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.
The Level Two Chimney Gaithersburg Guarantee
We stand behind our work with the 365-Day Done Right Promise: if it’s not done right, we make it right. That’s stamped on every job we complete in Gaithersburg, from a basic sweep in Olde Towne to a full flue liner replacement near Lakeforest. Since 2009, we’ve inspected and cleaned more than 38,000 chimneys across Montgomery County, and every single one carried a written price before work started and a documented photo record when it was done. That’s not a slogan. That’s Clause 1 and Clause 4 of the Haven Standard, and we’ve operated under it since day one.
What’s Covered
- Workmanship on every service. If a sweep, repair, cap install, crown work, or liner job we perform doesn’t hold up as it should within 365 days, we return and correct it at no charge.
- Written price before any work starts. No exceptions, no verbal estimates, no ‘we’ll see once we get in there.’ You get a written scope, written price, and written warranty before a single tool comes off the truck.
- Documented photo record on every visit. Clause 4 of the Haven Standard requires it. You walk away with photos of your flue, smoke chamber, crown, and cap, not just a receipt.
- Camera-scan inspection (NFPA 211 Level 2). We don’t guess about what’s happening above the damper. We run a camera up the flue and show you exactly what we found.
- Uniformed, background-checked technicians. A named tech is assigned to your job. You’ll know who’s coming, and you’ll get a text when they’re on the way.
- On-time arrival as a stated commitment. This is the ‘Arrive on schedule’ clause of the H.A.V.E.N. standard. If we’re running late, you’ll know before we’re late.
- Cleanup as part of the job, not an afterthought. A chimney sweep stirs up soot and creosote. We lay drop cloths, run HEPA-filter vacuums, and leave your hearth cleaner than we found it.
- Honest parts sourcing. We use materials from DuraFlex, HeatShield, Gelco, Olympia Chimney, Famco, and Copperfield, procured through Haven’s buying network specifically to keep customer prices honest.
How Much Does a Chimney Sweep Cost in Gaithersburg?

Most chimney sweeps in Gaithersburg run between $180 and $340, depending on the flue’s condition, the amount of creosote buildup, and whether you have a single-story or multi-story chase. Our written price covers the sweep, the Level 2 camera scan, and the photo record. You’ll never get a ‘surprise add-on’ after the fact. If we find something that needs attention, you’ll see it on camera before we recommend anything.
| Service | Typical Range in Gaithersburg | What’s Included |
|---|---|---|
| Standard chimney sweep (open fireplace) | $180-$260 | Sweep, Level 2 camera scan, photo record, written report |
| Chimney sweep with heavier creosote (Class II or III) | $260-$340 | Sweep, camera scan, photo record, creosote class notation, removal of glazed deposits if accessible |
| Chimney cap install or replacement | $220-$520 | Cap, hardware, sealant, photo documentation |
| Crown repair or reseal | $350-$750 | Depending on crown condition and material; written quote before work |
| Flue liner inspection (camera-scan only) | $120-$180 | Camera footage, photo record, written findings |
These ranges reflect what we’ve quoted across Gaithersburg, Germantown, Rockville, and the surrounding Montgomery County area. Your written price will be specific to your chimney, not a generic menu number. Call (240) 220-9395 for an exact written quote. Estimates are free.
Before
AfterOur Satisfaction Promise
If you’re not satisfied with the work, call us. The 365-Day Done Right Promise means we return and make it right at no charge. No arguing about what was or wasn’t covered. No ‘that’s just how chimneys work.’ If we swept your chimney and you still smell smoke in the living room, we come back. If a cap we installed comes loose in a windstorm, we come back. If a crown we resealed starts spalling again inside the year, we come back. Corrine Halstead, Owner at Level Two Chimney Gaithersburg, has run the business this way since 2009, and the promise is simple enough to write on a work order: if it’s not done right, we make it right. That’s the whole document.
Licensed & Insured Backing

Licensing and insurance are the real guarantee behind the paperwork. A licensed chimney contractor in Maryland answers to the state’s code requirements, and we carry the proper licensing and insurance to back every job in Gaithersburg. If a technician is on a ladder at a Kentlands townhome or on a roof near Washingtonian Center, that coverage is active. We’re insured and bonded, and our license information is displayed on every page and available on request. You should never have to ask a chimney company if they’re legal to work on your home; the answer should be printed somewhere you can see it. Ours is.
Free Second Opinion on Any Written Estimate
Bring us a competitor’s written quote and we’ll give you our written assessment of it, free. If the other company found a cracked liner or a failing crown, we’ll run our own camera scan and show you what we find. In Gaithersburg’s older housing stock, where flues date to the 1970s and 1980s, we regularly see quotes for liner replacements that aren’t supported by the camera footage. A Class II creosote glaze doesn’t require a $6,000 liner job. A hairline crown crack doesn’t either. Call (240) 220-9395 with the other written estimate in hand, and we’ll tell you straight what needs doing and what can wait. The second opinion is free, and the only thing you’ll walk away with is a clearer picture of your chimney.
What Actually Happens if I Skip a Chimney Sweep?

Creosote builds up in your flue every time you burn wood. It accumulates in three classes: Class I is flaky soot, Class II is a crunchy, tar-like deposit, and Class III is a hardened glaze that can require chemical or mechanical removal. Class III creosote is flammable at chimney-fire temperatures, and a chimney fire can crack a flue liner, warp a damper, and send heat through cracks into the framing around the chimney. Carbon monoxide risk rises when a flue is partially blocked. In Gaithersburg, where many homes still have original masonry chimneys from the 1960s and 1970s, we’ve seen flues narrowed to a few inches by creosote buildup. The fix is usually a sweep, not a liner. But you won’t know until a camera goes up there. Call (240) 220-9395 to book a sweep with a camera inspection. You’ll get a written price before we start, and photos of the flue before we leave.
Do I Really Need a New Liner?
Maybe. Probably not as often as you’ve been told. A cracked clay flue liner in a Gaithersburg chimney is a real problem, because heat and gases can escape through the cracks into the chase or the framing. But a stained liner isn’t necessarily cracked. A liner with surface mineral deposits isn’t necessarily failing. The only way to know is a Level 2 camera scan. We use DuraFlex and HeatShield materials when a liner replacement or repair is needed, and we’ll show you the camera footage that justifies the recommendation. If the camera doesn’t show a problem, we won’t invent one. That’s the honest part of the pricing promise. Call (240) 220-9395 for a camera scan and a written report you can see for yourself.
How Often Should a Chimney Be Swept?

The National Fire Protection Association (NFPA 211) says chimneys should be inspected at least once a year, and swept when creosote reaches 1/8 inch or more. For most Gaithersburg homeowners who burn wood through the winter, that means a sweep every year or two. If you burn green wood, or if your chimney doesn’t draft well and smoke hangs in the flue, creosote builds faster. We’ve swept chimneys in the Lakelands that hadn’t been touched in 15 years, and chimneys in Washingtonian Woods that needed a second sweep the same season. Variables matter. That’s why the camera scan is standard on every visit. We’ll tell you what we found, in plain terms, with photos to prove it. Call (240) 220-9395 to book your inspection. Written price first. Photo record when it’s done.
Written by Corrine Halstead, Owner at Level Two Chimney Gaithersburg, serving Gaithersburg and Montgomery County since 2009.





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