Level 1 sweep and inspection to the NFPA 211 annual standard - flue, crown, cap, and flashing checked and photographed
Chimney sweep logs do not sweep chimneys. They loosen some creosote - which then falls where a brush and vacuum still have to collect it.
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Before
AfterDuraFlex Chimney Cap & Crown in Kirkland: What to Know First
We provide independent DuraFlex chimney cap and crown service in Kirkland, typically scheduling within 3-5 business days and completing most cap replacements and crown repairs in a single visit. Every job starts with a written price before any work begins - no exceptions, no surprises. If you own a DuraFlex chimney system in Kirkland, including the common DuraFlex SW and DuraFlex Pro lines found in homes built from 2015 onward, this page covers how caps and crowns fail, what repairs actually cost, and what documentation you’ll receive. Call (425) 642-3485 for a free estimate.
How DuraFlex Products Fail - and How We Fix Them
- DuraFlex SW stainless caps: weld-seam corrosion at the skirt-to-screen joint. The SW series uses a spot-welded skirt connection that holds up well inland but degrades faster in Kirkland’s marine air, especially within a mile of Lake Washington. We see this first as rust staining down the flue tile, not as an obvious hole. Our fix: remove the cap, assess the flue wall beneath, and install a replacement with a continuous-seam skirt or upgrade to a Gelco multi-flue cap if the flue configuration allows.
- DuraFlex Pro galvanized caps: accelerated base-rust where crown wash has cracked. The Pro line’s galvanized coating thins at the mounting flange, and once Kirkland’s winter rains seep through a cracked crown, the flange rusts through in 18-36 months. We replace the cap and repair the crown wash with a breathable polymer-modified cement - not a superficial seal that traps moisture underneath.
- DuraFlex flexible liner top collars: gap opening between collar and cap base plate. On relined chimneys with DuraFlex flexible liners, the top collar can settle or compress, creating a 1/4-inch to 1/2-inch gap that admits water and vermin. We reset the collar, verify the liner termination height per the installation manual, and install a cap with an extended skirt to cover the joint.
- DuraFlex factory-built chase covers: pooling at the low edge on shallow-pitch roofs. Kirkland’s 6/12 and 7/12 roof pitches common in the Finn Hill and Juanita areas don’t drain chase covers as aggressively as steeper pitches. The DuraFlex chase cover seams fatigue at the low edge. We fabricate a replacement from heavier-gauge stainless with a formed drip edge, or convert to a masonry crown with proper slope if the chase framing permits.
- DuraFlex cap mesh: creosote bridging on wood-burning installations. The factory 5/8-inch mesh on DuraFlex caps is correct for spark arresting, but in Kirkland’s older homes near Juanita Beach where homeowners burn Douglas fir with higher pitch content, the mesh can bridge with creosote in a single season. We clean the mesh during sweep visits and upgrade to a 3/4-inch mesh cap only where code allows and the appliance listing permits - never as a default, because the wrong mesh is a liability.
Our DuraFlex Chimney Cap & Crown Process
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Camera-scan inspection first. We run a chimney camera before touching the cap or crown. Clause 4 of the Haven Standard requires a documented photo record on every job, and with DuraFlex systems we need to see the liner top, smoke chamber, and first flue joint before we know whether the cap is the problem or the symptom.
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Written scope and price delivered on site. Corrine Halstead started this practice in 2009: a line-item written price with parts specified as OEM DuraFlex, quality aftermarket through our Haven buying network, or cross-compatible from HeatShield or Gelco. You sign before we start.
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Parts decision with trade-offs explained. OEM DuraFlex caps carry the original warranty terms but ship in 5-7 days. Our aftermarket equivalents from Olympia Chimney or Famco, sourced through Haven’s buying network, match the specs and typically install next-day. We explain the difference and let you choose; we don’t choose for you.
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Repair or replacement with moisture verification. For crown work, we remove all loose material, apply a bonding agent, and lay polymer-modified crown wash with a minimum 3/8-inch per foot slope. We test with a moisture meter before and after to confirm the substrate is dry enough to accept material - a step skipped by crews working on commission.
