Chimney Repair in Selden, NY
Chimney repair in Selden typically runs $850–$3,200 depending on whether you’re looking at mortar repointing, a cracked crown, or a full flue reline, and most jobs we handle in the 11784 ZIP are completed in a single day. We’re Sterling Chimney Cleaning Bridgeport, and while our shop is in Connecticut, Gary Murphy and our team make regular runs across Suffolk County for homeowners who need a specialist, not a handyman with a ladder. If you’re seeing crumbling mortar, water stains on your ceiling, or bricks collecting in your driveway, call us at (888) 975-6389 for a free estimate.
Why Selden Homes Are Different
Selden sits within the Town of Brookhaven’s massive post-war suburban build-out, where thousands of 1960s–1970s Cape Cods and ranch homes were constructed with clay-tile-lined masonry chimneys sized for oil-fired heating systems. As Suffolk County homeowners have aggressively converted those oil boilers to natural gas or propane over the past decade, those oversized, unlined-for-gas flues now accumulate acidic condensate that rapidly deteriorates mortar joints and tile — making flue relining and chimney inspections a near-universal need on these streets rather than an occasional upsell.
The dominant housing stock in Selden is 1960s–1980s single-family Cape Cods, split-levels, and ranch homes, many with original decorative wood-burning fireplaces alongside a separate heating-appliance flue. Aging clay tile liners in these two-flue chimneys are frequently cracked, offset, or missing sections after 50+ years of Long Island freeze-thaw cycles. Central Suffolk County experiences repeated freeze-thaw cycles each winter, and nor’easters deliver heavy wet snow that saturates chimney crowns and mortar beds; the resulting spalling and cracked crowns are the leading repair driver on these homes. The marine-influenced humidity from both Long Island Sound to the north and the Atlantic to the south also accelerates efflorescence and mortar erosion on exposed chimney stacks.
When a Selden homeowner converts from oil to gas, the existing 8-inch clay flue is drastically oversized for the new appliance’s cooler exhaust, causing persistent sooting and water damage inside the flue — a pattern technicians see repeatedly on the neighborhood streets off Middle Country Road and Boyle Road, where the oil-to-gas conversion wave hit hardest in the 2015–2022 period.
Chimney Repair in Selden
Chimney repair in Selden is shaped by two forces: the aging post-war housing stock and the wave of heating-system conversions that left clay flues mismatched to modern appliances. Gary Murphy handles every assessment personally, and he’s spent 14 years diagnosing the specific failure patterns that show up in Suffolk County’s 1960s-era construction. Most repairs we perform in Selden address mortar deterioration, crown damage, or flue failure — often some combination of all three in a single chimney. Chimney Repair covers our full scope, from repointing through full rebuilds.
Mortar Repointing
Repointing in Selden runs $1,200–$2,400 for a typical single-flue chimney, and it’s the repair we perform most often on the Cape Cods and ranches built during Brookhaven’s post-war expansion. The original mortar in these 1960s–1970s chimneys has endured 50+ years of Long Island freeze-thaw cycles, and when you add the acidic condensate from oil-to-gas conversions, that mortar turns to sand faster than it should. We grind out the deteriorated joints to proper depth and repoint with a matching Portland-lime mix formulated for marine-exposed masonry — not a quick surface patch that’ll fail in two winters.
Spalling Brick Repair
Spalling brick repair in Selden typically costs $800–$1,800 depending on how many courses need replacement and whether the damage extends below the roofline. The combination of wet, heavy nor’easter snow saturating chimney crowns and the marine humidity rolling in from Long Island Sound and the Atlantic creates perfect conditions for freeze-thaw spalling on exposed stacks. We’ve replaced entire courses on chimneys in the Selden Plaza area where the crown had cracked years ago and nobody noticed until bricks started landing in the driveway.
