Fast, Reliable Chimney Repair Across Kenmore
Chimney repair in Kenmore typically runs $350–$2,800 depending on scope, and most standard repairs are completed within a single day. Our Chimney Repair team covers the full 98028 ZIP and surrounding Kenmore neighborhoods with same-week scheduling, because we’ve learned that chimney damage here doesn’t wait—moisture keeps working even when you don’t.

We’ve been climbing Kenmore roofs for 17 years, from the postwar ranches along NE 175th St to the split-levels near Saint Edward State Park. James Wilson, our owner and lead technician, still carries out the initial inspection on most jobs. When you call (866) 541-8697, you’re getting hands-on expertise at your door—not a subcontractor with a clipboard. Kenmore’s lake-proximity location means your chimney faces conditions that inland contractors simply don’t encounter regularly. We do.
Why Horizon Chimney Sweep Washington Is Kenmore’s Preferred Chimney Repair Company
Our reputation in Kenmore is built on showing up and knowing what we’re looking at. With 1,006 verified reviews averaging 4.8 stars, we’ve earned repeated trust from homeowners who’ve learned the hard way that not every sweep understands this city’s specific challenges. Many of those reviews come from Kenmore customers who called us after a generalist missed the real problem.
James Wilson serves as lead technician—not an absentee owner. When we arrive at your Kenmore home, he’s the one assessing your crown fractures, your liner condition, your mortar integrity. That matters in a city where chimneys degrade measurably faster than in Bothell or Woodinville due to the persistent humidity off Lake Washington.
We typically schedule Kenmore inspections within 3–5 business days, and emergency repairs for active leaks or structural concerns faster. We know the parking constraints near the Burke-Gilman Trail, the narrow driveways in the Inglewood-Finn Hill area, and the mature tree cover that keeps north-facing stacks shaded and damp. That local knowledge saves time and prevents callbacks.
Our Chimney Repair Services in Kenmore
Mortar Repointing
Kenmore’s 37 inches of annual rainfall and months of overcast, saturated weather grind away at mortar joints between bricks. We’ve repointed chimneys throughout the 98028 ZIP where the pointing had turned to powder—especially on homes near the lakefront where fog and minimal wind scour prevent masonry from ever fully drying. Our repointing matches existing mortar composition and compressive strength, using techniques appropriate for the Pacific Northwest’s wet-freeze cycles rather than generic mixes that crack within two seasons.
Spalling Brick Repair
Spalling—where brick faces flake and crumble from freeze-thaw pressure—is epidemic on Kenmore’s north-facing chimney stacks. The moss and lichen colonies that colonize these surfaces act like sponges, holding moisture against masonry through winter freezes. Near the Burke-Gilman Trail, we repaired a 1950s ranch chimney on NE 175th St where the crown looked solid from the ground but was riddled with subsurface freeze-thaw fractures. We installed a new Copperfield cap and waterproofed the masonry to stop moisture from penetrating. For spalled bricks, we remove damaged units, assess the wall cavity for hidden water intrusion, and install matching replacements with proper drainage planes.
Chimney Waterproofing
Waterproofing isn’t optional in Kenmore—it’s structural defense. The lake’s proximity suppresses even the brief dry spells that let inland chimneys recover. We apply vapor-permeable waterproofing agents that allow masonry to breathe while blocking liquid water, critical for the clay-tile flue liners found in so many 1950s–1970s Kenmore homes. These liners expand and contract with firing cycles; trapping moisture inside the masonry with the wrong sealant causes more damage than it prevents. We use products formulated for saturated climates, applied after thorough cleaning and any necessary repointing.
Flashing Repair
Kenmore’s older ranch and split-level homes often feature original step flashing that’s corroded or separated from the chimney shoulder after decades of thermal movement. Lake-effect wind patterns here drive rain sideways into gaps that inland homes don’t face. We fabricate and install custom flashing with proper counterflashing integration, sealed with materials rated for continuous damp conditions. On homes with composite or cedar shake roofs common in Finn Hill neighborhoods, we match our flashing profile to the roofing material to prevent future separation.
What happens when you call
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A real person answersNo phone trees — you reach a local pro.
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You get an upfront price rangeHonest numbers before anyone is dispatched.
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A background-checked tech heads outLicensed & insured, dispatched right away.
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You approve before work beginsNothing starts until you say go.
Trusted Brands We Service in Kenmore
We install and repair using Gelco, Olympia Chimney, and Famco components—brands we’ve specified for years because they hold up in Kenmore’s punishing moisture cycle. Gelco caps with proper drip edges prevent the crown pooling we see so often on lake-proximity homes. Olympia Chimney’s stainless steel liners replace the cracked clay-tile flues that are failing throughout Kenmore’s postwar housing stock. We keep common sizes and fittings in rotation, so Kenmore customers aren’t waiting weeks for special orders while water keeps entering their chimney system.

