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.
Fast, Reliable Chimney Repair Across Pen Argyl
Chimney repair in Pen Argyl typically runs from $450 for targeted mortar repointing up to $4,500 for partial rebuilding of a century-old stack, with most jobs completed in a single visit after our Level-2 camera inspection. If you live in one of the old quarry-worker cottages or row homes that make up so much of Pen Argyl’s housing stock, your chimney may be a century old and unlined, with flashing that was mortared directly into the brick rather than stepped properly. That’s not a scare tactic - it’s the construction reality we document on camera every week in the Slate Belt.
We answer our phones with a live person 24 hours a day, 7 days a week at (610) 609-7634. Scheduling and dispatch are coordinated from our Philadelphia office, and our crews serve Pen Argyl directly - we know the difference between a home off West Pennsylvania Avenue near the old quarry works and one up toward Blue Mountain, and we know the elevation and exposure change what your chimney faces each winter.
Why Hearthstone Chimney Co. Is Pen Argyl’s Preferred Chimney Repair Company
We’ve been answering the phone with a live person for over 42 years. Not a voicemail tree. Not a callback queue. A real person, every hour of every day. That matters when you’re staring at a crack in your crown and wondering if it’s urgent.
Our technicians are background-checked, uniformed, and trained to work on the fragile historic slate roofs that cover so many Pen Argyl homes - a specialized skill you won’t find with every operator. Most jobs are completed in a single visit, with no-hassle upfront pricing: the number on the estimate is the number on the invoice.
Every inspection ends with photos you can see and a plain-English verdict. Nothing is recommended without camera evidence. If we say your chimney needs rebuilding, you’ll see the spalled brick, the hollowed mortar, or the unlined flue sitting too close to framing before any work is booked. Our Chimney Repair team documents like engineers and explains like craftsmen.
All work is backed by our 90-Day Done Right Promise - in writing, no arguing. If it’s not right, we make it right. That’s the Keystone Standard we’ve operated under since 1984.
Our Chimney Repair Services in Pen Argyl
Chimney Rebuilding
Pen Argyl’s stock of late-1800s to early-1900s quarry-worker housing means we rebuild more chimneys here than in most Slate Belt towns. Single-wythe brick masonry, never relined, with a century of freeze-thaw cycles at 900-plus feet elevation - the math catches up. We rebuild with the original architecture in mind, using professional-grade materials from Olympia Chimney and Copperfield, and we never start demolition until you’ve seen the camera footage showing why it’s necessary.

Flashing Repair
This is where Pen Argyl’s slate-roof heritage creates a repair category all its own. On the older blocks near the former quarry operations, original flashing was often set directly into mortar joints rather than stepped into the brick - a period technique that, after 100-plus years, allows water to track silently behind the masonry. We’ve found chimneys that look plumb and straight from the ground but are hollowed out behind the roofline. Our repair decisions on these blocks start at the roof, not at the firebox. We reflashed a worker cottage off West Pennsylvania Avenue last season: pulled the original mortared-in flashing, found spalled and soft brick behind it, rebuilt the crown with Gelco mortar, and stepped new Copperfield components properly into the brick. The homeowner had the camera footage on file before we recommended any additional work.

Spalling Brick Repair
Pen Argyl’s elevation on the south face of Blue Mountain means more aggressive northwest wind channeling and more freeze-thaw cycles per winter than the lower Lehigh Valley floor. Water gets into open mortar joints, freezes, and pushes the face off the brick from the inside out. We cut out spalled units, match replacement brick for color and hardness, and repoint with mortar formulated for the local climate - not a quick surface patch that’ll fail by March.

Chimney Waterproofing
Waterproofing an older Pen Argyl chimney without first addressing the underlying masonry condition is painting over rot. We waterproof only after repointing or rebuilding is sound, using vapor-permeable treatments that let the brick breathe while shedding rain. On slate-roofed homes, we’re especially careful around the chimney-roof interface - one slip with a ladder or tool, and you’re replacing historic slate that can’t be matched.

