Gas fireplace service
Sweep & inspection
Caps & crowns
Flue relining
Masonry repairLevel 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.
Why Jacksonville Homeowners Choose DuraFlex Chimney Cleaning
Jacksonville Duraflex service means something specific here. We clean and repair DuraFlex flex liners in homes from Riverside to Mandarin, and we know exactly where these systems fail in our climate: at the top termination where salt air eats stainless, and behind the damper where a bad install kinked the flex. As an independent DuraFlex service provider, we are not authorized by or affiliated with the manufacturer, but we work on their liners every week and stock factory components for repairs. Call (904) 453-7823 for a straight answer about your system.
The quick version: if you have a DuraFlex liner in a Jacksonville home, the two things most likely to shorten its life are moisture at the cap connection and creosote glaze from oversized liners. We address both. Ruben Castellano’s crew has been doing this since 2002, and we write down exactly what we find in your flue, in plain English, before any repair is quoted.
Why Trust Alcott Chimney Jacksonville for Your DuraFlex Chimney Cleaning?
Ruben Castellano grew up in Los Angeles and learned the chimney trade through hands-on coursework at Los Angeles Trade-Technical College, then spent years working chimneys up and down the West Coast before bringing that background to Jacksonville. He has cleaned and inspected fireplaces from Riverside bungalows to properties near Friendship Fountain, and he still keeps a running notebook of every unusual thing pulled from a firebox. Ask him about the raccoon nest in Riverside sometime.
For DuraFlex work specifically, our technicians know the difference between a liner installed correctly and one that is failing early. We see the rust-through at terminations, the warped inner walls on PL vent, and the crushed flex sections other companies miss during a quick sweep. We read DuraFlex’s current catalog and installation details without pretending to be factory reps. Every technician who arrives at your door is background-checked and identity-verified under the Threshold Standard, and you will know their name and see their photo before we arrive. Written price before any work starts. Written guarantee on every repair, with a free return visit if that repair fails within the coverage period.
Styles & brands we work with
Common DuraFlex Chimney Cleaning Problems We Fix in Jacksonville
- Corrosion pinholes at the top termination. Salt air from the Intracoastal and Atlantic sits on the cap connection and eats the stainless at that junction. You will see white or rust-colored staining near the rain cap. We drop the liner, inspect the full run, and replace the damaged section with new DuraFlex Pro rather than patching a hole that will reopen in two seasons.
- Kinked or collapsed flex sections behind the damper. This happens when an installer pulled the liner without a proper pull cone. The flex accordions against itself, restricts draft, and eventually tears. Smoke spillover on windy days is the telltale symptom. We remove the kinked section, measure for correct diameter, and reinstall clean.
- Creosote glaze bonding to the inner 316Ti wall. When a liner is oversized for an open fireplace, the flue gases cool too quickly and creosote condenses as a hard glaze rather than brushing off. We see this constantly in Jacksonville’s humid winters, when fireplaces run intermittently during damp cold snaps. Rotary cleaning with the correct head removes it without scoring the stainless.
- Loose pop-rivet joints on aluminum gas liners. Aluminum DuraFlex liners use pop-rivet connections at the appliance connector and top plate. Vibration from gas logs and thermal cycling loosens those rivets over time, and carbon monoxide can leak into the chase. We inspect every joint with a combustion analyzer, not just a visual check.
- Failed termination kits after Jacksonville storms. Nor’easters and tropical systems drive wind-driven rain under older DuraFlex caps and storm collars. Homeowners in Mandarin and Arlington call with water-stained ceilings after every big blow. We replace caps, collars, and crown flashing, then reseal the crown so water has no path in.
DuraFlex Parts & Our Repair-vs-Replace Approach
We stock DuraFlex factory components: top plates, rain caps, storm collars, and appliance connectors. Tolerances matter with flex liners, and a generic aftermarket cap that does not seat properly against a DuraFlex termination is a leak waiting to happen. For sections of liner that need replacement, we quote with correct-size DuraFlex product, not whatever flex is on the shelf.
The honest math: if a liner has one damaged section and the rest of the run is sound, we patch with factory parts and warrant the work. If we find multiple corrosion points, kinks behind the damper, or creosote glaze that has pitted the inner wall, we tell you replacement is cheaper than repeated repairs. We have talked homeowners out of patching a liner that needed replacement, and we have talked others out of replacing a liner that just needed a new cap. “Tell me what you’re seeing and I’ll tell you what it actually means” is how Ruben puts it. Call (904) 453-7823 and we will explain what we find.
Our DuraFlex Service Process – Step by Step
- 1
Diagnosis. We run a camera through the full liner run before touching anything. Jacksonville’s humidity means creosote glazes differently here than in drier climates, and what looks like a dirty liner is sometimes a corroded one. We look for pinholes at the termination, kinks behind the damper, loose rivets on gas liners, and water staining at the crown.
