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.
Famco Chimney Cap & Crown in Rockville: What to Know First
We replace, repair, and install Famco chimney caps and crowns throughout Rockville, MD. Typical turnaround is three to five business days from written estimate to completed job, depending on whether we’re ordering an OEM Famco part or fabricating a crown on-site. Most Famco cap replacements in Rockville run $340 to $620 installed, and crown work lands between $475 and $1,450 depending on flue count and condition.
This page is for Rockville homeowners who already own a Famco cap or crown, or who had one spec’d on a recent inspection and want to understand what they’re working with. Corrine Halstead and our crew work on Famco products regularly, and we’re an independent Famco service provider: not affiliated with or authorized by Famco, which matters because we can tell you straight when a non-Famco part does the job as well or better. Call (571) 376-7052 for a free estimate on any Famco cap or crown job in Rockville.
How Famco Products Fail - and How We Fix Them
Famco builds solid caps and crowns, and their failure patterns are predictable. Here’s what we actually see on Rockville roofs, and what we do about it:
- Famco single-flue caps with galvanized bases corroding at the screws. The mesh and hood hold up fine, but the sheet-metal base on older Famco SB and SC series caps rusts where the set screws meet the flue tile. Rockville’s summer humidity accelerates it. We replace the base with stainless aftermarket plates when the hood and mesh are still sound, which is half the price of a new cap assembly.
- Crowns cracked by freeze-thaw cycles at the flue joint. Famco’s poured crowns are as good as anyone’s, but no poured crown survives Rockville winters indefinitely without maintenance. Hairline cracks become spalling (surface flaking) within two or three seasons. We grind back the deteriorated concrete, fill with a polymer-modified crown coat, and slope the surface so water sheds away from the flue instead of pooling.
- Famco multi-flue caps sagging on older masonry chimneys. The LT series multi-flue caps are heavier than single-flue units. On 1960s and 1970s Rockville colonials, the top course of brick is often too soft to hold the mounting brackets. We reinforce the crown beneath the brackets before remounting, so the cap doesn’t tilt and leave a gap for rain and embers.
- Custom Famco caps where the mesh gauge was under-spec’d for the installation. We see this on houses built before 2000 where a contractor went cheap. The 3/4-inch mesh on standard Famco caps gaps open after a few seasons of snow load. We swap in stainless 5/8-inch mesh and re-band the hood, which keeps out the starlings, sparrows, and the occasional ember that would otherwise end up on a shingle.
- Rust-through at the cap-to-chimney transition. When a Famco cap is not crimped properly at the flue lip, condensation forms between the cap and the tile, then rusts the seam from the inside out. The visible hood looks fine; the camera scan shows the flue-side rot. We remove the cap, clean the transition, and reseat with a high-temp silicone bed so no water gets underneath the lip.
Our Famco Chimney Cap & Crown Process

Here’s how a Famco job goes from first call to final photo, step by step:
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You call us, a person answers. We listen, set a visit time that works, and text you when our tech is on the way in Rockville.
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Camera scan and measurements. Every Famco job starts with an NFPA 211 Level 2 camera scan. We measure the flue opening, cap footprint, and crown pitch - and show you the footage on the spot. The camera doesn’t guess. Neither do we.
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Written price and scope, before anything is ordered or touched. You get a written price, written scope, written warranty. If your Famco cap just needs a new base and mesh, you’ll see that in writing - not a bundled replacement quote.
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Parts decision. If the existing Famco part is worth saving, we repair it. If not, we order OEM Famco or quality stainless aftermarket depending on lead time and price, and we show you both options in the estimate.
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The repair or install. Cap replacement on a typical single flue takes about 90 minutes. Crown work runs half a day. Ramps and ladder stabilization go down before we go up; the work area gets a drop cloth.
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Photo documentation and follow-through. We photograph every stage before, during, and after, and the finished job gets a full photo record under Haven Standard Clause 4. If the repair isn’t right, our 365-Day Done Right Promise covers it.
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AfterWhat Famco Chimney Cap & Crown Costs in Rockville
Here are the real numbers for the most common Famco scenarios in Rockville. These are installed prices, not parts prices:
- Famco single-flue cap replacement: $340 to $490, depending on flue size and whether we can reuse the existing base.
- Famco custom cap for a multi-flue chimney: $720 to $1,150, including reinforcement of the crown beneath the mounting brackets if needed.
- Crown crack repair with polymer coat: $475 to $650 for a standard two-flue crown.
- Full crown replacement on a large or badly spalled chimney: $825 to $1,450, including form work and a 48-hour cure.
What moves the price: access (steep roofs add ladder and safety time), crown size, flue count, and whether we’re matching an existing Famco footprint or refabricating from scratch. We show you the line-item numbers before we start. Call (571) 376-7052 for a free written estimate on your exact Rockville chimney.
Why Rockville Homeowners Call Level Two Chimney Rockville for Famco Work

Because when a Famco cap fails, the fix either gets done right the first time or it rusts out again in two winters. We work to the Haven Standard, and for our Rockville customers that means a written price before any work starts (Clause 1 of the Haven Standard), a camera scan with the footage shown to you on every visit, and a photo record of the completed job. Every tech who touches a Famco cap for us is background-checked, uniformed, and knows the difference between saving a part and sending you to a full replacement you don’t need. We also work across brands, so if a DuraFlex liner, HeatShield repair, or Gelco accessory is the more honest answer to your chimney problem, that’s what we quote instead.
Frequently Asked Questions
No, not when we use the correct materials and do the work to spec. Famco warranty coverage applies to manufacturing defects, not installation work. If you have a documented manufacturing defect, we’ll tell you to file with Famco before you pay for anything, and we’ll provide the photo evidence to support the claim.
Most cap replacements in Rockville are done within three to five business days. If your Famco cap is an in-stock standard size, we can usually be out sooner. Custom sizes or unusual footprints add manufacturing lead time. You’ll have the exact date in writing before you commit.
Not necessarily, and we’ll show you the camera footage to prove it. If the crown is solid and shedding water, we can replace just the cap and leave the crown alone. If the crown has cracks, we’ll photograph them and show you the difference between what needs work now and what can wait a season. Nothing gets recommended without evidence you can see.
We grind back loose or spalled concrete from the crown surface, fill hairline cracks with a polymer-modified crown coat, and build a slope so water runs off instead of pooling. On Famco poured crowns specifically, we often find the original slope was too flat. The fix is re-sloping, not just patching. The finished crown gets a photo record under Haven Standard Clause 4.
Water gets into the flue and the chase, and then you’re looking at liner corrosion, spalled brick, and in the worst case, a chimney fire if creosote has been soaking up moisture. A cracked crown is a $500 job by the time we fix it. A decaying flue liner from the same crack is a $2,500-plus job. In Rockville’s climate, the crack doesn’t seal itself. Call (571) 376-7052 and we’ll tell you where yours stands.
Written by Corrine Halstead, Owner, Level Two Chimney Rockville at Level Two Chimney Rockville, serving Rockville and nearby areas.





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