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.
Before
After
Before
After
Before
AfterFamco Chimney Liner & Rebuild in Chelmsford: What to Know First
We provide independent Famco chimney liner and rebuild service in Chelmsford, with most liner replacements and partial rebuilds completed in a single visit and priced upfront before any work begins. A typical Famco stainless steel liner installation runs $2,800-$4,500 depending on flue height and diameter, while a partial rebuild starts around $3,200. We don’t quote low to get in the door - the number we give is the number on the invoice.
This page is for Chelmsford homeowners who already have a Famco liner, cap, or damper and have been told it needs repair or replacement. Maybe you’ve got water in the firebox, a liner that’s pulled away from the top course, or a chimney sweep who mentioned “spalling” and you want a second opinion with photos you can actually see. Wherever you are in Chelmsford - the older homes near Heart Pond, the newer builds off Route 3, or anywhere in between - we’re a phone call away. Call (978) 991-9492 and a live person will answer, 24 hours a day.
How Famco Products Fail - and How We Fix Them
- Famco 304 stainless flex liners in Chelmsford’s freeze-thaw climate. The 304-grade series that shipped with many Famco caps and top-sealing dampers from the mid-2000s doesn’t hold up like 316L or 316Ti when condensation sits against it through January thaws. We see pinholing near the smoke shelf in Chelmsford colonials where the flue runs exterior on two sides. Our fix: pull the damaged section, inspect the full run with a camera, and replace with 316Ti flex or a rigid DuraFlex equivalent sized to the appliance.
- Famco top-sealing damper cable corrosion. The cable-and-frame assemblies on Famco’s earlier top-mount dampers seize when the stainless cable frays inside the galvanized housing. Homeowners notice the handle won’t budge or the damper hangs open three inches. We replace the cable assembly with OEM or upgrade to a Gelco cap-damper combo if the frame is still sound - done right, and we stand behind it.
- Famco galvanized chase covers on prefab chimneys. The galvanized steel covers on Famco’s factory-built chimney systems rust through at the corners in 12-15 years, faster in Chelmsford where road salt spray drifts off Route 3 and the Lowell Connector. Water stains on the ceiling near the chimney breast are the giveaway. We fabricate a custom copper or stainless chase cover, or source a Copperfield replacement if the dimensions match standard Famco footprints.
- Famco liner collar separation at the thimble. On Famco’s older rigid liner kits, the collar where the liner meets the appliance thimble can work loose from thermal cycling, especially if the original installer skipped the expansion joint. Smoke smell in the basement, soot on the boiler jacket. We reseat with high-temp refractory sealant and add a proper expansion sleeve - the kind of detail that separates a lasting repair from a callback.
- Famco chimney cap mesh degradation. The 5/8-inch spark arrestor mesh on Famco’s standard caps corrodes from the inside out when flue gases condense against it. In Chelmsford, we see this accelerated on north-facing chimneys that never fully dry. Birds get in, or worse, embers get out. We match the cap to the flue size with a Gelco or Olympia Chimney replacement, or fabricate custom if the flue is oversized or offset.
Our Famco Chimney Liner & Rebuild Process
- 1
Call and schedule. A live person answers, day or night. We ask about your Famco component - model if you know it, symptoms if you don’t - and book a Level-2 camera inspection, usually within a few days.
- 2
Inspection with documentation. Our technician runs a camera the full length of the flue, photographs every defect, and explains what you’re seeing in plain English. No jargon, no scare tactics. You get the photos and a written verdict before any repair is discussed.
- 3
Parts decision: OEM or quality aftermarket. If Famco OEM is available and makes sense for your system, we use it. If lead times are long or the OEM part has a known weakness, we’ll recommend DuraFlex, HeatShield, or Gelco equivalents that meet or exceed the original spec. As an independent Famco service provider, we have no obligation to push one brand over another.
- 4
The repair, start to finish. Background-checked, uniformed technicians complete most Famco liner replacements and partial rebuilds in a single visit. We protect your floors, work methodically, and don’t leave until the flue is right and the fire is safe - it’s that simple.
- 5
Testing and sign-off. We pressure-test or smoke-test every liner installation, verify draft with a manometer, and show you the after photos. The 90-Day Done Right Promise goes in writing before we leave: if it’s not right, we make it right, no paperwork, no arguing.
- 6
Cleanup and follow-up. We haul away all debris, leave the work area cleaner than we found it, and check in within 30 days to make sure everything is performing as expected.