Common Chimney Repair Problems We See in Kenmore Homes
- Cracked clay-tile flue liners from decades of thermal cycling. These hairline cracks and tile displacements are invisible from the firebox but catch creosote and allow combustion gases to breach the masonry. We’ve found this in nearly every 1960s-era Kenmore ranch we’ve inspected—it’s that common, and that dangerous.
- Crowns that appear intact from the ground but are fractured internally. Lake fog and shade from mature Douglas firs keep masonry perpetually damp on lower lots near the waterfront and along the Burke-Gilman Trail. The freeze-thaw fractures don’t show until you’re on the roof with a probe.
- Moss and lichen colonies on north-facing stacks. These biological growths hold moisture against brick year-round, accelerating spalling and pointing failure. Kenmore’s suppressed summer drying means this growth never fully dies back.
- Failed mortar joints at the roofline and shoulder. The combination of saturated winters and original lime-based mortar in pre-1980 homes creates the perfect conditions for joint erosion. We’ve repointed shoulders on Kenmore chimneys where the mortar had washed out to a depth of two inches.
Pricing for Chimney Repair in Kenmore, WA
Here’s what chimney repair costs in Kenmore’s market:
| Service | Typical Range |
|---|---|
| Mortar repointing (partial) | $350–$850 |
| Mortar repointing (full chimney) | $1,200–$2,400 |
| Spalling brick repair (localized) | $450–$950 |
| Chimney waterproofing | $400–$800 |
| Flashing repair/replacement | $550–$1,400 |
| Crown repair or rebuild | $650–$1,800 |
| Full chimney rebuild (partial) | $2,200–$4,500 |
Costs in Kenmore run slightly higher than inland Bothell estimates for equivalent work because lake-proximity moisture damage is often more extensive than it appears—subsurface deterioration requires more extensive remediation. Crown work especially: what looks like a simple cap replacement often reveals fractured concrete underneath. We provide upfront, itemized estimates before any work begins. Call (866) 541-8697 for a free inspection and exact quote.
We Also Serve Cities Near Kenmore
We regularly repair chimneys in Lake Forest Park, Bothell, Bothell East, and Bothell West—though Kenmore’s lake-humid conditions remain the most aggressive on masonry in our service area. If you’re in one of these neighboring communities, the same technician expertise and scheduling apply.
Serving Kenmore, WA — Our Local Coverage Area
We’re based in the Kenmore area and know this community well. Use the map below to see our service coverage — if you’re nearby, we can almost certainly help.
FAQs — Chimney Repair in Kenmore
Annually, without exception— and in Kenmore, we’d push for a mid-winter check if you’ve had previous moisture issues. The persistent humidity off Lake Washington means damage progresses faster than the NFPA’s general guidance accounts for. Call (866) 541-8697 to schedule; estimates are free.
Probably, yes. Original clay-tile liners in Kenmore’s postwar housing stock have endured decades of thermal cycling in wet conditions, and we find hairline cracks or tile displacement in the majority we inspect. These defects catch creosote and can leak combustion gases into your home. A camera inspection reveals what the firebox hides. Call (866) 541-8697 to book one.
Kenmore’s lake-proximity suppresses the low-humidity summers that kill moss inland. North-facing stacks shaded by mature Douglas firs—common throughout 98028—never dry out enough to limit biological growth. That moss holds moisture against your masonry year-round, accelerating spalling and pointing failure. Waterproofing after proper cleaning breaks this cycle.
Yes, and in Kenmore, we do this regularly. Lake fog and shade from mature trees keep crowns perpetually damp, and freeze-thaw fracturing often riddles the concrete beneath a surface that looks intact. We probe and sound the crown during inspection; subsurface damage requires rebuild, not just sealant. Call (866) 541-8697 for an up-close assessment.
We remove damaged bricks, assess the wall cavity for hidden moisture intrusion, install matching replacements, and address the root cause—usually failed pointing, inadequate waterproofing, or a compromised crown. In Kenmore, we also evaluate whether north-facing moss growth is contributing; treating that prevents recurrence. Call (866) 541-8697 for a free estimate.
Ready to protect your Kenmore home’s chimney? Call Horizon Chimney Sweep Washington at (866) 541-8697 for your free inspection and upfront estimate. James Wilson will assess your chimney personally.
Written by James Wilson, Owner at Horizon Chimney Sweep Washington, serving Kenmore and the greater Seattle area since 2007.