Often suitable for
- Window and wall leaks
- Commercial façades
- Roof-to-wall and expansion-joint transitions
Envelope
Building Envelope Waterproofing
Coordinated control at walls, windows, joints, penetrations, and roof-to-wall transitions.
Water can travel far from its entry point. WHI uses visual investigation, selective testing, and trade coordination to define repairs at sealants, flashings, openings, cladding interfaces, and transitions rather than simply covering interior symptoms.
Not a shortcut for
- Unverified blanket sealing that can trap moisture
- Structural façade hazards without specialist review
Methods considered
- Joint and sealant replacement
- Opening and transition flashing
- Compatible fluid-applied barriers
- Targeted testing and phased repairs
Warning signs
- Stains after wind-driven rain
- Failed or missing sealant
- Corrosion or displaced flashing
- Recurring leaks near openings
Choose your path
Building Envelope Waterproofing for homes and businesses
Start with the building and operating needs. Inspection findings—not a generic package—determine whether repair, restoration, or replacement belongs in the written scope.
Residential journey
- Window and wall leak investigation
- Addition and roof transition repairs
- Storm-driven rain entry
Commercial journey
- Façade maintenance programs
- Occupied-building leak investigation
- Phased joint and transition work
Suitability checks
- Materials must be compatible and allow intended drainage and drying.
- Water testing should follow an agreed sequence and safety plan.
- Hazardous materials or unstable façades require specialist coordination.
Transparent planning
What drives building envelope waterproofing cost?
These are scope drivers, not an online bid. Measurements, condition, code, access, selections, and hidden damage must be verified before WHI can provide a project-specific written estimate.
Cost drivers
- Access equipment and occupied-space controls
- Testing and exploratory openings
- Joint quantity, geometry, and substrate preparation
- Cladding removal, flashing, and finish restoration
Typical project sequence
Duration is confirmed after scope, lead times, permits, weather, access, cure requirements, and hidden-condition allowances are known.
- Document leak patterns and assemblies
- Test or open targeted areas
- Develop mockup and repair sequence
- Perform phased work, testing, and closeout
Scheduling
Scheduling depends on investigation findings, drying or substrate moisture, weather and cure windows, access, permits, and coordination with drainage, concrete, roofing, or interior trades. WHI separates emergency source control from permanent waterproofing.
Maintenance
- Inspect joints, openings, flashings, and transitions on a planned cycle.
- Record leak conditions and completed repairs by elevation.
- Avoid unreviewed sealants that bridge drainage paths.
Prepare and protect
Emergency steps and estimate checklist
If water is entering now
- Keep people away from standing water near electrical equipment, unstable finishes, or contaminated water.
- If safe, stop the water source and move contents; do not open walls or enter flooded confined spaces.
- Photograph conditions, note weather and timing, and call emergency services for life-safety hazards.
- Request source control and temporary protection before cosmetic repairs or reconstruction.
Compare written scopes
- Identify the water source—not only the visible stain
- Record substrate condition and moisture findings
- Define preparation, transitions, drainage, terminations, and protection
- Confirm cure time, access restrictions, testing, and closeout
- Read warranty coverage, exclusions, maintenance, and installer requirements
Warranty questions
Ask who issues each warranty, what it covers, when it starts, how coverage statements are made, whether it transfers, and which maintenance, registration, or inspection conditions apply.
Get a condition-based recommendation
Tell WHI what you see and how the building is used. We will help set the next step, document the scope, and explain options without pretending an uninspected project has a fixed price.