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.
Trusted Brands We Service in Pen Argyl
We work exclusively with professional-grade materials - no builder-grade substitutes. For Pen Argyl’s older chimneys, that means DuraFlex stainless liners when relining is needed, HeatShield cerfractory flue sealant for resurfacing sound but cracked clay tile, and Gelco and Olympia Chimney components for crowns, caps, and structural repairs. We stock the common sizes locally, so most Pen Argyl customers aren’t waiting on special orders. When we recommend a brand, it’s because we’ve installed it on a chimney like yours and watched it hold up through a Slate Belt winter.
Common Chimney Repair Problems We See in Pen Argyl Homes
- Original flashing mortared into brick joints lets water track behind the masonry. Chimneys look structurally sound until the mortar goes soft and the stack starts shifting. We find this routinely on the older blocks near the former quarry operations.
- Freeze-thaw cycles at Pen Argyl’s elevation crack crowns and open mortar joints. Water wicks into single-wythe brick and accelerates spalling from the inside out. A cracked crown in January becomes a rebuild by October if it’s ignored.
- Older stove and furnace retrofits vented into unlined or cracked clay-tile flues. Backdraft and creosote buildup result, and a simple sweep cannot fix it - the flue itself needs relining or rebuilding. We see this in homes where a modern appliance was connected to a stack never designed for it.
- Chronic downdraft and backdraft complaints driven by Blue Mountain exposure. The same elevation and wind channeling that accelerate masonry decay also create pressure differentials that push smoke into the house. Sometimes the fix is a cap, sometimes it’s relining, sometimes it’s rebuilding - we determine which with a camera, not a guess.
Pricing for Chimney Repair in Pen Argyl, PA
Here’s what chimney repair costs in the Pen Argyl market, based on jobs we’ve completed in the Slate Belt:
| Service | Typical Range in Pen Argyl |
|---|---|
| Mortar repointing (tuckpointing) | $450 - $1,200 |
| Spalling brick repair (localized) | $600 - $1,800 |
| Crown rebuild or pour | $800 - $2,200 |
| Flashing repair / replacement | $700 - $1,900 |
| Partial chimney rebuilding | $2,500 - $4,500 |
| Full chimney rebuilding | $4,500 - $8,000+ |
What moves you up or down within these ranges: accessibility (steep slate roofs add labor), extent of hidden damage we find after opening the shoulder, and whether the flue needs relining in addition to masonry work. We give you the full number before any work starts - no surprises on the bill. Estimates are free, and we bring the camera to every appointment. Call (610) 609-7634 for an exact quote on your chimney.
We Also Serve Cities Near Pen Argyl
Our crews work throughout the Slate Belt and surrounding communities. If you’re in Pen Argyl proper, Wind Gap, Bangor, Nazareth, or Stroudsburg, the same live-answer phone line and same camera-documented inspection process applies. We know the difference between valley-floor conditions and ridge-line exposure, and we schedule accordingly.
Serving Pen Argyl, PA - Our Local Coverage Area
We’re based in the Pen Argyl 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 Pen Argyl
A crew without slate experience can crack historic roofing that can’t be matched. Our technicians are trained to access and work around fragile historic slate without cracking it - a specialized skill we use regularly in Pen Argyl, where slate roofing is far more prevalent than in neighboring Easton or Stroudsburg. We use padded ladder stands, distribute weight across multiple points, and never kneel or step directly on slate. If your repair requires removing any roofing material, we discuss it with you first and document the existing condition on camera. Call (610) 609-7634 to schedule - we’ll note your slate roof when you book.
The camera tells the story we can’t see from the ground. Repointing fixes mortar joints; rebuilding addresses structural compromise - spalled brick, shifted courses, or hollowed masonry behind the roofline. On Pen Argyl’s century-old chimneys, we often find that what looks like a pointing job from the yard is actually a stack where water has been tracking through mortared-in flashing for decades. We show you the footage. If the brick behind the spall is sound and the structure is plumb, we repoint. If the wythe is compromised or the flue is unlined and adjacent to framing, we explain why rebuilding is the safe path. Either way, you see the evidence before any work is authorized.
Yes, and it’s one of the most common hidden failure modes we find in Pen Argyl’s quarry-worker housing. Mortar-set flashing was standard construction a century ago, but mortar is porous. After decades of wet-dry cycles, water tracks behind the flashing and hollows out the brick from the inside - often with no visible exterior cracking until the stack starts shifting. We inspect the shoulder and roofline with the camera before recommending any repair scope. If your flashing is mortared in, we almost always recommend removing it, assessing the hidden brick condition, and reflashing with modern stepped-in components. The repair decision starts at the roof, not the firebox.
Shared venting into a cracked or unlined clay-tile flue is a carbon monoxide risk and a code violation under current standards. We can sometimes repair sound clay tile with HeatShield cerfractory sealant if the damage is limited to minor cracking and the tile is structurally intact. More often on Pen Argyl’s older housing stock, we find the tile is fractured, displaced, or missing entirely - or the flue was never lined to begin with. In those cases, we recommend a DuraFlex stainless liner sized for the combined appliance load. We show you the camera footage of the flue interior, explain the BTU math, and let you decide. No liner work is sold without evidence you can see.
Pen Argyl sits at roughly 900-1,000 feet elevation on the south face of Blue Mountain, and that exposure creates chronic downdraft conditions that valley-floor homes don’t face. Northwest winds channel across the ridge and pressurize the chimney top, while the temperature differential between your heated flue and the cold air mass pushes smoke backward. Older, unlined flues compound the problem - they’re colder inside, so draft establishes more slowly. Sometimes the fix is a properly engineered cap or draft inducer. Sometimes it’s relining to warm the flue faster. We diagnose with a smoke test and camera inspection, not by guessing. Call (610) 609-7634 and we’ll sort out whether it’s a cap, a liner, or a rebuild that’s needed.
Ready to see what’s actually going on inside your chimney? Call Hearthstone Chimney Co. at (610) 609-7634 for a free estimate. A live person will answer, we’ll schedule at your convenience, and you’ll get photos you can see with a plain-English verdict before any work is discussed. Done right - and we stand behind it.
Written by Russell Haines, Owner at Hearthstone Chimney Co., serving Pen Argyl and the Slate Belt since 1984.





Before
After
Before
After
Before
After