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.
Before
After
Before
AfterFast, Reliable Chimney Repair Across Jericho
Chimney repair in Jericho typically runs $450-$2,800 depending on whether you need mortar repointing, crown rebuilding, or full chimney rebuilding, and most jobs are completed in a single visit with upfront pricing agreed before we start. Our crews are dispatched from our New York City office and serve Jericho directly, carrying professional-grade materials from HeatShield, Gelco, and Olympia Chimney so we don’t waste your time with supply runs.
We’ve worked on chimneys from the post-war colonials near the Jericho Turnpike to the expanded split-levels off Berry Hill Road and the newer rebuilds closer to Syosset. Jericho’s inland position in Nassau County means your chimney takes the backside of every nor’easter - wind-driven rain and freeze-thaw cycles, not ocean salt, are what pit through galvanized caps and open mortar joints. That pattern is predictable once you know to look for it. Call (934) 348-4832 - a live person answers, 24 hours a day.
Why Hearthstone Chimney Co. Is Jericho’s Preferred Chimney Repair Company
We’ve served local communities for over 42 years, and Jericho has been part of our route since the beginning. Our technicians know the difference between a 1962 colonial with original terra-cotta flue tile and a 2005 teardown with a factory-built zero-clearance fireplace - because getting that wrong means cleaning with the wrong protocol and missing damage that matters.
Our Level-2 camera inspections end with photos you can see and a plain-English verdict. No jargon, no scare tactics. If your chimney can safely wait another season, we’ll say so. If the liner is cracked or the crown is letting water into the smoke chamber, we’ll show you the image and explain exactly what it takes to fix it.
Every repair is backed by our 90-Day Done Right Promise - in writing, no arguing. If it’s not right, we come back. Background-checked, uniformed technicians. Most jobs completed in a single visit. And the number on your estimate is the number on your invoice.
Calls are answered by a live person, 24/7. Not voicemail. Not a callback queue. A real person who can book your appointment or connect you directly with our Chimney Repair team.
Our Chimney Repair Services in Jericho
Mortar Repointing
The post-war brickwork on Jericho’s 1950s-1970s colonials and cape cods wasn’t built for decades of freeze-thaw cycling. When nor’easter-driven rain seeps into hairline mortar cracks and expands overnight at twenty degrees, the face of the brick spalls off and the joint opens wider. We grind out deteriorated mortar to proper depth and repoint with color-matched, high-bond masonry mortar - not the quick-set stuff that cracks again in two winters. A typical mortar repointing job on a Jericho chimney runs $850-$1,800.
Spalling Brick Repair
Spalling is what happens after mortar repointing was put off too long. Water gets behind the brick face, freezes, and pops the surface off in flakes. On chimneys we see near the Jericho Turnpike and along Cantiague Lane, this often starts on the north and west exposures that take the brunt of winter storms. We remove damaged brick, match replacement units to the original, and address the water source - usually a cracked crown or failed cap - so the repair lasts. Spalling brick repair in Jericho typically costs $1,200-$2,400.
Chimney Waterproofing
Jericho’s inland Nassau position takes the nor’easter backside, not the ocean front, so chimneys here corrode from wind-driven rain and freeze-thaw spalling rather than direct salt spray - yet the tell is the same: galvanized caps and thin crowns give out years before the masonry does. We apply vapor-permeable waterproofing sealants that let the chimney breathe while blocking liquid water. This is especially critical on Jericho’s older masonry where decades of thermal cycling from oil-burner exhaust have left the brick more porous than it looks. Chimney waterproofing in Jericho runs $450-$950 and includes a full inspection of the crown, cap, and flashing.
Flashing Repair
Step flashing and counterflashing around the chimney-to-roof intersection is where we find some of the most expensive hidden damage in Jericho homes. Wind-driven rain pushes uphill during nor’easters, and if the flashing is galvanized rather than stainless, or if the sealant has dried and cracked, water runs straight into the attic and down the framing. We fabricate and install custom flashing with proper overlap and seal, and we use stainless steel or copper on Jericho jobs - never galvanized that’ll pit through in five years. Flashing repair in Jericho typically costs $650-$1,400.
What happens when you call
- 1
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 stock professional-grade materials from HeatShield, Gelco, and Olympia Chimney on our Jericho service vehicles - not because it looks good on a brochure, but because it means we can finish most repairs in one visit without leaving you waiting on parts. HeatShield’s cerfractory resurfacing system lets us restore deteriorated smoke chamber walls without a full rebuild. Gelco caps and Olympia Chimney liners are spec’d for the exact flue dimensions we measure on site, not close-enough substitutes. When we quote a job in Jericho, the materials are already in the truck.
