Fast, Reliable Chimney Repair Across Jericho
Chimney repair in Jericho typically costs between $450 and $3,800 depending on scope, with most mortar repointing and flashing jobs completed in a single day. Apex Chimney Cleaning Greater New York serves Jericho homeowners from our New York City base, and Robert Garcia, our owner and lead technician, regularly makes the run out to Nassau County for inspections and repairs. If you’re in the 11753 or 11853 ZIP codes and your chimney’s showing cracks, leaks, or deteriorating brick, call (866) 884-9512 for a free estimate — we’ll give you an honest assessment and a clear price before any work begins.
We’ve worked on enough Jericho chimneys to know the local patterns. The split-levels along South Marginal Road, the center-hall colonials near Jericho High School, the expanded ranches off Jericho Turnpike — these homes share a common DNA from the 1952–1975 build-out that shaped this community. Their original masonry chimneys are now 50–70 years old, and the specific way they were built creates repair challenges you won’t find in newer construction or even in neighboring towns with different housing stock. That’s why our Chimney Repair team doesn’t do cookie-cutter assessments.
Why Apex Chimney Cleaning Greater New York Is Jericho’s Preferred Chimney Repair Company
Our reputation in Jericho is built on showing up and doing the work ourselves. Robert Garcia handles every job personally — he’s the one on your roof, the one pointing the mortar, the one explaining what he found. Over 17 years of chimney-only focus, we’ve accumulated 1,096 verified customer reviews averaging 4.7 stars, and a significant portion of those come from repeat Jericho homeowners who’ve learned they can get the decision-maker on-site, not a subcontractor who needs to call the office for approval.
Response time to Jericho is typically same-day or next-day for urgent issues like active leaks or compromised flue liners. We know the local permitting environment in Nassau County, and we understand how Jericho’s inland position — those 15–25 freeze-thaw cycles each winter, the heavy snow loads that sit on crowns through January and February — accelerates deterioration in ways that South Shore salt-air corrosion doesn’t. When we inspect a chimney on Birchwood Road or Maple Avenue, we’re already thinking about what that specific winter exposure has done to the mortar and liner.
Our Chimney Repair Services in Jericho
Mortar Repointing
In Jericho’s 1950s–1970s brick chimneys, the original lime-based mortar has endured five decades of thermal expansion and freeze-thaw stress. We grind out deteriorated joints to proper depth and repoint with color-matched, high-bond masonry mortar formulated for Long Island’s climate. A typical mortar repointing job on a Jericho colonial runs $850–$1,800 depending on accessibility and the percentage of joints needing work. On split-levels with chimneys tucked into roof valleys, the labor increases — but we price it upfront, no ambiguity.
Spalling Brick Repair
Spalling — the flaking and crumbling of brick faces — is rampant in Jericho chimneys where moisture has penetrated through cracked crowns or deteriorated flashing, then frozen and expanded. We remove spalled units, source matching brick where possible, and rebuild the affected courses. For a partial-face repair on a 1960s chimney in Jericho, expect $650–$1,400. Full-course replacement on a severely compromised stack runs higher. We always inspect the underlying cause — usually crown failure or abandoned flue moisture — so the repair lasts.
Chimney Waterproofing
Jericho’s seasonal fireplace use pattern creates a specific vulnerability: chimneys that sit cold and damp for eight months, then experience rapid heating when the first fire is lit in October. That thermal shock opens micro-cracks in masonry that absorb rainfall year-round. We apply vapor-permeable waterproofing agents — not sealers that trap moisture — after repairing any active leaks. A waterproofing treatment for a standard Jericho chimney runs $400–$750 and carries a 10-year performance warranty against water penetration.
Flashing Repair
The step flashing and counter-flashing where Jericho’s chimneys penetrate roofs are original on most homes here, and the lead or galvanized steel has simply reached end of life. We fabricate and install new flashing integrated with your roofing system, sealed with professional-grade compounds. Flashing repair in Jericho typically costs $550–$1,200 depending on roof pitch, chimney width, and whether the surrounding shingles need partial replacement. We see a lot of this work after winter storms on homes near Jericho Turnpike and the North Broadway corridor.