Flashing Repair
Flashing repair in Selden costs $450–$950 for standard step-flashing replacement, and it’s often the fastest way to stop active water damage if you’re seeing ceiling stains during heavy rain. The split-levels and ranches in Selden’s older neighborhoods frequently have original galvanized flashing that’s corroded through after 40–50 years, or worse, tar patches applied by previous owners that trap water against the roof deck. We install copper or lead-coated copper flashing with proper counterflashing reglets — the detail work that separates a permanent fix from a recurring leak.
How much does chimney repair cost in Selden?
Most Selden chimney repairs fall between $850 and $3,200, with mortar repointing at $1,200–$2,400, spalling brick repair at $800–$1,800, and flashing replacement at $450–$950. Full rebuilds run $3,500–$8,500. We quote exact figures after inspection — call (888) 975-6389 for a free estimate.
Can a cracked clay liner be repaired without rebuilding the chimney?
Yes, in most cases we can reline a cracked clay liner with a HeatShield cerfractory flue sealant or a stainless DuraFlex liner, avoiding the cost and disruption of a full rebuild. The key factor is whether the surrounding masonry is structurally sound — if the cracks have allowed acidic condensate to compromise the chimney’s structural integrity, Gary will tell you honestly and show you exactly what he found. For Selden’s converted gas systems, we typically see liner damage before structural failure, which keeps repair costs manageable.
Chimney Cleaning & Sweep in Selden
Chimney cleaning and sweep services in Selden typically cost $180–$320 for a standard Level 1 inspection and sweep, with Level 2 inspections running $350–$550 due to the camera work required. Most Selden appointments are scheduled within 48 hours, and we prioritize the pre-winter rush when homeowners remember their chimneys exist. We’re familiar with the streets off Middle Country Road, the ranch rows near Boyle Road, and the Cape Cod clusters around Hawkins Path — the same housing patterns that create the same flue problems, house after house. Chimney Cleaning & Sweep covers our full inspection and maintenance scope.
Level 1 Inspection & Sweep
A Level 1 inspection in Selden is the baseline annual service for homeowners who haven’t changed their heating system or experienced any chimney event. We examine the readily accessible portions of your chimney exterior, interior, and connection — checking for creosote buildup, obstructions, and basic structural soundness. For Selden’s 1960s-era Cape Cods with original decorative fireplaces, this annual check often reveals the first signs of crown cracking or flue tile shifting before water infiltration becomes visible inside the home. The service typically runs $180–$250.
Level 2 Inspection
Level 2 inspections are where our Selden work gets specific. We use a video camera to scan the full length of the flue liner, documenting every crack, spall, and mortar gap. In Selden, this is non-negotiable after any oil-to-gas conversion — the oversized 8-inch clay flue that worked fine for oil heat is now drastically wrong for gas, and the cooler exhaust condenses acidic moisture against the tile walls. Last winter, we serviced a 1972 ranch on a street off Boyle Road where the homeowner had converted from oil to gas in 2019 and never had the flue inspected; the camera revealed mortar gaps allowing flue gases into the attic space.
Creosote & Soot Removal
Creosote accumulation in Selden isn’t just about how often you burn. The oversized gas flues we see throughout the 11784 area create incomplete combustion patterns that deposit soot and acidic residue at abnormal rates — especially on the upper flue walls where draft velocity drops. We remove glazed, powdery, and tar-like creosote deposits using rotary brushes and professional-grade vacuums, not the hardware-store tools that scratch tile or leave debris behind. Heavy creosote removal in Selden typically adds $75–$150 to the base sweep price.
Why do Selden homes with gas conversions need chimney cleaning more often?
The oversized 8-inch clay flue designed for oil heat runs too cool for gas exhaust, causing acidic condensate and soot accumulation that standard gas flues don’t produce. We see this pattern repeatedly on streets off Boyle Road and Middle Country Road where conversions clustered between 2015–2022. Call (888) 975-6389 to schedule a Level 2 inspection if your conversion was more than two years ago and hasn’t been camera-inspected.
