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.
Gelco Chimney Cleaning & Sweep in Pasadena: What to Know First
We provide independent Gelco chimney cleaning and sweep services throughout Pasadena, with most inspections and cleanings scheduled within a few business days and completed in a single visit. A standard Gelco system cleaning and Level 2 camera inspection runs $189-$329, and we deliver a written price before any work starts - no exceptions. This page is for Pasadena homeowners who own Gelco chimney caps, dampers, or liner components and need cleaning, inspection, or maintenance performed by technicians who know the product line without charging dealership rates. Call (213) 459-6058 to book or ask about our Free Second Opinion on any competitor’s written estimate.
How Gelco Products Fail - and How We Fix Them
- Gelco Model C chimney caps with galvanized mesh - The 5/8-inch mesh on caps installed before 2015 corrodes from the inside out in Pasadena’s combination of marine layer moisture and summer heat cycling. We see this most often in homes south of the 210 near San Rafael Hills, where afternoon sun hits wet metal. We replace with 304 stainless mesh or full stainless cap assemblies, documenting the before condition with camera footage per Clause 4 of the Haven Standard.
- Gelco Multi-Flue caps with integrated dampers - The cast-aluminum damper frames warp after repeated thermal shock, typically showing as a cap that “looks fine from the ground” but leaks smoke during backdraft conditions. Corrine Halstead and our crew spot this during Level 2 inspection by measuring damper-seat gaps with feeler gauges. We source replacement dampers through Haven’s buying network, matching Gelco specs without the OEM markup.
- Gelco Pre-Fab chimney chase covers in 26-gauge galvanized - These develop pinhole rust at fastening points within 7-10 years in Pasadena’s climate, sooner if sprinkler systems hit the chase regularly. We see this in the bungalow courts near Bungalow Heaven where original 1980s-90s pre-fab fireplaces remain common. Our fix: custom-fabricated chase cover in 24-gauge stainless or copper, with welded seams and proper diverter flashing.
- Gelco Lyemance and Lock-Top top-sealing dampers - The silicone rubber gasket hardens and loses seal after 4-6 years of UV exposure, particularly on south-facing chimneys in Altadena-adjacent Pasadena foothills. Owners report “cold air falling down the chimney” or smell intrusion before they notice draft problems. We replace gaskets with OEM-spec silicone or upgrade to all-stainless damper assemblies when the frame is still sound.
- Gelco stainless flex liner termination collars - The slip-fit connection between liner and termination can work loose during earthquake swarms common to the Pasadena seismic zone, creating a gap that deposits condensation and creosote behind the surround. We find this during camera inspection, reseat with proper mechanical fastening, and seal with high-temp silicone rated to 572°F - never generic RTV that off-gasses.
Our Gelco Chimney Cleaning & Sweep Process

- 1
Schedule and confirm - Live person answers, assigns a named technician, and texts when they’re en route. Haven Standard Clause 2: verified crew, on schedule.
- 2
Level 2 camera inspection first - We run the camera down the flue before touching tools. The camera doesn’t negotiate - it just shows what’s there. Corrine reviews footage with you on-site.
- 3
Written price, written scope - Based on what the camera found, we deliver a fixed price and scope in writing. Haven Standard Clause 1: have it in writing before work starts. No surprises.
- 4
Clean and service - Rotary sweeping for creosote and soot removal, component-specific service for your Gelco cap, damper, or liner termination. OEM or quality aftermarket parts sourced through Haven’s network.
- 5
Post-work documentation - After photos, camera re-check, and written completion record. Clause 4 requires the photo archive; you get copies.
- 6
365-Day Done Right Promise - If it’s not done right, we make it right. Stamped on every job.
Before
AfterWhat Gelco Chimney Cleaning & Sweep Costs in Pasadena
| Service | Typical Range | What Moves It |
|---|---|---|
| Annual sweep + Level 1 inspection, Gelco system | $189-$249 | Number of flues, roof access difficulty, creosote class (I vs. III) |
| Level 2 camera inspection + sweep | $249-$329 | Chase height, need for ladder work, documentation copies requested |
| Gelco cap mesh replacement (stainless) | $140-$220 | Cap size, single vs. multi-flue, need for new base ring |
| Gelco top-sealing damper gasket replacement | $180-$280 | Gasket only vs. full damper assembly, access conditions |
| Chase cover replacement (custom stainless) | $680-$1,150 | Dimensions, gauge, cricket complexity, scaffolding needs |
These are Pasadena market ranges based on actual Haven Standard quotes delivered in 2023-2024. Your exact price comes after inspection, never before. Call (213) 459-6058 for a free estimate - we’ll give you the written number on the spot.
Why Pasadena Homeowners Call Level Two Chimney Pasadena for Gelco Work

We’re independently owned and operated, not a franchise, and we’ve completed more than 38,000 chimney inspections and cleanings since 2009 - every one with a written price first and a documented record after. Our technicians are background-checked, uniformed, and carry license information on every page of every invoice. We source Gelco-compatible materials alongside DuraFlex, HeatShield, Olympia Chimney, Famco, and Copperfield through Haven’s buying network, which keeps prices honest and parts available without single-brand dependency. The 365-Day Done Right Promise applies to every Gelco service we perform in Pasadena, and our Free Second Opinion means you can bring us any competitor’s written quote for comparison. Live phone support runs 24 hours a day, 7 days a week.
FAQs
No - Gelco’s product warranties cover manufacturing defects, not who performs routine maintenance. We document our work with photos and written records that satisfy most warranty claim requirements if a defect does surface. Keep your Clause 4 documentation; it’s your proof of proper care. Call (213) 459-6058 if you need help with a claim.
We source both. For caps and dampers still in production, we can quote OEM Gelco parts through Haven’s network. For discontinued lines - the pre-2015 galvanized mesh caps, for example - we fabricate or source equivalent stainless components that meet or exceed original specs. We tell you which we’re using and why before any order is placed.
The camera decides, not us. A warped damper frame usually needs replacement; a hardened gasket does not. A chase cover with surface rust can sometimes be coated; one with pinholes through the metal cannot. We show you the footage, explain the failure mode, and quote both options when both exist. No work proceeds without your written approval.
NFPA 211 recommends annual inspection for all wood-burning systems, and cleaning when creosote reaches 1/8-inch thickness. In Pasadena’s dry climate with occasional Santa Ana wind events, we see accelerated creosote buildup in systems that vent into turbulent rooftop zones - particularly in the foothill neighborhoods above 1,000 feet. Annual sweep with Level 2 inspection every 2-3 years is our standard recommendation for active Gelco fireplaces.
Class I creosote becomes Class III (glazed, tar-like, and ignitable) with heat cycling and time. Class III cannot be removed with standard brushing and requires chemical treatment or rotary chain-flail equipment. The real risk is chimney fire or carbon monoxide leakage through deteriorated components - both documented in Pasadena County fire records. The cost of deferred maintenance typically exceeds a decade of annual cleanings. Call (213) 459-6058 for a free estimate and we’ll show you exactly what your flue looks like now.
Written by Corrine Halstead, Owner, Level Two Chimney Pasadena at Level Two Chimney Pasadena, serving Pasadena and nearby areas.





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