Fast, Reliable Chimney Cap & Crown Across Medford
Chimney cap and crown repair in Medford typically runs $280-$890 depending on whether you’re sealing a hairline crack or replacing a full crown, and most jobs are completed in a single visit. We’ve been driving to Medford since 1984, and our technicians know the difference between a South Medford triple-decker stack and a Hillside Colonial chimney by the time they turn onto your street. Call (844) 803-1545 any hour - a live person answers, and we’ll give you a real arrival window, not a four-hour guess.
Why Hearthstone Chimney Co. Is Medford’s Preferred Chimney Cap & Crown Company
Medford homeowners don’t hire us because we’re flashy. They hire us because we’ve been here long enough to remember when the Mystic Valley Parkway was two lanes, and because our 90-Day Done Right Promise means if the crown seal fails, we come back - in writing, no arguing.
Our reviews from Medford customers mention the same things: Russell Haines’s team shows up when they say, explains what they found with photos the homeowner can actually see, and leaves the driveway cleaner than they found it. Response time to Medford averages same-day or next-day during peak season because our routing keeps us in the 02155 and 02153 zip codes several times a week.
We understand Medford’s specific headache: triple-decker chimneys with multiple flues in various states of use, landlord-tenant code requirements, and the accelerated mortar damage that comes from Mystic River moisture meeting Boston freeze-thaw cycles. That local knowledge saves you from paying for the wrong repair twice.
Our Chimney Cap & Crown Services in Medford
Cap Installation
New cap installation in Medford runs $340-$620 for standard single-flue stainless steel, and $580-$1,150 for multi-flue custom caps on triple-decker stacks. We measure on-site because pre-WWI Medford chimneys rarely match modern standard sizes - the flue spacing on a converted coal-era stack in the Wellington area can vary by inches from one house to the next. Our Chimney Cap & Crown team fabricates or sources to fit, and most installations finish in under two hours.

Cap Replacement
Cap replacement is our most common Medford call, especially after winter. The cheap galvanized caps installed by roofers in the 1990s and 2000s are failing now across Hillside and South Medford, and the rust stains on brick are usually the first sign. We remove the old cap, inspect the flue tile beneath for spalling, and install a stainless or copper cap from Famco or Olympia Chimney that outlasts the roof. Typical replacement: $290-$540.

Crown Repair
Crown repair addresses the concrete slab that seals your chimney top, and in Medford’s climate it’s critical work. The combination of Mystic River humidity and hard freeze-thaw cycles erodes mortar joints faster here than in drier towns like Arlington just inland. We grind out deteriorated concrete, re-form the crown with proper slope and drip edge, and seal with professional-grade crown coat. Most Medford crown repairs: $480-$780.

Crown Coating
Crown coating is preventive maintenance for crowns with minor cracking but sound structure - common on 1980s-1990s rebuilds in the Lawrence Estates area. We apply a flexible, breathable membrane that bridges hairline cracks without trapping moisture. At $280-$420, it’s roughly half the cost of full crown repair and extends serviceable life by 8-12 years if done before water penetrates deeply.

