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 Crown Repair: The Plano Owner’s Guide
Famco crown repair in Plano typically runs $340-$780 installed, depending on whether we’re sealing hairline cracks or replacing a fully deteriorated crown on a multi-flue chimney. We stock Famco-compatible crown sealants and pre-formed crown forms on every truck, and most repairs are completed in a single visit once the scope is confirmed by camera. Most Plano homeowners discover the problem during a routine sweep or when they notice water staining on the fireplace face after one of our spring storm seasons.
Which Famco Models This Applies To
Famco manufactures venting accessories and chimney components rather than complete chimney systems, so their crown products fall into two categories: the Famco pre-formed galvanized crown forms (typically 13×13 through 17×17 inch base dimensions) and the Famco crown sealant compounds sold in 2-gallon kits for field-formed repairs. The galvanized forms are most commonly found on builder-grade chimneys installed in Plano’s 1990s-2000s construction boom, particularly in neighborhoods like Willow Bend and Kings Ridge where we see them paired with Famco chimney caps from the same era.
To identify your part, check the stamp on the cap or any remaining label on the crown edge. Famco forms use a ribbed base flange that locks into the top course of brick differently than Gelco or Copperfield equivalents, the mounting holes sit ¾ inch from the flange edge rather than the 1-inch spacing you’ll find on Olympia Chimney parts. We source Famco materials through Haven’s buying network alongside DuraFlex, HeatShield, and Gelco products, though we’re an independent service provider with no affiliation to Famco Manufacturing.
The OEM-versus-aftermarket question for Famco crowns is straightforward: for pre-formed replacements, we typically use Gelco or Copperfield equivalents that match the flange geometry at lower cost. For sealant repairs, we use HeatShield CrownCoat or Famco’s own compound depending on crack width and whether the crown has proper overhang and drip edge. The wrong choice is applying sealant over a crown that’s too thin or improperly sloped, which is why we camera the flue interior first, water intrusion from a bad crown often damages the liner before the crown itself looks critical.
Signs Your Famco Crown Repair Is Failing

- Water stains on the firebox walls or ceiling near the chimney. This means water is migrating through crown cracks, running down the flue liner, and exiting at the smoke shelf or damper. In Plano’s clay-heavy soils, that moisture also accelerates spalling on the exterior brick below the crown.
- White efflorescence blooming on exterior brick below the crown. The white powder is mineral salts left behind as water evaporates; it tells us the crown has lost its waterproofing and is wicking water into the masonry continuously, not just during rain events.
- Visible cracks wider than ⅛ inch running across the crown surface. Hairline cracks are normal aging; cracks you can fit a nickel into indicate the concrete or mortar crown has lost structural integrity and will funnel water directly into the chimney stack during our hard spring downpours.
- The crown surface feels sandy or crumbles when scraped lightly. This is advanced deterioration of the Portland cement matrix, common on Famco field-poured crowns in Plano after 15-20 years of thermal cycling. Once the surface is friable, sealant won’t bond reliably.
- Deteriorated or missing caulk at the flue tile-to-crown joint. This gap is a direct path for water and combustion gases. Carbon monoxide can backdraft through this opening in certain pressure conditions, which is why we check it with a draft gauge during every Level 2 inspection.
Before
AfterReplacement Cost & What’s Included
| Service | Price Range | What’s Included |
|---|---|---|
| Crown sealant repair (hairline cracks, sound substrate) | $340-$520 | Surface prep, CrackMagnet flexible filler, CrownCoat application, 5-year warranty |
| Partial crown rebuild (localized spalling, flue tile reset) | $580-$780 | Form and pour new crown section, proper slope and drip edge, 10-year warranty |
| Full crown replacement (multi-flue or advanced deterioration) | $780-$1,400 | Removal, form and pour new concrete crown, flue tile extension if needed, 10-year warranty |
What drives the range: crown size (single flue versus multi-flue), access complexity (steep roof pitch, two-story height), and whether the flue tiles need resetting or the chase cover requires replacement at the same time. Every quote is delivered in writing before work starts under Haven Standard Clause 1, the price you approve is the price you pay. Materials come through our Haven buying network, we don’t mark up Famco, Gelco, or HeatShield products separately from labor.
Every crown repair includes NFPA 211 Level 2 camera inspection of the flue interior, documented photo record per Haven Standard Clause 4, and our 365-Day Done Right Promise. If the sealant fails or the crown cracks within a year, we return and make it right at no charge.
DIY or Call Us?

What you can safely check yourself: from ground level or a sturdy ladder at the gutter line, look for visible cracks, missing chunks, or pooling water on the crown surface after rain. Note whether the crown overhangs the brick by at least 2 inches with a defined drip edge, if water runs straight down the brick face, the drip edge is missing or inadequate.
Where DIY goes wrong: crown work requires working at height on a roof surface that may be steeper than it appears from below. More critically, improper sealant application traps moisture inside the crown instead of repelling it, accelerating freeze-thaw damage. We’ve removed DIY silicone jobs in Plano that turned a $400 sealant repair into an $1,100 full replacement because the silicone peeled in sheets and held water against the concrete for two seasons.
The camera doesn’t guess. Neither do we. If you’re seeing any of the symptoms above, call (469) 240-3101 and we’ll get a technician out with the inspection camera and a written price before any work begins.
FAQs
A properly applied crown sealant typically lasts 8-12 years in North Texas; a poured concrete crown with correct slope and overhang lasts 20-30 years. Our intense summer UV and rapid temperature swings are harder on sealants than freeze-thaw cycles, which is why we specify UV-stable elastomeric products for Plano jobs. Call (469) 240-3101 for an exact quote, estimates are free.
It can be repaired if the crown is structurally sound, properly sloped, and cracks are under ⅛ inch with no spalling. We determine this with a hammer test and moisture meter reading, not by visual guess. If the crown is thinner than 2 inches at any point or the steel mesh reinforcement is exposed, replacement is the only durable option. Call (469) 240-3101 for an exact quote, estimates are free.
Most sealant repairs are completed in 2-3 hours; full crown replacements require 4-6 hours plus cure time before the chimney can be used. We schedule crown pours for morning hours in Plano’s warmer months so the concrete cures properly before evening temperature drops. Call (469) 240-3101 for an exact quote, estimates are free.
We stock HeatShield CrownCoat, CrackMagnet, and pre-formed crown forms in common Plano sizes on every service vehicle. For Famco-specific galvanized forms in unusual dimensions, we source through our Haven buying network with next-day availability, we don’t charge you for a second trip if a special-order part is needed. Call (469) 240-3101 for an exact quote, estimates are free.
Written by Corrine Halstead, Owner, Emberly Chimney Cleaners Plano at Emberly Chimney Cleaners Plano, serving Plano and nearby areas.





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