Emergency Exterior & Water Intrusion Repairs

Seattle & Eastside Building Envelope Specialists

When water is getting inside your home or building, waiting is not an option. Active leaks, flashing failures, and water intrusion issues can quickly lead to hidden rot, mold growth, and costly structural damage — especially in the Pacific Northwest.

Synapse Construction provides emergency exterior and building envelope repairs throughout Seattle and the Eastside. We specialize in diagnosing the true source of leaks and repairing them correctly, not just patching the visible damage.

Rotting wood framing exposed around a window after siding failure, showing moisture damage hidden behind exterior siding in a Seattle home. — Severe wood rot exposed around a window opening after siding removal. In Seattle’s wet climate, moisture intrusion often occurs behind siding and trim long before damage is visible on the surface.

What Qualifies as an Exterior Emergency?

Many of the calls we receive start with a small but alarming sign:

Water leaking inside walls or ceilings
Active leaks during heavy rain or wind
Failed flashing at roof-to-wall or gutter transitions
Water staining around windows or doors
Sudden siding failure or exterior rot exposure
Moisture discovered during a pre-sale, HOA, or GC inspection

If water is entering the building envelope, it should be investigated as soon as possible.

Our Emergency Repair Approach

Emergency repairs require a calm, methodical approach — not guesswork.

At Synapse Construction, we focus on building envelope investigation first, followed by targeted repairs designed to stop water intrusion and prevent recurrence.

Our process typically includes:

On-site water intrusion assessment
Selective removal of exterior materials (only where needed)
Identification of flashing, waterproofing, or installation failures
Code-compliant repair using proper membranes and flashing details
Restoration of siding and exterior finishes to match existing materials

This approach allows us to resolve urgent issues while minimizing unnecessary disruption or cost.

Proper waterproofing installation behind siding helps manage moisture and extend the lifespan of exterior materials in rainy coastal environments. — Installation of waterproofing components behind new siding. In Seattle’s wet climate, proper flashing and weather-resistive barriers are essential to protect wall assemblies from moisture intrusion.

Emergency Repair Services

Below are the most common emergency services we provide. Each page goes into detail about symptoms, causes, and repair methods.

Window Leak Repair

Leaks around windows are often caused by missing or failed flashing behind the siding — not the window itself.

Common signs: interior staining, drafts, soft drywall, exterior siding deterioration.

[Learn more about window leak repair →]

Emergency Flashing Repair

Failed flashing at roof-to-wall, chimney, or gutter transitions can dump large volumes of water directly into wall assemblies.

Common signs: sudden interior leaks, concentrated damage near rooflines, recurring problems during storms.

[Learn more about emergency flashing repair →]

Water Intrusion Investigation & Inspection

When the source of a leak is unclear, a professional investigation is the safest first step.

Common signs: recurring moisture, hidden damage, failed inspections, or unexplained interior leaks.

[Learn more about water intrusion inspection →]

Stucco Crack & Failure Repair

Cracks in stucco can allow water to penetrate behind the cladding, leading to concealed damage.

Common signs: cracking, bubbling paint, staining, or soft areas around windows and penetrations.

[Learn more about stucco crack repair →]

Deck Waterproofing & Membrane Repair

Failed deck membranes can allow water to migrate into living spaces below.

Common signs: leaks under decks, damaged ceilings, or pooling water on deck surfaces.

[Learn more about deck waterproofing repair →]

HOA & Multi-Family Building Envelope Emergencies

Water intrusion in multi-unit buildings requires fast coordination and experienced envelope repair.

Common issues: shared-wall leaks, failed transitions, inspection-triggered repairs.

[Learn more about HOA building envelope repairs →]

Who We Help

Our emergency repair services are commonly requested by:

Homeowners experiencing active leaks
General contractors responding to unexpected failures
HOAs and property managers
Real estate professionals during inspections

We understand the urgency, communication needs, and documentation required for each situation.

Service Areas

We provide emergency exterior and water intrusion repairs throughout:

Seattle Neighborhoods • Eastside Communities • Greater Puget Sound Area

Schedule an Emergency Assessment

If you’re seeing signs of water intrusion, the best next step is a professional assessment.

Contact Synapse Construction to schedule an emergency exterior evaluation and repair plan.

[Schedule an Assessment]

Get Started

“I was given the name of Synapse Construction, with a very positive recommendation, from our neighbor’s contractor. Each individual was a pleasure to talk to and work with and the work done was exceptional. I highly recommend Synapse Construction and will definitely hire them, as needed, in the future.”
- Sue M.

“Synapse were the only folks we found able to provide the level of quality and specialized expertise necessary for a fairly complicated project. The Synapse team completed the job in a manner that was both professional and efficient. From start to finish, I was impressed with their level of organization. I would strongly recommend Synapse Construction for any exterior or siding project.”
- Samuel R.

“I just wanted to express my gratitude for the excellent work Synapse did for my home. The finished product exceeded my expectations. The constant professionalism, attention to detail, overall thoroughness, and willingness to accommodate unusual issues, on the fly, was a sigh of relief. Many companies would have ignored what Synapse proudly and willfully faced head on, and accomplished. I look forward to working with them on the next project! ”
- Ben D.

“We have received exceptional service and results from Synapse, and have actually used them multiple times. Synapse consistently shows great value and high quality work. There is real project management and continual communication, so we felt clear at every step what was happening. Everything is well documented and they hire quality people. ”
- Dan M.

“They are knowledgeable, dependable, honest, and effectively communicated throughout the project. They helped guide the project through appropriate detailing and technical challenges while finely crafting a crisp and refined building enclosure. Without hesitation I have the highest recommendation for Synapse Construction.”
- D. Rusler

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