Common Chimney Repair Problems We See in Jericho Homes
- Galvanized caps and flashings pit through under nor’easter-driven rain long before the brick shows any problem. We find this constantly on Jericho’s 1960s and 1970s builds where original galvanized components were never upgraded. The cap looks fine from the ground, but up close it’s perforated and letting water straight onto the crown.
- Freeze-thaw cycles on Jericho’s older mortar joints cause spalling that opens a path for water into the smoke chamber. This accelerates dramatically after a single harsh winter, and by spring the damage is visible from the sidewalk.
- Zero-clearance fireboxes on Turnpike-corridor rebuilds get treated as masonry and are cleaned with the wrong protocol. These factory-built units look like brick from the street but have metal fireboxes and specific clearances. Using masonry tools or the wrong brush type can damage the refractory panels.
- Abandoned oil-era flue liners left after a gas conversion serve no purpose and hide cracked terra-cotta behind them. Jericho’s oil-to-gas conversion wave left countless chimneys with oversized flues that don’t vent modern appliances safely. The old liner sits there, cracked and obstructed, while the homeowner assumes the chimney was “checked” during the HVAC swap.
On a split-level off the Jericho Turnpike corridor, our tech found a galvanized chimney cap rusted through and a hairline-cracked crown letting water into a factory-built zero-clearance firebox the homeowner had assumed was masonry. We swapped in a stainless DuraFlex cap, rebuilt the crown with a proper overhang, and camera-inspected the flue liner before calling it done.
Pricing for Chimney Repair in Jericho, NY
Here’s what chimney repair costs in Jericho’s market, based on jobs we’ve completed from the Turnpike corridor to the neighborhoods near Plainview:
| Service | Typical Range in Jericho |
|---|---|
| Mortar Repointing | $850 - $1,800 |
| Spalling Brick Repair | $1,200 - $2,400 |
| Chimney Waterproofing | $450 - $950 |
| Flashing Repair | $650 - $1,400 |
| Crown Rebuild | $900 - $1,800 |
| Chimney Rebuilding (partial) | $2,200 - $4,500 |
| Full Chimney Rebuilding | $4,500 - $8,500 |
What moves you within these ranges: accessibility (steep roof, tight property lines), extent of hidden damage found during inspection, and whether the flue liner needs replacement alongside the masonry work. We do not recommend liner replacement without camera evidence you can see for yourself. Every estimate is free, every price is agreed upfront, and every repair is backed by our 90-Day Done Right Promise. Call (934) 348-4832 for an exact quote.
We Also Serve Cities Near Jericho
Our crews work Chimney Repair in Jericho and the surrounding Nassau County communities: Plainview, Syosset, Woodbury, and East Norwich. Same trucks, same materials, same upfront pricing and written guarantee. If you’re on the border between towns, we’ll schedule based on route efficiency - not which side of the line you live on.
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
Every chimney in Jericho should have a Level-2 camera inspection annually, and we recommend checking the cap and crown after every severe nor’easter. The freeze-thaw cycling here is harder on masonry than the temperature alone suggests - water finds a crack on Monday, freezes by Wednesday, and opens a path for more water by Friday. Call (934) 348-4832 to schedule; estimates are free.
Yes, and often more urgently than a chimney still venting oil. The oversized flue liners left behind after Jericho’s oil-to-gas conversion wave are frequently cracked, partially collapsed, or obstructed by debris - and they no longer match the venting requirements of your gas appliance. We camera-inspect every converted chimney to determine whether relining, decommissioning, or repair is needed. Nothing is recommended without photo evidence you can see.
They don’t, actually - but the failure mode looks different. Jericho’s inland position means you get wind-driven rain and freeze-thaw spalling rather than direct salt spray corrosion. The South Shore sees pitting from salt; Jericho sees crowns crack from thermal shock and galvanized caps rust from standing water that freezes and thaws thirty times a winter. Either way, thin crowns and cheap caps fail first. We spec stainless caps and proper crown overhangs on every Jericho repair.
Maybe not. The teardown-and-rebuild activity along the Turnpike corridor in the late 1990s and 2000s produced large colonials with factory-built zero-clearance fireplaces that mimic masonry from the curb. These units have metal fireboxes, specific clearances to combustibles, and require different cleaning protocols. Our technicians verify construction type before starting any work - treating a zero-clearance unit like masonry can damage refractory panels and void warranties.
First-degree creosote is flaky, light, and brushes off easily - what you’d expect from seasoned hardwood burned hot. Third-degree is glossy, tar-like, and baked onto the flue walls; it requires chemical treatment or rotary removal and is a genuine chimney fire hazard. You cannot tell by looking up from the hearth. Our Level-2 camera inspection shows the creosote type, location, and thickness, and we explain whether sweeping, chemical treatment, or repair is warranted. Call (934) 348-4832 - estimates are free, and we’ll be there when we say.
Written by Russell Haines, Owner at Hearthstone Chimney Co., serving Jericho and Nassau County since 1984.