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Exterior Water Damage

Exterior Water Damage & Water Intrusion

Water always finds the weakest point – whether it’s flashing, siding, masonry, or the roofline and works its way in until you see stains, rot, or mold inside. At Chimneyz, we locate exactly where water enters your property from the outside and seal the building envelope for good, instead of just patching the symptoms.

Why Water Intrusion Is Deceptive

The Leak Is Rarely Where the Stain Is

Water can enter at a failed chimney flashing or a gap in the siding and travel several feet before it shows up on a ceiling or wall. That is why so many ‘repairs’ don’t work: the visible damage gets patched while the real entry point keeps leaking. We diagnose the actual source across your entire exterior system.

In the Pacific Northwest, that slow, hidden path is exactly what makes water intrusion so costly. Our wet season keeps exposed surfaces damp for months, so a small gap that would dry out in a drier climate stays wet long enough to rot framing, soak insulation, and feed mold inside the wall. The longer it goes unfound, the further the damage spreads from the original leak.

It is also why chasing the stain rarely solves anything. Repainting a ceiling or re-caulking the spot where water appears treats the symptom, not the source, and the leak simply returns with the next heavy rain. We start at the outside of the building and work inward, testing the roofline, flashing, chimney, and siding until we find the true point of entry and confirm it is the one causing the damage inside.

How We Work

Our Water Intrusion Process

We treat your home’s exterior as one connected system — roof, flashing, chimney, siding, and walls — so we can trace water to its source and stop it there.

Full system inspection

We inspect the full exterior envelope — roofline, flashing, chimney, siding, and penetrations — and trace the water back to where it's actually getting in, not just where it's showing up.

01

Define the Scope

We lay out exactly what's failing and what it will take to seal it — flashing, siding, masonry waterproofing, or a combination — so you're fixing the cause, not chasing stains.

02

Execute the Repair

Our crews repair the failed systems and seal the envelope: correct flashing, sound siding, waterproofed masonry, and proper transitions between each. One team owns the whole fix, so nothing falls between trades.

03

Verify & Document

We verify the repair holds — including water testing where appropriate — and document the source and the fix so you have a clear record for your files or insurance.

04

Our Projects

Real WORK. REAL Results.

Standing Seam Metal Roof Replacement & Structural Integration in Seattle, WA

Seattle, WA

Structural Chimney Rebuild & Masonry Restoration in Sammamish, WA

Sammamish, WA

Freestanding Gas Fireplace Installation in Mercer Island, WA

Mercer Island, WA

Why Chimneyz

Why One Contractor for the Whole Envelope

Water intrusion is where roofers, masons, and siding crews usually point fingers at each other. Because Chimneyz handles chimney, roofing, masonry, and siding under one roof, we follow the water across every system and take full responsibility for stopping it — no gaps, no blame-shifting.

CSIA Certified

Chimney Safety Institute of America - nationally recognized inspection and repair certification.

GAF Certified Contractor

Factory-certified roofing installer with access to enhanced warranty coverage and proven materials.

BBB Accredited

Better Business Bureau accreditation with a commitment to ethical practices and customer satisfaction.

NCSG Member

National Chimney Sweep Guild member - ongoing education, peer review, and industry best practices.

READY TO SOLVE THE FULL PROBLEM?

Get a Clear Inspection and the Right Repair Plan.

From chimney leaks and failing masonry to roofline issues and interior damage, Chimneyz helps homeowners identify the real source of the problem and fix it with one coordinated solution.

CLIENT REVIEWS

Trusted by Homeowners the Pacific Northwest.

See how Chimneyz solves complex chimney, roofline, masonry, and restoration issues with clear scopes and high-quality execution.

FAQ

Exterior Water Damage FAQ

Stopping water intrusion early protects your structure, air quality, and home value. Here are the answers homeowners ask us most.

Where is my water actually coming in?

Often not where you see the stain. Common entry points are failed chimney flashing, worn roof flashing, gaps in siding, and unsealed penetrations. We trace it to the real source before repairing.

There's a stain on my ceiling but my roof looks fine — how?

Water frequently enters at the chimney or a flashing detail and runs along framing before dropping onto the ceiling. A roof that looks fine can still have a failed transition letting water in.

Can you both find and fix the leak?

Yes. We diagnose the entry point and repair every system involved — flashing, siding, and masonry — so you don’t have to coordinate multiple contractors who each fix only their piece.

Will this help with mold or rot?

Stopping the water is the first and most important step. We address the intrusion and the damaged exterior materials; for interior mold remediation we’ll advise when a specialist should be involved.

Do you document the damage for insurance?

Yes. When water damage is storm-related or claim-worthy, we document the source and scope so you have clear records to support an insurance claim.