How often should a Selden chimney be swept?
Annual sweeping is the standard for any actively used fireplace or wood-burning appliance, and for Selden’s gas-converted heating systems we recommend annual Level 1 inspection with Level 2 camera inspection every 3–5 years. The condensate damage we document in post-conversion homes typically appears within 2–3 years, so early inspection prevents accelerated deterioration from going unnoticed. We offer reminder scheduling for Selden regulars — call (888) 975-6389 to set up annual service.
Fireplace Services in Selden
Fireplace services in Selden, NY typically range from $175 for routine gas fireplace maintenance to $2,800 for full chimney relining with a stainless steel liner, and most standard service calls are completed same-day. If you live in Selden and your fireplace isn’t drafting properly, your gas logs won’t stay lit, or you’re smelling smoke inside your home, we handle it personally. Gary Murphy makes the trip from Bridgeport to Selden regularly — we know the two-flue chimneys, the original decorative fireplaces, and the gas conversion headaches that define this market. Fireplace Services covers everything from damper repair through insert installation.
Chimney Relining
This is the service we perform most often in Selden, and for good reason. The existing 8-inch clay flues in these 1960s–1970s homes were engineered for 500°F+ oil exhaust; modern gas appliances run cooler, so exhaust condenses inside the oversized flue before it can escape. That condensate is acidic, and it dissolves mortar joints within 2–3 years of conversion. We’ve relined dozens of chimneys on streets off Middle Country Road and Boyle Road where this exact pattern caused flue gas leakage into attics and living spaces — a DuraFlex stainless steel liner at $1,800–$2,800 corrects the sizing and eliminates the condensation.
Gas Fireplace Service
Gas fireplaces in Selden’s 1960s–1980s homes often sit dormant for months, then get fired up hard all winter. The marine-influenced humidity from both Long Island Sound to the north and the Atlantic to the south accelerates corrosion on pilot assemblies and thermocouples. We clean burners, test gas pressure, inspect venting, and verify that your logs are positioned for complete combustion — incomplete combustion in a sealed Selden basement can mean carbon monoxide risk. A full gas fireplace tune-up and safety inspection runs $175–$265.
Damper Repair & Replacement
A stuck or rusted damper in a Selden chimney isn’t just drafty — it’s money flying up the flue. In these older homes, throat dampers have seized from decades of disuse, and top-sealing dampers have corroded from salt-laden air. We repair existing dampers where possible and install replacement dampers from Famco when the original is beyond saving. A properly functioning damper can cut your heating bill by 10–15 percent in a drafty Selden Cape Cod, and the repair typically costs $340–$580.
Why are Selden’s clay flues so prone to damage after gas conversion?
The existing 8-inch clay flues in Selden’s 1960s–70s homes were engineered for 500°F+ oil exhaust; modern gas appliances run cooler, so exhaust condenses inside the oversized flue before it can escape. That condensate is acidic, and it dissolves mortar joints within 2–3 years of conversion. We’ve relined dozens of these on streets off Middle Country Road and Boyle Road. Call (888) 975-6389 if your conversion was 2015–2022 and you haven’t had the flue inspected.
What is the most common fireplace repair in Selden?
Chimney relining after oil-to-gas conversion, hands down. The acidic condensate damage in Selden’s oversized clay flues is nearly universal on homes converted in the 2015–2022 wave. We see it on Boyle Road, Middle Country Road, Coram Road — everywhere the 1960s–70s builds cluster. If your conversion was more than two years ago and the flue wasn’t relined, you likely have joint damage whether you’re seeing symptoms yet or not. Call (888) 975-6389 for a camera inspection.
What happens when you call
- 1
A real person answersNo phone trees — you reach a local pro.
- 2
You get an upfront price rangeHonest numbers before anyone is dispatched.
- 3
A background-checked tech heads outLicensed & insured, dispatched right away.
- 4
You approve before work beginsNothing starts until you say go.
