Fast, Reliable Chimney Repair Across Bethesda
Chimney Cleaning & Sweep - Bethesda and repair work typically runs $350-$2,800 depending on scope, and most jobs we book are completed in a single visit with our technicians arriving the same day or next day. We’re familiar with the brick Colonials along Bradley Boulevard, the Tudors tucked into Kenwood’s winding lanes, and the Cape Cods near the NIH campus - homes whose chimneys have been standing since the Truman administration and now need honest attention, not a sales pitch. If you’re seeing crumbling mortar, water stains on your ceiling, or bricks that have started to flake and pop, call us at (844) 803-1545. A live person will answer, and we’ll get you scheduled.
Bethesda’s freeze-thaw winters do particular damage to the 60-to-90-year-old chimneys that dominate this market. The DC metro doesn’t stay frozen; it crosses and recrosses that 32-degree line all winter long, expanding and contracting the water trapped in your mortar joints and clay tile liners until something gives. Our Chimney Repair crews have been working in Montgomery County long enough to know what that cycle looks like on a 1952 brick chimney versus a 1980s flue, and we price accordingly - no surprises on the bill.
Why Hearthstone Chimney Co. Is Bethesda’s Preferred Chimney Repair Company
We’ve been answering calls in this region since 1984 - over 42 years - and we’ve built our reputation on showing up when we say we will and documenting what we find so you can see it yourself. Our Level-2 camera inspections end with photos you can see and a plain-English verdict, not a vague recommendation and a hard push.
Our technicians are background-checked, uniformed, and carry professional-grade materials from HeatShield, Gelco, and Olympia Chimney on their trucks. Most repairs are completed in a single visit because we don’t believe in stretching a one-day job across two or three.
Every call to (844) 803-1545 is answered by a live person, 24 hours a day, 7 days a week. Not a callback queue. Not an app. A person who can get you on the schedule.
And every job is backed by our 90-Day Done Right Promise - in writing, no arguing. If it’s not right, we come back and make it right. That’s the Keystone Standard, and it’s how we’ve stayed in business for four decades.
Our Chimney Repair Services in Bethesda
Mortar Repointing
The mortar in a Bethesda chimney built in 1947 was never meant to handle forty years of freeze-thaw cycling, but here we are. We grind out the deteriorated joints to proper depth and repoint with color-matched, professional-grade mortar that bonds correctly with your original brick. In neighborhoods like Edgemoor and Bradley Hills, where home values demand aesthetic precision, we take care to match the existing mortar profile so the repair disappears into the facade. Typical repointing in Bethesda runs $450-$1,200 for a standard chimney.

Spalling Brick Repair
Spalling - those flaked, popped, or crumbling brick faces - is what we see most often in Bethesda’s older sections near the DC border, where humid summers load masonry with moisture and winter freeze-thaw blows it apart from within. We remove damaged bricks, source matching replacements when possible, and rebuild the affected courses with proper bonding. For severe cases, we may recommend Chimney Cap & Crown in Bethesda to stop the water intrusion at its source. Spalling repair typically ranges from $350-$950.

Chimney Waterproofing
Bethesda’s combination of humid summers and penetrating winter rains makes unsealed masonry a slow-motion liability. We apply vapor-permeable waterproofing agents that let the chimney breathe while blocking liquid water - critical for the clay tile liners in dual-flue chimneys that still serve gas inserts or fireplaces. A proper waterproofing treatment runs $180-$450 and buys you years of protection against the moisture that destroys mortar and triggers spalling.

Flashing Repair
The intersection where your chimney meets the roofline is the most common leak point we find in Bethesda’s steep-pitched Colonials and Tudors. Original flashing often consists of stepped copper or galvanized steel that has worked loose, corroded, or been buried under layers of caulk by well-meaning roofers. We remove the old material, install new counter-flashing and step-flashing with proper integration into the roofing system, and seal with professional-grade compounds. Flashing repair in Bethesda typically costs $400-$850, with full replacement at the higher end.