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.
Trusted Brands We Service in Medford
We stock caps, crowns, and flashing components from Olympia Chimney, Famco, and Copperfield - brands that publish real specifications and honor warranties without runaround. For Medford customers, this means no waiting two weeks for a special-order cap that fits your non-standard flue. Our trucks carry the common sizes for Medford’s housing stock, and what we don’t have on the shelf we can typically source within 48 hours through our Boston-area distributor. No builder-grade substitutes, no “this is just as good” swaps. The part we quote is the part we install.
Common Chimney Cap & Crown Problems We See in Medford Homes
- Triple-decker multi-flue chaos. A landlord calls for a cleaning on a South Medford rental and discovers three flues - one active, one abandoned, one converted - requiring separate caps, separate inspections, and MA code compliance for the open flue they didn’t know existed.
- River-humidity mortar rot. The Mystic River corridor’s elevated ambient moisture softens crown concrete and mortar joints year-round, then winter freeze-thaw pops the surface off in chunks. Annual inspection catches this before it reaches the flue tile.
- Galvanized cap rust-through. Cheap caps installed during the 1990s roofing boom are failing now across Medford’s Hillside neighborhood, dumping rust onto brick and leaving flues open to water and animal entry.
- Oversized flue openings from coal-era conversions. Original clay liners meant for coal or wood are now serving gas inserts, leaving gaps that standard caps don’t seal properly - a mismatch we correct with custom-fabricated solutions.
Pricing for Chimney Cap & Crown in Medford, MA
| Service | Typical Range in Medford | Most Common Price Point |
|---|---|---|
| Standard cap installation (single flue) | $340-$620 | $485 |
| Cap replacement (remove and replace) | $290-$540 | $395 |
| Multi-flue or custom cap | $580-$1,150 | $745 |
| Crown repair (partial rebuild) | $480-$780 | $595 |
| Crown coating (preventive seal) | $280-$420 | $340 |
| Combined cap + crown work | $680-$1,400 | $895 |
What moves you within these ranges? Height and access (steep roofs on Hillside triple-deckers take longer), flue count and spacing, and whether we find hidden damage once the old cap comes off. We price upfront after inspection - the number on the estimate is the number on the invoice. Call (844) 803-1545 for a free estimate; estimates take 20-30 minutes and we bring a full price book so you know before we leave.
We Also Serve Cities Near Medford
Our route density keeps us in Medford and surrounding towns daily: Somerville to the southwest, Malden to the north, Everett to the east, and Arlington to the west. Same technicians, same trucks, same 90-Day Done Right Promise. If you’re on the border and unsure, call - we likely serviced your neighbor last month.
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 Cap & Crown in Medford
We typically schedule Medford appointments within 24-48 hours, and emergency calls for active water intrusion or animal entry get same-day response when possible. Our routing keeps technicians in the 02155 and 02153 zip codes several times weekly, so we’re rarely starting from far away. Call (844) 803-1545 - a live person answers 24 hours a day and will give you a real arrival window.
Yes - South Medford, Hillside, Lawrence Estates, Wellington, and the Mystic River corridor are all in our regular rotation. We specialize in the multi-flue chimney stacks common to Medford’s triple-decker housing stock, and we understand Massachusetts landlord-tenant code requirements for shared chimneys. We also handle Chimney Liner & Rebuild in Medford when inspection reveals liner damage beneath the cap.
Our base rates are consistent across Greater Boston, but Medford’s triple-decker chimneys often require multi-flue caps or custom fabrication that can run 15-25% above a standard single-flue job. The tradeoff: we know these stacks well, so our inspection time is shorter and our diagnosis more accurate than a company seeing its first Medford triple-decker. You’ll get an exact quote before any work begins.
Yes - active water pouring down the flue, a cap torn off in a storm, or animal entry through a failed crown all qualify for emergency scheduling. Call (844) 803-1545 any hour; a live person will dispatch a technician and give you a realistic arrival time. If the repair can’t be completed safely after dark, we’ll secure the chimney temporarily and return to finish.
Every cap and crown job is backed by our 90-Day Done Right Promise - if it’s not right, we come back and make it right, in writing, no arguing. Manufacturer warranties on Famco, Olympia Chimney, and Copperfield products range from lifetime (stainless caps) to 15 years (crown coatings), and we register them for you. We also provide Chimney Cleaning & Sweep in Medford to maintain the system we just protected.
Ready to stop water, animals, and winter damage from getting into your chimney? Call Hearthstone Chimney Co. at (844) 803-1545 for a free estimate in Medford. We’ll inspect your cap and crown, show you photos of what we find, and give you an upfront price - no surprises, no pressure, just the job done right.
Written by Russell Haines, Owner at Hearthstone Chimney Co., serving Medford since 1984.