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
AfterTrusted Chimney Liner & Rebuild for Cambridge Homeowners
A Cambridge Chimney Liner & Rebuild typically costs $2,800-$7,500 depending on whether you need a stainless steel liner replacement or a partial masonry rebuild, and most projects are completed in a single day. Hearthstone Chimney Co. has been serving Cambridge homeowners since 1984, and our Level-2 camera inspections show you exactly what needs fixing before any work begins. Call us at (857) 392-4709 - a live person answers 24 hours a day, and we’ll schedule your free estimate at a time that works for you.
We’ve rebuilt chimneys in Cambridge’s triple-deckers near Inman Square, restored liners in the historic homes of Brattle Street, and handled partial rebuilds after freeze-thaw damage in North Cambridge basements. The clay flue tiles in many Cambridge homes built before 1960 weren’t designed for modern gas appliances, and the freeze-thaw cycles of New England winters crack masonry that was never meant to handle today’s heating loads. That’s where we come in. Russell Haines and our team document every inspection with photos you can see and a plain-English verdict, so you know what’s urgent, what can wait, and what it will cost before we touch a tool.
What Our Chimney Liner & Rebuild Service Includes
Stainless Steel Liner
Stainless steel liners are the permanent solution for chimneys with cracked clay flue tiles or no liner at all. In Cambridge, we install DuraFlex and Olympia Chimney stainless steel liners for wood-burning fireplaces, gas inserts, and oil-fired systems - each sized to your appliance’s BTU output and your chimney’s interior dimensions. Our technicians measure on-site, fabricate custom lengths, and back the installation with our 90-Day Done Right Promise in writing.
Flexible Liner
Flexible liners navigate the offset flues and tight smoke chambers common in Cambridge’s older housing stock, especially the converted Victorians and 1920s brick colonials around Central Square. We use DuraFlex flexible alloy liners that bend around offsets without losing draft performance, and we always perform a pull test to confirm the liner seats properly at the thimble. Most flexible liner installations in Cambridge are completed in four to six hours with the fireplace ready for use the same evening.
Liner Replacement
When your existing liner is spalled, perforated, or coated with glazed creosote that can’t be safely removed, replacement is the only option that protects your home from carbon monoxide intrusion and chimney fires. We remove the damaged liner using specialized extraction tools, inspect the surrounding masonry with our camera system, and install a new liner sized to current NFPA 211 standards. Every replacement includes a written condition report with photos of the before-and-after flue condition.
Partial Rebuild
Partial rebuilds address localized masonry failure - typically the top four to eight courses of brick, the smoke chamber, or the firebox walls - without the cost of tearing down the entire chimney. In Cambridge, we see this most often after water infiltration through a failed crown or after chimney fires that heat-shock the interior masonry. We match existing brick and mortar where possible, use professional-grade materials from Copperfield for waterproofing, and never recommend a partial rebuild unless the structural base of your chimney is sound.
Full Chimney Rebuild
A full rebuild becomes necessary when the chimney has shifted off its foundation, when multiple wythes of brick are deteriorated through the wall, or when previous repairs have concealed systemic problems. We’ve completed full rebuilds on Cambridge homes in The Port, Area 4, and along Broadway where century-old chimneys had simply reached the end of their service life. Our process includes temporary bracing, course-by-course dismantling, foundation inspection, and reconstruction with proper flue sizing and crown overhang to prevent the same failure from recurring.
Liner Repair
Not every damaged liner needs replacement. For minor cracks, gaps at joints, or localized spalling in otherwise sound clay tile, we apply HeatShield cerfractory resurfacing compound - a ceramic-refractory material that restores the flue’s integrity without removing the existing liner. This is often the right choice for Cambridge homeowners with single-flue systems and limited access for liner extraction. We camera-inspect after every repair to verify the seal, and we tell you honestly when repair is a temporary fix versus when replacement is the smarter long-term investment.
What happens when you call
- 1
A real person answersNo phone trees - you reach a local pro.
- 2
You get an upfront price rangeHonest numbers before anyone is dispatched.
- 3
A background-checked tech heads outLicensed & insured, dispatched right away.
- 4
You approve before work beginsNothing starts until you say go.
Brands We Service for Chimney Liner & Rebuild
We’ve installed and serviced hundreds of DuraFlex liner systems in Cambridge and surrounding communities, and we stock the full range of their rigid and flexible alloy components. Their 316Ti stainless steel and 304 alloys handle everything from high-efficiency gas appliances to wood-burning inserts, and we know their sizing charts well enough to spec a system without the back-and-forth that delays other contractors.
