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.
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AfterFast, Reliable Chimney Cap & Crown Across Forest Glen
Chimney cap and crown work in Forest Glen usually runs between $285 and $1,400 depending on whether you need a simple cap replacement or a full crown rebuild with a multi-flue cap. Most jobs take one visit, and we stock the common parts on the truck so we’re not making you wait on a second trip. If you live in Forest Glen and you’ve noticed water in the firebox, rust staining on the crown, or a cap that’s come loose in a storm, call (240) 716-5865. Wendell Pike and his crew have been working chimneys in this part of Montgomery County long enough to know exactly what the houses here throw at you.
Why Top Hat Chimney Is Forest Glen’s Preferred Chimney Cap & Crown Company
We’re not a franchise that rotated in last spring. Top Hat Chimney was founded in 1999 by Wendell Pike, and we’ve spent the years since crawling across roofs and dropping cameras down flues from Rockville to Forest Glen and everywhere between. When a homeowner on Seminary Road or Capitol View Avenue calls, the crew that shows up is the crew that does the work. Wendell puts his name on every job, and he runs into you again at the Saturday market or the hardware store, so he has a real reason to do the job right the first time.
Every job gets the same treatment: a camera inspection before any recommendation, a plain-English verdict on what the footage shows, and a written quote with the number you heard on the phone. If it’s not done right, the 90-Day Done Right Promise brings us back at no charge. Forest Glen homeowners got burned by national outfits that sent a stranger, changed the price at the door, and vanished afterward. We know that because they tell us. That’s the exact thing we built this company to avoid.
Our Chimney Cap & Crown Services in Forest Glen
The Chimney Cap & Crown work we do in Forest Glen breaks down into four main jobs. Here’s what each one involves and what it costs in this market.
Cap Installation
A new stainless or copper cap on a Forest Glen chimney typically runs $285 to $520 installed. The job takes about an hour. The cap keeps rain, squirrels, birds, and leaves out of the flue, and it stops downdrafts from pushing smoke back into your living room on windy days. For wide flues on 1940s and 1950s homes that were originally sized for oil heat, we often install a multi-flue cap that covers the entire crown rather than a single-flue unit.
Cap Replacement
Rusted, bent, or missing caps are the most common cap issue we see in Forest Glen, and replacement runs $340 to $610 depending on flue size and material. A decade of Montgomery County rain and snow eats through galvanized caps, and once the cap fails, water goes straight down the flue. If your existing cap is pulling away from the crown or the mesh screen is bowed out from a squirrel trying to get in, it’s time.
Crown Repair
Crown work is where Forest Glen’s weather does the most damage. The mid-Atlantic freeze-thaw cycle pushes winter temperatures across 32°F repeatedly, and every crossing works on the soft mortar joints and spalling brick faces of older chimneys. Crown repair in Forest Glen runs $450 to $1,200 depending on severity. Hairline cracks get filled and sealed; badly spalled crowns get rebuilt with a proper overhang and drip edge.
Crown Coating
A flexible crown coating runs $395 to $650 and adds years to a crown that’s still structurally sound but showing surface cracking. This is a good option for Forest Glen’s 1940s-1960s brick colonials where the original mortar crown is starting to let water seep but hasn’t lost its shape. We’ve had good results with HeatShield and Olympia Chimney coating products on local chimneys. The coating flexes with the freeze-thaw movement instead of cracking like rigid mortar does.
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.
Trusted Brands We Service in Forest Glen
We install and service caps and crowns from Gelco, Olympia Chimney, and Famco, and we keep common Forest Glen sizes on the truck so most repairs are one visit. Gelco stainless caps hold up well to the wet winters we get here, and Olympia Chimney crown coating systems are a solid match for the movement we see on older masonry. If you have an existing cap from one of these brands that’s failing, we can usually match the mount pattern without reworking the crown.
Common Chimney Cap & Crown Problems We See in Forest Glen Homes
- Open draft paths on converted oil flues. Most Forest Glen homes outside the Seminary complex were built in the 1940s-1960s with chimneys sized for oil-fired furnaces. When those converted to gas, the wide flue became a moisture trap. An undersized or missing cap lets rain and animals into an open path, which accelerates creosote glazing on whatever liner is left.
