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 Cap & Crown Across Montgomery Village
Chimney cap and crown repair in Montgomery Village typically runs $280-$890 depending on whether you’re coating a worn crown or replacing a failed one entirely, and most jobs are completed in a single visit with the technician still on site. If you live in the Kettler-era townhomes along Montgomery Village Avenue or the garden courts nearby, your chimney stack is likely 40-55 years old and sharing a chase with a neighbor - a configuration that demands camera documentation before any work is quoted. We’re Hearthstone Chimney Co., and our Chimney Cap & Crown in Montgomery Village crews know these stacks cold: the shared flues, the soft Type N mortar, the way moisture from Lake Whetstone and the retention ponds settles into crowns that were never designed to last this long. Call (301) 719-5236 - a live person answers, 24 hours a day.
Why Hearthstone Chimney Co. Is Montgomery Village’s Preferred Chimney Cap & Crown Company
We’ve been answering the phone with a live person for over 42 years, and that matters in Montgomery Village, where homeowners remember the contractor who never called back. Our dispatch and scheduling is coordinated from our Washington, DC office, but our crews serve Montgomery Village locally and carry the parts to finish most jobs in one trip.
Our 90-Day Done Right Promise is backed in writing with no arguing - if it’s not right, we come back. No paperwork to file, no runaround. That’s the Keystone Standard: Krafted right, Every time, Your home first, Standing behind it.
Every recommendation starts with a Level-2 camera inspection. You see the photos. We give you a plain-English verdict. Nothing is sold on a hunch or a scare tactic, and if your flue is clean, we say so. We’ve traced too many shared stacks in the courts off Stedwick Road and Midcounty Highway to guess at what’s happening inside your chimney, which is why we start with our Chimney Cleaning & Sweep in Montgomery Village.
Our technicians are background-checked, uniformed, and trained to document like engineers and explain like craftsmen. The number on your upfront estimate is the number on your invoice. A square deal: no surprises on the bill.
Our Chimney Cap & Crown Services in Montgomery Village
Cap Installation
New cap installation in Montgomery Village runs $340-$620 for a standard single-flue stainless unit, or $580-$950 for a multi-flue cap covering a shared townhouse stack. The Kettler Brothers built most of this community with clay-tile flues venting into open chimney tops - no cap at all, or a rusted galvanized hood long since perforated. We install Gelco and Famco caps with proper spark arrestors and animal screening, sized to your flue count and chase width. On a court off Montgomery Village Avenue last season, we fitted an Olympia Chimney multi-flue cap over a shared two-flue stack where squirrels had been nesting in the open flue for two winters. The neighbors split the cost. Done right - and we stand behind it.

Cap Replacement
Cap replacement in Montgomery Village typically costs $280-$540 when the existing cap is corroded, improperly sized, or missing its mesh entirely. Many of the original galvanized caps from the 1970s and 1980s have rusted through at the seams, leaving the flue open to rain, leaves, and the starlings that nest in the eaves of townhouse roofs. We remove the old unit, inspect the flue tile and crown condition beneath it, and install a replacement that actually fits. If your crown is spalled underneath, we’ll show you the photo and quote the coating or repair before we leave. No bait-and-switch. Photos you can see, a plain-English verdict.

Crown Repair
Crown repair in Montgomery Village ranges from $450 for targeted mortar rebuilding at the drip edge to $890 for a full crown pour when the original Type N mortar has washed out across the entire surface. The freeze-thaw cycling here is brutal on 1960s-70s construction: cold snaps in January and February drop below freezing, thaws arrive by afternoon, and water trapped in porous mortar expands and contracts until the crown cracks and spalls. The lakes and retention ponds around Montgomery Village - Lake Whetstone, Lake Marion, the ponds along Watkins Mill Road - keep ground-level humidity elevated year-round, so moisture infiltration at the crown and flashing is worse here than in drier parts of Montgomery County. We rebuild with proper crown mix, slope it for drainage, and extend the drip edge past the chimney face so water sheds clear.

Crown Coating
Crown coating in Montgomery Village runs $280-$420 and is our most common cap-and-crown service for homeowners who caught the problem early. If your crown has hairline cracks, minor spalling at the edges, or surface erosion but the structural base is sound, we clean the surface, apply a professional-grade flexible coating, and seal it against further moisture intrusion. This is not a substitute for a failed crown - we run the camera first, check the flue beneath, and only coat when the substrate will hold. For many of the 1970s colonials near Goshen Road and the townhomes along Stedwick Road, coating buys another 8-12 years before a full rebuild is necessary. We’ll tell you straight which category you’re in.

Multi-Flue Cap
Multi-flue cap installation in Montgomery Village costs $580-$950 and is essential for the shared chimney stacks common in the Kettler-era townhouse courts. A single cap covers two or more flues with one integrated hood, eliminating the gaps between separate caps where water and debris collect. We size the unit to your chase dimensions - width, height, and flue spacing - and fabricate from stainless steel or copper depending on your preference and budget. The multi-flue cap also solves the neighbor problem: one unit, one installation, one warranty, no disputes about whose cap is leaking into whose flue.

Custom Cap
Custom cap fabrication in Montgomery Village starts at $720 and is reserved for non-standard chase dimensions, historic preservation requirements, or homeowner preference for copper or architectural-grade finishes. We measure on site, fabricate to order, and install with the same single-visit efficiency as our standard caps. If your townhouse association has aesthetic guidelines or your colonial near Whetstone Drive needs a cap that matches existing roof hardware, we can accommodate.

