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 Glenmont
Chimney cap and crown work in Glenmont usually runs between $350 and $1,900 depending on whether we’re replacing a single cap, rebuilding a deteriorated crown, or fitting a custom multi-flue cap over dual flues. If you also need our Chimney Cleaning & Sweep in Glenmont, we can often bundle services in one visit. Most jobs are completed in one visit. If you live off Georgia Avenue, Layhill Road, or around Glenmont Metro, Wendell and his crew know your streets, your housing stock, and the particular ways mid-century chimneys fail around here. Call (240) 716-5865 for a free estimate before the next freeze-thaw cycle does more damage.
Why Top Hat Chimney Is Glenmont’s Preferred Chimney Cap & Crown Company
Wendell Pike started Top Hat Chimney in 1999, and he’s spent nearly three decades working the same communities you live in. That matters here in Glenmont, where nearly every job involves a 50 to 75 year old full brick chimney with original mortar joints and terra cotta flue tiles that have outlived their intended service life. He doesn’t send a rotating crew of strangers. He sends himself, his own people, or a background-checked technician in uniform who calls ahead with a real arrival window.
Our Glenmont customers come back to us because the number on the estimate is the number on the invoice, and because the 90-Day Done Right Promise is stamped on every job. If something isn’t right, one call brings us back at no additional cost. Ask anyone on your street. We answer the phone with a live person around the clock, and it may well be Wendell himself picking up.
Our Chimney Cap & Crown Services in Glenmont
Here’s what we handle most often for Glenmont homeowners, and why each one matters on these mid-century houses. You can also see the full range on our Chimney Cap & Crown service page.
Cap Installation
A proper chimney cap keeps rain, squirrels, birds, and debris out of your flue. On Glenmont’s 1950s and 60s Cape Cods and ranchers, we routinely find flues that have never been capped at all, or caps that have rusted through after decades of Montgomery County humidity. We stock stainless and copper caps sized for both standard single-flue and the dual-flue configurations common here.
Cap Replacement
If your existing cap is dented, rusted, or missing its mesh screen, it’s not doing its job. We remove and replace it, and we check the crown underneath while we’re up there. In Glenmont, a rusted cap from a big-box store is a recurring find, especially on homes where the original cap was never replaced after an oil-to-gas heating conversion.
Crown Repair
The chimney crown is the concrete slab at the top of the stack that sheds water away from the flue. On Glenmont split-levels and Cape Cods built between 1948 and 1975, the original clay tile crowns erode under repeated Montgomery County freeze-thaw cycles. Once cracks form, water gets behind the flashing and into the attic chase. We rebuild spalled crowns and coat them with Gelco crown sealant to buy years of protection.
Crown Coating
When the crown is still structurally sound but the surface is pitted and porous, a flexible crown coat seals it against moisture intrusion. We use Gelco products because they handle the temperature swings Glenmont sees every winter without cracking. This is a half-day job that prevents a much bigger liner or chase repair later.
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 Glenmont
We install and service caps and crowns from Olympia Chimney, Famco, and Gelco. These aren’t the thin gauge caps you’ll find at a home center. They’re full stainless or copper, built for the freeze-thaw exposure that Glenmont chimneys absorb every year. We keep the common sizes and multi-flue configurations for Glenmont’s dual-flue split-levels on hand, which means less waiting when your cap has failed and the next storm is on the way.
Common Chimney Cap & Crown Problems We See in Glenmont Homes
Here’s what we run into over and over on Glenmont roofs:
- Uncapped abandoned oil-furnace flues. Decades of oil-to-gas heating conversions left old furnace flues capped only at the firebox and forgotten. From the top, they’re open to rain and birds.
- Eroded original clay crowns. Fifty to seventy years of Montgomery County freeze-thaw cycles spall the crown surface and open cracks that channel water behind the flashing.
- Rusted or improper caps on dual-flue stacks. A single-flue cap slapped onto a dual-flue chimney leaves the second flue exposed. Water and debris enter, and nobody notices until the adjacent wall shows damage.
- Debris-packed abandoned flues compromising active fireplace flues. When an abandoned furnace flue fills with nests and standing water, the shared brick wall inside the chase can fail silently, even while your fireplace flue looks fine from below.
