Don't Let Portland Rain
Find the Weak Spot
In Your Chimney.

Breathable sealants that protect masonry

Chimney Waterproofing
in Portland, OR

Oregon's relentless rain and freeze-thaw cycles break down masonry over time. Prime Chimney applies professional-grade, breathable waterproofing sealants that keep water out while letting trapped moisture escape — preventing spalling, cracking, and efflorescence.

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503-966-2945

Benefits of Chimney Waterproofing

  • Prevents water penetration and freeze-thaw damage

  • Stops spalling and efflorescence

  • Breathable — lets masonry release moisture

  • Extends the life of your chimney

  • Invisible, non-glossy finish

What's Included

  • Surface cleaning & prep
  • Breathable silane-siloxane sealant
  • Full masonry coverage
  • Crown & flashing seal check
  • Multiple coats for coverage
  • 10-year protection
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Chimney Waterproofing Across the Portland Metro

Serving 18+ Portland Area Cities

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Chimney Waterproofing FAQs

Frequently Asked Questions

How often should I waterproof my chimney?

Quality waterproofing lasts 5–10 years. We recommend reapplication before signs of wear appear, especially in Oregon's wet climate.

Is waterproofing the same as sealing the crown?

No. Waterproofing protects the exterior masonry. Crown sealing addresses the concrete top. Both are important and often done together.

Will waterproofing change the look of my chimney?

No. Our breathable sealants penetrate the masonry and leave a natural, non-glossy finish that doesn't change the appearance.

Other Chimney Services

Chimney SweepChimney InspectionChimney RepairChimney RebuildChimney ReliningChimney Cap InstallationChimney Crown RepairMasonry RepairGas Fireplace RepairFireplace InstallationCreosote Removal

Book Your Chimney Waterproofing Today

Open 24/7, 365 days a year. Free estimates, same-week scheduling, and honest pricing — that's the Prime Chimney promise.

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618 SW Grant St, Portland, OR 97201  •  Open 24/7 — 365 Days a Year