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 Boston: What to Know First
We provide independent Famco chimney cap and crown service throughout Boston, with most repairs completed in a single visit and upfront pricing agreed before we start. A standard Famco cap replacement runs $280-$520; crown repair or coating typically falls between $340-$780 depending on accessibility and the condition of the existing masonry. This page is for homeowners who already have a Famco product on their chimney and need straight answers about what’s failing, what fixing it costs, and who can do the work without voiding whatever warranty remains. Call (857) 597-5950 - a live person answers, 24 hours a day.
How Famco Products Fail - and How We Fix Them
- Famco 304 stainless single-flue caps: The mesh screen on these welds at stress points that see constant thermal cycling. In Boston, where heating season runs five months and temperature swings hit 40 degrees in a day, that weld fatigue shows up as screen separation by year seven or eight. We remove the cap, assess whether the base frame is still square, and either re-screen with heavier-gauge mesh or source a replacement cap that fits the existing flue without disturbing the surround.
- Famco galvanized multi-flue caps (Galvanized Series): The galvanized coating holds up poorly against Boston’s freeze-thaw and the sodium chloride in road salt that gets airborne near busy streets. We see rust-through at the drip edge first, usually in homes within two blocks of major arteries like Commonwealth Avenue or Mass Ave. We don’t re-coat galvanized caps - the base metal is already compromised. We replace with 304 or 316 stainless, depending on the flue configuration and your preference.
- Famco wind-directional caps (WindBeater series): The rotating hood seizes when the brass bushing corrodes, which happens faster if the cap sits above a gas flue that doesn’t run hot enough to drive off moisture. A seized WindBeater becomes a fixed cap with worse draft characteristics than a standard model. We disassemble the hood, replace the bushing and pin with marine-grade hardware, or convert to a fixed high-vent cap if the homeowner wants zero maintenance.
- Famco crown-mounted caps (CrownSeal integrated systems): These rely on a factory-formed crown that mates to the cap base. When the crown cracks - and it will, because Famco’s CrownSeal mix is stiffer than traditional mortar and doesn’t move with the brick below - water enters at the cap-to-crown joint and pools where you can’t see it. We remove the cap, cut out the failed CrownSeal, re-pour with a proper Portland-based crown mix sloped at 3/4 inch per foot, then reinstall the cap with a flexible sealant at the joint.
- Famco outside-mount caps on unlined brick chimneys: The cap frame anchors through the brick into the flue wall, and in Boston’s older housing stock those anchor points often hit deteriorated mortar from a century of coal and oil firing. The cap loosens, tilts, and eventually leaks at the frame. We don’t just re-anchor - we pull the cap, inspect the flue wall with a camera, and if the brick is sound we reset with stainless wedge anchors and a bed of polyurethane sealant. If the wall is compromised, we tell you before drilling another hole.
Our Famco Chimney Cap & Crown Process
- 1
Call and schedule. A live person answers, asks what you’re seeing (water, rust, draft problems, animal entry), and books a visit. We don’t give a firm price over the phone because we haven’t seen the chimney yet, but we’ll quote the inspection fee and explain our $50 off any repair over $250 offer.
- 2
Level-2 camera inspection. Our technician arrives in uniform, sets up the camera, and documents the flue interior, the crown surface, and the cap mounting condition. You see the photos on a tablet before we write the estimate. No photos, no recommendation - that’s our rule.
- 3
Parts decision. If your Famco cap is still in production, we quote OEM. If it’s discontinued - the pre-2012 galvanized multi-flue line, for instance - we source quality aftermarket from our regular suppliers, or fabricate from 304 stainless if the flue configuration is unusual. We explain the trade-off and the price difference, and you decide.
- 4
The repair. For cap replacement, we remove the old unit, inspect the flue tile or liner top, set the new cap with proper clearances, and seal penetrations. For crown work, we grind to sound concrete, apply a bonding agent, and pour or trowel the new crown with a drip edge formed in. Most jobs finish in three to four hours.
- 5
Test and document. We run a smoke test or draft gauge check to confirm the cap isn’t restricting flow, photograph the completed work, and leave you with a written invoice, the 90-Day Done Right Promise, and our direct line if anything doesn’t look right after the first rain.
- 6
Cleanup. We haul away the old cap and debris. No dumpster in your driveway, no nails in the shrubbery.
What Famco Chimney Cap & Crown Costs in Boston
| Service | Typical Range | What Moves the Price |
|---|---|---|
| Famco cap replacement (standard single-flue) | $280-$420 | Flue diameter, roof pitch, stainless grade |
| Famco cap replacement (multi-flue or custom) | $380-$520 | Flue spacing, screen mesh gauge, wind-rating |
| Crown repair (partial, under 25% of surface) | $340-$480 | Height, accessibility, number of cracks |
| Crown coating (HeatShield or similar) | $420-$620 | Crown size, number of flues, prep required |
| Full crown rebuild with cap reinstallation | $680-$780 | Brick condition, liner termination, scaffolding |
These are 2024-2025 Boston market prices for our labor and professional-grade materials. We don’t mark up parts and hide it - the number on the estimate is the number on the invoice. Call (857) 597-5950 for an exact quote; estimates are free.
Why Boston Homeowners Call Hearthstone Chimney Co. for Famco Work
We’ve been answering the phone with a live person for over 42 years, and we’ve learned that a homeowner who’s been burned once doesn’t want promises - they want proof. Our Level-2 camera inspections end with photos you can see and a plain-English verdict. Our 90-Day Done Right Promise is in writing, with no paperwork and no arguing. If it’s not right, we come back. Our technicians are background-checked and uniformed, and they carry Famco-compatible inventory along with DuraFlex, HeatShield, and Gelco alternatives so the job doesn’t stall waiting for parts. We’re not the cheapest outfit in Boston. We’re the one that plans to be here when you call back in thirty years.
FAQs
No - provided we use Famco OEM parts where they’re still available, and provided the original warranty period hasn’t expired. As an independent Famco service provider, we’re not affiliated with the manufacturer, but we follow their installation specs and document our work so any warranty claim you make later has support. If your cap is out of warranty, we explain which aftermarket options match or exceed Famco’s original specs.
Most single-flue replacements take two to three hours from ladder set to final photo. Multi-flue caps or jobs requiring crown repair first run four to six hours. We complete most jobs in a single visit because our trucks carry the common Famco sizes and the tools to adapt when the flue isn’t quite standard.
If the crown has hairline cracks with no spalling and the steel mesh reinforcement inside isn’t rusted and pushing concrete off, we can coat it with a flexible crown sealant and extend its life five to ten years. If the crown is cracked through, has exposed rebar, or is separating from the brick below, coating it is a waste of your money - we recommend full rebuild. We show you the camera evidence and explain which category you’re in before quoting either option.
We stock the current Famco stainless cap line in common sizes, and we have relationships with regional distributors for discontinued models. If your cap is a rare size or custom fabrication, we install a temporary weather cap at no charge while the permanent unit is built. Your flue is never left open to rain.
Water stains on the ceiling near the chimney, rust on the firebox, or a damp odor after rain can come from either. A cap with missing or separated mesh lets water in directly; a crown with cracks lets it run down the flue wall. We use the camera to trace the water path - the stain pattern alone doesn’t tell the story. Call (857) 597-5950 and we’ll sort it out on the first visit.
Written by Russell Haines, Owner, Hearthstone Chimney Co. at Hearthstone Chimney Co., serving Boston and nearby areas.





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