Fast, Reliable Chimney Repair Across Grafton
Chimney repair in Grafton typically costs between $450 and $2,800 depending on the scope, with most standard mortar repointing and flashing jobs running under $1,200 and full rebuilds on older village-core stacks reaching the higher end. We’re usually on site in Grafton within 24 to 48 hours of your call, and most repairs are completed in a single visit. If you’re seeing crumbling mortar, water stains on the ceiling near your chimney breast, or bricks that look like they’re shedding layers, the freeze-thaw cycles in central Worcester County have likely done what they do to every unprotected masonry stack in this town.
We’ve been working on Grafton chimneys since the early 1980s, back when the North Grafton commuter-rail expansion was just getting underway and the big suburban colonial developments were still farmland, so if you need Chimney Cleaning & Sweep - Grafton, you’re calling a crew that knows this town block by block. That means we’ve watched the two distinct housing stocks in this single ZIP code age in completely different ways. The pre-WWII mill cottages and capes in South Grafton and Grafton Center have their own set of problems, entirely separate from the prefabricated fireplace systems installed in the 1995-2010 builds near the station. We know which is which before we pull up to the curb, and we carry the right materials for both. Call (844) 803-1545 and a live person will answer, any hour of any day.
Why Hearthstone Chimney Co. Is Grafton’s Preferred Chimney Repair Company
Grafton homeowners don’t call us because we’re flashy. They call us because we show up when we say we will, we explain what we found in plain English, and we put our guarantee in writing with no arguing. Over 42 years in business means we’ve repaired chimneys on Brigham Hill Road, along Route 140, and in the tight lots behind the South Grafton village center where access alone takes planning.
Our Chimney Repair team documents every inspection with Level-2 camera footage you can see yourself, followed by a written verdict that tells you exactly what is wrong, what it will cost, and what happens if you wait. No surprises on the bill. The number on the estimate is the number on the invoice.
Response time to Grafton runs same-day or next-day for standard calls, and we carry professional-grade materials from Olympia Chimney, Famco, and Copperfield on our trucks so we’re not ordering parts and making you wait. Our technicians are background-checked, uniformed, and trained to work on both historic masonry and modern prefabricated systems. The 90-Day Done Right Promise applies to every job in Grafton, backed in writing, governed by our K.E.Y.S. code: Krafted right, Every time, Your home first, Standing behind it.
We also know the local terrain. A chimney on a hillside near Lake Ripple faces different wind and water exposure than one in the flatter North Grafton subdivisions. That kind of local knowledge changes how we approach waterproofing and crown repair.
Our Chimney Repair Services in Grafton
Mortar Repointing
The freeze-thaw cycling in Grafton is among the most aggressive in Massachusetts, and the original lime mortar in those South Grafton mill-era chimneys was never formulated to survive six decades of it. We grind out deteriorated joints to proper depth and repoint with color-matched, breathable mortar that moves with the brick instead of fighting it. Most repointing jobs on a standard single-flue stack in Grafton run $850-$1,400 and are finished in one day.

Spalling Brick Repair
Spalling, the flaking and crumbling of brick faces, is what you see when water has already gotten inside the masonry and frozen its way back out. In Grafton Center’s older colonials, we regularly find spalling concentrated on the south and west faces where sun exposure creates rapid temperature swings after wet weather. We remove damaged brick, match replacement units to the original, and address the water source so it does not repeat. Individual brick replacement starts around $350; partial rebuilds of spalled courses run $1,200-$2,200.

Chimney Waterproofing
Grafton’s 55-65 inches of annual snow sits on chimney crowns and soaks into porous brick through March and April, then refreezes on the first cold night. Our waterproofing treatment uses vapor-permeable sealers from professional-grade suppliers, applied after any needed repointing, so moisture can escape from inside but cannot enter from outside. A standard waterproofing treatment on a Grafton masonry chimney runs $600-$950 and carries a 10-year performance expectation when properly maintained.

Flashing Repair
The intersection where your chimney meets the roof is the most common leak point we find in Grafton, especially on the older homes with stepped flashing that has worked loose after decades of thermal cycling. We fabricate and install custom flashing with proper counterflashing integration, sealed with high-temperature compounds. Most flashing repairs in Grafton run $450-$850, and we warranty the workmanship under our 90-Day Done Right Promise.
For chimneys where the crown or cap is the primary failure point, we also handle Chimney Cap & Crown in Grafton with poured concrete crowns, pre-formed caps, and custom copper or galvanized installations.