Chimney Rebuilding & Tuckpointing
When deterioration exceeds what spot repair can address, we rebuild. This is where our 17 years of chimney-only experience matters — we’ve reconstructed stacks from the roofline up on colonials near Robert Seaman Elementary and done full teardowns on expanded ranches off South Oyster Bay Road. A partial rebuild (roofline to top) in Jericho runs $2,200–$3,800; full rebuilds including foundation work are priced individually after structural assessment. Tuckpointing — the decorative and functional restoration of fine mortar joints — is included where historical accuracy matters, though most Jericho homes need structural repointing rather than aesthetic tuckpointing. We do both, and we know the difference.
What happens when you call
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A real person answersNo phone trees — you reach a local pro.
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You get an upfront price rangeHonest numbers before anyone is dispatched.
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A background-checked tech heads outLicensed & insured, dispatched right away.
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You approve before work beginsNothing starts until you say go.
Trusted Brands We Service in Jericho
We install professional-grade materials from the same suppliers that commercial chimney contractors use: DuraFlex stainless steel liners for relining jobs, HeatShield cerfractory sealant for crown restoration and flue resurfacing, and Famco chimney caps and termination components. We keep common sizes in stock for Jericho customers, which means faster turnaround when your inspection reveals a failed liner or cracked crown. No waiting three weeks for a special order — Robert carries the inventory that matches what he’s seeing in the field. Copperfield and Olympia Chimney products round out our kit for custom cap fabrications and specialized termination needs on Jericho’s varied rooflines.
Common Chimney Repair Problems We See in Jericho Homes
- Freeze-thaw fracture in original mortar. Jericho’s 15–25 annual freeze-thaw cycles progressively destroy lime mortar joints in 50–70 year old chimneys. By February, we’ve usually booked a dozen repointing jobs from the winter’s damage.
- Abandoned oil-flue liner degradation. The decommissioned clay-tile flue left in place after gas conversion absorbs moisture, spalls internally, and compromises the structural wall between flues. This is nearly universal in Jericho’s split-levels and colonials — and nearly always missed by inspectors who only look down the active fireplace flue.
- Crown cracks from thermal shock and age. Original poured concrete crowns on Jericho chimneys have no reinforcement and minimal slope. After 50+ years of summer UV and winter ice, they’re spider-webbed with cracks that funnel water directly into the chase.
- Seasonal-use thermal shock in terra cotta liners. Jericho homeowners who light their first fire of the season in a cold chimney create rapid temperature gradients that crack original segmented flue tiles. We see the results every October — calls from homes near Hicksville Road and the Wheatley Hills area where the first fire produced smoke backup or a visible crack.
Pricing for Chimney Repair in Jericho, NY
| Service | Typical Range in Jericho |
|---|---|
| Mortar Repointing (partial) | $850 – $1,800 |
| Spalling Brick Repair (partial face) | $650 – $1,400 |
| Chimney Waterproofing | $400 – $750 |
| Flashing Repair | $550 – $1,200 |
| Crown Repair / Resurfacing | $700 – $1,500 |
| Stainless Steel Liner Installation (DuraFlex) | $1,800 – $3,200 |
| Partial Chimney Rebuild | $2,200 – $3,800 |
These ranges reflect actual Jericho pricing based on material costs, Nassau County labor rates, and the specific access challenges of mid-century homes — steep roofs, tight setbacks, chimneys integrated into split-level rooflines. What drives cost upward: extensive scaffolding needs, matching historical brick, or discovering that the abandoned oil flue has compromised the dividing wall (which requires liner installation in both flues or structural reinforcement). What keeps cost controlled: catching problems during routine inspection before water damage spreads. Every estimate we provide in Jericho is free, detailed, and valid for 30 days. Call (866) 884-9512 to schedule.
The Hidden Risk in Jericho’s Dual-Flue Chimneys
Here’s what separates Jericho’s chimney repair needs from almost anywhere else we work: the dual-flue design built into the 1950s–1970s suburban boom. Original chimneys here were constructed with two separate terra cotta flue liners — one for the oil-fired boiler, one for the wood-burning fireplace. When Jericho homeowners converted to gas heat over the following decades, the standard practice was to decommission that oil flue in place. The clay tiles stayed. The mortar between them stayed. And nobody capped or sealed the abandoned liner properly.
