Fast, Reliable Fireplace Services Across Unionport
Fireplace services in Unionport typically run $180-$650 depending on the repair, and most jobs are completed in a single visit with upfront pricing confirmed before we start. We’re Hearthstone Chimney Co., and we’ve been serving Unionport’s 10473 ZIP and surrounding Bronx neighborhoods for over 42 years. Our technicians know the tight rowhouse blocks off Pugsley Avenue and Westchester Avenue, the prewar apartment buildings near Hugh Grant Circle, and the specific chimney problems that come with housing stock built for coal heat and converted through successive fuel changes. When you call (855) 950-3861, a live person answers - 24 hours a day, every day - and we’ll give you a free estimate with no surprises on the bill.
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.
Why Hearthstone Chimney Co. of New York City Is Unionport’s Preferred Fireplace Services Company
Unionport homeowners don’t need a sales pitch. They need someone who shows up when promised, explains what’s actually wrong in plain English, and fixes it without callbacks. That’s what we’ve done here since 1984.
Our Fireplace Services team has worked on hundreds of Unionport chimneys - from the attached brick row houses near Pugsley Avenue to the small multi-family buildings along Westchester Avenue. We document every inspection with photos you can see and a written verdict you can understand. No jargon, no scare tactics.
Calls are answered by a live person 24/7 - not a voicemail system, not a callback queue. Our technicians are background-checked and uniformed, and most repairs are completed in a single visit. The price we quote is the price on the invoice. Our 90-Day Done Right Promise covers every job in writing: if it’s not right, we come back and make it right, no arguing, no paperwork games.
We’ve earned our reputation in Unionport one repair at a time. Homeowners here remember who showed up during a January freeze-up and who didn’t.
Our Fireplace Services in Unionport
Gas Fireplace Service
Unionport’s gas conversions are our most common call. Many 1920s-1950s buildings switched from coal to oil to gas without properly resizing or relining the flue. The result: oversized, cracked clay tile liners that can’t maintain proper draft for modern gas appliances. We inspect with Level-2 camera equipment, document the liner condition with photos, and install correctly sized stainless steel liners from DuraFlex when needed. Most gas fireplace service calls in Unionport run $180-$340 for cleaning and inspection, or $1,200-$2,800 for liner replacement depending on flue height and access.

Wood Burning Fireplace
Original wood-burning fireplaces in Unionport row houses often have deteriorated fireboxes, stuck or missing dampers, and flues compromised by decades of mixed-fuel use. We rebuild fireboxes with HeatShield refractory materials, repair or replace dampers, and verify proper draft before the first fire of the season. A typical wood-burning fireplace inspection and sweep in Unionport costs $89-$180; firebox repairs range from $450-$1,200 depending on extent.

Fireplace Insert
For Unionport homeowners who want efficient heat without the draft problems of an open fireplace, inserts are a practical solution. We size inserts to your existing flue or install a new stainless steel liner to match the appliance specs. This is especially important in Unionport’s older chimneys, where the original flue was never designed for the lower exhaust temperatures of modern inserts. Fireplace insert installation with necessary liner work typically runs $2,800-$4,500 in Unionport.

Damper Repair
Stuck, rusted, or missing dampers are nearly universal in Unionport’s original chimneys. A failed damper wastes heat, invites drafts, and can allow smoke backdrafting in shared flue configurations. We repair or replace with top-sealing dampers from Gelco or Famco that seal tighter and operate reliably. Damper repair in Unionport generally costs $280-$650; top-sealing damper installation runs $450-$850.

