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 Liner & Rebuild in Severna Park: What to Know First
We provide independent Gelco chimney liner and rebuild service in Severna Park, with most Gelco liner replacements and partial rebuilds completed in a single visit after our Level-2 camera inspection. A typical Gelco stainless steel liner replacement runs $2,800-$4,500 depending on flue height and condition, and we give you the full price before any work begins. As an independent Gelco service provider, we are not affiliated with or authorized by Gelco, which means we source parts based on what your chimney actually needs, not what a brand catalog pushes. This page is for Severna Park homeowners who already have a Gelco liner or are considering one, and want straight answers about when it can be repaired, when it must be replaced, and what it will cost. Call (443) 464-2560 anytime; a live person answers, day or night.
How Gelco Products Fail - and How We Fix Them
- Gelco UltraPro/ProSeries liners with seam separation at the tee connection. We see this most often in Severna Park homes built in the 1980s and 1990s along the B&A Trail corridor, where freeze-thaw cycles work the tee joint every winter. The seam opens not from bad material, but from thermal cycling in tall, uninsulated flues common to those split-level designs. We cut back to sound metal, weld in a new Gelco-compatible tee or switch to a DuraFlex equivalent if the flue geometry demands it, then pressure-test before we leave.
- Gelco flexible liners collapsed by creosote bridging in slow-burning fireplaces. Severna Park’s mature oak and hickory burns cooler and dirtier than the seasoned hardwood Gelco’s flex liners were originally sized for. The liner narrows, draft drops, and the cycle worsens. We pull the liner, ream the flue, and reinstall with proper insulation wrap, or upsize to a HeatShield cerfractory repair if the clay flue is salvageable.
- Gelco rigid stainless elbows eroded by condensing gas appliances. When a Gelco rigid liner serves a converted gas insert in an old Severna Park chimney, the low exhaust temperature produces acidic condensate that pits the elbow welds in 8-12 years. We inspect with a camera to map the damage, then replace the elbow section with OEM Gelco or a higher-grade 316Ti equivalent from Olympia Chimney if the run is particularly exposed.
- Gelco top plate and rain cap galvanic corrosion. The original Gelco top plates from the 2000s used a dissimilar metal combination that corrodes faster within three miles of the Chesapeake, where salt air is a real factor. We replace with all-316 stainless Gelco caps or upgrade to Copperfield copper caps on heritage homes where the homeowner wants the look to last.
- Partial chimney rebuild needed after Gelco liner installation in a structurally compromised flue. Sometimes we open a Severna Park chimney to install a Gelco liner and find the wythe is cracked from the 2011 earthquake or decades of freeze-thaw. We stop, photograph everything, and rebuild the affected courses with matching brick before the liner goes in. Doing both together saves the homeowner a second scaffolding charge and a second mess.
Our Gelco Chimney Liner & Rebuild Process
- 1
Call and schedule. A live person answers, 24 hours a day. We book a Level-2 camera inspection, not a sales visit.
- 2
Inspect and document. Our technician runs a camera the full length of your Gelco flue, records video and stills, and marks every defect. You see the same images we see, and we explain what each one means in plain English.
- 3
Diagnose and quote. We determine whether your Gelco liner can be repaired, needs partial replacement, or requires full replacement, and whether the surrounding masonry can support it. The price we give is the price on the invoice. No surprises.
- 4
Source parts correctly. For Gelco repairs, we use OEM Gelco components when they are the right fit. When a Gelco part has a known weak point or is back-ordered, we specify quality aftermarket from DuraFlex, HeatShield, or Olympia Chimney, and we tell you why.
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Execute and test. Our background-checked, uniformed technicians complete most Gelco liner and rebuild jobs in a single visit. We pressure-test or smoke-test every liner installation before we pack up.
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Guarantee and follow up. Every job is covered by our 90-Day Done Right Promise in writing. If something is not right, we come back. No paperwork, no arguing.
What Gelco Chimney Liner & Rebuild Costs in Severna Park
Pricing depends on flue height, access, and whether we are working inside sound masonry or rebuilding as we go. These are real ranges from recent Gelco jobs in Severna Park:
- Gelco liner repair (patch, tee replacement, cap swap): $650-$1,400
- Gelco flexible liner replacement, standard single-flue: $2,800-$3,800
- Gelco rigid liner replacement with multiple elbows: $3,500-$4,800
- Partial chimney rebuild with new Gelco liner: $5,500-$8,500
- Full chimney rebuild with Gelco or DuraFlex liner: $9,000-$14,000
Factors that move the price: scaffolding height, brick matching on older Severna Park homes, and whether we discover hidden wythe damage during the open-up. We photograph everything. Nothing is recommended without evidence you can see for yourself. Call (443) 464-2560 for a free estimate.
Why Severna Park Homeowners Call Hearthstone Chimney Co. for Gelco Work
We have worked chimneys throughout Severna Park for over 42 years, including the older wood-burning fireplaces along the B&A Trail corridor that see heavy use every winter. Russell Haines and our crew know which Gelco installations were done well and which were cut corners from the start. Our Level-2 inspections end with photos you can see and a plain-English verdict. If the chimney is not safe to use, we will say so. If it is, we will say that too. The 90-Day Done Right Promise means we stand behind every weld, every course of brick, and every liner joint. We are not the cheapest outfit in town, and we do not try to be. We are the ones who plan to be here when you need us again.
FAQs
The original Gelco warranty on most residential liners expires after 10-15 years, and it requires documentation of professional installation that many older Severna Park homes lack. As an independent Gelco service provider, our repairs do not affect any remaining warranty, but we will check your paperwork and tell you honestly what coverage, if any, still applies. Call (443) 464-2560 and we will sort it out.
Yes, for most Gelco series from the 1990s forward, though some proprietary fittings from the early 2000s are discontinued. We stock common Gelco tees, connectors, and caps, and we maintain supplier relationships for obsolete parts. When a Gelco part is unavailable, we specify a DuraFlex or Olympia Chimney equivalent that mates correctly and often outlasts the original. We never leave a job half-finished waiting on back-ordered components.
A camera inspection tells the story. Localized damage, a cracked tee, or a failed top plate usually means repair. Widesseam separation, multiple corrosion points, or a liner that has settled out of alignment means replacement. We show you the footage, explain the threshold, and let you decide. No pressure, no phantom urgency.
Most Gelco liner replacements in Severna Park are completed in one day, including removal of the old liner, flue preparation, installation, and testing. Jobs requiring scaffolding on steep roofs or partial rebuilds may extend to two days. We tell you the timeline when we quote, and we stick to it.
A damaged liner allows exhaust gases, including carbon monoxide, to leak into wall cavities and living spaces. It also lets creosote accumulate in the chimney chase, raising fire risk. That said, not every crack is an emergency. Our inspection separates what needs immediate attention from what can be scheduled next season. Call (443) 464-2560 for a free estimate and an honest timeline.
Written by Russell Haines, Owner, Hearthstone Chimney Co. at Hearthstone Chimney Co., serving Severna Park and nearby areas.





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