HeatShield is our go-to for liner resurfacing and smoke chamber parging - we’ve applied their cerfractory compound in dozens of Cambridge fireboxes where full liner replacement would have meant significant masonry demolition. We also work regularly with Famco chimney caps and termination fittings, and with Copperfield’s line of crown repair and waterproofing products. Whether your system is DuraFlex, HeatShield, Famco, or any other make, we can inspect it, repair it, or replace it with components that meet or exceed the original specification.
Signs You Need Chimney Liner & Rebuild Right Now
- White efflorescence or spalling brick on the exterior. This means water is getting inside your chimney structure and pushing salts through the masonry. In Cambridge’s freeze-thaw climate, that water expands when it freezes, opening cracks that let more water in. We’ve seen spalled brick lead to full chimney rebuilds within two seasons when the warning signs were ignored.
- Flakes of clay tile in your firebox or cleanout. Those shards are pieces of your flue liner that have detached due to thermal shock or age deterioration. A compromised flue liner allows heat and combustion gases to reach combustible framing, and it reduces draft efficiency. This is not a maintenance item you can defer.
- Smoke or odors entering your living space during operation. Backdrafting often indicates a liner that is too large for your appliance, partially blocked, or perforated. In Cambridge’s tight building stock with modern weatherization, negative pressure compounds the problem. We measure draft and liner sizing as part of every inspection.
- Visible cracks or gaps in the firebox or smoke chamber. These are direct paths for heat and flame to reach the wooden structure of your home. The NFPA recommends immediate correction, and our camera inspection will show you the exact extent of the breach before we quote any work.
- Your chimney has no liner, or you don’t know if it does. Many Cambridge homes built before 1940 were constructed with unlined brick flues, which are no longer code-compliant for any fuel type. A Level-2 inspection with our camera system will confirm what you have, and we’ll explain your options without pressure.
Our Chimney Liner & Rebuild Process - Step by Step
- 1
Schedule your free estimate. Call (857) 392-4709 and a live person will answer, 24 hours a day. We’ll ask about your home’s age, the fuel type you burn, and any symptoms you’ve noticed. Most Cambridge appointments are scheduled within three to five business days, and we confirm the day before.
- 2
Level-2 camera inspection and documentation. Our technician arrives in uniform, introduces themselves, and sets up protective coverings before accessing your chimney. We run a high-resolution camera the full length of your flue, photograph the firebox, smoke chamber, damper assembly, and exterior masonry. You see the images on our tablet as we capture them.
- 3
Plain-English verdict and upfront pricing. Russell Haines reviews every inspection personally. We explain what we found, what needs attention now, what can wait, and what each option costs. The number on your estimate is the number on your invoice - no surprises, no upsells discovered mid-job.
- 4
Professional installation or rebuild. Our background-checked technicians arrive with the materials specified for your job, not whatever was in the truck that morning. For liner work, we use DuraFlex, Olympia Chimney, or HeatShield products as appropriate. For masonry, we match brick and mortar to existing where possible and use Copperfield waterproofing systems to protect the repair.
- 5
Final inspection, documentation, and warranty registration. We camera-inspect every liner installation and photograph completed masonry work. You receive a written report, your 90-Day Done Right Promise documentation, and manufacturer warranty paperwork where applicable. We leave the work area cleaner than we found it, and we’re available by phone if you have questions after we leave.
How Much Does Chimney Liner & Rebuild Cost in Cambridge?
To understand how much Chimney Liner & Rebuild costs, a typical stainless steel liner replacement in Cambridge runs $2,800-$4,500 for a single-flue system, depending on height, diameter, and whether your chimney needs crown or damper work at the same time. Flexible liner installations in offset flues range from $3,200-$5,000. HeatShield liner resurfacing for minor cracks starts around $1,800-$2,800. Partial rebuilds of the top courses or smoke chamber generally fall between $3,500-$6,500, while full chimney rebuilds in Cambridge’s older housing stock can range from $8,000-$15,000 depending on height, accessibility, and whether scaffolding is required.
Several factors move these numbers. Chimney height is the biggest variable - a three-story triple-decker near Inman Square requires more liner footage and longer scaffolding than a single-story ranch in North Cambridge. The condition of your existing masonry determines whether we can anchor a new liner or need to rebuild first. Access matters too: chimneys tight against neighboring buildings or with limited yard space for equipment staging take more labor hours.
