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 Kemp Mill
If you’re searching for chimney repair in Kemp Mill, MD, the short answer is this: most jobs on the 1950s-1970s brick and split-level chimneys in this neighborhood run between $400 and $2,800 depending on what camera inspection actually finds, and you should never agree to a liner or rebuild without seeing the footage yourself. That’s the rule Wendell Pike has worked by since he founded Top Hat Chimney in 1999, and it’s the main reason Kemp Mill homeowners call us before the national chains. We schedule around the Jewish calendar here, show up in a clean truck with a real arrival window, and put the 90-Day Done Right Promise in writing on every job. Call (240) 618-3233 and Wendell or one of his crew will walk you through it.
Why Top Hat Chimney Is Kemp Mill’s Preferred Chimney Repair Company
Kemp Mill is one of the most concentrated Orthodox Jewish communities in the DC metro area, and we’ve built our whole repair schedule around that reality. We don’t run crews on Shabbat, Friday sundown through Saturday night, and we block out the 30-plus Jewish holiday days across the year. That’s not a marketing angle for us. It’s how a local company with ties to the neighborhood actually operates. Homeowners on Arcola Avenue and along Lamberton Drive know they can book an inspection for a weekday morning and not get a call at 3 p.m. on a Friday asking to push it to Saturday.
Wendell puts his name and license number on every estimate, and the phone is answered by a live person around the clock. Not a call center. A lot of Kemp Mill customers have told us they called three other companies and got voicemail. With us, the person who answers likely knows the difference between a repointing quote on a split-level in the Kemp Mill Estates section and one over near Kemp Mill Elementary. That local knowledge matters, because the chimneys here all share the same 50-to-70-year-old DNA.
Our Chimney Repair team has seen the inside of more Kemp Mill flues than we can count. We know the brick colonials off Kemp Mill Road, the Capes near Northwood High School, and the split-levels along Galt Avenue. The reviews from Kemp Mill customers consistently mention the same thing: honest verdicts, camera proof, fair pricing. One call brings Wendell back if anything’s not right, and that promise is stamped on every invoice.
Our Chimney Repair Services in Kemp Mill
Mortar Repointing in Kemp Mill
Freeze-thaw cycles are brutal on the mortar joints of Kemp Mill’s 1960s brick chimneys. Montgomery County winters cross the 32°F mark over and over, and every cycle works water deeper into the joints. When the mortar starts to recess or crumble, water gets behind the brick face and the damage accelerates. Repointing in Kemp Mill typically runs $600 to $1,800 depending on chimney height and how many courses need work. We cut out the old mortar to a proper depth, tuck in fresh material that matches the original color mix, and finish by waterproofing the masonry. You don’t repaint over spalling brick. You repoint it.

Spalling Brick Repair in Kemp Mill
Spalling is what happens when water trapped inside the brick freezes and pops the face off. It’s common on the split-levels throughout Kemp Mill, especially on chimneys that haven’t been sealed in decades. A spalled brick left alone turns into missing brick, and missing brick turns into a structural problem. Replacement of spalled brick and the surrounding joints usually costs $500 to $1,500 on a typical Kemp Mill chimney. We match the new brick to the old as closely as possible, and we always check whether a cracked crown is the root cause. Fix the brick without fixing the water source and you’ll be back in the same spot in three years.

Chimney Waterproofing in Kemp Mill
We recommend waterproofing after every repointing and spalling repair in Kemp Mill, every time. The reason is simple: once you’ve opened up the masonry and put in new mortar, you’ve also created a surface that will absorb water unless you seal it. We use breathable masonry sealers designed for chimneys, not paint or a hardware-store bucket sealer that traps moisture inside. Waterproofing a standard residential chimney in Kemp Mill runs $300 to $700. It’s the cheapest repair on this page, and it’s the one that prevents the expensive ones.

Flashing Repair in Kemp Mill
The flashing where the chimney meets the roof is a weak point on nearly every older home in Kemp Mill. The 1950s and 1960s builders often used thin galvanized metal that corrodes after 30 or 40 years, and roof replacements can pull it loose. Leaks show up as water stains on the ceiling near the fireplace or as damp mortar inside the attic. Flashing repair in Kemp Mill typically costs $450 to $1,200 depending on how much of the old metal needs to come out and whether the surrounding shingles cooperate. We cut and fit new flashing to the specific angle and pitch, then seal it so the next rain doesn’t find the same path.