Trusted Brands We Service in Unionport
We stock parts and materials from Olympia Chimney, Gelco, and Famco - brands that hold up in Unionport’s demanding conditions. When a damper fails on a Saturday evening or a crown needs patching before the next freeze, we don’t wait for a warehouse shipment. Our trucks carry the components to complete most Unionport repairs in one trip. No builder-grade substitutes, no “we’ll come back next week.” The materials we use are the same ones specified by chimney professionals nationwide because they last.
Common Fireplace Services Problems We See in Unionport Homes
- Cracked coal-era clay tile liners that cannot handle modern gas appliance temperatures. The original liners in Unionport’s 1920s-1950s housing were sized for coal combustion at much higher flue temperatures. When gas boilers or fireplaces were installed, the cooler exhaust condensed moisture and acids inside the flue, accelerating deterioration and causing dangerous backdrafting conditions.
- Spalled brick crowns and eroded mortar joints from repeated freeze-thaw cycles. Unionport’s exposure to Westchester Creek adds ambient moisture that worsens the damage. We see this every spring - bricks flaking, mortar turning to powder, water finding its way into adjoining walls.
- Shared party-wall flues that allow a single failed liner to affect multiple units. On the attached rowhouse blocks near Pugsley Avenue and Westchester Avenue, one chimney stack often serves two or three separate boilers or fireplaces. When one liner deteriorates, smoke and carbon monoxide can migrate into neighboring units through common masonry cracks.
- Undersized or missing chimney caps that let rain, debris, and animals enter flues already compromised by age. In Unionport’s dense housing, a blocked or water-damaged flue in one unit can create pressure imbalances affecting the whole stack.
Pricing for Fireplace Services in Unionport, NY
We believe in upfront pricing because nobody likes surprises on the bill. Here are typical ranges for fireplace services we perform in Unionport:
| Seasonal tune-up and inspection | $89 |
| Gas fireplace cleaning and safety check | $180-$340 |
| Damper repair or replacement | $280-$850 |
| Firebox repair (minor to moderate) | $450-$1,200 |
| Fireplace insert installation (with liner) | $2,800-$4,500 |
| Stainless steel liner replacement | $1,200-$2,800 |
What affects your specific cost: flue height and accessibility, whether the chimney is shared with adjoining units, extent of masonry deterioration, and whether NYC DOB documentation is required for multi-owner coordination. We inspect first, explain what we found with photos, and give you a written estimate before any work begins. Call (855) 950-3861 for your free estimate.
We Also Serve Cities Near Unionport
Our technicians work throughout the eastern Bronx, including Unionport and neighboring Hunts Point, Morris Park, Parkchester, and The Bronx at large. Same live-answer phone, same 90-Day Done Right Promise, same upfront pricing - wherever your chimney needs attention.
Serving Unionport, NY - Our Local Coverage Area
We’re based in the Unionport 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 - Fireplace Services in Unionport
Yes - if your chimney was built for coal and converted to gas without relining, the original clay tile liner is almost certainly cracked, acidified, or undersized for your current appliance. In Unionport’s 10473 ZIP, this describes the majority of chimneys we inspect. The cooler exhaust temperatures of gas appliances cause condensation inside oversized coal flues, which deteriorates mortar and creates backdrafting hazards. We perform Level-2 camera inspections that document liner condition with photos you can see, followed by a plain-English verdict on whether repair or relining is needed. Call (855) 950-3861 to schedule - estimates are free.

Shared-flue repairs require coordination, but cost responsibility depends on what’s failing and which unit it serves. NYC DOB rules govern these configurations, and we document the specific flue serving each appliance before quoting any work. On Pugsley Avenue, we serviced a 1930s row house where the original coal-era clay flue had been reused for a gas boiler. The liner was cracked from freeze-thaw cycles and undersized for the new appliance, causing backdrafting. We installed a DuraFlex stainless steel liner sized to modern specs, coordinating with the adjoining unit’s owner per NYC DOB rules. If your liner is the one failing, you pay for your liner replacement. If common masonry (crown, exterior brick, cap) is deteriorating, costs are typically shared. We help navigate this with clear documentation and written estimates for all parties. Call (855) 950-3861 and we’ll explain your specific situation.

Yes, conversion is common and practical, but the chimney must be evaluated first. Unionport’s older flues were rarely built for gas appliance temperatures, and an unlined or damaged flue will not vent properly. We inspect with camera equipment, verify liner condition and sizing, then install either a direct-vent gas insert with its own venting or a properly lined system for a gas log set. Conversion costs in Unionport typically run $2,200-$4,800 depending on liner needs and appliance choice. Call (855) 950-3861 for a free evaluation of your specific chimney.

The creek introduces above-average ambient moisture that accelerates several common problems. Freeze-thaw damage worsens because masonry absorbs more water before winter. Efflorescence - white mineral deposits on brick - is more prevalent. Interior flue condensation increases, especially in undersized gas-converted flues running cooler than their original design temperature. We account for this in our inspections and material choices, using professional-grade crown sealants and liners rated for high-moisture environments. If you live near the creek and haven’t had your chimney inspected in two or more years, schedule one. Call (855) 950-3861 - estimates are free.

Very common. New York City’s repeated freeze-thaw cycles each winter aggressively spall Unionport’s aging brick chimney crowns, and the neighborhood’s moisture exposure from Westchester Creek accelerates the damage. We see crumbling, flaking crowns on most prewar buildings we inspect. Left unaddressed, water penetrates the crown and damages the flue liner and interior masonry. Crown repair or rebuilding typically costs $650-$1,400 in Unionport depending on size and access. We use professional-grade crown formulations designed for our climate. Call (855) 950-3861 for an inspection and written estimate.
Ready to get your Unionport fireplace or chimney inspected? Call Hearthstone Chimney Co. at (855) 950-3861. A live person will answer - 24 hours a day, 7 days a week - and we’ll schedule your free estimate at a time that works for you. Most repairs are completed in a single visit, and every job is backed by our 90-Day Done Right Promise in writing.
Written by Frank Calucci, Owner at Hearthstone Chimney Co., serving Unionport and the Bronx since 1984.
