Fast, Reliable Fireplace Services Across Dundalk
Your fireplace should warm the room, not worry you. In Dundalk, where most homes were built for Bethlehem Steel and Sparrows Point workers between the 1920s and 1950s, the masonry fireplaces and chimneys are now 70 to 100 years old. Many were converted from coal to gas or oil decades ago without proper permits or liner upgrades, and the salt-laden air off Back River and Bear Creek has been eating at the mortar joints ever since. We answer calls from Dundalk homeowners daily about smoky drafts, dampers that won’t seal, and inserts that never should have been installed in unlined flues. Our technicians are on the road across Baltimore County every morning, and we can usually reach a Dundalk address within the hour. Call (844) 803-1545 and you’ll speak to a live person, 24 hours a day.
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.
Why Hearthstone Chimney Co. Is Dundalk’s Preferred Fireplace Services Company
We’ve been serving communities like Dundalk for over 42 years, since 1984. That means we were already in business when many of these chimneys were being improperly converted the first time around, and we’ve spent decades fixing the consequences.
Dundalk homeowners know our name because we document every inspection with photos and a plain-English verdict. You’ll see what we see. No jargon, no scare tactics, just the condition of your firebox, damper, and flue explained the way a craftsman explains his work to a neighbor.
Our phones are answered by a live person every hour of every day, not a voicemail tree or callback app. When you call (844) 803-1545, someone who can dispatch a technician picks up.
Most jobs are completed in a single visit. Our technicians are background-checked, uniformed, and carry the professional-grade materials and tools to handle gas fireplace service, wood burning fireplace repair, damper work, and firebox restoration without running back to a warehouse. We also handle Chimney Cap & Crown in Dundalk and Chimney Liner & Rebuild in Dundalk when the problem runs deeper than the fireplace itself.
Our Fireplace Services in Dundalk
Gas Fireplace Service
Gas fireplaces in Dundalk present a specific problem. The original coal-era flues in these worker homes are almost always oversized for modern gas appliances, which means combustion gases cool too quickly, condense on the flue walls, and accelerate corrosion. We see this pattern constantly in neighborhoods like Graceland Park and Saint Helena, where mid-century conversions were done on the cheap as Bethlehem Steel wound down. Our gas fireplace service includes burner inspection, pilot and thermocouple testing, gas pressure verification, and a written assessment of whether your flue is properly sized and lined. If it’s not, we’ll tell you plainly and explain exactly what needs to happen. A typical gas fireplace service in Dundalk runs $189-$279.

Wood Burning Fireplace
Nothing beats a real wood fire on a January night in Dundalk, but these old masonry fireboxes weren’t built for the EPA-certified inserts many homeowners have added, and the flues were never designed for the creosote loads of modern airtight stoves. We inspect the firebox for cracked or missing refractory panels, check the throat damper for proper operation, and evaluate whether your chimney can safely handle what you’re burning. In the 21222 ZIP code, we regularly find fireboxes with deteriorated parging and missing mortar that have been patched with ordinary Portland cement, which can’t take the heat and will spall within a season. Proper repair with HeatShield or similar refractory materials restores the firebox to safe working condition. Wood burning fireplace repair in Dundalk typically costs $340-$780 depending on the extent of refractory damage.

Fireplace Insert
Inserts are popular in Dundalk’s smaller brick homes because they add efficiency without requiring a full fireplace rebuild. The problem is that many were installed by homeowners or handymen who never pulled a permit, never installed a proper stainless liner, and never verified that the insert was listed for the flue it was being shoved into. We remove and reinstall inserts correctly, connecting them to a properly sized DuraFlex or similar stainless liner that runs the full height of the chimney. This is not optional. An unlined insert in a coal-era flue is a carbon monoxide risk and a house fire waiting to happen. Fireplace insert installation or reinstallation in Dundalk generally runs $1,890-$3,400 including liner and proper connection.

Damper Repair
A throat damper that won’t open fully, won’t close tightly, or has rusted through is one of the most common calls we get from Dundalk homeowners. The salt humidity off Bear Creek corrodes steel dampers faster than inland Maryland, and many of these dampers are original to homes built in the 1930s and 1940s. A stuck open damper wastes heated air all winter. A stuck closed damper sends smoke into your living room. We repair or replace throat dampers and install top-sealing dampers when the throat damper is beyond saving. Most damper repairs in Dundalk are completed in a single visit and run $240-$450. If you’re also losing heat up the chimney between fires, ask us about a top-sealing damper with an energy-efficient seal.