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 Kemp Mill
We install and service liners and components from HeatShield, Gelco, and Famco. These aren’t generic parts we pick up on the way to your house. They’re brands with proven track records in relining older masonry chimneys like the ones all over Kemp Mill. HeatShield’s ceramic coating system is often the right answer for a cracked clay tile liner when the chimney structure is still sound. We keep the common parts on the truck for Kemp Mill jobs, so a liner job on a 1963 brick colonial doesn’t stall waiting for a shipment from Maryland’s suppliers. You’ll know the brand going in, and we’ll show you why it matches your chimney.
Common Chimney Repair Problems We See in Kemp Mill Homes
- Undersized clay tile flues cracking under modern insert heat. Kemp Mill homeowners frequently add EPA-certified wood inserts into original 1960s fireboxes without relining the chimney. The older clay tiles were never sized for the heat, and they crack. The crack lets creosote and carbon monoxide into the chase with no visible exterior damage. Montgomery County code now flags this mismatch.
- Freeze-thaw spalling on split-level crowns. Winters here oscillate across freezing so often that crowns crack early. Water enters, freezes, and pops brick faces. Homeowners see the crumbling brick and repaint. The mortar keeps failing underneath. Repointing is the actual fix, followed by waterproofing.
- Unlined chimneys venting gas appliances. Some 1950s Kemp Mill homes have chimneys that were never lined, or where the original liner is gone. Gas appliances venting into unlined masonry draw condensation that eats the mortar from inside. By the time it’s visible on the outside, it’s a rebuild, not a repair.
- Flashing failures after roof replacements. New roofs look great and leak if the flashing wasn’t redone. Kemp Mill’s older colonials and Capes have roof pitches that make the chimney intersection tricky. A good roofer who doesn’t also do chimney work will sometimes reuse old flashing. We fix that all the time.
Pricing for Chimney Repair in Kemp Mill, MD
Here are the ranges we quote most often in Kemp Mill, based on the housing stock and the repairs those chimneys actually need:
- Mortar repointing: $600-$1,800
- Spalling brick replacement: $500-$1,500
- Chimney waterproofing: $300-$700
- Flashing repair: $450-$1,200
- Flue relining (HeatShield or stainless): $1,800-$4,500
- Partial chimney rebuild above the roofline: $2,200-$4,800
What moves a quote up or down? Chimney height, roof pitch, access from ladders or a lift, and how much of the existing masonry is salvageable. We don’t give a phone number and then change it at the door. The price Wendell quotes before a tool comes off the truck is the price on the invoice. And if you already have a written estimate from another company, bring it in. We’ll give you a free second opinion. Estimates are free, and there’s no trip charge for Kemp Mill homes inside the county. Call (240) 618-3233.
We Also Serve Cities Near Kemp Mill
Our crews work throughout the close-in Montgomery County suburbs, so if you live just over the line, we likely have you covered too. We do regular Chimney Repair in Kemp Mill work and take calls from Bethesda, Potomac, North Bethesda, and Chevy Chase. Same camera-first policy, same 90-Day Done Right Promise. If you’re not sure whether we cover your street, call and ask.
Serving Kemp Mill, MD - Our Local Coverage Area
We’re based in the Kemp Mill 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 Kemp Mill
Because we won’t recommend a liner, rebuild, or repointing job without proof, and you shouldn’t accept one either. The flues in 1950s-1970s Kemp Mill colonials and split-levels hide most of their damage behind the brick. A visual inspection from the roof or hearth can’t show you a cracked clay tile, a voided mortar joint, or third-degree creosote glaze. Our camera goes down the flue, records everything, and we review the footage with you before quoting anything. No camera, no recommendation, no exceptions. That’s how we protect Kemp Mill homeowners from buying repairs they don’t need. Call (240) 618-3233 and we’ll schedule the inspection around your household’s calendar.
Yes. We run no crews from Friday sundown through Saturday night, and we block the 30-plus Jewish holiday days on our scheduling calendar every year. That’s built into how we serve Kemp Mill, not an accommodation we make grudgingly. We also front-load inspections in the weeks before Passover, because we know many Kemp Mill families want their chimneys and ovens checked and cleaned before the holiday. If your only availability is a Thursday afternoon or a Sunday after Shabbat, we make it work. Just call (240) 618-3233 and the person who answers will schedule around your actual calendar.
Not necessarily. What matters is whether the original clay tile liner is still intact and whether your burning habits have created creosote buildup that could ignite. If the camera shows hairline cracks in the original 1960s tile, a stainless liner or a HeatShield ceramic reline may be the right call, even for occasional burning, because cracked tiles let heat and gases reach the surrounding masonry. If the liner is sound and the creosote is light, you may only need a sweep. We’ll show you the footage and tell you plainly which situation you’re in. On Knollwood Drive, our tech camera-scanned a 1963 brick colonial’s flue before recommending anything and found third-degree creosote glazing the original clay liner plus a cracked firebox from an EPA insert added in 2016. We showed the homeowner the footage, then heat-shielded the liner and rebuilt the firebox with Famco parts before the family’s pre-Passover oven-cleaning week. You’ll get the same proof before any recommendation.
You can’t tell from the ground, and anyone who says they can is guessing. What looks like surface crumbling is often water damage from a cracked crown or failing flashing. When freeze-thaw spalling is the actual cause, the brick face is popping off structurally, not just shedding a little dust. The difference matters, because cosmetic sanding and repainting does nothing for spalling. In Kemp Mill, where winters repeatedly cross the freezing threshold, spalling on split-level crowns is one of the most common findings we camera-verify. We inspect the crown, check for moisture behind the brick, and tell you whether it’s repointing, waterproofing, or both. If you’re seeing powder or brick chips at the base of the chimney, call (240) 618-3233 for a straight answer.
Because fresh mortar and original 1960s brick absorb water at different rates, and that differential is exactly where new freeze-thaw damage starts. Once we repoint a Kemp Mill chimney, the new joints are cleaner and more porous than the aged brick around them. Without a breathable masonry sealer, winter moisture enters through the new joints and the whole cycle starts again. That’s why we recommend waterproofing as part of every repointing and spalling repair in this area. It adds a few hundred dollars and extends the life of the repair by years. If you already have a repointing quote that doesn’t include waterproofing, bring it to us. We’ll give you a free second opinion before you spend anything
When you need chimney repair in Kemp Mill, call Top Hat Chimney at (240) 618-3233. Wendell Pike and his crew will camera-scan the flue first, show you what they see, and give you a price before any work begins. Free estimates, no trip charge for Kemp Mill homes, and the 90-Day Done Right Promise on every job, in writing.
Written by Wendell Pike, Owner at Top Hat Chimney, serving Kemp Mill and the surrounding Montgomery County communities.





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