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.
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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 Grafton
We stock parts and materials from Olympia Chimney, Famco, and Copperfield on our Grafton-area trucks, which means most jobs do not wait on shipping. Olympia’s stainless flue liners and Famco’s ventilation components are what we specify for the oversized masonry stacks in South Grafton that need proper sizing for modern gas and oil appliances, and we handle Chimney Liner & Rebuild - Grafton jobs start to finish. Copperfield’s crown repair compounds and waterproofing agents handle the freeze-thaw punishment this town dishes out. When a North Grafton prefab fireplace needs a new chase cover or termination cap, we measure, fabricate, and install without the two-week delay you’d get from a contractor who orders everything from a catalog.
Common Chimney Repair Problems We See in Grafton Homes
- Crown cracks after February freeze-thaw. Every late winter, Grafton chimneys absorb snowmelt during the day and refreeze overnight. The crown, the concrete slab at the top of your chimney, takes the worst of it. Hairline cracks become water highways by April, and by October you’ve got interior ceiling damage.
- Oversized flues in South Grafton mill housing. Those handsome brick chimneys on Pleasant Street and near the old mill villages were built for coal furnaces with massive flue requirements. Modern gas and oil appliances exhaust into flues three times too large, causing acidic condensation that destroys clay tile from the inside. The masonry looks fine from the sidewalk. The inside is another story.
- Corroded chase covers on 1990s-2000s prefabs. The galvanized steel chase covers installed on North Grafton’s suburban colonials are hitting 20-30 years of service. Rust stains on the siding, water in the firebox, and deteriorated firestop gaskets are the signals. We replace with stainless or copper that outlasts the original by decades.
- Failed flashing at roof intersections. Grafton’s combination of heavy snow load and older roof geometries in the village cores creates chronic flashing separation. Homeowners often mistake it for a roof leak and pay for unnecessary shingle work when the real problem is the chimney-to-roof seal.
Pricing for Chimney Repair in Grafton, MA
We believe in upfront pricing because nobody likes surprises on the invoice. Here is what chimney repair costs in Grafton’s market as of 2025:
| Service | Typical Range in Grafton |
|---|---|
| Mortar repointing (standard single flue) | $850 - $1,400 |
| Individual brick replacement / small spall repair | $350 - $650 |
| Partial rebuild (2-4 courses) | $1,200 - $2,200 |
| Full chimney rebuild (above roofline) | $3,500 - $6,500 |
| Chimney waterproofing treatment | $600 - $950 |
| Flashing repair / replacement | $450 - $850 |
| Crown repair or pour | $750 - $1,500 |
| Level-2 camera inspection with written report | $289 - $350 |
What moves you within these ranges? Height and access, the extent of mortar deterioration, whether we need scaffolding or just ladders, and whether the flue requires relining in addition to exterior repair. We do not quote over the phone for rebuilds, but we do provide free, no-obligation written estimates on site. Our current standing offer: $50 off any repair over $250, plus a permanent 5% senior and veteran discount. Call (844) 803-1545 to schedule.
We Also Serve Cities Near Grafton
Our repair crews work throughout central Worcester County and into neighboring communities. If you are in Grafton proper, you’re covered. We also regularly travel to Elyria, North Ridgeville, Olmsted Falls, and Oberlin for chimney repair and related services. The same live-answer phone, same upfront pricing, same 90-Day Done Right Promise applies.
For homeowners whose fireplace system needs attention beyond the chimney structure itself, we also provide Fireplace Services in Grafton including firebox repair, damper replacement, and gas log troubleshooting.
Serving Grafton, MA - Our Local Coverage Area
We’re based in the Grafton 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 Grafton
We typically schedule standard chimney repairs in Grafton within 24 to 48 hours, and emergency calls for active leaks or structural hazards get same-day priority. Our technicians are dispatched from the Worcester County area, so we’re not driving down from Boston or across from the Berkshires. Call (844) 803-1545 anytime, day or night, and a live person will set your appointment.
Yes. We repair chimneys throughout Grafton’s 01519 ZIP code, from the pre-WWII housing stock in South Grafton and Grafton Center to the suburban developments near North Grafton station. The two areas require entirely different expertise, materials, and often equipment access, and we carry both on our trucks.
Yes. Our phones are staffed by a live person 24 hours a day, 7 days a week, including holidays. If you have a chimney fire, sudden collapse, or active water intrusion threatening interior damage, we will dispatch a technician for same-day emergency assessment and temporary stabilization. Full repairs may require daylight and dry conditions, but we do not leave you waiting until Monday morning.
Grafton pricing runs roughly comparable to Shrewsbury and Westborough, slightly below Boston metro rates due to lower travel and parking costs. The unique split in Grafton’s housing stock means some jobs are simpler than they appear and some are more complex, so we always inspect before quoting. Our free estimate ensures you know exactly where you stand before any work begins.
Every repair is covered by our 90-Day Done Right Promise in writing. If anything we repaired is not performing as it should, we return and make it right with no paperwork and no arguing. Materials carry their own manufacturer warranties, and our workmanship guarantee is backed by a company that has served local communities for over 42 years and plans to be here for decades more. Call (844) 803-1545 for your free estimate.
Written by Russell Haines, Owner at Hearthstone Chimney Co., serving Grafton since 1984.