Sweep & inspection
Caps & crowns
Flue relining
Masonry repair
Gas fireplace serviceLevel 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 Inspection in Houston: What to Know First
Gelco chimney inspection in Houston runs $189 to $349 for most homes, depending on whether you need a Level 1 visual check or a Level 2 camera inspection. We’re an independent Gelco service provider, which means we inspect and repair Gelco chimney systems without being tied to the manufacturer’s pricing or replacement schedules. Most inspections take 60 to 90 minutes, and you get a written report with photos before we quote any repair work.
If you own a Gelco chimney system in a Houston home and you’re seeing rust streaks, hearing loose mortar, or you just bought a house with a Gelco unit you know nothing about, this page tells you what we look for, what it costs, and how we handle the repair side honestly. Call (325) 750-6259 and a live person answers, day or night.
How Gelco Products Fail – and How We Fix Them
Gelco makes solid chimney systems, but every brand has patterns. Here’s what we see on Houston rooftops.
- Gelco stainless steel flue liners showing rust at the seams. Gelco’s rigid stainless liners hold up well in dry climates, but Houston’s humidity and salt air from the Gulf do a number on the seam welds. We find pinhole rust on Gelco liners in Montrose and the Heights more than anywhere else, usually within 12 to 15 years of install. Fix: camera inspection to map the damage, then either a spot repair with a compatible stainless patch or full liner replacement with an appropriate gauge.
- Gelco chimney caps and rain pans lifting in high wind. The cap is the first thing to go because it takes the brunt of Houston’s storm season. We see Gelco caps with bent mounting flanges after a bad spring storm, which lets water run down the flue and into the firebox. Fix: remove, assess the flue for water damage, reseat with proper mechanical fasteners rather than adhesive, and replace the cap if the metal is fatigued.
- Mortar crown deterioration around Gelco termination collars. Gelco’s top plates and termination collars sit in a mortar crown that Houston’s freeze-thaw cycles, followed by 100-degree summers, crack predictably. Once the crown cracks, water wicks under the Gelco collar and rusts the connection. Fix: a properly mixed crown repair with a flexible sealant at the Gelco-to-mortar junction, not a cheap caulk job that fails in two seasons.
- Gelco firestop assemblies installed incorrectly during construction. We run into Gelco installations where the firestop wasn’t secured to the framing, letting heat and embers migrate into the chase. This is a real fire hazard, not a cosmetic issue. Fix: open the chase if accessible, verify clearances, secure the firestop to code, and camera the flue to make sure the inner liner wasn’t damaged by shifting.
- Gelco offset elbows collecting creosote faster than straight runs. Gelco systems that route around rooflines with 15- or 30-degree elbows tend to build creosote at the elbow joints, especially with wood-burning setups where the homeowner doesn’t run the fire hot enough. Fix: heavy brush work on the elbows, camera verification of clean metal, and a straight conversation about fuel and firing habits.
Styles & brands we work with





Our Gelco Chimney Inspection Process
Every Gelco job follows the same sequence, whether it’s a Level 1 visual or a full Level 2 camera inspection with repair. Here’s the process from call to cleanup.
- 1
You call and tell us what you’re seeing. Rust, water stains, a smell, a chimney that won’t draw. We ask specific questions about your Gelco system’s age and history.
- 2
We arrive in a window you approved. A background-checked, uniformed technician gets on-site, and the first thing they do is look at the Gelco system from the ground, the roof, and the firebox.
- 3
Camera inspection if the job needs it. We run a camera through the flue on Level 2 jobs, and you see the footage. No mystery findings, no “your liner is shot” without video proof. Tell me what you’re seeing, I’ll tell you what it costs to fix it.
- 4
We identify Gelco-specific issues and write the scope. If the flue is clean and sound, we say so. If the liner is rusting at the seams, we show you the photo and price both patch and replacement options where both are viable.
- 5
Written price before any tool touches the repair. The number we quote is the number on your invoice. No change orders, no “we found something worse” surprise calls.
- 6
Repair, retest, and the 365-Day Done Right Promise. If we quote a repair, we do the repair, test the system, and leave you with a written one-year guarantee on that specific repair. If it fails within a year, we come back at no charge.
See the difference
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AfterWhat Gelco Chimney Inspection Costs in Houston
Pricing for Gelco inspection work falls into a few clear buckets. Here’s the honest range.
- Level 1 visual inspection: $189 to $249, standard for an annual check or a clean, vented system with no changes in fuel or use.
- Level 2 camera inspection: $289 to $349, required for real estate transactions, after a storm event, or when something changed with the appliance or venting.
- Level 3 inspection: $500 to $1,200 depending on access. This means we’re opening a wall or chase. Rarely needed, but quoted accurately before any cutting happens.
What moves the price: roof pitch and access, chimney height, the condition of the mortar and flashing, and whether the Gelco system is in a chase or exposed. We give you a written price before we start, and the estimate is free. Call (325) 750-6259 to get your ballpark.
Why Houston Homeowners Call Flint Chimney Co Houston for Gelco Work
We don’t chase the cheapest bid, and neither do the homeowners who call us. We run on documentation. Every Gelco inspection gets a written report. Every repair gets a written scope and a written price before the work begins. Every repair carries the 365-Day Done Right Promise in writing, valid for one full year, with a free return visit if a covered repair fails. The phone is answered by a live person 24/7, so when you call about a Gelco cap that lifted in a storm at 9 p.m., you talk to a person, not a voicemail tree.
We also work across the full chimney stack, which matters when a Gelco inspection turns up a liner issue. We install and service DuraFlex and HeatShield products, so when a Gelco liner is beyond saving, we can quote a proper replacement without subbing it out. Hank Delano leads the work in Houston, and he’s been inspecting chimneys here for over a decade, with a steady run of older masonry fireplaces in Montrose keeping the crew honest. We inspect Gelco systems the way we’d want our own chimneys inspected: with proof, not pressure.
FAQs
No, a third-party inspection by a qualified chimney company does not void your Gelco warranty. We document everything and never modify the system without your written approval, so your warranty position stays intact. If we find a manufacturing issue, we’ll give you the photos and measurements to take to Gelco.
We keep common Gelco-compatible repair parts in stock, including caps, rain pans, and termination collars. We also work with local supply houses that carry the line, and we’re honest about lead times before we quote. If a part is backordered, we say so and give you the realistic timeline in writing.
Houston weather changes things fast. A storm can lift a cap, shift an elbow joint, or crack the crown in ways you won’t see from the ground. A Level 1 or Level 2 inspection finds those problems before water and heat do structural damage. Call (325) 750-6259 for a free estimate and we’ll tell you if an inspection is even warranted.
We do both. Inspection is often the first step, and if we find a problem, we quote the repair in writing before starting. For liner failures where Gelco replacement isn’t the right move, we quote DuraFlex or HeatShield options. No upselling, and we’ll tell you plainly when work can safely wait.
Written by Hank Delano, Owner, Flint Chimney Co Houston at Flint Chimney Co Houston, serving Houston and nearby areas.