That decommissioned flue is now a moisture trap. Rain enters through a missing or deteriorated cap. The tiles crack from freeze-thaw. Spalled brick and degraded mortar accumulate in the chase. And critically, the dividing wall between your abandoned oil flue and your active fireplace flue loses integrity. Carbon monoxide from your fireplace — or from a gas insert with a compromised seal — can migrate through that deteriorated wall into the abandoned flue, then find paths into wall cavities or living spaces. A standard Level 1 inspection that only scopes the “active” flue will miss this entirely. We’ve found it repeatedly in Jericho homes, and it’s why our inspections always assess both flues and the wall between them.
On a center-hall colonial on Maple Avenue, we found the abandoned oil-flue liner had collapsed internally, spalling brick against the active flue. We installed a new DuraFlex stainless steel liner in the fireplace flue and used HeatShield to seal the crown, then tuckpointed the exterior face to restore the stack’s integrity. The homeowner had no idea the abandoned flue was the source of their persistent water staining.
We Also Serve Cities Near Jericho
Our chimney repair coverage extends throughout central Nassau County. We regularly work in Hicksville to the west, Syosset to the east, Plainview to the south, and New Cassel to the southwest. Each of these communities shares some of Jericho’s mid-century housing characteristics, though the specific dual-flue oil-conversion pattern is most concentrated in Jericho’s 1950s–1970s build-out. Wherever you are in the area, Robert Garcia handles the work directly.
Serving Jericho, NY — Our Local Coverage Area
We’re based in the Jericho area and know this community well. Use the map below to see our service coverage — if you’re nearby, we can almost certainly help.
FAQs — Chimney Repair in Jericho
They have two flues because original construction included one for the oil boiler and one for the fireplace — standard for 1950s–1970s Long Island homes. Repair cost increases when the abandoned oil flue has deteriorated and compromised the dividing wall, which requires either dual liner installation or structural rebuilding of the chase. A simple single-flue repair runs $650–$1,400; dual-flue remediation with liner installation typically ranges $2,200–$3,800. Call (866) 884-9512 for an exact quote — estimates are free.
Visible crown cracks aren’t an immediate emergency unless water is actively entering your home, but they will become one within one to two winters of Jericho’s freeze-thaw exposure. Cracked crowns funnel water into the chase, where it degrades mortar, rusts dampers, and spalls flue liners. We recommend scheduling crown repair before the next heating season. HeatShield crown resurfacing runs $700–$1,500 in Jericho. Call (866) 884-9512 for an exact quote — estimates are free.
Yes, if the spalling is limited to the outer face and the structural wythes behind remain sound. We remove damaged units, source matching replacement brick, and rebuild the affected courses. This preserves the original chimney while addressing the water intrusion that caused the damage. Partial spalling repair in Jericho typically costs $650–$1,400. If spalling extends through multiple wythes or the chimney leans, rebuilding becomes necessary. Call (866) 884-9512 for an exact quote — estimates are free.
Waterproofing is available as a standalone service or bundled with masonry repair, but it’s not automatically included — we only apply it after addressing active leaks and deteriorated mortar, since sealing over damaged masonry traps moisture. Our vapor-permeable treatment costs $400–$750 for a standard Jericho chimney and carries a 10-year warranty. Call (866) 884-9512 for an exact quote — estimates are free.
Yes. Prefab fireplace systems in Jericho’s expanded ranches require different expertise than masonry chimneys — metal chase covers, factory-built flue sections, and manufacturer-specific clearances. We’ve repaired and replaced prefab components in homes throughout the Wheatley Hills area and along Jericho Turnpike. Prefab chase cover replacement runs $550–$1,100; full prefab system evaluation is included in our standard inspection. Call (866) 884-9512 for an exact quote — estimates are free.
Ready to fix your chimney? Call Apex Chimney Cleaning Greater New York at (866) 884-9512 for a free, no-obligation estimate in Jericho. Robert Garcia, our owner and lead technician, will inspect your chimney personally — both flues, the crown, the flashing, and the structure — and give you a clear diagnosis with upfront pricing.
Written by Robert Garcia, Owner at Apex Chimney Cleaning Greater New York, serving Jericho and Nassau County since 2007.