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 St. George Homeowners Choose Gelco Chimney Cleaning
We provide independent Gelco chimney cleaning in St. George: sweeping, Level 2 inspection, cap replacement and multi-flue cap work on Gelco factory-built fireplaces and gas inserts, done by technicians who know how these systems actually age here. What makes our Gelco work different is that we diagnose the venting on its own terms instead of running a generic sweep-and-go checklist. A corroded multi-flue cap and a stiff top-mounted damper cause most of the draft complaints we see on Gelco units in St. George.

We’re an independent Gelco service provider. We are not affiliated with, authorized by or sponsored by Gelco, and we don’t speak for the manufacturer. Call (877) 327-1971 for a free estimate.
Why Trust Glacier Chimney Sweep for Your Gelco Chimney Cleaning?
Gelco is a smaller, regional name in this market, which means the technicians who work on it are usually the ones who’ve had their hands inside it. Ours have. Our technicians have up to 12 years of experience with factory-built fireplaces, direct-vent gas inserts, clay-tile flues and multi-flue cap assemblies, and that includes the Gelco units common in St. George’s 1990s-and-later housing.
That familiarity matters because Gelco systems fail in specific ways. A multi-flue cap that’s lost its spark screen to corrosion behaves nothing like a masonry chimney with a cracked crown, and the fix is different too. We use quality parts that fit Gelco equipment, favoring OEM Gelco components when a cap, damper or termination has to match the original factory-built profile, and quality aftermarket equivalents where the fit is universal.
Everything we do is warranty-safe. We don’t cut, pry or force components that are still under a manufacturer’s coverage, and we document what we find with photos so you have a record. If a part has to come out, we tell you why before it does. That’s the difference between a sweep that protects your Gelco fireplace and one that quietly shortens its life.
Styles & brands we work with
- Sweep & inspection
- Caps & crowns
- Flue relining
- Masonry repair
- Gas fireplace service
Common Gelco Chimney Cleaning Problems We Fix in St. George
St. George sits at roughly 2,800 feet in high desert, with triple-digit summers, mild winters and a July-through-September monsoon that arrives fast and violent. That combination drives a predictable set of Gelco failures, and they’re usually about sun, dust, pests and freeze-thaw rather than heavy creosote.
- Corroded, debris-clogged multi-flue caps and spark screens. Windblown dust packs into the screen mesh, and years of intense sun break down the metal around it. Draft chokes, smoke spills on startup, and rust streaks run down the chase. Cleaning the screen alone rarely holds; the cap usually needs replacing.
- Blocked direct-vent termination caps on Gelco gas inserts. Birds nest in the termination, lint and dust collect behind the screen, and the insert shuts off or rolls flame because exhaust can’t escape. This one gets misdiagnosed as a bad gas valve more often than it should.
- Stiff top-mounted damper seals. The seal on a top-mounted damper hardens with heat cycling and stops seating flush. Cold air and monsoon rain come down the flue when the fireplace is off, and the damper no longer closes the chimney off the way it was designed to.
- Cracked crown and flashing seams on the chimney chase. St. George’s sun-and-freeze cycling works stucco and sealant loose at the seams. Water tracks into the flue, rusts metal components and softens the firebox over time. It’s slow, and it’s easy to miss until the damage is expensive.
- Pest intrusion in flues that sit unused. In a desert city the fireplace runs a few dozen nights a year, and that’s plenty of idle time for birds, bees and wasps to move into an uncapped or damaged flue. Nests restrict draft and burn badly if the fireplace is lit before they’re cleared.
A Gelco factory-built fireplace owner often notices weak draft, smoke spill on startup and a rust-stained cap. The usual cause is a corroded or debris-blocked multi-flue cap plus a top-mounted damper that no longer seals. A qualified local pro typically pulls the cap, sweeps the flue, checks the damper and firebox for cracks, and replaces the cap or damper seal so draft and weather protection are restored.
Gelco Parts & Our Repair-vs-Replace Approach
Gelco caps, dampers and terminations come in a range of profiles, and getting the match right is most of the job. We favor OEM Gelco parts when a cap, damper or termination component has to match the original factory-built profile exactly, and quality aftermarket equivalents where fit is universal. We don’t claim to stock genuine Gelco parts on a shelf; we source what fits your unit and install it correctly.