Chimney Cap & Crown in Selden
Chimney cap and crown repair in Selden typically runs $280–$890 depending on whether you’re sealing a cracked crown or installing a custom multi-flue cap, and most jobs are completed in a single visit. If you’re seeing flaking concrete on top of your chimney or water stains on the brick below, the freeze-thaw cycles and oversized clay flues common to Selden’s 1960s–1970s housing stock are likely the culprits. We’re familiar with the Cape Cods and ranches off Middle Country Road and the split-levels near Hawkins Path, where crown deterioration follows the same predictable pattern. Chimney Cap & Crown covers our full cap and crown scope.
Crown Repair & Coating
The concrete crown on your Selden chimney takes a beating. Central Suffolk County’s repeated freeze-thaw cycles — plus nor’easters that dump heavy wet snow — cause the crown to spall in large flakes, exposing the clay flue tiles underneath. We grind out the damaged concrete, apply a bonding agent, and rebuild with a proper slope and drip edge to shed water. For crowns with minor cracking but intact structure, we apply DuraFlex crown coating — a flexible, waterproof membrane that bridges hairline cracks and prevents water penetration. Crown coating runs $280–$450; partial rebuild is $450–$780.
Multi-Flue Cap Installation
Most Selden homes built in the 1960s and 1970s have two-flue chimneys: one for the heating appliance, one for the fireplace. After an oil-to-gas conversion, that oversized 8-inch clay flue creates heavy condensate that seeps through cracked crown mortar and stains the exterior brick. A single multi-flue cap protects both flues while allowing proper draft, and it’s essential for homes where the flue sizes no longer match the appliances below. We measure on-site and fabricate caps that fit the exact dimensions of your chimney top — not the adjustable big-box versions that blow off in the first nor’easter. Multi-flue cap installation in Selden runs $420–$890.
Custom Cap Fabrication
Original 1960s decorative caps made of thin sheet metal rust through from Long Island’s marine humidity, leaving flue openings unprotected and allowing chimney swallows to nest inside the oversized clay tile. We fabricate custom caps in copper, stainless steel, and galvanized steel to match your home’s aesthetic and stand up to Selden’s coastal-influenced weather. If you live near Middle Country Road and want to preserve the look of an original copper cap, we can replicate the profile with heavier-gauge material that won’t rot out in five years. Custom caps run $650–$1,400 depending on material and complexity.
My Selden home was built in 1968 and I just switched from oil to gas. Do I need a new chimney cap?
Yes — you likely need a properly sized cap and possibly a flue liner evaluation. Your existing 8-inch clay flue is now drastically oversized for gas exhaust, causing acidic condensate that accelerates mortar joint failure and crown deterioration. We see this pattern repeatedly on Selden’s 1960s ranches, and a multi-flue cap sized to your actual appliance output prevents the water damage that’s already starting inside that oversized flue. Call (888) 975-6389 for an inspection.
Why do hardware store chimney caps keep blowing off my Selden home?
Hardware-store caps are built for universal fit and moderate climates, not for Selden’s wind exposure and ice loads. Ours are measured to your exact flue dimensions, fabricated from heavier gauge metal with reinforced corners, and secured with proper mounting systems — not tension bands that loosen with thermal cycling. The mesh screening is stainless steel, not galvanized, so it won’t rust out from marine humidity. We’ve installed caps through 14 winters on Long Island and know what survives.
Chimney Liner & Rebuild in Selden
Chimney liner replacement and masonry rebuilds in Selden typically run $2,800–$7,500 depending on whether you’re retrofitting a single flue or rebuilding the full stack, and our team usually completes standard liner jobs in one day. If you’re calling from Selden, we’re familiar with your streets — Middle Country Road, Boyle Road, the neighborhoods near Selden Plaza, the 11784 ZIP code area — and we understand the specific headaches these 1960s and 1970s homes throw at chimney systems. The oversized clay flues, the freeze-thaw damage, the acidic condensate from gas conversions — we’ve seen it all, and we don’t recommend work you don’t need. Chimney Liner & Rebuild covers our full relining and reconstruction scope.