Pricing for Chimney Cap & Crown in Glenmont, MD
Here are straight numbers for Glenmont’s market:
- Standard stainless single-flue cap installation: $350-$600
- Multi-flue cap for a split-level dual-flue chimney: $600-$1,100
- Custom cap to fit odd flue tiles or a re-pointed stack: $900-$1,900
- Crown repair with partial rebuild: $550-$950
- Full crown rebuild with Gelco coat: $1,000-$1,850
- Crown coating only (sound crown, porous surface): $450-$800
The biggest variable on Glenmont jobs is whether a second flue, abandoned decades ago, also needs to be addressed. When you call (240) 716-5865, we quote a flat price before the first tool comes off the truck. You’ll also get $40 off any repair over $200, and seniors and veterans always receive 10% off.
We Also Serve Cities Near Glenmont
We work throughout this part of Montgomery County, from Chimney Cap & Crown in Glenmont south to Rockville, North Potomac, Redland, and Travilah. If you’re unsure whether you’re inside our service area, call (240) 716-5865 and a live person will tell you straight.
Serving Glenmont, MD - Our Local Coverage Area
We’re based in the Glenmont 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 Glenmont
Glenmont split-levels built in the 1950s and 60s typically have a single wide brick chase containing two flues, one for the fireplace and one for the original oil-fired furnace. If your fireplace also needs attention, ask us about Glenmont Fireplace Services when you call. A multi-flue cap covers both flues under one stainless lid, which is the only way to seal the full width of the chase and keep water from pooling on the shared brick wall between flues. Two separate caps leave the middle of the chase exposed. We measure each flue’s tile and fit a custom multi-flue cap from Olympia Chimney so the coverage is exact. Call (240) 716-5865 if your split-level still has an open second flue, and we’ll camera-check both before quoting anything.
Yes, and this is the single most common problem we find on Glenmont homes along the Georgia Avenue corridor. When the old oil furnace was replaced with a high-efficiency gas unit vented through PVC, the original furnace flue was often capped only at the firebox and left open at the top. Rain, birds, and leaves enter, and that debris sits against the shared brick wall with your active fireplace flue. We cap the abandoned flue at the top, remove what’s inside, and show you the camera footage before and after, so you’re never paying for work you can’t see. If the shared wall has suffered moisture damage, we may recommend Chimney Repair in Glenmont to prevent further deterioration. Call (240) 716-5865 for a free inspection.
Look at the crown from the ground or a safe vantage point. On Glenmont chimneys, early failure shows as hairline cracks running in a web pattern across the crown surface, white efflorescence (salt deposits) on the brick just below the crown, or pieces of the crown edge missing where the freeze-thaw cycle has spalled it off. You may also see dark staining on the ceiling near the chimney chase in the attic before any drips appear. If you spot any of these signs, call (240) 716-5865 and we’ll inspect the crown with a camera and give you a straight answer on whether it can be coated or needs a rebuild.
No, and if you’ve had a national chain out before us, you may have already experienced that exact conversation. Wendell’s rule is simple: we show you the camera footage and a plain-English verdict, every time, no exceptions. If a crown is sound except for a single crack, we’ll quote a partial repair. If it’s spalled across the surface, we’ll show you why a full rebuild makes sense. We don’t recommend a dollar of work we can’t justify with footage you can see yourself. Call (240) 716-5865 and get a second opinion with no trip charge inside the county.
Ranchers in Glenmont typically have single-story roofs with a chimney rising from the ridge or a low slope, which makes access straightforward and often means a standard single-flue cap fits. Split-levels are different because the chimney runs through two or three levels of roof height and usually carries two flues in one chase, so the cap has to be custom-sized and access requires working from a steeper roof plane. The cap itself costs more on split-levels because it’s usually a multi-flue unit covering both flues. When we quote a Glenmont job, the roof type and flue count are already factored into the flat price. Call (240) 716-5865 and we’ll tell you exactly what your house needs.
If you’re tired of estimates that change at the door and technicians you’ll never see again, call Top Hat Chimney at (240) 716-5865. Wendell Pike runs this company with his name on the work, and he’ll give you a straight answer, a flat price, and camera footage to back up every recommendation. Free estimates, no trip charge inside the county, and the 90-Day Done Right Promise in writing on every job.
Written by Wendell Pike, Owner at Top Hat Chimney, serving Glenmont since 1999.