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 Repair in Greenwich: What to Know First
Gelco chimney repair in Greenwich typically runs $280-$2,100 depending on whether we’re repointing a few spalled bricks or rebuilding a crown, and most jobs are completed in a single visit once parts are on hand. We’re an independent Gelco service provider - not a manufacturer affiliate - so we repair the product without warranty games. The price we quote before work starts is the price you pay; there’s no “technician found more” moment after the camera goes down the flue. If you own a Gelco chimney system and something’s failing, call (516) 399-5497 and Corrine’s crew will get a camera on it.
How Gelco Products Fail - and How We Fix Them
Gelco makes solid masonry protection coatings and waterproofing systems. The failures we see in Greenwich aren’t manufacturing defects - they’re what happens when New England freeze-thaw cycles meet any masonry surface over time. What matters is knowing where Gelco products fail first, because that tells us what’s underneath.
- Gelco water repellent delamination on crown coating: Gelco’s siloxane-based repellents bond well, but when they’re applied over an already saturated crown, the trapped moisture pushes the coating off from underneath. It looks like peeling paint, but the real problem is crown water infiltration. We strip, address the crown drainage, and recoat only after moisture readings confirm the substrate is dry.
- Spalling brick behind Gelco waterproofing: Greenwich colonials near Cos Cob and Riverside get hammered by wind-driven rain off the Sound. When brick absorbs that water and freezes, the face pops off - spalling. Gelco’s coating slows it, but it won’t stop it once saturation is chronic. We’ll match the brick, rebuild the damaged courses, and reapply a Gelco-compatible repellent as the final layer.
- Mortar joint erosion at the waterline: Gelco products protect the brick face, but the mortar joints are where water gets in first. We regularly see failing tuckpointing on Gelco-treated chimneys where the coating masked the early signs. The fix is full-depth repointing, never a surface smear. We cut out the loose mortar to a proper depth, pack it with the right mix for the chimney’s age, and tool it to match.
- Flashing failure where Gelco maintenance was skipped: Gelco’s system works when the flashing works. If the step flashing wasn’t maintained and water has been running behind the coating for a season or two, you’ll see efflorescence - white mineral staining - at the chimney base. We pull the flashing, inspect the underlayment, replace what’s compromised, and re-flash properly.
- Crown cracks under Gelco coating: Gelco’s waterproofing sits on top of the crown, but if the crown slab cracked from thermal movement, the coating just rides the crack. The camera shows a hairline above that’s a half-inch wide below. We recut and re-pour the crown with proper expansion joints before any coating goes back on.
Our Gelco Chimney Repair Process
Every Gelco job follows the same path. It’s the same whether we’re repointing a backcountry Greenwich estate chimney or a 1950s colonial near Old Greenwich.
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You call. A live person answers. We ask what you’re seeing - spalling, staining, a leak - and we set an inspection window that works for you.
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The camera goes down. We run an NFPA 211 Level 2 camera inspection, documenting everything: liner condition, mortar joint depth, crown integrity, flashing gaps. The photos go into your file.
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We write the price. Before anyone touches a brush, you get a written scope and a written price. Clause 1 of the Haven Standard. No “we’ll see once we open it up.”
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Parts decision. If a component needs replacing, we tell you whether it’s a Gelco OEM part or a quality aftermarket equivalent from our network suppliers - DuraFlex and HeatShield when the liner’s involved - and why it’s the right call for your chimney. You approve it before it’s ordered.
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The repair. Our techs arrive in uniform, do the work to spec, and don’t leave until the repair passes our own standards. That means repointing to full depth, crowns with proper joints, flashing that sheds water.
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Documentation and warranty. You get a photo record of the finished job, a written warranty, and the 365-Day Done Right Promise. If it’s not right, we make it right.
BeforeAfterWhat Gelco Chimney Repair Costs in Greenwich
Here are the numbers we quote on Gelco jobs in Greenwich, based on what the camera shows. These are real ranges from actual work in this market, not a marketing line.
- Repointing and tuckpointing: $600-$1,800 depending on chimney height and joint depth
- Spalled brick repair (patch individual bricks): $35-$75 per brick, including material match
- Crown rebuild with Gelco-compatible coating: $800-$1,600
- Flashing repair or replacement: $450-$1,300 depending on access and underlayment condition
- Waterproofing full chimney with Gelco product: $400-$900
- Partial chimney rebuild above roofline: $1,800-$4,200
What moves the price: access (roof pitch, scaffold or ladder), chimney height, brick matching difficulty on older Greenwich homes, and whether the underlying structure is sound or needs additional masonry work first. Every job gets a written price before work starts. Call (516) 399-5497 for a free estimate - the inspection and quote don’t cost you anything.
Why Greenwich Homeowners Call Level Two Chimney Greenwich for Gelco Work
Because we show you the problem before we quote you a number. Corrine Halstead’s crew has worked chimneys from backcountry Greenwich to the colonials near Cos Cob, and the process doesn’t change: camera first, written price second. We’re not interested in selling you a rebuild when a repoint will do - the photos decide. If a Gelco product has failed, we’ll tell you why it failed and whether the fix involves that product at all. Sometimes the answer is a DuraFlex liner instead of more coating, because the real problem is a cracked flue, not the brick face. We stock parts through our buying network, which keeps prices honest, and we back everything with the 365-Day Done Right Promise. Clause 4 of the Haven Standard means you walk away with a documented photo record of every job. You won’t have to ask for it.
FAQs
No. As an independent Gelco service provider, we don’t report to Gelco and we don’t register anything with the manufacturer. Your warranty - if it’s still active - is between you and Gelco. Our repairs are done to the same masonry standards Gelco expects, but we answer to you, not to the manufacturer.
Most Gelco products arrive within 3-5 business days through our supplier network. If the repair can’t wait - say a crown is actively leaking into a bedroom ceiling - we’ll use a proven aftermarket equivalent that meets or exceeds the Gelco spec, and we’ll tell you that’s what we’re doing before we order it. Call (516) 399-5497 and we’ll give you a straight answer on lead time for your specific repair.
Only if the original coating was doing real work. In Greenwich, a quality siloxane water repellent makes sense on most chimneys because of the freeze-thaw exposure. But if your chimney is in a protected spot and the original Gelco application was thin or failed early, we’ll tell you the masonry doesn’t need it and you’re better off with proper repointing alone.
It depends on what the camera shows at the roofline. If the spalling is limited to a few bricks and the mortar joints below are solid, we repair in place. If the crown has cracked and water’s been running down the flue cavity, we need to open up the top section and assess the liner. We won’t know until we look. The inspection is free.
Every year, if you burn wood. Every two years, minimum, if you only use it occasionally. The freeze-thaw cycles in coastal Connecticut accelerate spalling, and a small crack in October is a missing brick face by March. The camera doesn’t guess. Neither do we.
Written by Corrine Halstead, Owner, Level Two Chimney Greenwich at Level Two Chimney Greenwich, serving Greenwich and nearby areas.