Fast, Reliable Chimney Repair Across Medford
Chimney repair in Medford typically runs $280-$1,800 depending on scope, and most jobs are completed in a single visit with same-day scheduling available. We’re Hearthstone Chimney Co., and we’ve been answering calls from Medford homeowners since 1984. If you’re seeing crumbling mortar on your triple-decker’s stack, water stains on the ceiling near the flue, or bricks that have started to flake and pop, we’ll come out, photograph what we find, and tell you plainly what needs doing and what it costs before any work starts. Call (844) 803-1545 - a live person answers, 24 hours a day.
Medford’s streets are familiar territory for our technicians. We’ve worked on chimney stacks along Mystic Avenue, repointed brick above the rooftops in South Medford, and rebuilt crowns within sight of the Mystic River. The housing here - dense blocks of 1890s-1930s triple-deckers and two-family Colonials - presents repair challenges you won’t find in newer suburbs. Multiple flues sharing a single stack, abandoned coal-era cleanouts still sitting unsealed in basements, and decades of freeze-thaw damage from those damp Mystic Valley winters. This is the work we do.
Why Hearthstone Chimney Co. Is Medford’s Preferred Chimney Repair Company
We’ve served communities across Greater Boston for over 42 years, and Medford has been central to that work from the start. Our technicians know the difference between a South Medford triple-decker stack and a Hillside Colonial chimney - and they know the specific code issues each one tends to hide.
Our reviews from Medford customers consistently mention the same things: the photos we show them from our Level-2 camera inspections, the plain-English verdict that comes with those photos, and the fact that the price on the estimate matches the price on the invoice. No surprises. No upsell.
Response time to Medford is typically same-day or next-day, depending on call volume and whether the situation is urgent. A leaning stack, active water intrusion, or separated flue liner gets priority scheduling for a Chimney Liner & Rebuild - Medford. For standard repairs, we usually book within 48 hours.
What sets us apart here is documentation. Every inspection ends with photos you can see and a written verdict you can keep. In Medford’s rental-heavy market, that documentation matters - landlords need it for tenant safety compliance, and homeowners need it for their records. We provide both, in writing, with no arguing.
Our Chimney Repair Services in Medford
Mortar Repointing
The freeze-thaw cycle in Medford’s Mystic Valley corridor is brutal on mortar joints. Water seeps in, freezes, expands, and grinds the mortar to powder. We’ve repointed chimney stacks on Salem Street where the pointing had turned to dust almost to the flue line. Our repointing matches the original mortar profile and compressive strength, using professional-grade materials from Olympia Chimney and Copperfield. A typical repointing job on a Medford triple-decker stack runs $450-$850 and takes one day.

Spalling Brick Repair
Brick spalling - that flaking, popping, and crumbling of the brick face - is epidemic on Medford’s older chimneys. The combination of moisture from the Mystic River basin and decades of harsh Boston winters exfoliates the brick surface layer by layer. We see it constantly on the windward sides of stacks in the 02155 zip code. Repair involves removing damaged brick, installing matching replacements, and addressing the moisture source. Typical spalling repair in Medford: $380-$720 for localized work, $1,200-$1,800 if the damage wraps multiple faces of the stack.

Chimney Waterproofing
Water is the enemy of every chimney in Medford, and the local geography makes it worse. The Mystic River and Upper Mystic Lakes keep ambient moisture elevated through the lower neighborhoods, accelerating the deterioration that waterproofing is meant to stop. We apply vapor-permeable sealers from professional-grade lines - never the hardware-store coatings that trap moisture inside. A standard waterproofing treatment for a Medford triple-decker stack runs $280-$450 and carries a 10-year performance expectation.

Flashing Repair
Flashing is the metal barrier where chimney meets roof, and in Medford’s dense housing, it’s often original to buildings from the 1920s or earlier. We’ve found lead flashing on Mystic Valley Parkway homes that had cracked from thermal cycling and was dumping water straight into the attic. Our flashing repair uses custom-fabricated copper or stainless from Famco and DuraFlex, installed with proper step-flashing and counterflashing techniques. Most Medford flashing repairs run $320-$580 and stop the leak the same day.
For chimney rebuilding, tuckpointing, or liner work beyond these four services, our Chimney Repair team handles full-scope projects across the region. We also install and service Chimney Cap & Crown in Medford to prevent the water damage that causes most of the repairs above.

