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.
Chimney Cleaning Services in Forest Glen, MD
Most chimneys in Forest Glen haven’t been looked at in years, and the ones attached to the old Seminary buildings haven’t been looked at properly in decades. That’s where we come in. Top Hat Chimney has been keeping flues safe and drafting right since 1999, and we answer the phone when you call, whether it’s Tuesday afternoon or Sunday night. For chimney cleaning in Forest Glen, the number is (240) 716-5865. We’ll give you a straight price before any tools come off the truck.
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 Forest Glen Homeowners Choose Top Hat Chimney
Forest Glen isn’t a typical suburban grid, and the chimneys here aren’t typical either. Between the converted Seminary condominiums and the brick colonials along Dennis Avenue and Seminary Road, every job has its own history. Homeowners tell us the same thing: they want a sweep who knows the difference between a flue that’s fine and one that’s quietly falling apart, and who won’t invent problems to pad the invoice.
Wendell Pike started this company in 1999 and still runs it himself. His name and license number are on every piece of paper we hand you, and the 90-Day Done Right Promise is written on every job: if something isn’t right, one call brings him back. We serve the neighborhoods around Forest Glen Park, along Capitol View Avenue, and throughout the Seminary Place condominium complex. When your neighbors call for chimney cleaning, we’re usually the ones who show up.
Need a second opinion? We’ll give you one free, in writing, on any competing estimate. Book a repair over $200 and you get $40 off. If you’re a senior or veteran, it’s 10% off, always. Those aren’t promotions. They’ve been standing offers for years.
Chimney Cleaning Services We Offer in Forest Glen
Chimney Cleaning & Sweep
A standard cleaning removes creosote, soot, and any debris blocking the flue. In Forest Glen, we also check for the kind of hidden damage that accumulates quietly: cracked flue tiles, water staining, and mortar joints that have turned to sand. Every cleaning includes a camera inspection so you see what we see.
Learn more about our Chimney Cleaning & Sweep in Forest Glen.

Chimney Repair
Repair work covers everything from repointing brick and replacing dampers to rebuilding smoke chambers. The older chimneys in Forest Glen, especially the 1940s and 1950s masonry, often need more than a patch job once water gets behind the brick.
Learn more about our Chimney Repair in Forest Glen.

Fireplace Services
If your fireplace smokes into the room, burns poorly, or has a gas log that won’t stay lit, the fix usually isn’t the fireplace itself. It’s the flue above it. We service both wood-burning and gas fireplaces, including insert cleanings and gas log replacements.
Learn more about our Fireplace Services in Forest Glen.

Chimney Cap & Crown
A cracked crown or missing cap lets water into the chimney, and water is what kills a flue. We install and repair Chimney Cap & Crown in Forest Glen, rebuild crowns, and add chase covers where the weather has eaten through the metal. It’s inexpensive compared to a liner rebuild.

Chimney Liner & Rebuild
When a liner is cracked or missing, the chimney isn’t safe to use. We install and service Chimney Liner & Rebuild in Forest Glen using DuraFlex, HeatShield, and Olympia Chimney products, and we’ll tell you plainly if a repair will do instead of a full rebuild. The camera footage from your inspection is yours to keep.