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Post-work camera verification and photo record. We camera the flue again after cap or crown work to confirm nothing dropped during repair, the liner termination is correct, and the draft pulls as designed. You receive printed findings, photos, and a written warranty before we leave.
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365-Day Done Right Promise activated. If the cap leaks, the crown cracks, or anything isn’t right, we make it right. The promise is stamped on every job, not offered as an afterthought.
Before
AfterWhat DuraFlex Chimney Cap & Crown Costs in Kirkland
| Service | Typical Range | What Moves the Price |
|---|---|---|
| DuraFlex cap replacement (standard single-flue) | $280-$450 | Flue size, stainless vs. galvanized, access height |
| DuraFlex cap replacement (multi-flue or custom) | $420-$680 | Flue spacing, mesh size, wind-rating requirements |
| Crown repair with polymer-modified wash | $380-$620 | Crown size, degree of spalling, need for bonding agent |
| Crown rebuild (form and pour) | $890-$1,400 | Chimney width, reinforcement needs, scaffolding |
| DuraFlex liner collar reset with new cap | $340-$520 | Liner condition, accessibility, cap style |
These are Kirkland-specific ranges based on our 2024-2025 jobs in Finn Hill, Juanita, and the Rose Hill area. Every estimate is free, written, and itemized. Call (425) 642-3485 for an exact quote.
Why Kirkland Homeowners Call Level Two Chimney Kirkland for DuraFlex Work
We’ve inspected and cleaned more than 38,000 chimneys since 2009, and a growing share of recent work in Kirkland involves DuraFlex systems installed during the 2015-2022 building boom. Corrine Halstead and our technicians know the difference between a DuraFlex SW and Pro termination, and we stock common DuraFlex-compatible caps through our Haven buying network to avoid the OEM backorder problem that can leave a flue open to rain for two weeks.
When a DuraFlex part isn’t the right solution, we pivot to HeatShield for crown resurfacing or Gelco for cap upgrades - no single-brand loyalty that limits your options. Every tech is background-checked, uniformed, and licensed; you get a text when they’re en route. The camera doesn’t lie, and neither does the invoice.
FAQs
No - as an independent DuraFlex service provider, we are not affiliated with or authorized by DuraFlex, but manufacturer warranties on materials are not voided by who performs the installation. Warranty coverage depends on whether the product was installed per the manufacturer’s instructions and whether the failure is a defect in materials. We document our work with photos and written scope so you have evidence if a warranty claim arises. Call (425) 642-3485 for a free estimate.
Most DuraFlex cap replacements in Kirkland are completed in 60-90 minutes on site, assuming the flue is accessible and no additional crown repair is needed. Crown repairs add 2-3 hours. We schedule a half-day window and call if we’re running early or late. Call (425) 642-3485 to book.
Yes, if the crown has surface spalling or minor cracking but the structural slab is sound. We use a polymer-modified resurfacing compound that bonds to the existing concrete and flexes with thermal cycling. If the crown has separated from the flue tile, dropped more than 1/4 inch, or shows rebar corrosion, replacement is the honest recommendation - and we’ll show you the camera footage that supports it. Call (425) 642-3485 for an inspection.
We stock common DuraFlex-compatible caps, collars, and termination components through our Haven buying network. OEM DuraFlex parts ship in 5-7 business days. For urgent situations - an open flue during Kirkland’s rainy season - we can install a quality aftermarket equivalent that meets the same specs and swap for OEM later if you prefer. Call (425) 642-3485 to check current inventory.
Look for rust streaks on the chimney face, water in the firebox after rain, or mesh that appears clogged but won’t clean clear. The definitive check is a camera inspection: we look for moisture at the flue top, liner collar gaps, and crown wash integrity. We offer a free second opinion on any competitor’s written estimate if you’re unsure about a recommendation you’ve already received. Call (425) 642-3485 to schedule.
Written by Corrine Halstead, Owner, Level Two Chimney Kirkland at Level Two Chimney Kirkland, serving Kirkland and nearby areas.