Stainless Steel Liner Installation
For Selden’s converted gas systems, a 6-inch DuraFlex stainless steel liner is the fix we install most often. The original 8-inch clay flue in your 1960s Cape Cod or ranch was engineered for oil exhaust temperatures around 600°F; natural gas exhaust runs cooler and wetter, and that oversized flue lets acidic condensate cling to the walls instead of drafting out. We pull a flexible stainless liner through the existing flue, top it with a proper termination cap, and seal the connection at the appliance — typically completed in a single day at $2,800–$4,200.
Flexible Liner Retrofits
Not every Selden chimney runs straight. The split-levels near Hawkins Path and the older ranches with offset flues need a liner that navigates bends without losing draft performance. We use flexible stainless systems that conform to these irregular channels while maintaining the smooth interior surface that resists creosote buildup. For homes where the clay tile is intact but the flue is simply wrong-sized for gas, this is often the most cost-effective path — no masonry tear-out, just a properly sized passage for exhaust. Flexible liner with offset navigation runs $3,200–$4,800.
Partial & Full Rebuilds
When clay tiles are cracked, spalled, or missing sections after fifty-plus winters of Long Island freeze-thaw, patching isn’t a permanent option. We extract the damaged liner where accessible and install a new stainless system that carries its own independent structural integrity. Last winter we handled a partial chimney rebuild on a 1970s ranch off Boyle Road where the original clay tile liner had shattered after repeated freeze-thaw cycles; the homeowner had converted to natural gas two years prior, and the oversized flue was depositing corrosive soot on the interior walls. We installed a 6-inch DuraFlex stainless steel liner and rebuilt the crown for $4,500–$6,800. Full rebuilds from the roofline up run $6,200–$9,500 when structural courses are compromised.
Why does my Selden chimney need a new liner after converting from oil to gas?
The existing 8-inch clay flue in your Selden home was sized for oil exhaust at roughly 600°F; natural gas exhaust is cooler and produces more water vapor, and that oversized flue lets acidic condensate accumulate on the walls instead of drafting properly. When a Selden homeowner converts from oil to gas, the existing 8-inch clay flue is drastically oversized for the new appliance’s cooler exhaust, causing persistent sooting and water damage inside the flue. We’ve relined dozens of these systems on streets off Middle Country Road and Boyle Road — call (888) 975-6389 to assess your flue.
Can you replace just the clay tile liner or do I need a full rebuild?
Individual clay tile replacement is rarely practical in Selden’s aging chimneys because the surrounding mortar is typically deteriorated and accessing specific tiles without damaging adjacent courses is difficult. We usually recommend a stainless steel liner system that installs within the existing flue without requiring full masonry demolition, paired with crown repair or partial rebuild as needed. A full rebuild becomes necessary when structural courses are compromised or multiple flues have failed — Gary will show you exactly what he found and explain why.
Brands We Service in Selden
We install DuraFlex, HeatShield, and Copperfield materials — the brands chimney professionals specify, not the retail alternatives that fail prematurely under coastal exposure. Our supplier relationships with Famco and Olympia Chimney also let us source termination caps and connection hardware matched to Selden’s specific retrofit needs. Most parts are stocked for next-trip availability, so we’re not waiting on shipping while your heating season ticks away.