What happens when you call
- 1
A real person answersNo phone trees - you reach a local pro.
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You get an upfront price rangeHonest numbers before anyone is dispatched.
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A background-checked tech heads outLicensed & insured, dispatched right away.
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You approve before work beginsNothing starts until you say go.
Trusted Brands We Service in Medford
We don’t use builder-grade substitutes, and we don’t make you wait three weeks for parts. Our trucks carry professional-grade materials from Olympia Chimney, Famco, and DuraFlex - the brands that professional sweeps and masons specify for their own homes. For Medford customers, that means most repairs are completed in a single visit, with no return trips for missing components. When a specialty order is needed, our supply relationships keep lead times short. The materials matter, but so does the hand that installs them. Our technicians are background-checked, uniformed, and trained to work with these products the way the manufacturers intend.
Common Chimney Repair Problems We See in Medford Homes
- Triple-decker stack complexity. In South Medford especially, a single brick chimney often contains two or three independent flues serving separate units - one active gas insert, one abandoned coal flue, one wood-burning fireplace. We inspect each flue separately, document the condition of each, and flag any abandoned openings that Massachusetts code requires to be capped and sealed.
- Oversized flues from coal-to-gas conversions. The original clay-tile liners in Medford’s 1890s-1930s housing were sized for coal and wood heat. When converted to gas or oil, those flues become dramatically oversized, causing accelerated creosote condensation and liner deterioration that shows up as staining, odor, or drafting problems.
- Unsealed coal-era cleanout doors. Many Medford basements still have the original cast-iron cleanout doors from coal heating days. When these are left unsealed - common in rental properties where ownership has changed hands multiple times - they become code violations and potential carbon monoxide pathways. We document and seal them properly.
- Freeze-thaw mortar destruction. The Mystic Valley’s elevated moisture, combined with Greater Boston’s harsh winters, erodes mortar joints faster here than in drier communities just inland. Annual tuckpointing assessments alongside routine cleanings are a practical necessity for Medford homeowners who want to avoid rebuild-level costs later.
Pricing for Chimney Repair in Medford, MA
Here’s what chimney repair costs in Medford’s market, based on the jobs we’ve completed across 02153 and 02155:
| Service | Typical Range in Medford |
|---|---|
| Mortar repointing (localized) | $450-$850 |
| Spalling brick repair (localized) | $380-$720 |
| Full-face spalling repair | $1,200-$1,800 |
| Chimney waterproofing | $280-$450 |
| Flashing repair | $320-$580 |
| Partial chimney rebuild | $1,400-$3,200 |
| Tuckpointing (full stack) | $850-$1,600 |
What moves the price: accessibility (steep roof pitches common on Medford’s older homes add labor time), the extent of hidden damage found after opening the wall or crown, and whether multiple flues require separate liner or sealing work. We give you the full number upfront - no surprises on the bill. Estimates are free, and we offer $50 off any repair over $250, plus a permanent 5% senior and veteran discount. Call (844) 803-1545 for an exact quote on your chimney.
We Also Serve Cities Near Medford
Our service area covers the full ring of communities around Medford, and we regularly schedule routes that include Medford alongside Somerville, Malden, Everett, and Arlington. The same technician who knows your triple-decker’s stack in South Medford likely worked on a similar building in Somerville’s Union Square or Malden’s Edgeworth the day before. That regional familiarity speeds diagnosis and keeps our response times short across all five cities. We also handle Fireplace Services in Medford for homeowners needing insert repair, damper replacement, or firebox restoration.
Serving Medford, MA - Our Local Coverage Area
We’re based in the Medford area and know this community well. Use the map below to see our service coverage - if you’re nearby, we can almost certainly help.
FAQs - Chimney Repair in Medford
We typically schedule Chimney Cleaning & Sweep - Medford same-day or next-day for urgent issues like active leaks or separated flue liners, and within 48 hours for standard mortar or brick work. Call (844) 803-1545 - a live person answers 24/7 and will find the next available slot.
Yes, we work across both Medford zip codes - 02153 and 02155 - including South Medford, the Hillside, West Medford, and the Mystic River corridor. Our technicians are familiar with the specific chimney configurations common to each area, from triple-decker stacks to single-family Colonials.
Yes, we offer emergency scheduling for situations that pose immediate safety or property risks: leaning stacks, active water intrusion, damaged flue liners, or post-storm structural damage. A live person will answer your call and dispatch a technician as soon as possible, usually within hours.
Medford pricing is comparable to Somerville and Arlington, though triple-decker stacks with multiple flues can run higher than single-flue work in suburban settings because of the additional inspection and documentation required. Our $50 off any repair over $250 and free estimates help keep costs predictable.
Every repair is backed by our 90-Day Done Right Promise - in writing, no arguing. If it’s not right, we come back and make it right. For materials, we honor manufacturer warranties from Olympia Chimney, Famco, DuraFlex, and other professional-grade brands we install. The Promise is governed by our K.E.Y.S. values: Krafted right, Every time, Your home first, Standing behind it.
Ready to get your chimney looked at? Call Hearthstone Chimney Co. at (844) 803-1545 for a free estimate. We’ll show you the photos, explain what you’re seeing in plain English, and give you a price that won’t change. Done right - and we stand behind it.
Written by Russell Haines, Owner at Hearthstone Chimney Co., serving Medford and local communities since 1984.