- Freeze-thaw cracking on original mortar crowns. The soft mortar joints and spalling brick faces common on older Forest Glen chimneys crack every winter when temperatures cycle across the freezing point. Once water gets into the smoke chamber, it starts eating the clay tiles. Post-winter inspection demand here is reliably heavy every March.
- Over-capped Seminary condo flues. Many flues in the National Park Seminary buildings were subdivided or partially capped during the 1990s-2000s adaptive-reuse renovation. A cap that matches the roofline does not necessarily match what’s happening inside the flue. We’ve seen units where a well-meaning contractor installed a cap that trapped moisture and creosote behind it because the actual liner configuration didn’t match what the cap assumed.
- Rusted single-flue caps that hide deeper damage. A rusted cap is rarely just a cap problem. The rust means water has been getting in long enough to corrode metal, and water that gets past the cap usually finds its way to the crown, the liner, or the firebox. Before we quote a cap replacement, we put a camera down the flue so you see exactly what we see.
Pricing for Chimney Cap & Crown in Forest Glen, MD
Here’s what we charge in Forest Glen. A single-flue cap replacement runs $285 to $520. A multi-flue or custom cap runs $475 to $800. Crown repair runs $450 to $1,200 depending on whether it’s sealing hairline cracks or rebuilding a spalled crown. Crown coating runs $395 to $650. Custom cap fabrication for unusual flue layouts, including some of the Seminary condos, runs $525 to $900. The variables are flue size, material choice, roof pitch and access, and whether the crown needs repair at the same time. We quote a flat price before any tool comes off the truck, and that’s the number on the invoice. Call (240) 716-5865 for a free estimate with no trip charge inside the county.
We Also Serve Cities Near Forest Glen
Top Hat Chimney covers Forest Glen and the surrounding Montgomery County communities. If you’re in Rockville, North Potomac, Redland, or Travilah, we handle cap and crown work there too, with the same flat-price promise and 90-Day Done Right guarantee. One crew, one owner, the same camera inspection on every job.
Serving Forest Glen, MD - Our Local Coverage Area
We’re based in the Forest Glen 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 Cap & Crown in Forest Glen
Because liner continuity cannot be assumed from the roofline alone in this area. The subdivided flues in National Park Seminary condos and the converted oil-furnace chimneys in the surrounding Cape Cods and colonials both hide conditions that change how a cap or crown should be built. A camera inspection adds a few minutes and shows you exactly what’s inside. We never recommend cap or crown work without footage you can see. Call (240) 716-5865 to schedule an inspection.
Usually yes. A wide flue originally sized for oil exhaust now carries a smaller gas liner, and the leftover draft path should be capped properly or vented to avoid moisture and animal intrusion. The right cap for a converted flue depends on what the camera shows inside. We’ll show you the footage and give you a plain answer. Estimates are free at (240) 716-5865.
Yes. A rusted cap is the visible symptom of water that has been entering the flue long enough to corrode metal. The same water usually reaches the crown, the clay tiles, or the firebox. We inspect the full system before quoting a replacement so you don’t fix the symptom and miss the cause. Call (240) 716-5865 and we’ll walk you through what we find.
A flexible crown coating moves with the freeze-thaw cycle instead of cracking against it. Repointing fills joints but doesn’t add flexibility across the crown’s surface. For Forest Glen’s older chimneys where winter temperatures cross 32°F repeatedly, a coating buys years on a crown that’s still intact but showing surface cracks. We can show you the difference on site. Call (240) 716-5865 for a free look.
Yes. The flues in the Seminary’s converted landmark buildings were often subdivided during renovation, so the actual liner configuration inside the masonry can differ from what the roofline shows. Any cap or crown recommendation there starts with a camera inspection, no exceptions. We’ve worked enough of those units to know what to look for. Call (240) 716-5865 and Wendell will explain what’s involved.
Written by Wendell Pike, Owner at Top Hat Chimney, serving Forest Glen and surrounding Montgomery County communities since 1999.