Pricing for Chimney Cleaning in Selden, NY
| Service | Typical Range in Selden |
|---|---|
| Level 1 Inspection & Sweep | $180 – $250 |
| Level 2 Inspection (with video) | $350 – $550 |
| Creosote Removal (heavy buildup) | $75 – $150 add-on |
| Fireplace Cleaning & Soot Removal | $220 – $340 |
| Mortar Repointing | $1,200 – $2,400 |
| Spalling Brick Repair | $800 – $1,800 |
| Flashing Repair | $450 – $950 |
| Crown Coating (minor cracking) | $280 – $450 |
| Crown Repair (partial rebuild) | $450 – $780 |
| Single Flue Cap Replacement | $180 – $340 |
| Multi-Flue Cap Installation | $420 – $890 |
| Stainless Steel Liner Retrofit | $2,800 – $4,200 |
What pushes Selden prices toward the higher end: steep roof pitch on two-story Cape Cods, heavy creosote or acidic condensate buildup requiring extra labor, and the need for custom brick matching on 1960s-era construction. We quote exact prices before starting work — no surprises, no upsells without camera evidence you can see for yourself. Estimates are always free.
Neighborhoods We Serve in Selden
We work throughout the 11784 ZIP code and surrounding Suffolk County, with regular routes to Selden’s core neighborhoods. Most appointments are scheduled within 48 hours, with priority booking before the October burning season rush.
- Selden Plaza area
- Streets off Middle Country Road
- Boyle Road corridor
- Hawkins Path vicinity
- Coram Road neighborhoods
Service Area — Cities Near Selden
We make regular chimney service runs from our Bridgeport base across central Suffolk County. Homeowners in Selden, NY, Centereach, NY, Coram, NY, Farmingville, NY, Port Jefferson Station, NY, and Terryville, NY all get the same direct service from Gary Murphy — no subcontractor handoffs, no franchise dispatchers. If you’re unsure whether your address falls within our route, call (888) 975-6389 and we’ll confirm.
Serving Selden, NY — Our Local Coverage Area
We’re based nearby and serve all of Selden, NY. The map shows the Selden coverage area; if your address is on it, we can help.
Also serving nearby: Selden, NY, Centereach, NY, Coram, NY, Farmingville, NY, Port Jefferson Station, NY, Terryville, NY.
FAQs About Chimney Cleaning in Selden
Most Selden appointments are scheduled within 48 hours during standard periods, and we prioritize pre-winter booking in September and October before the first nor’easter compresses availability. Emergency calls for active leaks or suspected flue damage get same-week placement when possible. Call (888) 975-6389 to check current openings.
Chimney repair and relining in Selden falls under the Town of Brookhaven building department jurisdiction, and permit requirements depend on the scope — liner replacement typically requires inspection, while routine sweeping does not. We handle permit coordination as part of any rebuild or liner installation project, so you’re not navigating Brookhaven’s office yourself. Ask us during your estimate and we’ll clarify what’s needed for your specific job.
We specialize exclusively in chimney work, and Suffolk County’s 1960s–1970s housing stock — with its oil-to-gas conversion challenges and aging clay flues — generates demand that outpaces local specialist availability. Gary Murphy has built relationships with Selden homeowners over 14 years of regular trips across the Sound, and our 1,234 verified reviews at 4.7 stars reflect that homeowners value the expertise over proximity. We’re not the closest company on paper; we’re the one that shows up with the right diagnosis.
Ready to schedule? Call Sterling Chimney Cleaning at (888) 975-6389 for a free estimate. Gary Murphy handles every Selden assessment personally — 14 years, one trade, and the accountability that comes from having your name on the door.
What happens when you call
- 1A real person answersNo phone trees — talk to a local chimney cleaning pro.
- 2You get an upfront price rangeHonest numbers before anyone is dispatched. No surprises.
- 3We come out and measureLicensed & insured, at a time that suits you — the visit and the quote are both free.
- 4You get the price in writingLine-itemed, yours to keep, and nothing starts until you say go.
What Selden Customers Say
"Showed up when they said they would. That's most of the battle."
— Michelle Bennett"Fireplace had never drawn properly since we moved in. He found the damper was only opening halfway due to a bent linkage and fixed it in ten minutes."
— Craig Delaney"Swept it, capped it, and installed a proper damper. The downdraft smell in the summer that we'd lived with for years is gone."
— Priya Rao