- 2
Cleaning or repair. For cleaning, we use rotary heads sized to your DuraFlex liner diameter, never oversized brushes that score the stainless. For repairs, we install DuraFlex factory components and never substitute box-store flex or universal caps.
- 3
Test. After cleaning or repair, we draft-test the system with the fireplace running. For gas liners, we check joints with a combustion analyzer to confirm no CO leakage into the chase.
- 4
Warranty. Every repair carries a written guarantee. If the repair fails within the covered period, the second visit is free. That is the 365-Day Done Right Promise, and we put it on paper every time, not just when you ask.
See the difference
Before
After
Before
After
Before
AfterDuraFlex Products We Service & Install in Jacksonville
We service and install the full DuraFlex catalog: DuraFlex PL vent for pellet and wood flex liner applications, DuraFlex Pro 316Ti stainless flex liner for wood-burning and high-efficiency gas, DuraFlex Aluminum flex liner for natural gas and propane, and DuraFlex Z-Flex hybrid liner systems. We stock top plates, rain caps, storm collars, connectors, and pull cones locally for faster turnaround in Jacksonville. If you need a liner relined or a termination rebuilt, we quote the work with the correct DuraFlex product for your specific fireplace, not a one-size-fits-all substitution.
We Also Service These Brands
While this page covers DuraFlex, we carry and install other professional trade brands Jacksonville homeowners rely on, including Chimney Sweep services and products like: HeatShield resurfacing for clay tile flues, Gelco caps and dampers, Olympia Chimney, Famco, and Copperfield. We recommend the right product for the problem, not the product we happen to have the highest margin on.
FAQs – DuraFlex Chimney Cleaning Service in Jacksonville
An oversized liner is the most common cause of creosote glaze we see in Jacksonville. If your liner is larger than your appliance’s flue outlet or oversized for an open fireplace, flue gases cool too quickly and creosote condenses as hard glaze instead of brushing off. We measure the liner diameter, compare it to the appliance and firebox opening, and tell you plainly if the sizing is wrong. Call (904) 453-7823 and we will measure it during the inspection.
White corrosion near the top termination is typically salt air and moisture attacking the stainless where the rain cap meets the liner. Duraflex in Jacksonville Beach corrodes even faster, but this junction still degrades quicker than inland locations. It can become dangerous if corrosion has eaten through to create pinholes that leak carbon monoxide into the chase. We inspect with a combustion analyzer to confirm whether CO is escaping and replace the affected section with new DuraFlex Pro if it is.
Often just the cap and storm collar can be replaced. If the liner itself is corroded at the top termination, we cut back the damaged section and install new DuraFlex factory components with a proper storm collar and crown reseal. You only need a full termination kit if the top plate is also damaged or the liner section below the cap has failed.
A tear near the appliance connector is rarely repairable in place. The flex is under tension at that junction, and a patch will fail quickly. We replace the damaged section with new PL vent and a factory connector, which costs less than the repeated visits a patch would require. You can call (904) 453-7823 and we will quote the replacement honestly, including whether the rest of the run is sound enough to keep.
You clean through the flex, not by removing it. We use rotary cleaning heads sized to your liner diameter, which removes creosote without scoring the stainless. In Jacksonville’s humid climate, we also check for moisture accumulation at the lower transitions where the liner connects to the appliance, since that is where water damage starts. If we see corrosion or collapse, we tell you before we finish the sweep.
A standard Duraflex in Orange Park or Jacksonville chimney sweep typically runs $189 to $349 before any repairs, depending on liner length, access, and creosote condition. Repairs are quoted separately after the camera inspection, and you receive a written price before any work begins. Call (904) 453-7823 for an exact quote, estimates are free.
No. We are an independent DuraFlex service provider, not an authorized warranty station or factory rep. That means we can tell you plainly when a liner is worth repairing and when replacement makes more sense, without any manufacturer quota or sales incentive coloring the recommendation.
Cleaning and inspecting a DuraFlex liner does not void the manufacturer’s warranty, provided the work is done without damaging the liner. We use rotary heads sized to your liner, never oversized brushes, and we document the liner condition before and after with camera footage. If a repair requires replacement parts, we use DuraFlex factory components specifically to keep the system within the manufacturer’s tolerances.
Book Your DuraFlex Service in Jacksonville, FL
Call (904) 453-7823 for a free estimate on DuraFlex chimney cleaning, inspection, or repair in Jacksonville. A live person answers, day or night. You will know our technician’s name and see their photo before we arrive.
Written by Ruben Castellano, Owner at Alcott Chimney Jacksonville, serving Jacksonville since 2002.