Trusted Brands We Service in Dundalk
We don’t use builder-grade substitutes. For fireplace repairs and installations in Dundalk, we work with professional-grade materials from Famco, Copperfield, and DuraFlex, the same brands specified by chimney professionals nationwide. We keep common parts and liner components stocked for the Baltimore County market, which means most repairs don’t involve a two-week wait for shipping. When we quote a job, the materials are already accounted for. The number on your estimate is the number on your invoice.
Common Fireplace Services Problems We See in Dundalk Homes
- Condensation-damaged flues from gas conversions. The oversized coal flues in Dundalk’s worker housing were never meant for the cool, moist exhaust of modern gas appliances. We regularly pull out flue tiles that have spalled and crumbled from decades of acidic condensation, especially in homes near the water where salt humidity accelerates the damage.
- Improper insert installations without liners. Technicians working Dundalk find this pattern constantly: a gas or wood insert dropped into a fireplace with no stainless liner, no permit, and no combustion-air provision. The insert overheats, the flue deteriorates, and the homeowner smells smoke or gets headaches from backdrafting.
- Firebox parging failure from age and heat cycling. Seventy to ninety years of fires have taken their toll on the refractory mortar behind many Dundalk fireboxes. We see exposed brick, missing parging, and cracks that reach through to the chimney structure, all of which can allow heat transfer to combustible framing.
- Corroded dampers from salt air exposure. Dundalk’s position along Back River and Bear Creek means chimneys get more salt spray than inland communities like Rosedale or Rossville. Steel throat dampers rust, bind, and eventually fail. Top-sealing dampers with stainless construction hold up better in this environment.
Pricing for Fireplace Services in Dundalk, MD
We believe in no-hassle upfront pricing. The number we give you is the number you pay.
| Service | Typical Range in Dundalk |
|---|---|
| Gas fireplace service and inspection | $189 - $279 |
| Wood burning fireplace repair (refractory/parging) | $340 - $780 |
| Fireplace insert with stainless liner installation | $1,890 - $3,400 |
| Damper repair or replacement | $240 - $450 |
| Firebox repair (minor crack sealing) | $280 - $520 |
| Seasonal tune-up (standing offer) | $89 |
What moves the price? Extent of refractory damage, whether a liner is already present and properly sized, accessibility of the damper mechanism, and whether the firebox requires partial rebuilding versus surface repair. We don’t guess. Our Level-2 camera inspection gives you photos you can see and a plain-English verdict before any work begins. Estimates are free. Call (844) 803-1545 for an exact quote on your specific fireplace.
Standing offers for Dundalk homeowners: $50 off any repair over $250, free second opinion on any written estimate from another company, our $89 seasonal tune-up, and a permanent 5% senior and veteran discount.
We Also Serve Cities Near Dundalk
Our Fireplace Services in Dundalk team covers the full 21222 ZIP and surrounding communities. We regularly work in Dundalk itself plus Essex, Edgemere, Rosedale, and Rossville. The same technician who knows the salt-air damage patterns on Bear Creek chimneys understands the slightly different conditions a few miles inland. Wherever you are in eastern Baltimore County, the same standards apply: photos you can see, a plain-English verdict, and the 90-Day Done Right Promise in writing.
Serving Dundalk, MD - Our Local Coverage Area
We’re based in the Dundalk 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 Dundalk
We can usually reach any Dundalk address within an hour during normal business hours, and we offer same-day emergency service for smoking fireplaces, gas leaks, or suspected carbon monoxide issues. Our technicians start from Baltimore County routes every morning, and Dundalk is a regular stop. Call (844) 803-1545 for the next available appointment.

Yes. We work throughout the 21222 ZIP, from Graceland Park and Saint Helena to the neighborhoods along Bear Creek and Back River. The salt-air exposure near the water actually makes our inspections more critical there, not less. We also handle Chimney Cap & Crown in Dundalk for homes that need protection from that same salt spray.

Yes. Our phones are answered by a live person 24 hours a day, 7 days a week. If you have a smoking fireplace, a gas odor, or a carbon monoxide alarm sounding, call (844) 803-1545 and we will dispatch a technician. For non-emergencies, we schedule at your convenience, including Saturday appointments.

Not from us. Our pricing is consistent across eastern Baltimore County. However, Dundalk homes often require more extensive work than newer suburbs because of the age of the chimneys and the frequency of unpermitted conversions. A damper repair costs the same in Dundalk as in Rosedale, but a Dundalk home is more likely to also need liner work or firebox restoration. Our free estimate will give you the exact number for your situation.

Every job is covered by our 90-Day Done Right Promise, backed in writing with no paperwork and no arguing. If it’s not right, we come back and make it right. This applies to all fireplace services in Dundalk, from gas burner adjustments to full insert installations with stainless liner. For liner installations using DuraFlex or similar professional-grade materials, manufacturer warranties also apply. Call (844) 803-1545 to discuss the specific coverage for your project.
Ready to get your fireplace working safely and efficiently? Call (844) 803-1545 for a free estimate. A live person will answer, day or night, and we’ll schedule a time that works for you. Most repairs are completed in a single visit, and every job comes with our 90-Day Done Right Promise in writing.
Written by Russell Haines, Owner at Hearthstone Chimney Co., serving Dundalk and eastern Baltimore County since 1984.