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 Bethesda
We stock our Bethesda-area trucks with professional-grade materials from HeatShield, Gelco, and Olympia Chimney - not builder-grade substitutes that fail in five years. When we recommend a stainless steel liner from Olympia or a refractory repair using HeatShield’s cerfractory technology, it’s because we’ve watched these materials outlast the alternatives in Montgomery County’s demanding climate. That local inventory means faster turnaround for you: no waiting two weeks for a part to ship from a warehouse three states away. We also handle Fireplace Services in Bethesda using the same professional-grade standards.
Common Chimney Repair Problems We See in Bethesda Homes
- Abandoned furnace flues filling with debris. In older sections near the DC border, technicians routinely find that a furnace or boiler flue was capped at the roofline decades ago during a conversion to forced-air heat, but was never internally sealed. That dead flue silently accumulates water, animal nests, and deteriorating tile debris that undermines the entire chimney structure - a failure mode that almost always surfaces during the Level II inspection a real estate transaction demands.
- Freeze-thaw mortar deterioration in dual-flue chimneys. Bethesda’s pronounced freeze-thaw cycle, with winters that repeatedly cross the 32°F threshold rather than staying consistently cold, is especially destructive to mortar joints and clay tile liners. The damage accelerates in homes with original 1930s-1960s construction where both a fireplace flue and an abandoned furnace flue share the same masonry mass.
- Uncapped secondary flues after gas insert retrofits. A significant share of Bethesda’s brick Colonials have had gas inserts retrofit into original wood-burning fireplaces, leaving the secondary flue uncapped and exposed. Moisture intrusion and animal nesting follow, often unnoticed until a Level II inspection reveals the deterioration.
- Real estate transaction surprises in luxury markets. Montgomery County’s high-value transactions routinely surface cracked or deteriorated clay tile liners in the area’s dense stock of historic brick homes. Buyers’ attorneys regularly require documented inspections and relining before closing, making proactive repair the smoother path.
Pricing for Chimney Repair in Bethesda, MD
Here’s what honest pricing looks like for the work we do most often in Bethesda:
- Minor mortar repointing (spot repair): $350-$650
- Full chimney repointing: $1,000-$2,800
- Spalling brick repair (localized): $350-$950
- Chimney waterproofing: $180-$450
- Flashing repair: $400-$850
- Flashing full replacement: $800-$1,500
- Partial chimney rebuild (above roofline): $1,500-$3,500
What moves you within these ranges? Height and access, the extent of damaged masonry, whether we need to match historic mortar colors precisely, and whether the repair reveals deeper issues in a liner or flue that also need Chimney Liner & Rebuild in Bethesda attention. We don’t find surprises to upsell you; we find them because we’re thorough, and we tell you upfront what the full picture costs before we start. Estimates are free. The number on your estimate is the number on your invoice. Call (844) 803-1545 for an exact quote.
We Also Serve Cities Near Bethesda
Our crews work throughout Montgomery County and into the close-in Maryland suburbs. If you’re in Bethesda proper, North Bethesda, Rockville, Potomac, or Aspen Hill, we’re typically on-site the same day or next day. The same live-answer phone, the same 90-Day Done Right Promise, the same no-hassle upfront pricing applies wherever we go.
Serving Bethesda, MD - Our Local Coverage Area
We’re based in the Bethesda 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 Bethesda
Most Bethesda appointments are scheduled same-day or next-day, and our technicians arrive within the two-hour window we quote. Call (844) 803-1545 - a live person will check availability and hold your slot.
Yes. We regularly work in Kenwood, Edgemoor, Bradley Hills, and throughout the 20892, 20894, 20810, and 20811 ZIP codes. The historic homes in these neighborhoods are exactly the housing stock we specialize in.
Yes. Our phones are staffed by a live person 24 hours a day, 7 days a week, including holidays. If you have active water intrusion, a damaged chimney after a storm, or a structural concern that affects safe fireplace use, we prioritize emergency calls and will get a technician to your Bethesda home as quickly as conditions allow.
Prices are comparable across Montgomery County for standard repairs. Bethesda’s luxury market does see higher costs for aesthetic-sensitive work - precise mortar color matching in historic districts like Kenwood, or repairs timed to real estate closing deadlines - but our base labor rates and material costs are consistent. We offer a permanent 5% Senior and Veteran discount regardless of location, plus $50 off any repair over $250.
Every repair is backed by our 90-Day Done Right Promise - in writing, no arguing. If it’s not right, we come back and make it right. For materials, we honor the manufacturer’s warranty on professional-grade products from HeatShield, Gelco, and Olympia Chimney. Call (844) 803-1545 with any warranty question; we answer our own phones.
Written by Russell Haines, Owner at Hearthstone Chimney Co., serving Bethesda and Montgomery County since 1984.