Repair or replace comes down to condition, not age. A cap with surface rust and a serviceable screen gets cleaned and resealed. A cap whose frame has corroded through gets replaced. A top-mounted damper with a stiff seal gets a new seal; one with a bent frame gets a new assembly. If the firebox or chase is too far gone to repair safely, we’ll say so plainly and talk through replacement rather than patching a compromised system and calling it done. A written estimate sets the final price before any work begins.

If you’re not sure which side of that line your Gelco fireplace is on, call (877) 327-1971 and we’ll walk you through what we’d check.
Our Gelco Service Process – Step by Step
- 1
Diagnosis. We start with a Level 2 inspection on Gelco factory-built systems: camera the flue, pull and examine the multi-flue cap, test the top-mounted damper seal, and check the firebox and chase for cracks from sun-and-freeze cycling. Direct-vent gas inserts get their termination cap pulled and inspected for nests and lint.
- 2
Repair or install. Once we know what’s actually wrong, we sweep the flue and replace what needs replacing – cap, spark screen, damper seal or termination component – using parts that fit Gelco equipment correctly.
- 3
Test. We relight the unit or cycle the insert and confirm draft, smoke behavior and damper sealing before we consider the job finished. A cap that’s installed but not tested isn’t done.
- 4
Warranty and documentation. You get photos of what we found and what we replaced, so you have a record and nothing gets done to your Gelco unit that would affect its coverage without you knowing first.
See the difference
Before
After
Before
After
Before
AfterGelco Products We Service & Install in St. George
We work on Gelco factory-built wood-burning fireplaces with steel multi-flue chimneys, including the cap and spark-screen assemblies that take the most weather. We service and install Gelco top-mounted dampers and multi-flue cap assemblies as part of that same scope, and we handle Gelco gas fireplace inserts with direct-vent termination caps, along with inserts paired to clay-tile flues. If you’ve got a Gelco fireplace in St. George and you’re not sure what it needs, a Level 2 inspection answers that before anything gets touched. Cap replacement and multi-flue cap work are the two jobs we run most often here.
We Also Service These Brands
We’re not a single-brand shop, so you’re not stuck if your home has more than one venting system. Alongside Gelco, we install and service DuraFlex flexible liner systems and apply HeatShield ceramic resurfacing when a liner can be restored rather than fully replaced. That means one call covers the chimney work and the parts that go with it, and you get an honest read on which option actually fits your situation.
FAQs – Gelco Chimney Cleaning Service in St. George
No. We’re an independent Gelco service provider and we’re not affiliated with, authorized by or sponsored by the manufacturer. We work on Gelco systems on our own judgment, diagnosing what the venting actually needs rather than following a manufacturer script. Call (877) 327-1971 if you want that kind of independent read on your fireplace.
Most Gelco factory-built fireplaces in St. George need a Level 2 inspection when the unit is new to you, after a cap or damper problem, or after a chimney has sat unused. A Level 1 visual check suits a fireplace with a known service history. Level 2 adds a camera run of the flue and a closer look at the cap, damper and firebox, which is where the sun-and-dust damage shows up. Call (877) 327-1971 and we’ll tell you which one your situation calls for.
A blocked direct-vent termination cap is the most common cause on Gelco gas inserts. Bird nests, lint and dust collect behind the screen, exhaust can’t escape, and the unit shuts down or rolls flame. It gets mistaken for a gas valve problem, so the cap should be inspected before anything else. Call (877) 327-1971 to get it looked at.
Sometimes, if the rust is surface-level and the screen and frame are still sound. Once the frame has corroded through or the spark screen is gone, paint won’t restore draft or keep pests and monsoon rain out, and replacement is the honest answer. We’ll tell you which side yours is on. Call (877) 327-1971 for a free estimate.
Once a year is the usual guidance, even in a desert city where the fireplace runs only a few dozen nights a year. Soot isn’t the main reason here – pest nests, windblown dust and monsoon debris are, and an annual sweep catches all three plus any cap corrosion before it causes draft problems. Call (877) 327-1971 to get one booked.
It depends on what your Gelco unit needs – a standard sweep, a Level 2 inspection, or sweep plus cap or damper work. The estimate is free, and a written estimate sets the final price per job, so there’s no guesswork once we’ve seen the fireplace. Call (877) 327-1971 for an exact quote. Estimates are free.
Book Your Gelco Service in St. George, UT
Whether your Gelco fireplace needs a sweep, a Level 2 inspection or a new multi-flue cap before the cold nights arrive, we can sort it. Call (877) 327-1971 for a free estimate. We answer 24/7. Fast dispatch from 7am to 7pm, Sunday through Friday.
Written by the team at Glacier Chimney Sweep.