To avoid overpaying, get a written estimate that specifies the liner brand, gauge, and alloy; the scope of masonry work if any; and whether the price includes permits, disposal, and final inspection. We provide all of this before you commit. Our free estimates include the Level-2 camera inspection, so you have documented evidence of what needs fixing rather than a contractor’s verbal assurance.
Standing offers that apply: $50 off any repair over $250, free second opinion on any written estimate from another company, and a permanent 5% senior and veteran discount. The $89 seasonal tune-up is also available if your system needs cleaning and inspection before we quote liner or rebuild work.
Chimney Liner & Rebuild Near Cambridge - Our Service Area
We complete chimney liner and rebuild work throughout Cambridge and in neighboring communities including Somerville, Malden, Everett, Medford, Belmont, Brookline, Chelsea, Winchester, Melrose, Stoneham, and Revere. Most Cambridge appointments are available within three to five business days, and we carry common liner diameters and masonry materials on our trucks to minimize return visits. Whether you’re in a Harvard Square condo with a single gas flue or a Porter Square Victorian needing full rebuild, we know the local building stock and the inspection requirements Cambridge inspectors expect.
Serving Cambridge, MA - Our Local Coverage Area
We’re based in the Cambridge area and know this community well. Use the map below to see our service coverage - if you’re nearby, we can almost certainly help.
Frequently Asked Questions - Chimney Liner & Rebuild in Cambridge
Chimney liner and rebuild work restores the safe passage for combustion gases from your fireplace or heating appliance to the outside air. The liner protects your home’s structure from heat and corrosive byproducts, while rebuild work repairs or replaces damaged masonry that supports the liner and maintains structural integrity. Hearthstone Chimney Co. handles everything from minor liner repairs with HeatShield compound to full chimney teardown and reconstruction.
Most stainless steel or flexible liner replacements are completed in a single day, with the fireplace ready for use that evening. Partial rebuilds typically require one to two days depending on weather and cure times for mortar and waterproofing. Full chimney rebuilds in Cambridge generally take three to five days from setup to final inspection. We tell you the timeline before we start, and we don’t leave your job half-finished to chase another call.
Stainless steel liner replacement typically runs $2,800-$4,500, flexible liner installation $3,200-$5,000, HeatShield resurfacing $1,800-$2,800, partial rebuilds $3,500-$6,500, and full rebuilds $8,000-$15,000. Your specific price depends on chimney height, liner diameter, masonry condition, and access. Call (857) 392-4709 for a free estimate with camera inspection - estimates are free, and you’ll have written pricing before any work begins.
Yes. We’ve installed and repaired hundreds of DuraFlex liner systems and applied HeatShield cerfractory compound in Cambridge homes over our 42 years in business. We stock common DuraFlex components and maintain certification with HeatShield’s application protocol. If your system is under manufacturer warranty, our work preserves that coverage.
We answer calls 24 hours a day, 7 days a week, and we prioritize situations where a compromised liner or damaged masonry poses immediate safety risk - carbon monoxide intrusion, active water leaks into living space, or post-fire structural damage. For true emergencies, we’ll schedule inspection as soon as possible and perform temporary stabilization if needed. Call (857) 392-4709 any time; a live person will answer.
Every job is backed by our 90-Day Done Right Promise in writing - if it’s not right, we make it right with no paperwork and no arguing. Manufacturer warranties apply where we install new components: DuraFlex and Olympia Chimney liners carry lifetime limited warranties, HeatShield resurfacing is warranted against material failure. We register all manufacturer warranties on your behalf and provide documentation before we leave.
Clear a path from your entry to the fireplace area, remove fragile items from the mantel and hearth, and ensure we have access to your driveway or parking for our work vehicle. For exterior work, trim any branches within three feet of the chimney crown. We’ll cover floors and furniture with protective sheeting, but the clearer the workspace, the more efficiently we can work. If you have questions about access for a specific property - Cambridge’s narrow lots and tight setbacks are familiar territory for us - call (857) 392-4709 and we’ll walk through it.
Schedule Your Chimney Liner & Rebuild Service in Cambridge Today
Call (857) 392-4709 now - a live person answers 24 hours a day, and we’ll schedule your free estimate at a time that works for your schedule. You’ll get a Level-2 camera inspection, photos you can see, a plain-English verdict, and upfront pricing with no surprises on the bill. We’ve been serving Cambridge homeowners since 1984, and we plan to be here when you need us again. Done right, and we stand behind it.
Written by Russell Haines, Owner at Hearthstone Chimney Co., serving Cambridge since 1984.