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
AfterGelco Chimney Liner & Rebuild in Dallas: What to Know First
We provide independent Gelco chimney liner and rebuild service in Dallas, typically quoting and scheduling within 24 hours of your call and completing most liner replacements in one day. Every Gelco job starts with a camera-scan inspection, a written price before any work starts, and a documented photo record when we’re done. If you own a Gelco stainless or flexible liner that’s showing rust flakes in the firebox, drafting problems on still days, or was installed before 2010, this page is for you. Call (972) 284-1392 for a free estimate or a free second opinion on any written quote you’ve already received.
How Gelco Products Fail - and How We Fix Them
- Gelco Ultrapro stainless liners (2005-2015): The 316Ti alloy in early Ultrapro runs was prone to chloride stress corrosion in Dallas’s clay-heavy soil environment, especially where downspouts drained near the chimney base. We see this in Lakewood and M Streets homes with mature oak canopies that keep the north face damp year-round. We pull the damaged section, verify the remaining flue with a camera, and sleeve with a current-spec 316L or AL29-4C liner rated for the appliance.
- Gelco Flex-All flexible liners: The corrugations flatten at tight offsets where the chimney makes a jog around a Dallas Tudor’s roofline. A flattened flex liner restricts draft and collects acidic condensate in the valleys. We measure the offset angle with a laser, then either reroute with a rigid sectional where space allows or upsize the flex to maintain full cross-section.
- Gelco standard-duty liners in gas conversions: Homeowners who switched from wood to gas without upsizing the liner created a mismatch. Gas flue gases are cooler and wetter; the original Gelco wood-rated liner corrodes from the inside out in 3-5 years. We find this in Preston Hollow ranch remodels. Our fix: a properly sized AL29-4C liner or, for direct-vent inserts, a dedicated vent kit.
- Gelco top-sealing dampers integrated with liner tops: The cast-aluminum damper frame cracks after thermal cycling in Texas’s 40-degree winter temperature swings. Water enters, freezes in the rare hard freeze, and spalls the flue crown. We replace with a stainless Gelco-compatible damper or, if the crown is compromised, rebuild the top with a poured concrete crown and a separate exterior damper.
- Gelco liner collars and connector fittings: The original twist-lock collars loosen where they meet a factory-built fireplace in Dallas’s expansive-gumbo-soil settlements. We see gaps open at the thimble in homes east of White Rock Lake. We reseat with a mechanical-lock adapter, seal with 2000°F rated ceramic, and document the connection with photos per Haven Standard Clause 4.
Our Gelco Chimney Liner & Rebuild Process
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Call and schedule. A live person answers 24/7. We book a Level 2 inspection with camera scan.
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Camera goes in first. Everything else follows. Corrine Halstead or a named technician runs the camera, identifies the Gelco series, and records the failure mode.
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Written price, written scope. We deliver a fixed price before any work starts - Haven Standard Clause 1. If we recommend a liner replacement over a repair, we show you the camera footage and explain why.
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Parts decision. We source Gelco-compatible components through our Haven buying network. When Gelco OEM is back-ordered (common on discontinued Ultrapro fittings), we specify a DuraFlex or Olympia Chimney equivalent that meets or exceeds the original spec - never a downgrade.
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Installation and test. We pull the old liner, install the new, and run a smoke or pressure test to verify draft and seal.
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Documentation and guarantee. You receive photos, a written warranty, and the 365-Day Done Right Promise stamped on the job.
Before
AfterWhat Gelco Chimney Liner & Rebuild Costs in Dallas
| Service | Typical Range |
|---|---|
| Gelco liner repair (collar, top plate, or partial section) | $450 - $890 |
| Gelco flexible liner replacement (standard fireplace) | $1,850 - $2,800 |
| Gelco stainless rigid liner replacement with insulation | $2,400 - $3,600 |
| Partial chimney rebuild (crown, flue tiles, liner top) | $1,200 - $2,200 |
| Full chimney rebuild with new Gelco-compatible liner | $4,500 - $7,500 |
What moves the price: chimney height, roof pitch and access, whether the original Gelco liner was foamed in place (removal labor), and if the clay flue tiles are spalled and need extraction. We do not quote over the phone without seeing the flue. Bring us any competitor’s written estimate for a free second opinion. Call (972) 284-1392 for an exact quote - estimates are free.
Why Dallas Homeowners Call Level Two Chimney Dallas for Gelco Work
We’ve inspected and cleaned more than 38,000 chimneys since 2009, and a significant share of Dallas’s older Gelco inventory has passed through our cameras. Our technicians are background-checked, uniformed, and assigned by name - you’ll get a text when yours is on the way. We’re not a franchise; we’re independently owned and operated under the Haven Standard, which means every promise is backed by a written warranty, not a corporate call center. We also carry DuraFlex and HeatShield materials, so if your Gelco system needs a hybrid repair or a full transition to another spec, we can quote both paths and let the camera footage decide. The 365-Day Done Right Promise applies to every Gelco job we touch.
FAQs
No - but the original Gelco warranty on most residential liners expired after 10-15 years, and many Dallas installations are now past that window. As an independent Gelco service provider, we do not represent the manufacturer, but we install compatible parts that carry their own material warranties. We document everything so you have a record if a parts claim arises. Call (972) 284-1392 if you want us to check your install date against the series warranty terms.
Yes, through our Haven buying network and direct relationships with Gelco distributors. When OEM parts are unavailable - common for pre-2012 Ultrapro twist-lock fittings - we specify cross-referenced DuraFlex or Olympia Chimney equivalents that meet or exceed the original pressure and temperature ratings. We show you the spec sheet before installation.
The camera decides. Pinholes, isolated collar corrosion, or a cracked top plate typically justify repair. Widespread pitting, multiple perforations, or a liner that has settled out of alignment usually mean replacement. We show you the footage, explain the threshold, and give a written price for both options when it’s close. No recommendation without photographic evidence.
Most residential replacements in Dallas are completed in one day. Taller chimneys (two-story Highland Park homes), steep pitches, or foamed-in-place liners that must be extracted add time. We give you a firm schedule when we deliver the written price - not a window, a time.
A perforated liner lets flue gases leak into wall cavities or living space, including carbon monoxide. In Dallas’s tight, energy-efficient homes built 2015-2025, negative pressure can pull those gases back inside. Spalling clay tiles or a cracked liner also increase chimney fire risk if you’re still burning wood. We don’t upsell on fear - we show you the camera evidence and let you decide. Call (972) 284-1392 for a free estimate.
Written by Corrine Halstead, Owner, Level Two Chimney Dallas at Level Two Chimney Dallas, serving Dallas and nearby areas.