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 Montgomery Village
We work exclusively with professional-grade materials - no builder-grade substitutes that fail in three seasons. For cap and crown work in Montgomery Village, we stock and install Gelco stainless caps, Olympia Chimney multi-flue systems, and Famco venting accessories from our local inventory, which means most replacements happen same-day without waiting on shipping. For crown coatings and refractory repairs, we specify HeatShield and Copperfield products rated for the freeze-thaw abuse these chimneys take. The parts matter. So does having them on the truck when we pull into your court off Montgomery Village Avenue.
Common Chimney Cap & Crown Problems We See in Montgomery Village Homes
- Original single-wythe clay-tile flues crack along the mortar joints from decades of freeze-thaw cycling in Montgomery Village’s Piedmont climate. Moisture reaches the smoke chamber, efflorescence appears on the firebox brick, and the damage is invisible from the roof or hearth until a camera documents it.
- 1960s-70s Type N mortar crowns wash out and spall at the drip edge, so water runs behind the flashing and into shared townhouse chases instead of shedding off the cap. We see this constantly in the courts between Montgomery Village Avenue and Midcounty Highway, where one failed crown can track moisture into an adjacent unit’s flue.
- Appliances vented into flues never sized for them - furnaces or water heaters tied into original fireplace stacks - drop draft and build first-degree creosote fast. This gets misdiagnosed as a cleaning problem when it’s actually a venting configuration problem that starts at the cap and crown.
- Missing or perforated animal screens let squirrels, starlings, and raccoons nest in open flues, blocking draft and introducing combustible debris. In the dense townhouse sections, animals travel the shared rooflines from unit to unit, so one missing screen affects the whole stack.
Pricing for Chimney Cap & Crown in Montgomery Village, MD
| Service | Typical Range in Montgomery Village |
|---|---|
| Crown Coating | $280 - $420 |
| Cap Replacement (single flue) | $280 - $540 |
| Cap Installation (new, single flue) | $340 - $620 |
| Crown Repair (partial rebuild) | $450 - $650 |
| Full Crown Replacement | $720 - $890 |
| Multi-Flue Cap Installation | $580 - $950 |
| Custom Cap (fabricated) | $720 and up |
What moves the number? Crown size and accessibility, flue count, whether the chase is shared with a neighbor, and the condition of the underlying flue tile. We inspect with a camera before quoting, so you know exactly what you’re paying for and why. Estimates are free. Call (301) 719-5236 for an exact quote on your chimney.
Standing offers: $50 off any repair over $250, free second opinion on any written estimate, $89 seasonal tune-up, and a permanent 5% senior and veteran discount.
We Also Serve Cities Near Montgomery Village
Our crews work throughout upper Montgomery County, including Montgomery Village, Gaithersburg, Germantown, Clarksburg, and Rockville. Whether you’re in a Kettler-era townhouse or a newer build near the ICC, our Chimney Cap & Crown team carries the same parts, the same camera, and the same written promise.
Serving Montgomery Village, MD - Our Local Coverage Area
We’re based in the Montgomery Village area and know this community well, offering Montgomery Village Fireplace Services to homeowners here. Use the map below to see our service coverage - if you’re nearby, we can almost certainly help.
FAQs - Chimney Cap & Crown in Montgomery Village
Shared-stack crown repairs are typically split between units, but only after a camera inspection traces which flue serves which firebox and documents where the water is tracking. We show both homeowners the footage, explain what failed and why, and quote the repair to the affected parties. In most cases, a multi-flue cap and crown coating protects both flues for one shared cost. Call (301) 719-5236 and we’ll coordinate the inspection - estimates are free.
Yes - a Level-2 camera inspection is non-negotiable on chimneys this age. The original clay tiles crack along mortar joints from decades of freeze-thaw, and spalled debris collects on the smoke chamber shelf where a brush won’t reach it. Cleaning a cracked flue without documenting it first risks dislodging a tile into the flue or missing a blockage entirely. We run the camera, show you the footage, and clean only when the flue is structurally sound enough to brush safely. Call (301) 719-5236 to schedule - estimates are free.
Yes - a multi-flue cap is specifically designed for this configuration and is our recommended solution for the shared stacks common in Montgomery Village’s Kettler-era townhouses. One hood covers both flues with integrated spark arrestors and animal screening, eliminating the gap between separate caps where water pools and debris collects. We measure your chase dimensions on site and fabricate the cap to fit. Most installations complete in under two hours. Call (301) 719-5236 for an exact quote - estimates are free.
Crown coating is sufficient when the crown has hairline cracks or surface erosion but the structural base is sound and the reinforcement mesh is intact. If the crown is spalled more than half an inch deep, cracked through to the flue tile, or the mortar is washing out at the drip edge, coating will trap moisture and accelerate failure - you need a rebuild or full replacement. We determine which category you’re in with a camera inspection and physical probe, show you the photo evidence, and quote accordingly. No upsell. Call (301) 719-5236 - estimates are free.
Montgomery Village’s several lakes and retention ponds create pockets of elevated ground-level humidity that accelerate moisture infiltration at the chimney crown and flashing, compounding the freeze-thaw damage already common in 1960s-70s construction. The humid subtropical summers keep masonry from fully drying between rain events, so crowns here fail faster than in drier parts of Montgomery County. A properly sloped crown, intact cap with animal screen, and sealed flashing are your best defense against the accelerated deterioration this microclimate causes. Call (301) 719-5236 for a camera inspection - estimates are free.
Written by Russell Haines, Owner at Hearthstone Chimney Co., serving Montgomery Village and local communities for over 42 years.





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