windows today to schedule a surface evaluation
🧱 Get a quote for water repellent and seal services
🛡️ Shield your investment from the elements—with AFR expertise