Neighborhoods We Serve in Forest Glen
We’re in and out of Forest Glen regularly, and we know the streets by name rather than by GPS. Typical response time for a cleaning is the same week we hear from you, often sooner.
- Seminary Place condominiums
- Forest Glen Park area
- Capitol View Avenue corridor
- Seminary Road and Dennis Avenue
- National Park Seminary historic district
Why Forest Glen’s Climate & Housing Affect Chimney Cleaning
Forest Glen sits squarely in the mid-Atlantic freeze-thaw band. Every winter, temperatures cross 32°F over and over, sometimes dozens of times between December and March. Each cycle works on the soft mortar joints common to the area’s older brick chimneys: water seeps in, freezes, expands, and widens the crack. By spring, a chimney that looked fine in October has spalled brick faces and loose joints that let water into the flue. We see the heaviest repair calls every March and April in Forest Glen, and most of them trace back to freeze-thaw damage that a fall inspection would have caught early.
The housing stock here makes it worse. Outside the Seminary complex, most homes are 1940s to 1960s Cape Cods and brick colonials whose oversized masonry chimneys were built for oil-fired furnaces. When those houses converted to gas heat or switched to decorative fireplaces only, the flues stopped doing the work they were sized for. Low-temperature gas exhaust doesn’t move fast enough to carry moisture out, so it condenses inside the wide flue, soaks into the liner, and accelerates creosote glazing and liner cracking. If your Forest Glen home hasn’t been converted to a properly sized liner, an annual inspection isn’t just a formality. It’s the only way to see what’s happening in there.
Pricing for Chimney Cleaning in Forest Glen
You’ll get an exact price before we start, and the number we quote is the number on the invoice. For a standard cleaning with a camera inspection in Forest Glen, expect to pay between $189 and $289, depending on flue height, access, and how long it’s been since the last sweep. The inspection report and photo file are included.
If the camera shows damage that needs repair, we’ll show you exactly what we’re seeing and walk through what’s urgent, what can wait, and what each option costs. There’s no pressure and no hidden add-on. Repairs vary widely by scope, but here’s what to expect in Forest Glen:
- Standard sweep with camera inspection: $189-$289
- Chimney cap replacement or new install: $150-$450
- Crown repair or rebuild: $350-$900
- Liner replacement (typical Forest Glen colonial): $2,500-$5,500
- Full rebuild (rare, older Seminary-adjacent structures): $7,000+
Call (240) 716-5865 and we’ll give you an exact quote for your chimney. Estimates are free, and there’s no trip charge for homes inside the county.
Service Area - Cities Near Forest Glen
If you’re in a neighboring community, we work there too. Many customers come to us from home searches for chimney service across Montgomery County, including Rockville, North Potomac, Redland, and Travilah. Forest Glen is our local focus, but we’re on the road throughout the area every week.
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 About Chimney Cleaning in Forest Glen
Once a year, regardless of how often you burn. For wood-burning fireplaces in Forest Glen, annual cleaning keeps creosote at safe levels. For gas fireplaces or decorative chimneys, the main risk isn’t creosote, it’s moisture and concealed damage, so the annual visit is really about the camera inspection. Call (240) 716-5865 to schedule, and we’ll give you a date that works.
A standard cleaning in Forest Glen runs $189 to $289, including the camera inspection and written report. Where it lands in that range depends on flue height, roof access, and how much creosote has built up. You’ll always get the exact price before work begins. For a free quote on your chimney, call (240) 716-5865.
Yes. Many of the flues in the National Park Seminary units were subdivided or partially capped during the 1990s and 2000s renovations, so liner continuity can’t be assumed from the roofline. A camera inspection is mandatory before any cleaning, and we follow modified protocols for pre-1910 institutional chimneys that are now serving private living units under modern county fire codes. That’s exactly the kind of chimney we’ve worked on since 1999.
First-degree creosote is a brush job. Third-degree is a glaze, and by then you’re looking at a liner situation rather than a cleaning. Beyond creosote, Forest Glen’s freeze-thaw cycles quietly open cracks in masonry that let water in, and by the time you see staining on the ceiling, the damage is usually extensive. An annual inspection costs less than most people spend on firewood. Call (240) 716-5865 if it’s been more than a year.
Always. We run a camera through every flue we clean in Forest Glen, and you’ll see the footage yourself, live or in the report. If we recommend a repair, the recommendation comes with images, a plain-English explanation, and an honest answer on whether the work can safely wait. We will never ask you to spend money on something you can’t see for yourself.
Written by Wendell Pike, Owner at Top Hat Chimney, serving Forest Glen and Montgomery County since 1999.
What happens when you call
- 1A real person answersNo phone trees - talk to a local chimney cleaning pro.
- 2You get an upfront price rangeHonest numbers before anyone is dispatched. No surprises.
- 3We come out and measureLicensed & insured, at a time that suits you - the visit and the quote are both free.
- 4You get the price in writingLine-itemed, yours to keep, and nothing starts until you say go.
What Forest Glen Customers Say
"He repointed the crown and waterproofed the stack, and two winters on there is not a damp mark on the ceiling where there used to be one every February."
- Harold Vance"Gave me the photos from inside the flue on a memory stick along with the invoice. I have never had a trade hand me evidence before."
- Priscilla Ng"Wendell has swept our chimney every autumn for six years now. He knows the flue better than I know it and he tells me when it does not need doing, which is not something most trades will admit to."
- Eleanor Prescott





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