What Famco Chimney Liner & Rebuild Costs in Chelmsford
These are real ranges for Famco work we’ve done in Chelmsford homes - not teaser prices that balloon once we’re on site.
| Service | Typical Range | What Moves the Price |
|---|---|---|
| Famco stainless steel liner replacement (flex) | $2,800 - $4,500 | Flue height, diameter, number of offsets, access difficulty |
| Famco rigid liner repair or section replacement | $1,800 - $3,200 | Extent of damage, collar/thimble condition, need for expansion joint |
| Partial chimney rebuild (above roofline) | $3,200 - $6,500 | Linear feet of masonry, scaffold needs, matching existing brick |
| Full chimney rebuild | $8,500 - $14,000 | Height, foundation condition, liner integration, crown and cap |
| Famco top-sealing damper repair or replacement | $650 - $1,400 | Accessibility, frame condition, cap-damper combo vs. cable only |
| Chase cover replacement (galvanized to stainless/copper) | $1,200 - $2,800 | Size, material, pitch, custom fabrication needs |
What moves every price up or down: flue height (Chelmsford’s two-story colonials with walk-up attics add labor), offset angles that fight liner pulls, and whether we discover hidden water damage once the old liner is out. We price it all upfront - a square deal, no surprises on the bill. Call (978) 991-9492 for an exact quote; estimates are free.
Why Chelmsford Homeowners Call Hearthstone Chimney Co. for Famco Work
We’ve been servicing chimneys in Chelmsford for over 42 years, and we’ve learned that Famco components fail in predictable ways if you know what to look for. Russell Haines and our technicians catch liner problems early - the kind that don’t announce themselves until a cold night when you need the stove most.
Our Level-2 camera inspections end with photos you can see and a plain-English verdict. The 90-Day Done Right Promise is in writing with no arguing. If it’s not right, we come back. We work with professional-grade materials from DuraFlex, HeatShield, Gelco, Olympia Chimney, Famco, and Copperfield - no builder-grade substitutes that fail in five years. And when you call (978) 991-9492, a live person answers, 24 hours a day, every day. We’ll be there when we say.
FAQs
No - independent repair by a qualified chimney professional does not automatically void your Famco warranty, though using non-OEM parts may limit coverage on those specific components. As an independent Famco service provider, we document every part source and installation detail so you have a record if a warranty question ever arises. If your system is still under Famco’s original warranty, we’ll note that before recommending aftermarket alternatives. Call (978) 991-9492 and we can check your install date and coverage.
Most Famco stainless steel liner replacements are completed in a single day, with the crew arriving between 8 and 9 a.m. and finishing by late afternoon. A straightforward flex liner pull-and-replace on a two-flue Chelmsford colonial takes 4-6 hours; jobs with multiple offsets or a hidden thimble repair can run into a second day. We tell you the realistic timeline before we start, not an optimistic guess to get the signature. Background-checked, uniformed technicians complete most jobs in a single visit.
We repair Famco liners when the damage is localized and the surrounding material is sound - a separated collar, a cracked section near the top, or minor corrosion spots that can be patched with HeatShield or section-replaced. Full replacement is necessary when the liner shows widespread pinholing, significant thinning, or delamination that compromises the flue’s ability to contain heat and gases. Our camera inspection shows you exactly which situation you’re in, with photos, before you decide. No recommendation without evidence you can see for yourself.
Famco OEM parts are available for most current and recent-discontinued lines, though lead times vary from a few days to several weeks for specialized collars and damper assemblies. When OEM delays would leave you without heat, we source quality aftermarket equivalents from DuraFlex, HeatShield, or Gelco that meet or exceed UL 1777 standards. We explain the trade-off - OEM fit vs. availability, warranty implications, price - and let you choose. Nothing is installed without your go-ahead.
The National Fire Protection Association recommends annual Level-1 inspection for all chimney systems, and we add a Level-2 camera inspection every 3-5 years for Famco liners in active use - sooner if you burn more than three cords a year or notice performance changes. In Chelmsford, where freeze-thaw cycles accelerate metal fatigue, that camera look every few years catches the pinholing and collar separation before they become safety issues. The $89 Seasonal Tune-Up includes a basic inspection; ask about it when you call.
Ready to get your Famco chimney liner or rebuild sorted? Call (978) 991-9492 for a free estimate. A live person will answer, day or night, and we’ll get you on the schedule with a technician who knows Famco systems inside and out. We’ll be there when we say, we’ll show you photos of what we find, and we’ll stand behind the work with the 90-Day Done Right Promise - in writing, no arguing.
Written by Russell Haines, Owner, Hearthstone Chimney Co. at Hearthstone Chimney Co., serving Chelmsford and nearby areas.